EP4130408A1 - System and method for temperature control of a room by means of a ceiling - Google Patents

Abstract

A ceiling temperature control system has a solid and a fluid line. A surface of the solid provides a temperature control surface of the ceiling temperature control system. The fluid conduit has an internal portion located within the solid. The internal portion is thermally coupled to the solid and has a cavity configured to receive a fluid. The ceiling temperature control system is characterized in that a volume of the cavity in relation to a surface area of the temperature control surface is at least 2 l/m², and in that the cavity has a cross-sectional area that surface area of at least 8 cm².

Description

The present invention relates to ceiling heating and/or cooling, in particular ceiling heating and/or cooling in connection with concrete core activation.

BACKGROUND OF THE INVENTION

In the construction industry there is a strong desire for energy efficient heating and/or cooling systems. Over the past few years, systems with underfloor heating and ventilation systems with heat recovery have established themselves as the standard, particularly in residential construction and in smaller buildings such as single-family homes. Corresponding systems can be operated in an energy-efficient manner, but generate relatively high acquisition costs, and operation involves the risk of incorrect operation, which can lead to a deterioration in energy efficiency. The risk of incorrect operation results, for example, from a moderate temporal and spatial controllability of corresponding systems, which can lead to overheating with excess heat. To restore an acceptable room temperature, the excess heat is removed from the building, usually through window ventilation, which reduces the energy efficiency of heat recovery. The moderate temporal controllability is a consequence of the thermal inertia of the floor with a large heat capacity. The moderate spatial controllability arises above all in smaller buildings, such as single-family houses, in which a heating and/or cooling system with a single heating/cooling circuit is typically provided. To improve controllability, underfloor heating and heat recovery are sometimes combined with other heating systems, such as radiators, which can be better controlled. In particular, radiators improve the spatial and temporal controllability of the system with underfloor heating and heat recovery due to their individual controllability and their quicker and higher adjustable surface temperature.

Ceiling heating/cooling systems can have a number of advantages over other heating/cooling systems, particularly underfloor heating combined with a heat recovery ventilation system, or even radiators combined with underfloor heating. In ceiling heating / cooling systems is typically a heating or cooling in the form of a warm or cold fluid through a Fluid line guided in a ceiling, the surface of which serves as a heating/cooling surface. In this way, ceiling heating/cooling systems use the otherwise little-used ceiling surface as a heating/cooling surface (temperature control surface), so that other surfaces such as the floor or walls are available for other uses. The ceiling surface offers a large exposed surface area compared, for example, to a radiator or a floor that is partially used for other purposes and is therefore at least partially thermally insulated. Because of the large exposed surface area, a large heating/cooling capacity can be provided even when a temperature difference between the ceiling surface and the room temperature is comparatively small. Efficient heating or cooling is thus possible even if the temperature of the heating or cooling medium only deviates slightly from an ambient temperature, for example the room temperature or a temperature of an outdoor area in relation to the building. As a result, the efficiency of a heat/cold source that provides the heat or cold of the heating or cooling medium, for example a heat pump, can be improved. This is due to the fact that the efficiency of the heat pump increases as the temperature of the warm or cold fluid deviates less from the ambient temperature, i.e. as the temperature difference between the condensation and evaporation temperatures decreases.

A decisive disadvantage of ceiling heating/cooling systems known from the prior art is their great inertia, which, similar to systems with underfloor heating, can result in poor temporal and/or spatial controllability. The large inertia is due to a transfer of heat or cold from the fluid line through a solid of the ceiling to the ceiling surface serving as a heating/cooling surface. The heat or cold is absorbed by areas of the solid that do not directly contribute to heating or cooling. Especially when the solid has concrete with a high heat capacity (heat capacity per mass typically 0.8 J/(g K) to 1.1 J/(g K), heat capacity per volume typically 1.2 J/(cm ³ K) to 2.8 J/(cm ³ K)), a lot of heat or cold is stored in the solid, which is not immediately available for heating or cooling, and makes it difficult to regulate over time. As explained at the outset in connection with underfloor heating, a heating/cooling system with a single heating/cooling circuit or a few heating/cooling circuits is typically provided for reasons of cost, particularly in smaller buildings such as single-family homes. This makes spatial controllability more difficult. On the other hand, the provision of several heating/cooling circuits that can be controlled independently of one another, as is typically the case in larger residential or office buildings, generates additional costs.

Suggested solutions in the prior art for improving the temporal and/or spatial controllability of ceiling heating/cooling systems relate to a faster Transport of heat or cold from the fluid and the fluid line through the solid material of the ceiling to the ceiling surface that is in direct contact with the ambient air to be tempered. A proposed solution provides for forming a fluid line for the fluid close to this ceiling surface. According to another proposed solution, the fluid line should be designed with a small laying distance between parallel sections of the fluid line. For example, teaches AU2009 225345A1 a laying distance of 15 to 35 cm.

Alternatively or additionally, a thickness of the solid of the cover can be selected to be small, for example 8 cm or less, in order to reduce the total heat capacity of the solid and thus the thermal inertia. It is also possible to actively regulate the time of heat/cold input into the ceiling area using appropriate devices or to improve spatial controllability by increasing the number of heating/cooling circuits.

What the aforementioned proposed solutions have in common is that they aim to transport the heat or cold to the ceiling surface in a more targeted and/or faster manner, with the transport of heat or cold into the solid material of the ceiling being reduced at least in absolute terms. Thus, although the proposed solutions improve controllability, this is typically accompanied by an increased flow temperature, which in corresponding systems favors faster controllability of the temperature. However, the increased flow temperature typically affects the energy efficiency of the system. In addition, with corresponding ceiling heating/cooling systems, efficient use of the ceiling for other functions of the heating/cooling system, for example as heat and/or cold storage, is regularly not taken into account. Improvements in ceiling heating/cooling systems to increase energy efficiency and/or temporal and/or spatial controllability are desirable, particularly to implement a ceiling heating/cooling system for a single-family home using an air-to-water heat pump with a seasonal performance factor from 4.5 can be operated.

SUMMARY OF THE INVENTION

The invention solves this problem by means of a ceiling temperature control system according to claim 1, which enables a large transfer of heat or cold from a fluid line into a solid. As a result, a temperature spread between the flow and return temperatures can be kept low, thus improving energy efficiency. In addition, a storage of heat or cold in the solid and thus a dual use of the ceiling temperature control system is favored. By using the twice Ceiling temperature control system, an annual performance factor of an optionally available heat pump, which provides the flow temperature, can be improved, for example to a value of at least 4.5. The object is also achieved by a method for tempering a room according to claim 14. Claim 15 specifies a method for producing a ceiling temperature control system. The dependent claims relate to advantageous embodiments of the ceiling temperature control system.

According to a first aspect of the disclosure, a ceiling temperature control system has a solid and a fluid line. A surface of the solid provides a temperature control surface of the ceiling temperature control system. The fluid conduit has an internal portion located within the solid. The internal portion is thermally coupled to the solid and has a cavity configured to receive a fluid. The ceiling temperature control system is characterized in that a volume of the cavity is at least 2 l/m ² in relation to a surface area of the temperature control surface, and in that the cavity has a cross-sectional area that includes a surface area of at least 8 cm ² .

Due to the increased cross-sectional area, the fluid line has a significantly reduced flow resistance. The significantly reduced flow resistance results, among other things, from the fact that the flow resistance does not decrease linearly with increasing cross-sectional area, i.e. it does not decrease disproportionately. Thus, the fluid and the heat or cold contained therein can flow through the fluid line largely unhindered. This allows the fluid to effectively transport the heat or cold through the solid and transfer it to the solid along the fluid line. Consequently, the return temperature of the fluid after flowing through the fluid line is close to the flow temperature. Due to the low temperature difference between the flow temperature and the return temperature, heating is possible even with a low flow temperature, such as that which can be provided energy-efficiently by a heat pump, in particular an air-to-water heat pump, or by a solar thermal system even on days with moderate solar radiation. This improves the energy efficiency of the ceiling temperature control system.

The effective transfer of heat or cold also favors the use of the solid as heat or cold storage. Thus, the ceiling temperature control system can store heat or cold generated at times of favorable conditions. For example, a heat pump (eg an air-to-water heat pump) can generate heat in an energy-efficient manner during the day and store it in the solid and/or generate cold in an energy-efficient manner at night and store it in the solid. Alternatively or additionally, a solar thermal system can generate heat during the day. Alternatively, the heat pump can be operated at times when electrical power to operate the heat pump is inexpensive, plentiful and/or is available from efficient generation, for example due to intensive solar radiation on a photovoltaic system or due to favorable wind conditions at a wind turbine.

By combining heat storage and temperature control in one and the same structure, the heat or cold stored in the solid at times of favorable conditions can be used from the surface of the same solid for heating and cooling. The two functions thus synergistically improve the energy efficiency of the ceiling temperature control system. In addition, a power load shift from times when power is scarce or expensive to times when power is plentiful or cheap can be made possible.

In preferred embodiments, a heat capacity of the solid in relation to a surface area of the temperature control surface is at least 50 Wh/(Km ² ), preferably at least 60 Wh/(Km ² ), preferably at least 70 Wh/(Km ² ), preferably at least 80 Wh/( Km ² ), preferably at least 90 Wh/(Km ² ), preferably at least 100 Wh/(Km ² ), preferably at least 110 Wh/(Km ² ), in particular at least 120 Wh/(Km ² ) _.

In preferred embodiments, the solid is at least partially formed by concrete, preferably by concrete with a mass-related heat capacity of 0.8 J/g K to 1.1 J/g K and/or with a volume-related heat capacity of 1.2 J/cm ³ K to 2.8 J/cm ^3K

The solid can have a thickness of at least 10 cm, in particular at least 12 cm, at least 14 cm, or at least 16 cm.

The high heat capacity favors the storage of heat (cold) in the solid while maintaining a low (high) flow temperature. A high heat capacity usually goes hand in hand with a sufficient thickness of the solid.

The internal portion of the fluid conduit may have a surface area of which at least 80%, preferably at least 90%, is in direct or indirect but thermally conductive contact with the solid. Said indirect but thermally conductive contact can be made by means of a thermal coupling means which is arranged between the surface of the internal section and the solid and is in direct contact with the internal section and the solid.

A corresponding thermal contact promotes the transfer of heat or cold from the fluid line to the solid.

In the solid, a first reinforcement and a second reinforcement can be arranged at different positions along a direction perpendicular to the tempering surface. The internal portion may be located between the first armor and the second armor along the direction perpendicular to the tempering surface.

An arrangement of the fluid line in the area between the first and the second reinforcement, which is also referred to as the neutral zone, minimizes an otherwise possibly disadvantageous influence of the fluid line on the mechanical stability of the solid.

The internal section can be at least partly made of steel, preferably with a mass fraction of at least 60%, preferably at least 80%, in particular at least 95%.

Metals such as steel provide high thermal conductivity, especially when compared to plastics. As a result, the transfer of heat or cold from the fluid to the solid can be improved. Steel can offer cost advantages over other metals such as copper.

The steel may be stainless steel, preferably stainless steel that is resistant to corrosion, particularly to the fluid.

The internal section can be formed at least partially by a corrugated tube, preferably by a corrugated steel tube, in particular by a corrugated stainless steel tube or can include such a tube.

The use of corrugated tubing simplifies the laying of the fluid line and can enable a tool-free, flexible and/or time-efficient laying. In the case of versions made of steel corrugated pipe or stainless steel corrugated pipe, connections between different sections of the fluid line can also be made without tools, flexibly and/or in a time- and cost-efficient manner using inexpensive flange systems. In embodiments in which the solid is produced, for example cured, at the building site, the advantages of tool-free, flexible and/or time-efficient laying are particularly evident.

The surface area of the cross-sectional area of the cavity can be at least 12 cm ² , preferably at least 16 cm ² , in particular at least 18 cm ² .

The surface area of the cross-sectional area of the cavity can be at most 350 cm ² , preferably at most 300 cm ² , in particular at most 250 cm ² .

A correspondingly enlarged cavity can further improve the flow resistance of the fluid line without compromising the mechanical integrity of the solid.

The cross-sectional area may have said surface area along at least 80%, preferably along at least 90%, preferably along at least 95%, preferably along at least 98%, preferably along at least 99%, in particular along at least 99.5% of a length of the internal portion.

Said surface area may correspond to the average surface area along the length of the internal section.

Avoiding areas with a reduced cross-sectional area, such as constrictions, favors a low flow resistance in the fluid line.

In preferred embodiments, a width of the cross-sectional area along each direction in the cross-sectional area is not less than 3 cm, preferably not less than 4 cm, in particular not less than 4.5 cm. In particular, the cross-sectional area can be circular and the width can correspond to the diameter of the circular cross-sectional area.

The avoidance of lateral constrictions favors a low flow resistance of the fluid line. In particular, a circular cross-sectional area maximizes the surface area of the cross-sectional area and minimizes the flow resistance for a given perimeter and thus for a given amount of material of the fluid conduit.

In preferred embodiments, a width or a diameter of the cross-sectional area of the cavity does not exceed 20 cm, preferably not 18 cm, in particular not 16 cm.

With appropriate dimensions, the fluid line can be arranged in the neutral zone of the solid.

In preferred embodiments, a length of the internal section in relation to a surface area of the temperature control surface is at most 3 m/m ² , in particular at most 2.6 m/m ² or at most 2.2 m/m ² .

A small length of the internal section further improves the flow resistance of the fluid line. In addition, the reduced length of the fluid line can reduce costs of the fluid line, both with regard to material costs and with regard to laying costs. In particular, in embodiments with a stainless steel corrugated pipe, the costs can be kept similar to those that occur with conventional ceiling heaters with fluid lines made of plastic. The cost can be increased by using standardized stainless steel corrugated pipe, which is produced in large quantities and inexpensively for applications in the heating and sanitary sector, for example, can be further reduced.

In preferred embodiments, the total volume of the cavity in a detached house is at least 600 l, preferably at least 800 l, preferably at least 1000 l, preferably at least 1200 l, in particular at least 1400 l.

Due to the large diameter of the cavity, a large total volume is achieved even with a short length of the fluid line. The large total volume can provide a heat store, which means that a central heat store (buffer store) in the building with the ceiling temperature control system can be dispensed with.

The fluid line may include a plurality of parallel sections. A distance between adjacent parallel sections can be at least 0.3 m, preferably at least 0.35 m, preferably at least 0.4 m, in particular at least 0.45 m. A distance between adjacent parallel sections can be at most 2 m, preferably at most 1.5 m, in particular at most 1 m.

The fluid can be a liquid, which is preferably formed by water or contains water.

The internal portion may be configured to leak-free receive the fluid within the cavity.

The internal section may have an inlet and an outlet configured to allow fluid flow of the fluid through the internal section.

A surface area of the temperature control surface can be at least 1 m ² , preferably at least 3 m ² .

The tempering surface can be thermally coupled to the solid, in particular through thermal conductivity of the solid.

The ceiling temperature control system can have or form a ceiling heating system and/or a ceiling cooling system and the temperature control surface can be a heating surface and/or a cooling surface.

The solid can have an opposite side, which faces away from the tempering surface, preferably opposite and aligned substantially parallel to the tempering surface, is arranged on the solid, with the internal section being arranged closer to the tempering surface than to the opposite side.

The solid may be configured to provide a ceiling portion of a room. The temperature control surface can be set up to provide at least a section of a ceiling surface of a room.

The ceiling temperature control system can be included in a transportable prefabricated component for forming a ceiling. Prefabricated components can be manufactured in large numbers and therefore inexpensively in series production in concrete plants.

Alternatively, the ceiling thermal management system may be included in a ceiling of a building, where the solid is concrete that is cast at the building site to form the ceiling.

Casting concrete at the building site allows flexibility in designing the shape of the ceiling and building.

The ceiling temperature control system can also have a controllable convection device that is set up for thermal coupling between the temperature control surface and a first air volume by means of an air flow.

The controllable convection device can provide controllable (dynamic) temperature control, ie controllable (dynamic) heating and/or controllable (dynamic) cooling. This is in contrast to conventional, static temperature control, i.e. static heating and/or static cooling, in which the heating and/or cooling capacity of the temperature control surface is essentially determined by a temperature difference between the temperature of the temperature control surface and the temperature of a room becomes. Controlling the temperature of the temperature control surface and thus the heating and/or cooling capacity of the static temperature control is usually slow, for example with a control time of one or more hours. In contrast to this, the control of the controllable convection device and thus the heating and/or cooling capacity of the dynamic temperature control is significantly faster, for example with a control time of the order of seconds or minutes. The control time can refer to a time interval from setting a target value to reaching an actual value that essentially corresponds to the target value. Due to the reduced control time, the controllability of the ceiling temperature control system is improved. The controllable convection device thus opens up the possibility of removing heat or cold stored in the solid quickly and flexibly as required and making it available for heating or cooling.

With proper installation of the ceiling temperature control system in a building, the first air volume can include room air, in particular a room running in a lower region of a room.

The air in the room is typically cooler in the lower part of a room. A temperature difference between the temperature control surface and the air that is in contact with the temperature control surface is increased during heating by an air flow of the cooler room air to the temperature control surface. As a result, an increased heating capacity of the ceiling temperature control system, and in particular of the controllable (dynamic) heating, can be achieved.

The controllable convection device can be set up to generate the air flow with a movement component towards the temperature control surface.

A flow of the air flow along the temperature control surface can be achieved by the movement component towards the temperature control surface. The flow along the temperature control surface increases the interaction between the air flow and the temperature control surface and improves the transfer of heat or cold from the solid to the air flow, and thus the heating or cooling capacity. For example, the flow along the tempering surface can be achieved by utilizing the Coanda effect.

The controllable convection device can have an air flow generator and an air flow guide. The air flow generator can be set up to generate and/or intensify the air flow. The air flow guide can be set up to define a direction of at least part of the air flow in order to generate the movement component towards the temperature control surface.

The airflow guide may have a substantially vertical section.

The substantially vertical section can promote the capture of room air from the lower area and a transport of the room air from the lower area to the upper area of the room.

The air flow generator may include a fan or be a fan.

The thermal coupling by means of the air flow can be set up to generate a heat transfer between the temperature control surface and the air flow, the heat transfer in relation to a surface area of the temperature control surface being at least 8 W/m ² , preferably at least 10 W/m ² , preferably at least 12 W/m ² , in particular at least 14 W/m ² .

The temperature control surface according to the disclosure can, for example in combination with conventional fans, enable a high dynamic heat transfer. In particular, the high dynamic heat transfer together with the static heating can cover the heating and/or cooling requirements of a building such as a modern passive house or low-energy house. The ceiling temperature control system thus provides controllable, dynamic heating or cooling with sufficient power to be able to dispense with further controllable or controllable heating or cooling devices, and the controllability of the ceiling temperature control system itself is improved. In particular, the improved controllability is realized using components for heating and/or cooling that are present in the solid, with additional components such as conventional fans and/or airflow guides being available at low cost. The controllable (dynamic) heating and/or cooling can also improve spatial controllability by having a plurality of controllable (dynamic) heating and/or cooling systems, for example with a plurality of airflow ducts and fans, in different areas of a building, for example in different rooms , to be ordered. The ceiling temperature control system and in particular the controllable, dynamic temperature control can be operated with a low flow temperature and/or with a low surface temperature of the temperature control surface, which improves the energy efficiency of the ceiling temperature control system, in particular compared to conventional systems that have a use supplementary heating with a high flow temperature and/or surface temperature, e.g. a radiator. The low flow temperature can improve the seasonal performance of a heat pump that provides the flow temperature. The low surface temperature can also improve the comfort of the ceiling heating-cooling system and/or a room with the ceiling heating-cooling system. Since the heat or cold for the controllable temperature control is taken from the solid material, the controllable temperature control also enables heat or cold to be drawn off flexibly, quickly and easily in terms of time, for example from a heat pump or from a solar thermal system at times of favorable conditions and /or is provided with a high energy efficiency of the heat pump or the solar thermal system. This further improves the energy efficiency of the ceiling temperature control system.

The ceiling temperature control system can also include a heat pump that is set up to provide heat or cold. The ceiling temperature control system can be set up to introduce the provided heat or cold into the solid by means of the fluid line.

The ceiling temperature control system can improve the efficiency of the heat pump, in particular an air-water heat pump, for example to an annual performance factor of at least 4, preferably to an annual performance factor of at least 4.5.

A temperature difference between a flow of the heat pump and a return of the heat pump can be at most 5 K, preferably at most 4 K, in particular at most 3 K.

The ceiling temperature control system can be set up to introduce a large part of the heat provided into the solid during the day by means of the fluid line. Alternatively or additionally, the ceiling temperature control system can be set up to bring a large part of the cold provided into the solid during a night time by means of the fluid line. The majority can correspond to a proportion of at least 60%, preferably at least 65%, preferably at least 70%, preferably at least 75%, in particular at least 80% of the heat and/or cold provided.

Through the combination of heat pump and heat or cold storage in the solid, heat or cold can advantageously be produced by the heat pump at times of favorable conditions and transferred to the solid. As a result, a thermal load shift and/or improved efficiency of the ceiling temperature control system can be achieved.

The ceiling temperature control system can also include a photovoltaic device that has a peak power that corresponds at least to a power consumption of the heat pump during operation. The photovoltaic device can be electrically coupled to the heat pump in order to provide electrical power for the operation of the heat pump.

The electrical output can cover at least half of the power consumption of the heat pump.

In addition or as an alternative to the thermal load shift, an electrical load shift can be achieved by operating the heat pump at times when there is good availability of electrical power for operating the heat pump and storing the heat or cold generated in this way in the solid. In particular, the electrical power can be provided by the photovoltaic system. The ceiling temperature control system can thus enable the best possible use of the photovoltaic device, for example with regard to the energy efficiency of the overall system.

The ceiling temperature control system can also include a solar thermal system that is set up to provide generated heat. The ceiling temperature control system can be set up to introduce the heat generated into the solid by means of the fluid line. The ceiling temperature control system can be set up to transfer a large part of the generated heat into the solid during a daytime using the fluid line bring in The majority can correspond to a proportion of at least 60%, preferably at least 65%, preferably at least 70%, preferably at least 75%, in particular at least 80% of the heat generated.

Similar to the combination of heat pump and photovoltaic system, the solar thermal system can effectively produce heat for storage in the solid during the day. Storage in the solid can allow the heat to be used for heating during the night.

The ceiling temperature control system can also have an air passage that is set up to control a flow rate of a passage air flow from a second air volume through the air passage to the temperature control surface.

According to the embodiment, the ceiling temperature control system advantageously utilizes the large heating and/or cooling capacity provided by the temperature control surface in order to control the temperature of a second volume of air, for example outside air, when it is admitted into a room. As a result, heat recovery, which can be associated with high acquisition costs, can be dispensed with. In particular, the ceiling temperature control system uses a heating and/or cooling capacity using heat or cold stored in the solid, which can be provided extremely energy-efficiently at favorable times, for example by the photovoltaic system mentioned, a heat pump and/or solar thermal system . The air outlet can also be operated with a lower power consumption than heat recovery, which further improves the energy efficiency of the ceiling temperature control system. In addition, the outlet air flow can be quickly increased or reduced by means of the air outlet, which improves the controllability of the ceiling temperature control system.

The second volume of air may contain outside air related to a building when the ceiling temperature control system is properly installed in or on the building.

The air passage can be set up to add at least part of the passage air flow to the air flow.

In corresponding embodiments, a separate airflow guide for the pass-through airflow can be dispensed with by using the airflow guide for the airflow. As a result, the system costs can be reduced.

The air passage can be a controllable air passage, in particular with at least one fan which is set up to control and/or generate and/or intensify the passage air flow.

Appropriate embodiments may allow rapid control of pass-through airflow.

In preferred embodiments, the fluid line is a loop of a heating-coolant system of a building, and a total length of the fluid line is not more than 300 m, preferably not more than 250 m, preferably not more than 200 m, in particular not more than 170 m or no larger than 140 m.

A small overall length of the fluid line can further reduce the flow resistance and cost of the fluid line.

The loop or majority of loops may be unregulated in terms of flow or flow resistance of the loop or majority of loops.

In the present disclosure, the majority of loops is understood to mean at least half, preferably at least 2/3 and more preferably ¾ of the loops present.

A control or regulation of one or all loops, for example with regard to flow, flow resistance or flow temperature, can be dispensed with in order to maximize the transfer of heat or cold from the fluid line to the solid and to further reduce costs.

A temperature of the temperature control surface along the temperature control surface can vary by a maximum of 5 K during operation of the system, preferably by a maximum of 4 K, in particular by a maximum of 3 K or by a maximum of 2 K. The temperature control surface can extend over a number of rooms in a building. The temperature control surface can extend over all rooms in the building that correspond to a loop of a heating-cooling system with the ceiling temperature control system.

The disclosure can relate to a method for controlling the temperature of at least one room in a building with a ceiling temperature control system as described above. The solid may form a ceiling portion of the room. The surface can form a portion of a ceiling surface of the room. The method may include creating a flow of fluid through the cavity at a flow temperature different than a temperature of the solid to transfer stored heat or cold from the fluid to the solid. The method can further include a static transfer of part of the stored heat or the stored cold from the solid to the space by means of the tempering surface. The process can continue to be dynamic transferring a portion of the stored heat or cold from the solid to the space by means of the controllable convection device.

The static transfer may include thermal transfer by radiation.

Dynamic transfer can exceed static transfer in amount.

Dynamically transferring may include creating an airflow having a component of movement toward the ceiling portion, the airflow comprising room air from a lower region of the room.

A corresponding controllable or dynamic temperature control can make a significant contribution to a controllable ceiling temperature control system.

The method may further include generating a pass-through airflow of outside air relative to the building through an air passage to the tempering surface to heat or cool the pass-through airflow using the stored heat or cold.

The method can also include heating the fluid with a heat pump or with a solar thermal system and/or cooling the fluid with a heat pump.

The method may further include generating electrical power using a photovoltaic device mounted on the building or in a vicinity of the building and electrically coupled to the heat pump. The method can also include providing a power consumption of the heat pump from the electrical power.

Tempering may be heating, with most of the stored heat being transferred from the fluid to the solid during the day and most of the dynamic transfer occurring at night, the majority accounting for at least 60%, preferably at least 65% %, preferably at least 70%, preferably at least 75%, especially at least 80% of the heat transferred.

Tempering can be cooling, with the stored cold being transferred from the fluid to the solid for the most part at night, and much of the dynamic transfer occurring at day time, with the majority accounting for at least 60%, preferably at least 65% %, preferably at least 70%, preferably at least 75%, especially at least 80% of the transmitted cold.

According to a further aspect, the disclosure relates to a method for producing a ceiling temperature control system for at least one room in a building. The method includes laying a fluid line along a horizontal surface disposed above a footprint of the building, pouring a liquid build material around the fluid line, and curing the liquid build material into a solid such that the solid forms a portion of a ceiling surface of the space forms, and a surface of the solid forms a portion of a ceiling surface of the room and a tempering surface. Alternatively, it is also possible for a cover layer to be thermally coupled to the surface of the solid, which in turn has a surface that forms the temperature control surface. Note that the "surface" is facing down. The curing is carried out in such a way that an internal section of the fluid line is formed in the solid, which is thermally coupled to the solid and has a cavity, the volume of the cavity being at least 2l/m ² in relation to a surface area of the tempering surface.

The method can further include thermal coupling between the temperature control surface and a first air volume by means of an air flow and a controllable convection device.

The method can also include setting up a heat pump, so that the heat pump provides heat or cold, with the ceiling temperature control system being set up to introduce the heat or cold into the solid by means of the fluid line.

The method can further include electrically coupling a photovoltaic device to the heat pump in order to provide electrical power for the heat pump, the photovoltaic device having a peak power that corresponds at least to a power consumption of the heat pump during operation.

The method may further include setting up an air passage to provide a controllable passage air flow from a second volume of air through the air passage to the tempering surface. The second volume of air may include outside air relative to the building.

The method for producing the ceiling temperature control system can have one or all of the features previously described in connection with the ceiling temperature control system.

BRIEF DESCRIPTION OF ILLUSTRATIONS

Figure 1A

shows a ceiling section according to the prior art in a perspective view;

Figure 1B

shows the ceiling section according to the prior art in a cross-sectional view;

Figure 2A

shows a ceiling temperature control system according to an embodiment in a perspective view;

Figure 2B

shows the ceiling temperature control system Figure 2A in a cross-sectional view;

Figure 3

shows a ceiling temperature control system according to a further embodiment;

Figure 4A

shows a ceiling temperature control system according to a further embodiment;

Figure 4B

shows a ceiling temperature control system according to a further embodiment; and

Figure 5

shows a ceiling temperature control system according to a further embodiment.

DETAILED DESCRIPTION OF THE INVENTION

The invention is described in more detail below with reference to the examples and the attached figures.

Figures 1A and 1B show a ceiling section 100 of a ceiling temperature control system according to the prior art in perspective and in a cross-sectional view, respectively. The deck portion 100 includes a solid 102, which is typically concrete. Alternatively, it can be a dry building material such as plasterboard. A surface 102a of the solid 102 forms a portion of a ceiling surface of a room in a building. The surface 102a is also set up as a heating/cooling surface (temperature control surface) 102a for a ceiling heating/cooling system (ceiling temperature control system). For this purpose, the surface 102a is supplied with heat or cold from a heating or cooling medium in the form of a fluid which is fed into a fluid line 104 . From the fluid line 104, the heat or cold is transported through the solid 102 to the surface 102a.

The injection of cold fluid, for example compared to the room temperature below the ceiling section 100, can be used to cool the space; the feeding of warm fluid for heating the room. Typically, the ceiling section 100 is suitable for both heating and cooling, but in some cases there is no possibility of supplying either a warm or a cold fluid. Unless otherwise stated, the following disclosure relates not only to the prior art but also to the ceiling temperature control system according to the disclosure, both to heating and to cooling.

The fluid line 104 is usually made of plastic, but can also be made of copper, the latter generating additional costs, both due to higher material costs and due to a more complex routing of the fluid line 104 made of copper, for example when bending the curved sections or creating connections between Sections of the fluid line 104. A laying distance D between parallel sections of the fluid line 104 is 15 to 35 cm in the ceiling section 100 according to the prior art. The fluid line 104 has an inner diameter in the range of 15 to 25 mm. With a typical circular cross-sectional area of the fluid line 104, a typical inner diameter of 16 mm corresponds to a surface area of the cross-sectional area of approximately 200 mm ² . With a normal laying distance D of 20 cm, and neglecting the curved areas of the fluid line 104, the length of the parallel sections of the fluid line 104 in relation to a surface area of the surface 102a is 5 m/m ² . Thus, the volume of the fluid line 104 in relation to the surface area of the surface 102a is typically 1 l/m ² .

Figures 2A and 2B show a ceiling portion 200 of a ceiling thermal management system according to the present disclosure in perspective and cross-sectional views, respectively. The ceiling section 200 is similar to that of Figure 1A and the Figure 1B , but has a number of improvements. In particular, it has a fluid line 204 with an internal portion 204 disposed in a solid 202 .

The inner diameter of the fluid line 204 is 50 mm in the exemplary embodiment shown and is realized for the fluid line 204 by using a stainless steel corrugated pipe with standard dimensions corresponding to DN50.

The inner diameter of 50 mm exceeds typical inner diameters according to the prior art by a factor of about 3, so that a surface area of the cross-sectional area of the fluid line 204 is increased by a factor of about 9. A significantly greater reduction in Flow resistance of the fluid line 204 is achieved since flow resistances of lines depend more than linearly on the inner diameter and cross-sectional area.

The laying distance D of the embodiment of Figure 2A and Figure 2B is 50 cm. The exemplary embodiment thus achieves a reduced length of the fluid line 204. The length of the parallel sections of the fluid line 204 is only 2 m/m ² in relation to a surface area of the surface 202a, neglecting the curved regions of the fluid line 204. The reduced length of the fluid line 204 further reduces flow resistance and may also reduce the cost of the fluid line 204, both in terms of material costs and wiring costs.

In order to maintain the reduced flow resistance, bottlenecks, areas of reduced cross-sectional area, reduced inner diameter and/or a reduced width of the fluid line 204 along a direction along the cross-sectional area, for example by a lateral deformation, are to be avoided. Correspondingly, the fluid line 204 of the exemplary embodiment is designed with a circular cross-sectional area and with a constant inside diameter of 50 mm along the longitudinal extension of the fluid line 204 .

Due to the larger surface area of the cross-sectional area, the internal volume of the fluid line 204 is approximately twice as large as in the prior art, despite the larger laying distance D. When filled with a fluid, the larger internal volume can provide a heat accumulator that can offer sufficient capacity to be able to do without an additional, central liquid heat accumulator (buffer accumulator), as is common, for example, in the prior art in connection with a solar thermal system.

The choice of steel for the material of the fluid line 204 according to the exemplary embodiment leads to an improvement in the thermal conductivity of the fluid line 204 compared to previously known fluid lines 104 made of plastic.

The material costs for the fluid line 204 made of steel can be similar overall to the material costs for the fluid line 104 made of plastic, in particular due to the reduced length of the fluid line 204 and due to the use of stainless steel corrugated pipe with standard dimensions, for example according to DN50, which due to its large-scale manufacture, for example for heating and plumbing, is available at low cost.

Compared to a prior art copper fluid line 104, the steel fluid line 204 offers cost advantages, both in terms of material costs and routing. In particular, the use of stainless steel corrugated pipe enables a tool-free, flexible and time-efficient installation. There are also connections between different sections the fluid line 204 made of stainless steel corrugated pipe can also be produced flexibly, time- and cost-efficiently using available flange systems.

In the vertical direction, the fluid line 204 is arranged between the height 206a of a lower reinforcement and the height 206b of an upper reinforcement. Tensile and compressive stresses, which can arise due to a mechanical load on the ceiling section 200 during use, occur most strongly in the area of the height 206a of the lower reinforcement and/or the height 206b of the upper reinforcement, and are emitted there by the reinforcements, for example steel, recorded. Tensile and compressive stresses are low in the area between the lower rebar height 206a and the upper rebar height 206b, and the corresponding area is referred to as the neutral zone. By arranging the fluid line 204 in the neutral zone, an influence of the fluid line 204 on the mechanical stability of the cover section 200 can be kept low.

The ceiling element 200 can be an area of a prefabricated element, in particular for prefabricated construction, which can be produced inexpensively in large numbers in a concrete plant using conventional methods.

However, the ceiling element 200 can also be an area of a ceiling that is produced at the site of the building to be erected. For this purpose, corrugated stainless steel pipe is first laid along a horizontal surface that corresponds to the ceiling of the building to be erected that is to be temperature-controlled. Laying is done with parallel sections and curved sections, as exemplified in Figure 2A shown. The stainless steel corrugated pipe is then cast in a liquid building material, typically liquid concrete. The liquid building material is hardened to form the solid 202, so that a ceiling element 200 as in Figure 2A and Figure 2B shown arises in which the stainless steel corrugated pipe forms the fluid line 204. The potting creates a large and direct contact area between the fluid line 204 and the solid 202. Optionally, the surface of the corrugated stainless steel tube can be treated or coated with a thermal contact medium with a high thermal conductivity before potting to improve the thermal contact. When laying the corrugated stainless steel pipe on site, the advantages of tool-free, flexible and time-efficient laying come into their own.

The improvements in the cover section 200 compared to the prior art lead, individually but in particular synergetically in combination, to an improved thermal coupling between the fluid or fluid line 204 and the solid 202. The improvements in the thermal coupling between the fluid or fluid line 204 and Solid 202 becomes a major advantage of ceiling heating or cooling, namely a large heating or cooling capacity due to the large exposed surface area of the Surface 202a used better even with low flow temperature. For a temperature difference of 2°C between surface 202a and room temperature, the heating or cooling capacity is typically about 12 W/m ² . This (static) heating or cooling capacity can provide a significant part of the heating or cooling requirement of a building, which is typically 10 W/m ² for a passive house and typically 20 to 30 W/m ² for a low-energy house. Due to the improved coupling between fluid and solid 202, most of the heat or cold of the fluid can be transferred to the solid 202, so that the temperature difference of 2° C. can already be achieved with a low flow temperature of the fluid fed into the fluid line 204, and even then , when the temperature difference between the flow temperature and the temperature of the solid 202 is low.

In addition, the improved transfer of the heat or cold of the fluid to the solid 202 favors the use of the solid 202 as a heat or cold accumulator. A large part of the heat or cold is transferred and thus made usable, and the entire heat storage capacity of the blanket, which according to the embodiment is 130 Wh/Km ² , is available for loading with the heat or the cold. Thus, heat or cold that is efficiently generated at times of favorable conditions can be effectively stored in the solid 202 and available for use at times of increased demand.

Alternatively or additionally, the heat or cold can be generated at times of high electrical power availability and stored in the ceiling, enabling power load shifting, locally or in connection with a building-wide power grid.

Thus, the ceiling temperature control system allows additional use of the solid 202, which is already present in the building to take on structural and mechanical tasks, for storing heat or cold. A corresponding additional use is also referred to as concrete core activation. The stronger thermal coupling between the fluid or fluid line 204 and the solid 202 thus leads to an improvement in the activation of the concrete core.

Concrete core activation of screed in connection with underfloor heating is implemented in various embodiments in the prior art. However, a concrete core activation of a ceiling in connection with a ceiling temperature control system, for example for a residential building or a family house, creates difficulties. In particular, the greater temporal and spatial inertia of the ceiling has so far led to difficulties with regard to a sufficiently fast and spatially differentiated controllability.

Figure 3 shows a ceiling temperature control system according to a further embodiment, which comprises a ceiling section 200, which corresponds to the ceiling section 200 of FIG Figure 2A and the Figure 2B may resemble. In particular, the ceiling section 200 comprises a solid 202 with a surface 202a for heating or cooling a space 300, and a fluid line 204 for introducing heat or cold into the solid 202 by means of a fluid. The ceiling temperature control system Figure 3 also includes a controllable convection device 302 for generating a flow of air 304 from a lower region 306 of the space 300, which is further away from the ceiling section 200, to an upper region 308, which is closer to the ceiling section 200 and, in the embodiment shown, is adjacent to it .

In order to implement the controllable convection device 302 , a flow channel is arranged in a wall 316 of the room 300 as an air flow guide 310 . The flow channel of the air flow guide 310 is a channel-like structure made of metal or plastic with a cross-sectional area of approximately 110 mm×54 mm. The air flow guide 310 is thus sufficiently dimensioned to guide the air flow 304 with a low flow resistance. According to the exemplary embodiment, the air flow guide 310 is arranged in a wall 316, for example in a wall 316 inside the building, which does not provide any load-bearing function. Alternatively, the air flow guide 310 can be arranged on the wall 316 . While placement on the wall 316 simplifies installation, placement in the wall 316 minimizes the space required for the airflow guide 310; in addition, the visual impairment is less than in the case of an arrangement on the wall.

Fans 312 are accommodated in the air flow guide 310 as air flow generators 312 , by means of which the air flow 304 can be controlled with regard to its flow by means of the speed of the fans 312 . A control device 314 is available for this purpose. The control device 314 is set up to control the fans 312 with regard to their speed and to automatically regulate the speed in order to achieve a target room temperature.

The air flow 304 first takes in cold air from the lower area 306 of the room 300 and is then guided vertically upwards to the upper area 308 of the room 300 by the air flow guide 310 . In the upper area 308 near the ceiling, the air flow guide 310 deflects the air flow 304 in such a way that a movement component of the air flow 304 arises parallel to the temperature control surface 202a. The air flow 304 with the cold air is thus guided along the temperature control surface 202a using the Coanda effect and is thereby temperature-controlled. The flow along the temperature control surface 202a achieves an effective exchange of heat between the air flow 304 and the temperature control surface 202a. By heating cold air from the lower area 306 of the room 300 is the temperature difference between the cold air and the temperature control surface 202a increases during heating, and the transfer of heat from the temperature control surface 202a to the air flow 304 is thus improved. In addition, the formation of a warm air cushion adjoining the temperature control surface 202a is avoided.

The controllable convection device 302 and the air flow 304 provide the ceiling temperature control system Figure 3 a controllable (dynamic) temperature, that is a controllable (dynamic) heating and / or controllable (dynamic) cooling ready. This is in contrast to static temperature control, i.e. static heating and/or static cooling, in which the heating and/or cooling capacity of the temperature control surface 202a for the room 300 is essentially determined by the temperature difference between the temperature of the temperature control surface 202a and the Temperature of the room 300 is determined.

As already in connection with the embodiment of Figure 2A and the Figure 2B described, with a temperature difference of 2° C. between the surface 202a and the temperature of the space 300, the heating and/or cooling capacity of the static temperature control is approximately 12 W/m ² in relation to the surface area of the surface 202a. The controllable convection device 302 with conventional fans 312 achieves a heating and/or cooling capacity of the dynamic (controllable) temperature control in relation to a surface area of the surface 202a of approximately 15 to 20 W/m ² . Thus, static temperature control and dynamic temperature control together can provide the heating or cooling demand of a building, such as a passive house or a low-energy house, with good controllability.

Figure 4A shows a ceiling temperature control system according to an embodiment with proper arrangement in a building 400. The building 400 is a single-family house. The ceiling temperature control system is similar to that of Figure 2A , the Figure 2B or the Figure 3 . In particular, the ceiling temperature control system has a ceiling section 200 with a solid 202 in which a fluid line 204 is arranged and whose surface 202a forms a ceiling surface for rooms 300 and provides a temperature control surface 202a. Although not shown, the ceiling temperature control system preferably includes a controllable convection device, similar to the convection device 302 of FIG Figure 3 . The ceiling temperature control system of the illustrated embodiment also has a heat pump 402 and a photovoltaic system 404 . Photovoltaic system 404 generates electrical power to operate heat pump 402.

The energy efficiency of the photovoltaic system 404 and the electrical power generated are greater during the daytime than during the nighttime. Also the efficiency of heating with the Heat pump 402 is larger during the day time when the outside temperature is higher than during the night time. Through the combination of the photovoltaic system 404, the heat pump 402 and/or the ceiling section 200, the ceiling temperature control system can thus achieve optimized energy efficiency when operating during the day when generating the electrical power, when heating with the heat pump 402 and when storing the heat in allow the solid 202 of the ceiling portion 200. In particular, the energy efficiencies of the individual elements work together synergistically to improve the energy efficiency of the ceiling temperature control system.

In embodiments without a photovoltaic system 404 on the building 400 (not shown), electrical power can be available plentifully or inexpensively during the day from a power grid into which electricity is fed by photovoltaic systems at other locations. Thus, an embodiment without local power generation can also enable the optimized energy efficiency when generating the electrical power, when heating with the heat pump 402 and when storing the heat in the solid matter 202 of the ceiling section 200 .

Additionally, in embodiments using a solar thermal system instead of the heat pump 402 and the photovoltaic system 404 (not shown), the combination of the solar thermal system and ceiling section 200 can efficiently generate (via the solar thermal system) and store (in the solid 202) heat during the day make possible.

The heat stored during the day with the optimized energy efficiency can be extracted at times of increased demand. The removal can using static and / or controllable temperature control, such as in connection with Figure 3 described, take place. In an analogous manner, the ceiling temperature control system can also be used for cooling by operating the heat pump 402, for example powered by electricity from a power grid, during the nighttime in order to bring cold into the solid matter 202 of the ceiling section 200, which during the day time is removed. In both heating and cooling, the times of increased demand are typically complementary to the times of favorable conditions for the generation of heat or cold, so that generating heat or cold at times of increased demand would reduce the efficiency of the ceiling temperature control system . The controllable temperature control by means of the convection device 302 thus further improves the energy efficiency of the ceiling temperature control system in conjunction with storage in the solid 202 and with the combination of heat pump 402 and photovoltaic system 404 or with the solar thermal system.

The ceiling temperature control system Figure 4A comprises a single loop (loop) 406 of a heating-cooling-agent system. As a result, devices for individual regulation or control of loops in the heating-cooling system can be saved, which reduces the costs of the ceiling temperature control system. While in conventional systems the transfer of heat from the fluid line into the solid is typically controlled or regulated, the transfer of heat or cold from the fluid line 204 into the solid 202 is always increased or maximized in the ceiling temperature control system according to the disclosure. in particular due to the minimized flow resistance of the fluid line 204 and the fluid flow maximized as a result. The storage of heat or cold in the solid matter 202 of the cover section 200 is thus improved by dispensing with individual regulation or control.

The building 400 can have several loops 406 (not shown), although the number of loops 406 for a single-family house should be kept low in order to save costs. Depending on the size of the detached house, the ceiling temperature control system can enable the detached house to be heated or cooled with one to at most four loops 406 . Each of the one to four loops 406 can be configured as an unregulated loop 406 to save cost and maximize heat or cold storage. In corresponding embodiments, the ceiling temperature control system according to the invention provides sufficient heating or cooling capacity and good controllability.

Figure 4B 12 shows a ceiling temperature control system according to an embodiment when properly arranged in a building 408. The building 408 can be, for example, a residential building with a plurality of apartments or an office building. The ceiling temperature control system can match that of Figure 4A , the Figure 3 , the Figure 2A or the Figure 2B resemble In particular, although not shown, the ceiling temperature control system can include a photovoltaic system 404, a solar thermal system or a controllable convection device 302 as previously described.

In addition to ceiling sections 200 of rooms 300 and heat pumps 402, for example air-to-water heat pumps 402, the ceiling temperature control system includes several loops 406a, 406b of a heating-cooling system. The multiple loops 406a, 406b can support individual regulation of the heating and/or cooling capacity for areas of the building 408 and thus individual regulation of the static heating of the corresponding areas can be supported. As shown, the heating-cooling system comprises two loops 406a, 406b. However, the heating-cooling system can also provide additional loops 406a, 406b (not shown), eg depending on the number of floors of the building 408, the number of apartments of a residential building or according to a respective one Use of rooms or areas of building 408, for example for computer rooms or for offices. The ceiling temperature control system of the disclosure is compatible with a corresponding large-scale division, which can further improve the energy efficiency of the ceiling temperature control system in individual cases. This can be the case in particular when the use of the rooms or areas differs greatly, for example when offices need to be heated in winter, while computer rooms need little or no heating.

Figure 5 shows a ceiling temperature control system according to a further embodiment. The ceiling temperature control system can match that of Figure 3 resemble The ceiling temperature control system Figure 5 also has two air passages 500a, 500b serving as outside air passages 500a, 500b for providing passage airflows 502a, 502b of outside air. The air passage 500a is a tilted position of a window 504. The air passage 500b, on the other hand, is an air duct in which the passage air flow 502b is controlled via the size of the passage opening of the air duct and/or by a speed of a fan (not shown) arranged in the air duct. is controllable. The air passages 500a, 500b let outside air into the room 300 of the building 400, 408 in such a way that the passage air flow 502a, 502b is directed to the tempering surface 202a and there similar to that associated with FIG Figure 3 described air flow 304 is tempered. While the air passage 500a directs the passage air flow 502a directly to the tempering surface 202a, the passage air flow 502b uses a guiding device. In the exemplary embodiment shown, the throughflow of air 502b is admixed with the airflow 304 and directed towards the temperature control surface 202a by means of the airflow guide 310 . The dual use of the air flow guide 310 can reduce space requirements and costs of the ceiling temperature control system. However, a flow channel for the pass-through air flow 502b that is separate from the air flow duct 310 can also be provided. The ceiling temperature control system figure 5 12 has air passages 500a, 500b in two different embodiments, but in other embodiments (not shown) only one of the air passages 500a, 500b can be formed.

The ceiling temperature control system according to the embodiment of Figure 5 advantageously utilizes the large heating and/or cooling capacity provided by the temperature control surface 202a in order to temperature control the outside air when it is admitted into the room 300 . As a result, heat recovery, which can be associated with high acquisition costs, can be dispensed with. In particular, the ceiling temperature control system uses a heating and/or cooling capacity to control the temperature of the outside air due to the heat or cold stored in the solid matter 202 of the ceiling section 200, which can be provided in an extremely energy-efficient manner at favorable times, for example by a photovoltaic system 404 and/or or by a heat pump 402 and/or by a Solar thermal system, as in connection with the embodiment of Figure 4A described. The air outlet 500a, 500b can also be operated with a lower power consumption than heat recovery, which further improves the energy efficiency of the ceiling temperature control system. In addition, the passage air flow 502a, 502b can be quickly increased or reduced by means of the air passage 500a, 500b, which improves the controllability of the ceiling temperature control system.

Claims (14)

Ceiling temperature control system (200) comprising: a solid (202), wherein a surface (202a) of the solid (202) provides a temperature control surface (202a) of the ceiling temperature control system (200); and a fluid line (204) having an internal portion (204) disposed within the solid (202); the internal portion (204) being thermally coupled to the solid (202) and having a cavity adapted to receive a fluid; characterized in that a volume of the cavity in relation to a surface area of the temperature control surface (202a) is at least 2l/m ² and the cavity has a cross-sectional area which comprises a surface area of at least 8 cm ² . Ceiling temperature control system (200) according to claim 1, wherein a heat capacity of the solid (202) in relation to a surface area of the temperature control surface (202a) is at least 70 Wh/(Km ² ), preferably at least 90 Wh/(Km ² ), in particular is at least 110 Wh/(Km ² ). Ceiling temperature control system (200) according to claim 1 or claim 2, wherein the internal section (204) consists at least partially of steel, preferably to a mass fraction of at least 60%, preferably at least 80%, in particular at least 95%, and is formed in particular by a corrugated steel pipe or includes such. Ceiling temperature control system (200) according to one of the preceding claims, wherein the surface area of the cross-sectional area of the cavity comprises at least 12 cm ² , preferably at least 16 cm ² , in particular at least 18 cm ² . Ceiling temperature control system (200) according to one of the preceding claims, wherein a length of the internal section (204) in relation to a surface area of the temperature control surface (202a) is at most 3 m/m ² , in particular at most 2.6 m/m ² or at most 2.2 m/m ² . The ceiling thermal management system of any preceding claim, further comprising a controllable convection device (302) operable for thermal coupling is set up between the tempering surface (202a) and a first air volume (306, 308) by means of an air flow (304). Ceiling temperature control system according to claim 6, wherein the first air volume (306, 308) when the ceiling temperature control system is properly installed in a building (400, 408) comprises room air, the controllable convection device (302) having an air flow generator (312 ) and an air flow guide (310), wherein the air flow generator (312) is set up to generate and/or intensify the air flow (304), and wherein the air flow guide (310) is set up to change a direction of at least part of the air flow (304) to establish a movement component towards the tempering surface (202a). Ceiling temperature control system according to one of the preceding claims, further comprising a heat pump (402) which is adapted to provide heat or cold, and wherein the ceiling temperature control system is adapted to the heat or cold provided by means of the fluid line (204) to introduce into the solid (202). Ceiling temperature control system according to claim 8, which is set up to introduce a large part of the heat provided during a day time by means of the fluid line (204) into the solid (202) and / or is set up to a large part of the cold provided during a night time to be introduced into the solid (202) by means of the fluid line (204); the majority corresponding to a proportion of at least 60%, preferably at least 65%, preferably at least 70%, preferably at least 75%, in particular at least 80% of the heat and/or cold provided. Ceiling temperature control system according to one of Claims 8 or 9, further comprising a photovoltaic device (404) which has a peak power which corresponds at least to a power consumption of the heat pump (402) during operation and wherein the photovoltaic device (404) is electrically connected to the heat pump (402) is coupled to provide electrical power for the operation of the heat pump (402). Ceiling temperature control system according to one of the preceding claims, further comprising an air passage (500a, 500b) which is set up to increase a flow rate of a passage air flow (502a, 502b) from a second air volume through the air passage to the temperature control surface (202a). control, with the second air volume with proper installation of the ceiling temperature control system in a building (400, 408) contains an outside air relative to the building (400, 408). Ceiling temperature control system according to claim 11 in combination with one of claims 6 or 7, wherein the air passage (500a, 500b) is set up to admix at least part of the passage air flow (502a, 502b) to the air flow (304). Method for temperature control of at least one room (300) of a building (400, 408) with a ceiling temperature control system according to claim 6 or claim 6 in combination with one of the preceding claims, wherein the solid (202) covers a ceiling section (200) of the room (300 ), the surface (202a) forming a portion of a ceiling surface of the room (300); and wherein the method comprises: creating a flow of fluid at a forward temperature different from a temperature of the solid (202) through the cavity to transfer stored heat or cold from the fluid to the solid (202); statically transferring part of the stored heat or the stored cold from the solid (202) to the space (300) by means of the tempering surface (202a); dynamically transferring a portion of the stored heat or cold from the solid (202) to the space (300) using the controllable convection device (302). Method for producing a ceiling temperature control system (200) for at least one room (300) of a building (400, 408), the method comprising the following: laying a fluid line (204) along a horizontal surface disposed above a footprint of the building (400, 408), pouring a liquid building material around the fluid line (204), curing the liquid building material into a solid (202) so that the solid (202) forms a ceiling portion of the space (300), and a surface (202a) of the solid (202) or a surface of one with the solid (202) thermally coupled Cover layer forms a section of a ceiling surface of the room (300) and a temperature control surface (202a), and so that an internal section (204) of the fluid line (204) in the solid (202) is formed, which is thermally coupled to the solid (202). and having a cavity; wherein a volume of the cavity in relation to a surface area of the temperature control surface (202a) is at least 2l/m ² .

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