EP0756138B1 - Flat element for heating or cooling - Google Patents

Flat element for heating or cooling Download PDF

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Publication number
EP0756138B1
EP0756138B1 EP96110258A EP96110258A EP0756138B1 EP 0756138 B1 EP0756138 B1 EP 0756138B1 EP 96110258 A EP96110258 A EP 96110258A EP 96110258 A EP96110258 A EP 96110258A EP 0756138 B1 EP0756138 B1 EP 0756138B1
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EP
European Patent Office
Prior art keywords
cooling
room
heating element
air
lining
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP96110258A
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German (de)
French (fr)
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EP0756138A2 (en
EP0756138A3 (en
Inventor
Karl August Dipl.Ing. Schmitt-Raiser.
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Wilhelmi Werke AG
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Wilhelmi Werke AG
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Publication of EP0756138A3 publication Critical patent/EP0756138A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels

Definitions

  • the invention relates to a flat cooling and heating element to form a covering for the ceiling of a Space and for integration into such a cladding according to the preamble of claim 1.
  • Such flat cooling and heating element is from DE-U-92 05 391 known.
  • cover panels made of ceiling panels put together the sound-absorbing properties to have. These can also be used as cooling and heating elements set up to air-condition a room serve or for both building physics tasks can be selected at the same time.
  • the temperature (cooling) of the room under the cladding is carried out using selectively provided Air outlet openings, if necessary via the entire cladding distributed by the heated or Cooled air flows are blown into the room using fans be the direction of each airflow is adjustable so that the air circulation in the room can be influenced.
  • the object of the invention is therefore to a cooling and heating element of the type mentioned in such a way that, on the one hand, an even, draft-free temperature control of the room is possible and Others have an individually adjustable temperature control to accomplish.
  • Such a cooling and heating element has the advantage that the first supply air flow generated by the fan over a large area and essentially vertically downwards the top layer, split into many partial flows, with because of the flow resistance in the porous cover layer greatly reduced flow velocity can flow out.
  • the cooling and heating element can because of the large Outflow surface now with a significantly higher temperature difference on the heat exchanger and thus with one higher efficiency - the system works extremely effectively with both heating as well as with cooling.
  • Those exiting the room Partial flows mix because of their low kinetic Energy quickly with the indoor air, so that drafts does not arise, and the diffusion of the partial flows into the Indoor air ensures rapid temperature compensation.
  • the forced flow through the porous cover layer allows in interaction with the radiation component that Surface of the top layer with relatively high temperature differences to act, d. H. already in or short the desired temperature compensation takes place under the top layer with the indoor air instead. It is synonymous with cheaper energy transport, the in turn justified the better efficiency.
  • the mechanical structure of the cooling and The heating element is relatively arbitrary. It can be as thin-walled sheet metal cassette or sandwich construction be formed from several layers.
  • the fan and the heat exchanger can be outside the Ceiling paneling or even provided outside the room his; it is also irrelevant in the context of the invention whether the air flow into the space between the cladding and ceiling of the room or separately is fed into a cooling and heating element.
  • a fan and / or a heat exchanger in its air flow provided the interior of the cooling and heating element are, for example, and at least the fan in one separate housing. This way the rest Components of the cladding are kept very simple.
  • the - thermally passive - ceiling tiles can trained in sandwich construction and from one Carrier plate and on this on one or both sides with a thin cover film glued to the carrier plate be composed.
  • the carrier plate is there preferably made of a foamed material.
  • the cover layer of the cooling and heating element according to the invention is best made of a fleece or fabric made of glass, synthetic and / or natural fibers; it is for them first supply air flow permeable.
  • that of Side of the room facing away from and facing the ceiling Cooling and heating element with one for this first supply air flow impermeable cover is best made of a fleece or fabric made of glass, synthetic and / or natural fibers; it is for them first supply air flow permeable.
  • the convection intensity is improved by at least one air outlet opening breaking through the cover layer for an undisturbed out of the fan and / or the heat exchanger conveyed into the room second supply air flow, which then also, for example across the fluidically separated space above the cladding by a cooling and heating element can be flowed through.
  • appropriate supply air channels may be provided so that both supply air flows the same functional element can escape, together or individually; the respective Arrangement can be according to local conditions to be selected. That way it is possible several, overlapping and penetrating To create air circulation in the room.
  • the heat exchanger with a Drip pan for condensate is provided; Such an arrangement is particularly effective in cooling mode good services.
  • the arrangement can be made in this way be that the condensate by evaporation in the room is dissipated, but it is also possible to use a corresponding one Lead the condensate line out of the room.
  • Cooling and heating element is provided that the fan separated from the room with a filter on the intake side is.
  • the filter can be attached visibly from the room be so that its pollution level is continuous can be checked without the filter should be expanded.
  • cooling and heating element too is still sound absorbing if it is Part of a so-called acoustic ceiling is that then absorbs sound throughout the area; the tempering Function of the cooling and heating element not affected by this.
  • the temperature control of the supply air flows can, however set out above, outside the cooling and heating element respectively; but it is convenient if the cooling and heating element a heater and / or cooling for the Supply air flows are provided so that a compact, itself containing all the necessary functional elements Unit is formed as a module for any customizable cladding serves and for example also thanks to its interior decor Can perform tasks.
  • the invention is further characterized by a Cladding for the ceiling of a room, at least in a partial area air-conditioning the room according to the invention Contains cooling and heating elements, otherwise but from appropriate, but without fan, heating / cooling and heat exchanger designed, purely clad Ceiling panels are assembled; in the Rule is sufficient because of the invention Cooling and heating elements intensive convective temperature control of space if only a small one Part of the ceiling cladding with such "active" thermal functional elements is equipped. Because of the usually regulated by the window Fresh air supply is beneficial if the air-conditioning Cooling and heating elements at least partially are provided near the windows.
  • a particularly intensive air circulation arises on if - in the area of the window and in the suction area of the fan - at least one air outlet is set so that a first partial flow is directed vertically downwards, which after impact is led up again on the floor, and if at least one other air outlet opening like this is set to be oblique, for example at 30 ° to the ceiling, down into the room directed second partial flow that forms in the area the window is also deflected upwards again becomes.
  • the partial flow on your Path through the room approximating its room temperature, before going straight to a person in the room meets.
  • the invention is based on the drawing an embodiment explained in more detail.
  • the only Figure shows an inventive cooling and heating element as part of a covering for a ceiling in the schematic longitudinal section and in its installed state.
  • the cooling and heating element Ke is designed as a sheet metal cassette, their after space Ra and a space Zr directed between the ceiling and the cladding Surfaces the inside of the cooling and heating element Ke limit.
  • the cooling and heating element Ke contains on it in the Drawing right side of a separate housing Gh, the is open to the inside.
  • a cylindrical fan Lü which from the Room Ra underneath the cladding the one there Sucking in air.
  • This can be pure indoor air Rl, it is outside air Al or a mixture of both; a passage Df for the outside air Al through a
  • the outer wall Aw of the room Ra can be used for this purpose if necessary be adjustable so that the admixture can be controlled by fresh outside air Al.
  • the supply air provided by the fan Lü flows through first a heat exchanger Wt, which is used for temperature control serves the supply air, which, if necessary thermostatically controlled, cooled to a preselected setpoint or is heated; the details are customary and not shown in the drawing.
  • the heat exchanger Wt and the fan does not have to be in the housing Gh or at all within the cooling and heating element Ke be provided; rather, the temperature control can also done by an externally provided heat exchanger, so that the required functional elements not installed in the cooling and heating element Ke Need to become.
  • the heat exchanger Wt is equipped with a drip pan Kw, the condensate generated during cooling picks up; it can be arranged that the relative evaporate small amounts of condensate, alternatively with the support of an additional heater.
  • the supply air cannot flow into the space Zr because of this from one adjacent to the space Zr, on the Surface of the cooling and heating element Ke applied Cover ad is prevented.
  • the supply air is fed into the supply air flows after it has been tempered Zs1 and Zs2 split.
  • the supply air flow Zs1 flat with a relatively high pressure loss from the cover layer Ds of the cooling and heating element Ke in the room Ra
  • the supply air flow Zs2 is over an air outlet opening Lö in the room Ra with little Pressure loss directed.
  • the supply air flow Zs2 already has before passing through the air outlet opening Lö experience intensive temperature compensation, conditionally through the room air surrounding the entire element Ke.
  • the air outlet opening Lö is designed that the supply air flow Zs2 can exit directed. It has proven to be particularly advantageous when a first partial flow Ts1 vertical and a further partial flow Ts2 is directed obliquely downwards, this one below 30 ° to 45 ° variably adjustable to the level of Cladding.
  • the arrangement of the cooling and heating elements Ke nearby a window Fe has the advantage that a heat or Cooling load of people in the room Ra can be avoided.
  • the outside air Al becomes direct and low-loss sucked in by the fan Lü.
  • the air outlet opening in the heating and cooling elements can have another air outlet La for generating a directional flow be provided, which is advantageously below the window is arranged.
  • This air outlet La creates a directional flow, through which the room climate can be influenced in the desired sense is.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Resistance Heating (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Laminated Bodies (AREA)

Abstract

The cooling and heating element (Ke) is closed off to the room by a porous ceiling layer (Ds) which can be passed by a first input air flow (Zs1) directed into the room (Ra) and divided into a number of part flows. The ceiling layer may be of the micro-porous type. A fan (La) and/or in its air flow a heat exchanger (Wt) may be provided in the interior (In) of the cooling and heating element, pref. at least, in a separate housing (Gh). The ceiling layer may comprise a fleece or weave of glass, plastic or natural fibres. At least one air outlet aperture (Lo) penetrating the ceiling layer may be provided for an undisturbed second input air flow fed into the room from the fan and/or the heat exchanger.

Description

Die Erfindung betrifft ein flächiges Kühl- und Heizelement zur Ausbildung einer Verkleidung für die Decke eines Raumes und zur Integration in eine derartige Verkleidung nach dem Oberbegriff des Anspruchs 1.Ein derartiges flächiges Kühl- und Heizelement ist aus der DE-U-92 05 391 bekannt.The invention relates to a flat cooling and heating element to form a covering for the ceiling of a Space and for integration into such a cladding according to the preamble of claim 1. Such flat cooling and heating element is from DE-U-92 05 391 known.

Bekannt ist es auch, Decken-Verkleidungen aus Deckenplatten zusammenzusetzen, die schallschluckende Eigenschaften haben. Diese können auch, als Kühl- und Heizelement eingerichtet, zur Klimatisierung eines Raumes dienen oder für beide bauphysikalischen Aufgaben gleichzeitig ausgewählt werden.It is also known to cover panels made of ceiling panels put together the sound-absorbing properties to have. These can also be used as cooling and heating elements set up to air-condition a room serve or for both building physics tasks can be selected at the same time.

Zu diesem Zweck befinden sich in der Regel oberhalb der Verkleidung entsprechende Wärmetauscher, von denen die Verkleidung großflächig temperiert und durch Wärmestrahlung und Konvektion das Raumklima darunter beeinflußt wird. Allerdings erfordert eine solche Anordnung große Flächenanteile, um, insbesondere bei der Kühlung, mit kleinen Temperaturdifferenzen arbeiten zu können, damit keine Taupunktunterschreitung erfolgt. In vielen Fällen erfolgt die Temperierung (Kühlung) des Raumes unter der Verkleidung mittels punktuell vorgesehener Luftaustrittsöffnungen, gegebenenfalls über die gesamte Verkleidung verteilt, durch die beheizte oder gekühlte Luftströme mittels Lüftern in den Raum eingeblasen werden, wobei die Richtung des jeweiligen Luftstromes einstellbar ist, so daß die Luftzirkulation in dem Raum beeinflußt werden kann. Durch eine relativ hohe Austrittsgeschwindigkeit aus den Luftaustrittsöffnungen wird hierbei eine wünschenswert schnelle Vermischung der Zuluft mit der Raumluft erreicht; es besteht jedoch die Gefahr von Zugluft. Die bloße Strahlungsenergie der Deckenplatten der Verkleidung reicht aber zur Temperierung des Raumes in der Regel nicht aus, so daß auf die Luftströmungen aus den Luftaustrittsöffnungen zumeist, trotz dieses Nachteils, nicht verzichtet werden kann.For this purpose, they are usually located above the Covering appropriate heat exchangers, of which the Cladding tempered over a large area and through heat radiation and convection affects the indoor climate below becomes. However, such an arrangement requires large areas in order to, especially at Cooling to work with small temperature differences so that there is no drop below the dew point. In many cases, the temperature (cooling) of the room under the cladding is carried out using selectively provided Air outlet openings, if necessary via the entire cladding distributed by the heated or Cooled air flows are blown into the room using fans be the direction of each airflow is adjustable so that the air circulation in the room can be influenced. By a relative high exit velocity from the air outlet openings becomes a desirable rapid mixing the supply air reaches with the indoor air; it exists however the danger of drafts. The mere radiation energy the ceiling panels of the cladding are enough for the temperature control of the room usually not, so that on the air flows from the air outlet openings mostly, despite this disadvantage, not can be dispensed with.

Im Gegensatz zur Kühlung wird die Heizung über die Deckenplatten der Verkleidung - von oben - vom Menschen als sehr unangenehm empfunden, da der Wärmeaustausch konträr zu den physikalischen Gesetzen erfolgen muß.In contrast to cooling, the heating is via the Ceiling panels of the cladding - from above - by people felt very uncomfortable because the heat exchange contrary to the physical laws.

Die Erfindung hat sich deshalb die Aufgabe gestellt, ein Kühl- und Heizelement der eingangs bezeichneten Art so auszubilden, daß damit zum Einen eine gleichmäßige, zugfreie Temperierung des Raumes möglich ist und zum Anderen örtlich eine individuel einstellbare Temperierung zu schaffen.The object of the invention is therefore to a cooling and heating element of the type mentioned in such a way that, on the one hand, an even, draft-free temperature control of the room is possible and Others have an individually adjustable temperature control to accomplish.

Erfindungsgemäß wird die Aufgabe mit den Merkmalen des Anspruchs 1 gelöst. According to the invention the task with the features of Claim 1 solved.

Dieser, zur Gesamtfläche des Raumes, kleine Bereich soll möglichst nicht direkt über der Aufenthaltszone der Menschen liegen. Die Leistung des Kühl- und Heizelementes muß größer sein, was durch eine höhere Temperaturdifferenz im Wärmetauscher erreicht wird. Nur damit ist es möglich, im Bereich des geringen Flächenanteiles die notwendige Energie zur Heizung bzw. Kühlung des gesamten Raumes einzubringen.This, to the total area of the room, small area if possible not directly above the lounge area of people lie. The performance of the cooling and Heating element must be larger, which is due to a higher Temperature difference in the heat exchanger is reached. Just it is possible in the area of the small area the energy required for heating or cooling of the entire room.

Eine solches Kühl- und Heizelement hat den Vorteil, daß die von dem Lüfter erzeugte erste Zuluftströmung großflächig und im wesentlichen senkrecht nach unten aus der Deckschicht, in viele Teilströme gesplittet, mit wegen des Strömungswiderstandes in der porösen Deckschicht stark herabgesetzter Strömungsgeschwindigkeit abzuströmen vermag. Bei einer geringen Temperaturdifferenz an dem Kühl- und Heizelement kann wegen der großen Abströmfläche nunmehr mit einer wesentlich höheren Temperaturdifferenz an dem Wärmetauscher und damit mit einem höheren Wirkungsgrad gearbeitet werden - die Anlage arbeitet außerordentlich effektiv sowohl bei Heizung als auch bei Kühlung. Die in den Raum austretenden Teilströme vermischen sich wegen ihrer geringen kinetischen Energie rasch mit der Raumluft, so daß Zugluft nicht entsteht, und die Diffusion der Teilströme in die Raumluft sorgt für einen schnellen Temperaturausgleich.Such a cooling and heating element has the advantage that the first supply air flow generated by the fan over a large area and essentially vertically downwards the top layer, split into many partial flows, with because of the flow resistance in the porous cover layer greatly reduced flow velocity can flow out. With a small temperature difference on the cooling and heating element can because of the large Outflow surface now with a significantly higher temperature difference on the heat exchanger and thus with one higher efficiency - the system works extremely effectively with both heating as well as with cooling. Those exiting the room Partial flows mix because of their low kinetic Energy quickly with the indoor air, so that drafts does not arise, and the diffusion of the partial flows into the Indoor air ensures rapid temperature compensation.

Die Zwangsdurchströmung der porösen Deckschicht erlaubt in dem Zusammenwirken mit dem Strahlungsanteil, die Fläche der Deckschicht mit relativ hohen Temperaturdifferenzen zu beaufschlagen, d. h. bereits in bzw. kurz unter der Deckschicht findet der angestrebte Temperaturausgleich mit der Raumluft statt. Das ist gleichbedeutend mit kostengünstigerem Energietransport, der wiederum den besseren Wirkungsgrad begründet. The forced flow through the porous cover layer allows in interaction with the radiation component that Surface of the top layer with relatively high temperature differences to act, d. H. already in or short the desired temperature compensation takes place under the top layer with the indoor air instead. It is synonymous with cheaper energy transport, the in turn justified the better efficiency.

Der mechanische Aufbau des erfindungsgemäßen Kühl- und Heizelementes ist dabei relativ beliebig. Es kann als dünnwandige Blechkassette oder auch in Sandwichbauweise aus mehreren Schichten ausgebildet sein.The mechanical structure of the cooling and The heating element is relatively arbitrary. It can be as thin-walled sheet metal cassette or sandwich construction be formed from several layers.

Der Lüfter und der Wärmetauscher können außerhalb der Deckenverkleidung oder sogar außerhalb des Raumes vorgesehen sein; es ist auch im Rahmen der Erfindung unerheblich, ob die Luftströmung in den Zwischenraum zwischen der Verkleidung und der Decke des Raumes oder separat in ein Kühl- und Heizelement eingespeist wird. Besonders bevorzugt ist es aber, wenn ein Lüfter und/oder in seiner Luftströmung ein Wärmetauscher in dem Inneren des Kühl- und Heizelementes vorgesehen sind, beispielsweise und zumindest der Lüfter in einem gesonderten Gehäuse. Auf diese Weise können die übrigen Bestandteile der Verkleidung sehr einfach gehalten werden.The fan and the heat exchanger can be outside the Ceiling paneling or even provided outside the room his; it is also irrelevant in the context of the invention whether the air flow into the space between the cladding and ceiling of the room or separately is fed into a cooling and heating element. However, it is particularly preferred if a fan and / or a heat exchanger in its air flow provided the interior of the cooling and heating element are, for example, and at least the fan in one separate housing. This way the rest Components of the cladding are kept very simple.

Werden die Abmessungen für die üblichen Deckenplatten, die ohne eine derartige, eine Luftströmung generierende Einrichtung ausgeführt sind, auch für das erfindungsgemäße Kühl- und Heizelement beibehalten, dann gestaltet sich dessen Einbindung in eine Verkleidung besonders leicht; es muß lediglich dafür gesorgt werden, daß die erforderlichen elektrischen und pneumatischen und/oder hydraulischen Leitungen innerhalb des Kühl- und Heizelementes installiert werden und die entsprechend zugehörigen Anschlüsse vorhanden sind.If the dimensions for the usual ceiling tiles, that without such an air flow generating Are executed device, also for the invention Maintain cooling and heating element, then designed its inclusion in a cladding in particular light; it only has to be ensured that the required electrical and pneumatic and / or hydraulic lines within the cooling and heating element be installed and the corresponding associated Connections are available.

Die - wärmetechnisch passiven - Deckenplatten können dabei in Sandwichbauweise ausgebildet und aus einer Trägerplatte sowie an dieser ein- oder beidseitig mit einer dünnen, mit der Trägerplatte verklebten Deckfolie zusammengesetzt sein. Die Trägerplatte besteht dabei bevorzugt aus einem geschäumten Werkstoff. The - thermally passive - ceiling tiles can trained in sandwich construction and from one Carrier plate and on this on one or both sides with a thin cover film glued to the carrier plate be composed. The carrier plate is there preferably made of a foamed material.

Die Deckschicht des erfindungsgemäßen Kühl- und Heizelementes besteht am besten aus einem Vlies oder Gewebe aus Glas-, Kunst- und/oder Naturfasern; sie ist für die erste Zuluftströmung durchlässig. Hingegen kann die vom Raum abgewandte und auf dessen Decke weisende Seite des Kühl- und Heizelementes mit einer für diese erste Zuluftströmung undurchlässigen Abdeckung versehen sein.The cover layer of the cooling and heating element according to the invention is best made of a fleece or fabric made of glass, synthetic and / or natural fibers; it is for them first supply air flow permeable. On the other hand, that of Side of the room facing away from and facing the ceiling Cooling and heating element with one for this first supply air flow impermeable cover.

Die Intensität der Konvektion wird verbessert durch mindestens eine, die Deckschicht durchbrechende Luftaustrittsöffnung für eine ungestört aus dem Lüfter und/oder dem Wärmetauscher in den Raum geförderte zweite Zuluftströmung, die dann beispielsweise auch über den strömungstechnisch separierten Zwischenraum oberhalb der Verkleidung durch ein Kühl- und Heizelement hindurch abströmbar sein kann. Selbstverständlich können auch allein innerhalb des Kühl- und Heizelementes entsprechende Zuluft-Kanäle vorgesehen sein, so daß beide Zuluftströmungen dem gleichen Funktionselement entströmen können, gemeinsam oder einzeln; die jeweilige Anordnung kann den örtlichen Verhältnissen entsprechend ausgewählt werden. Auf diese Weise ist es möglich, mehrere, sich überschneidende und durchdringende Luftzirkulationen in dem Raum zu erzeugen.The convection intensity is improved by at least one air outlet opening breaking through the cover layer for an undisturbed out of the fan and / or the heat exchanger conveyed into the room second supply air flow, which then also, for example across the fluidically separated space above the cladding by a cooling and heating element can be flowed through. Of course can also be used alone within the cooling and heating element appropriate supply air channels may be provided so that both supply air flows the same functional element can escape, together or individually; the respective Arrangement can be according to local conditions to be selected. That way it is possible several, overlapping and penetrating To create air circulation in the room.

Es ist zweckmäßig, wenn der Wärmetauscher mit einer Auffangwanne für anfallendes Kondensat versehen ist; insbesondere im Kühlbetrieb leistet eine solche Änordnung gute Dienste. Die Anordnung kann so getroffen sein, daß das Kondensat durch Verdunstung in den Raum abgeführt wird, es ist aber auch möglich, eine entsprechende Kondensatleitung aus dem Raum herauszuführen.It is useful if the heat exchanger with a Drip pan for condensate is provided; Such an arrangement is particularly effective in cooling mode good services. The arrangement can be made in this way be that the condensate by evaporation in the room is dissipated, but it is also possible to use a corresponding one Lead the condensate line out of the room.

In einer bevorzugten Ausführung des erfindungsgemäßen Kühl- und Heizelementes ist vorgesehen, daß der Lüfter ansaugseitig mit einem Filter von dem Raum getrennt ist. Das Filter kann von dem Raum aus sichtbar angebracht sein, so daß sein Verschmutzungsgrad kontinuierlich kontrolliert werden kann, ohne daß dazu das Filter ausgebaut werden müßte.In a preferred embodiment of the invention Cooling and heating element is provided that the fan separated from the room with a filter on the intake side is. The filter can be attached visibly from the room be so that its pollution level is continuous can be checked without the filter should be expanded.

Es ist zweckmäßig, wenn das Kühl- und Heizelement auch noch schallschluckend ausgebildet ist, falls es Bestandteil einer sogenannten Akustikdecke ist, die dann in gesamter Fläche schallschluckend ist; die temperierende Funktion des Kühl- und Heizelementes wird dadurch nicht beeinträchtigt.It is useful if the cooling and heating element too is still sound absorbing if it is Part of a so-called acoustic ceiling is that then absorbs sound throughout the area; the tempering Function of the cooling and heating element not affected by this.

Die Temperierung der Zuluftströmungen kann zwar, wie oben dargelegt, außerhalb des Kühl- und Heizelementes erfolgen; es ist aber günstig, wenn dazu in dem Kühl- und Heizelement eine Heizung und/oder Kühlung für die Zuluftströmungen vorgesehen ist, so daß eine kompakte, selbst alle notwendigen Funktionselemente enthaltende Baueinheit gebildet wird, die als Modul für eine beliebig zusammenstellbare Verkleidung dient und beispielsweise auch noch durch ihren raumseitigen Dekor raumästhetische Aufgaben wahrzunehmen vermag.The temperature control of the supply air flows can, however set out above, outside the cooling and heating element respectively; but it is convenient if the cooling and heating element a heater and / or cooling for the Supply air flows are provided so that a compact, itself containing all the necessary functional elements Unit is formed as a module for any customizable cladding serves and for example also thanks to its interior decor Can perform tasks.

Die Erfindung ist weiterhin gekennzeichnet durch eine Verkleidung für die Decke eines Raumes, die mindestens in einem Teilbereich den Raum klimatisierende erfindungsgemäße Kühl- und Heizelemente enthält, im übrigen aber aus entsprechenden, jedoch ohne Lüfter, Heizung/Kühlung und Wärmetauscher ausgeführten, rein verkleidenden Deckenplatten zusammengesetzt ist; in der Regel reicht es wegen der durch die erfindungsgemäßen Kühl- und Heizelemente intensiven konvektiven Temperierung des Raumes tatsächlich aus, wenn nur ein kleiner Teil der Deckenverkleidung mit derartigen "aktiven" wärmetechnischen Funktionselementen ausgerüstet ist. Wegen der üblicherweise durch die Fenster geregelten Frischluftzufuhr ist es dabei günstig, wenn die klimatisierenden Kühl- und Heizelemente mindestens teilweise in der Nähe der Fenster vorgesehen sind. Das hat auch den Vorteil, daß die Zufuhr von erwärmter oder gekühlter Zuluft in den Raum an einer Stelle erfolgt, an der sie wenig störend ist, weil sich in der Nachbarschaft von Fenstern zumeist keine Personen aufhalten. Eine für eine hohe Luftwechselzahl ausreichende Bereitstellung von Frischluft kann dadurch erfolgen, daß die klimatisierenden Kühl- und Heizelemente mindestens teilweise in der Nähe von in dem Raum befindlichen Durchführungen durch eine Außenwand für die Außenluft vorgesehen sind; zweckmäßig sind diese in der Nähe eines Fensters.The invention is further characterized by a Cladding for the ceiling of a room, at least in a partial area air-conditioning the room according to the invention Contains cooling and heating elements, otherwise but from appropriate, but without fan, heating / cooling and heat exchanger designed, purely clad Ceiling panels are assembled; in the Rule is sufficient because of the invention Cooling and heating elements intensive convective temperature control of space if only a small one Part of the ceiling cladding with such "active" thermal functional elements is equipped. Because of the usually regulated by the window Fresh air supply is beneficial if the air-conditioning Cooling and heating elements at least partially are provided near the windows. That also has the advantage that the supply of heated or cooled Supply air into the room at a point where it is little distracting because it is in the neighborhood no one is stopping people from windows. One for a high air exchange rate sufficient provision of fresh air can take place in that the air-conditioning Cooling and heating elements at least partially near bushings in the room are provided by an outer wall for the outside air; these are expedient near a window.

Eine besonders intensive Luftzirkulation stellt sich ein, wenn - im Bereich des Fensters und im Ansaugbereich des Lüfters - mindestens eine Luftaustrittsöffnung so eingestellt ist, daß eine erste Teilströmung senkrecht nach unten gerichtet ist, die nach Auftreffen auf dem Fußboden wieder nach oben geführt wird, und wenn mindestens eine weitere Luftaustrittsöffnung so eingestellt ist, daß sie eine schräg, beispielsweise unter 30° zur Raumdecke, nach unten in den Raum hinein gerichtete zweite Teilströmung ausbildet, die im Bereich des Fensters ebenfalls wieder nach oben abgelenkt wird. Auf diese Weise wird die Teilströmung auf ihrem Weg durch den Raum dessen Raumtemperatur angenähert, bevor sie unmittelbar auf eine im Raum befindliche Person trifft.A particularly intensive air circulation arises on if - in the area of the window and in the suction area of the fan - at least one air outlet is set so that a first partial flow is directed vertically downwards, which after impact is led up again on the floor, and if at least one other air outlet opening like this is set to be oblique, for example at 30 ° to the ceiling, down into the room directed second partial flow that forms in the area the window is also deflected upwards again becomes. In this way, the partial flow on your Path through the room approximating its room temperature, before going straight to a person in the room meets.

Die Erfindung wird nachstehend an Hand der Zeichnung an einem Ausführungsbeispiel näher erläutert. Die einzige Figur zeigt ein erfindungsgemäßes Kühl- und Heizelement als Bestandteil einer Verkleidung für eine Decke im schematischen Längsschnitt und in ihrem eingebauten Zustand. The invention is based on the drawing an embodiment explained in more detail. The only Figure shows an inventive cooling and heating element as part of a covering for a ceiling in the schematic longitudinal section and in its installed state.

Das Kühl- und Heizelement Ke ist als Blechkassette ausgebildet, deren nach dem Raum Ra und einem Zwischenraum Zr zwischen der Decke und der Verkleidung gerichtete Oberflächen das Innere In des Kühl- und Heizelement Ke begrenzen. Dabei ist eine raumseitige Deckschicht Ds aus zu einem Gewebe oder Vlies verarbeiteten Fasern, beispielsweise Glasfasern, gebildet und bildet keine homogen geschlossene Fläche, sondern ist genauso wie die zugehörige Kleberschicht soweit porös, daß eine das Kühl- und Heizelement Ke beaufschlagende, zum Raum Ra hin gerichtete erste Zuluftströmung Zs1 ungehindert und lediglich unter Druckabfall passieren kann und eventuell auch darüberhinaus Schallwellen ungehindert in das Innere In gelangen können.The cooling and heating element Ke is designed as a sheet metal cassette, their after space Ra and a space Zr directed between the ceiling and the cladding Surfaces the inside of the cooling and heating element Ke limit. There is a cover layer Ds on the room side from fibers made into a fabric or fleece, for example glass fibers, formed and does not form homogeneously closed area, but is just like the associated adhesive layer is so porous that a Cooling and heating element Ke applied to the room Ra directed first supply air flow Zs1 unhindered and can only happen under pressure drop and possibly also sound waves unimpeded into the Can get inside.

Das Kühl- und Heizelement Ke enthält an seiner in der Zeichnung rechten Seite ein separates Gehäuse Gh, das zu dem Inneren In hin offen ist. In dem Gehäuse Gh befindet sich ein walzenförmiger Lüfter Lü, der aus dem Raum Ra unterhalb der Verkleidung die dort anstehende Luft ansaugt. Dabei kann es sich um reine Raumluft Rl, um Außenluft Al oder ein Gemisch von beiden handeln; eine Durchführung Df für die Außenluft Al durch eine Außenwand Aw des Raumes Ra kann zu diesem Zweck gegebenenfalls einstellbar ausgeführt sein, so daß die Zumischung von frischer Außenluft Al gesteuert werden kann. Zwischen dem Lüfter Lü und dem Raum Ra ist ein Filter Fi vorgesehen, das von dem Raum Ra aus sichtbar ist, so daß es fortwährend hinsichtlich seiner Verschmutzung kontrolliert und bei Bedarf gewechselt werden kann.The cooling and heating element Ke contains on it in the Drawing right side of a separate housing Gh, the is open to the inside. Located in the housing Gh is a cylindrical fan Lü, which from the Room Ra underneath the cladding the one there Sucking in air. This can be pure indoor air Rl, it is outside air Al or a mixture of both; a passage Df for the outside air Al through a The outer wall Aw of the room Ra can be used for this purpose if necessary be adjustable so that the admixture can be controlled by fresh outside air Al. There is a filter between the fan Lü and the room Ra Fi provided, which is visible from the room Ra, so that it is continually polluted can be checked and changed if necessary.

Die von dem Lüfter Lü bereitgestellte Zuluft durchströmt zunächst einen Wärmetauscher Wt, der zur Temperierung der Zuluft dient, die, gegebenenfalls thermostatgesteuert, auf einen vorgewählten Sollwert gekühlt oder beheizt wird; die Einzelheiten sind fachüblich und in der Zeichnung nicht ausgeführt. Der Wärmetauscher Wt und der Lüfter müssen nicht notwendig in dem Gehäuse Gh oder überhaupt innerhalb des Kühl- und Heizelementes Ke vorgesehen sein; vielmehr kann die Temperierung auch durch einen extern bereitgestellten Wärmetauscher erfolgen, so daß dann die erforderlichen Funktionselemente nicht in dem Kühl- und Heizelement Ke installiert werden müssen. Hier sind aber der Lüfter Lü und der Wärmetauscher Wt komplett in dem Gehäuse Gh vorgesehen; der Wärmetauscher Wt ist mit einer Auffangwanne Kw ausgestattet, die das während der Kühlung anfallende Kondensat aufsammelt; es läßt sich einrichten, daß die relativ geringen Mengen an Kondensat verdunsten, hilfsweise mit Unterstützung einer Zusatzheizung. Die Zuluft kann nicht in den Zwischenraum Zr abströmen, weil dies von einer an den Zwischenraum Zr angrenzenden, auf der Oberfläche des Kühl- und Heizelementes Ke aufgebrachte Abdeckung Ad verhindert wird.The supply air provided by the fan Lü flows through first a heat exchanger Wt, which is used for temperature control serves the supply air, which, if necessary thermostatically controlled, cooled to a preselected setpoint or is heated; the details are customary and not shown in the drawing. The heat exchanger Wt and the fan does not have to be in the housing Gh or at all within the cooling and heating element Ke be provided; rather, the temperature control can also done by an externally provided heat exchanger, so that the required functional elements not installed in the cooling and heating element Ke Need to become. But here are the Lü fans and the Heat exchanger Wt completely provided in the housing Gh; the heat exchanger Wt is equipped with a drip pan Kw, the condensate generated during cooling picks up; it can be arranged that the relative evaporate small amounts of condensate, alternatively with the support of an additional heater. The supply air cannot flow into the space Zr because of this from one adjacent to the space Zr, on the Surface of the cooling and heating element Ke applied Cover ad is prevented.

Die Zuluft wird nach ihrer Temperierung in die Zuluftströmungen Zs1 und Zs2 aufgespalten. Während der Zuluftstrom Zs1 mit relativ hohem Druckverlust flächig aus der Deckschicht Ds des Kühl- und Heizelementes Ke in den Raum Ra austritt, wird der Zuluftstrom Zs2 über eine Luftaustrittsöffnung Lö in den Raum Ra mit geringem Druckverlust gelenkt. Der Zuluftstrom Zs2 hat bereits vor dem Durchtritt durch die Luftaustrittsöffnung Lö einen intensiven Temperaturausgleich erfahren, bedingt durch die das gesamte Element Ke umgebende Raumluft. Die Luftaustrittsöffnung Lö ist so ausgebildet, daß der Zuluftstrom Zs2 gerichtet austreten kann. Es hat sich als besonders vorteilhaft gezeigt, wenn eine erste Teilströmung Ts1 senkrecht und eine weitere Teilströmung Ts2 schräg nach unten gerichtet ist, diese unter 30° bis 45° variabel einstellbar zur Ebene der Verkleidung.The supply air is fed into the supply air flows after it has been tempered Zs1 and Zs2 split. During the supply air flow Zs1 flat with a relatively high pressure loss from the cover layer Ds of the cooling and heating element Ke in the room Ra, the supply air flow Zs2 is over an air outlet opening Lö in the room Ra with little Pressure loss directed. The supply air flow Zs2 already has before passing through the air outlet opening Lö experience intensive temperature compensation, conditionally through the room air surrounding the entire element Ke. The air outlet opening Lö is designed that the supply air flow Zs2 can exit directed. It has proven to be particularly advantageous when a first partial flow Ts1 vertical and a further partial flow Ts2 is directed obliquely downwards, this one below 30 ° to 45 ° variably adjustable to the level of Cladding.

Die Anordnung der Kühl- und Heizelemente Ke in der Nähe eines Fensters Fe hat den Vorteil, daß eine Wärme- oder Kühlbelastung von Personen im Raume Ra vermeidbar ist. Darüberhinaus wird die Außenluft Al direkt und verlustarm von dem Lüfter Lü angesaugt.The arrangement of the cooling and heating elements Ke nearby a window Fe has the advantage that a heat or Cooling load of people in the room Ra can be avoided. In addition, the outside air Al becomes direct and low-loss sucked in by the fan Lü.

Zusätzlich zu der Luftaustrittsöffnung in den Heiz- und Kühlelementen kann ein weiterer Luftauslaß La für die Erzeugung einer gerichteten Strömung vorgesehen werden, der vorteilhaft unterhalb des Fensters angeordnet ist.In addition to the air outlet opening in the heating and cooling elements can have another air outlet La for generating a directional flow be provided, which is advantageously below the window is arranged.

Dieser Luftauslaß La erzeugt eine gerichtete Strömung, durch die das Raumklima im gewünschten Sinne beinflußbar ist. This air outlet La creates a directional flow, through which the room climate can be influenced in the desired sense is.

Aufstellung der BezugszeichenList of reference numbers

AdAd
Abdeckungcover
AlAl
AußenluftOutside air
AwAw
AußenwandOuter wall
DfDf
Durchführungexecution
DsDs
DeckschichtTop layer
FeFe
Fensterwindow
FiFi
Filterfilter
GhGh
Gehäusecasing
InIn
InneresInterior
KeKe
Kühl- und HeizelementCooling and heating element
KwKw
AuffangwanneDrip pan
LaLa
LuftauslaßAir outlet
LöLö
LuftaustrittsöffnungAir outlet opening
LüLü
LüfterFan
RaRa
Raumroom
RlRl
RaumluftIndoor air
Ts1Ts1
(erste) Teilströmung(first) partial flow
Ts2Ts2
(zweite) Teilströmung(second) partial flow
WtWt
WärmetauscherHeat exchanger
ZrZr
ZwischenraumSpace
Zs1Zs1
(erste) Zuluftströmung(first) supply air flow
Zs2Zs2
(zweite) Zuluftströmung(second) supply air flow

Claims (16)

  1. A planar cooling and heating element for forming a lining for the ceiling of a room and for incorporation in a lining of this type, in which the interspace (Zr) between the lining and the ceiling or the interior (In) of the cooling and heating element (Ke) can itself be acted upon with a tempered air flow. and the cooling and heating element (Ke) is closed off from the room by a porous cover layer (Ds) which is traversable by a first inflow air flow (Zs1) directed into the room (Ra) and separated by the porous cover layer (Ds) two-dimensionally into a plurality of partial flows, characterized in that the cover layer (Ds) is constructed in the form of a microporous layer, at least one air-outlet opening (Lö) cut through the cover layer (Ds) is provided for a second inflow air flow (Zs2) fed in an undisturbed manner from a fan (Lü) and/or a heat exchanger (Wt) into the room (Ra), and the at least one air-outlet opening (Lö) [is] constructed in the form of rotatable. continuously adjustable ventilation elements.
  2. A cooling and heating element according to Claim 1. characterized in that a fan (Lü) and/or in its air flow a heat exchanger (Wt) is provided in the interior (In) of the cooling and heating element (Ke), preferably at least the fan (Lü) in a separate housing (Gh).
  3. A cooling and heating element according to one of Claims 1 or 3 [sic], characterized in that the cover layer (Ds) consists of a fleece or fabric of glass. synthetic fibres and/or natural fibres.
  4. A cooling and heating element according to one of Claims 1 to 3. characterized in that the heat exchanger (Wt) is provided with a collecting trough (Kw) for condensate which may occur.
  5. A cooling and heating element according to one of Claims 1 to 4. characterized in that the fan (Lü) is separated from the room (Ra) on the intake side by a filter (Fi).
  6. A cooling and heating element according to Claim 5. characterized in that the filter (Fi) is visible from the room (Ra).
  7. A cooling and heating element according to one of Claims 1 to 6, characterized in that it is designed so as to be sound-absorbing.
  8. A cooling and heating element according to one of Claims 1 to 7, characterized in that a heating and/or cooling means for the inflow air flows (Zs1. Zs2) is provided in its interior (In).
  9. A cooling and heating element according to one of Claims I to 7. characterized in that it is closed off from the ceiling of the room (Ra) by an air-impermeable cover (Ad).
  10. A lining for the ceiling of a room. characterized in that it contains cooling and heating elements (Ke) - air-conditioning the room (Ra) - according to one of Claims 1 to 9 at least in a partial area.
  11. A lining according to Claim 10, characterized in that the cooling and heating elements (Ke) are provided at least in part in the vicinity of the windows (Fe) of the room (Ra).
  12. A lining according to Claim 10 or 11. characterized in that the cooling and heating elements (Ke) are provided at least in part in the vicinity of ducts (Df) - present in the room (Ra) - through an outer wall (Aw) for the external air (Al).
  13. A lining according to one of Claims 10 to 12, characterized in that at least one air-outlet opening (Lö) is set in such a way that a first partial flow (Ts1) is directed vertically downwards, and at least one further air-outlet opening (Lö) is set in such a way that it forms a second partial flow (Ts2) directed obliquely downwards into the room (Ra).
  14. A lining according to Claim 13. characterized in that the air-outlet openings (Lö) are provided adjacent to each other.
  15. A lining according to one of Claims 10 to 14. characterized in that a further air outlet (La) for an air flow directed from the room to the cooling and heating element is provided.
  16. A lining according to Claim 15. characterized in that the air outlet (La) is arranged below the window.
EP96110258A 1995-07-27 1996-06-26 Flat element for heating or cooling Expired - Lifetime EP0756138B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29512106U 1995-07-27
DE29512106U DE29512106U1 (en) 1995-07-27 1995-07-27 Flat cooling and heating element

Publications (3)

Publication Number Publication Date
EP0756138A2 EP0756138A2 (en) 1997-01-29
EP0756138A3 EP0756138A3 (en) 1997-06-04
EP0756138B1 true EP0756138B1 (en) 2001-08-16

Family

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Application Number Title Priority Date Filing Date
EP96110258A Expired - Lifetime EP0756138B1 (en) 1995-07-27 1996-06-26 Flat element for heating or cooling

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EP (1) EP0756138B1 (en)
AT (1) ATE204375T1 (en)
DE (2) DE29512106U1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730180C2 (en) 1997-07-15 2000-11-30 Wilhelmi Werke Ag Process for air conditioning and ceiling for such a process
DE10043968A1 (en) * 2000-09-06 2002-04-04 Wilhelmi Werke Ag A celing mounted room air conditioning system has chilled air passed through the heat exchanger to prevent condensation water being passed with the cool air.
DE10128381C1 (en) * 2001-06-06 2003-01-09 Ltg Ag Device, for heating and/or cooling a room, comprises a heating and/or cooling element and a heat- or cold-producing radiant surface
WO2005056065A1 (en) * 2003-12-12 2005-06-23 LK Luftqualität AG System for influencing and treating the air of at least one room
DE10360237A1 (en) * 2003-12-12 2005-07-21 LK Luftqualität AG System for treating the air from a room comprises two air quality sensors, an ionizer, an ozone sensor, a humidity sensor and air flow sensor and a temperature control unit and a chamber or hood
CH708016A1 (en) * 2013-04-25 2014-10-31 Barcol Air Air Element.
EP3809053A1 (en) 2019-10-18 2021-04-21 LTG Aktiengesellschaft Ceiling panel assembly and room

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138172A (en) * 1954-12-22 1957-06-11 Heat exchange system for controlling the temperature inside buildings, boats or the like
DE2609030C3 (en) * 1976-03-05 1984-05-24 Fläkt AB, 13134 Nacka Device for guiding air flows emerging from an air-permeable perforated surface
NL8502079A (en) * 1985-07-18 1987-02-16 Aerts Elektro Bv Animal stall ceiling - comprises porous layer of sponge material resistant to water and cleaning agents
EP0536446A1 (en) * 1991-10-11 1993-04-14 Ca Bygg Ab A method for heating the air in a building
DE9205391U1 (en) * 1992-04-21 1992-07-02 Schimmel, Wolfgang, 4802 Halle Air distribution duct

Also Published As

Publication number Publication date
EP0756138A2 (en) 1997-01-29
DE29512106U1 (en) 1996-11-28
EP0756138A3 (en) 1997-06-04
DE59607488D1 (en) 2001-09-20
ATE204375T1 (en) 2001-09-15

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