GB2580620A - Heat pump system - Google Patents

Heat pump system Download PDF

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Publication number
GB2580620A
GB2580620A GB1900622.0A GB201900622A GB2580620A GB 2580620 A GB2580620 A GB 2580620A GB 201900622 A GB201900622 A GB 201900622A GB 2580620 A GB2580620 A GB 2580620A
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GB
United Kingdom
Prior art keywords
heat pump
pump system
heat
network
air
Prior art date
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.)
Withdrawn
Application number
GB1900622.0A
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GB201900622D0 (en
Inventor
Hewitt Mark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ICAX Ltd
Original Assignee
ICAX Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ICAX Ltd filed Critical ICAX Ltd
Priority to GB1900622.0A priority Critical patent/GB2580620A/en
Publication of GB201900622D0 publication Critical patent/GB201900622D0/en
Publication of GB2580620A publication Critical patent/GB2580620A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/04—Other domestic- or space-heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1045—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump and solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F24D19/106—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump and solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1078—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump and solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/11—Geothermal energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/40—Geothermal heat-pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Water Supply & Treatment (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A heat pump system 200 comprises a heat pump 210, a heating unit 220 connected to the heat pump via pipes 202 and a domestic hot water unit 230 connected to the heat pump via pipes 203. The heat pump may be an air source heat pump, a ground source heat pump, or a mixed air/ground source heat pump (dual source heat pump). The heat pump system may comprise a connection pipe 204 connecting the heat pump system to a utility network 240, wherein the utility network is a network water supply comprising a potable water network and a sewerage network. The connection to the utility network may be a direct connection via the connection pipe or an indirect connection via a heat exchanger. The sewerage network may comprise heat recovery. The heat pump system may be operable in at least one of the following modes: air only mode, ground only mode, and mixed air/ground mode. The modes may be selected at the heat pump directly or via a user control interface 290. The heat pump system may comprise a heat collector such as a solar thermal roof array and may be operable in a heat collector mode.

Description

Heat Pump System
Field of the Invention
The present invention relates generally to heat pump systems.
Background of the Invention
The following discussion of the prior art is intended to facilitate an understanding of the invention and to enable the advantages of it to be more fully understood. It should be appreciated, however, that any reference to prior art throughout the specification should not be construed as an express or implied admission that such prior art is widely known or forms
part of common general knowledge in the field.
Known are heat pumps that use a refrigerant cycle and operate with low grade heat (low temperature). The known heat pump takes low-grade heat (low temperature), compresses it to a higher grade heat (high temperature) and moves that heat to another location in the cycle. It does so with the addition of energy, usually in the form of electricity. This refrigerant cycle is similar to the cooling process employed by a standard household refrigerator. In the heating mode, the heat pump removes heat from a relatively low temperature source, such as the ground or air, and delivers that heat to warm the interior of a building. In the cooling mode, heat is removed from the relatively warm building interior and rejected outside the building, either to the air or the ground (referred to as the heat sink). In the dual-source heat pump, the outside heat source/sink can be both the ground and the air, in contrast to a conventional heat pump that uses either the ground (ground-source heat pump) or the air (air-source heat pump).
Heat pumps are available as residential units and commercial-sized systems. Residential sizes typically range from 8 to 16 kW nominal capacities. Commercial systems in the 16 to 100 kW range are common. Heat pump systems can also be designed with a dual compressor to provide additional heating capacity at colder temperatures.
Exemplary prior art is for example CN202371930, which describes a water and air dual-source heat pump unit which aims at stabilising the heat exchange under the effect of temperature change and increasing the efficiency of the unit. The water and air dual-source heat pump unit consists of a heat pump unit, a dual-source heat exchanger which is connected with the heat pump unit, and a programmable logic controller (PLC) which is respectively connected with the heat pump unit and the dual-source heat exchanger. The heat exchanger in the water and air dual-source heat pump unit is the dual-source heat exchanger which consists of a water-source heat exchanger and an air-source heat exchanger. The opening and the closing of each of the water-source heat exchanger and the air-source heat exchanger are controlled through a valve which is controlled through the PLC.
With the presently available heat pumps, the following disadvantages exist. Air Source Heat Pumps (ASHPs) are relatively low cost, and easy to install, but are relatively inefficient. Ground source heat pumps are expensive, and complex to install but relatively efficient. A dual source heat pump combines the advantages of an air source and a ground source heat pump.
The object of the present invention is to advance the technology of heat pump systems, and in particular to overcome the problem of integrating the heat pump technology to the existing domestic water network.
It is an object of the present invention to overcome or substantially ameliorate one or more of the deficiencies of the prior art, or at least to provide a useful alternative.
Summary of the Invention
Accordingly, the invention provides a heat pump system as defined in the independent claims.
The abovementioned objectives are achieved by a heat pump system according to claim 1.
Further advantageous features are defined in the dependent claims.
With the present invention a heat pump system is provided that is capable of delivering DHW (domestic hot water) temperature, capable of DSR (Demand Side Response), capable of interaction with a utility supply (network water supply, including potable water network, and sewerage network with heat recovery), capable of taking heat from a collector (such as solar thermal roof array), and that uses a low GWP refrigerant.
Brief Description of the Drawings
Preferred embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a heat pump according to prior art; and Figure 2 is an embodiment of a heat pump system according to the present invention.
Detailed Description
The present invention provides a heat pump system. Preferably the heat pump is a dual source heat pump, DSHP.
"Dual source" refers to the use of both air and geothermal sources for the condensing process. In the cooling mode, the liquid refrigerant discharging from an air-source condenser is subcooled by using a ground-source cooled fluid. This fluid is then reused after the subcooler to desuperheat or remove some of the superheat from the hot gas before it goes into the air source condenser. Figure 1 shows a DSHP according to the prior art.
Such a DSHP can increase net refrigeration capacities by 1% or more per degree of subcooling, depending on the refrigerant, evaporator temperature, evaporator surface area, and other factors. Desuperheating with a secondary fluid, or by direct geothermal contact, results in much more rapid desuperheating of the hot gas refrigerant than does air source desuperheating. This rapid desuperheating results in much lower back head pressure to the compressor, and therefore results in much lower power consumption, a cooler-running compressor, and higher refrigerant mass flow.
Figure 1 shows the use of the air and ground sources in a "series" configuration whereby the hot pressure gas is first de-superheated via a heat exchanger using the ground-source fluid as the secondary fluid, then condensed via the air heat exchanger and then further sub-cooled via a third heat exchanger using the ground-source fluid as the secondary fluid (which temperature has been reduced by circulating through the ground).
The present invention is significantly different to prior technology, an example of which is depicted in Figure 1. For example, the air and the ground heat exchangers are connected in parallel, allowing both air and ground sources to be accessed by the refrigerant mass flow in any ratio between 0 and 100% at any time. This allows for greater flexibility with regards to source selection compared to heat exchangers connected in series. The "series" configuration pre-supposes that one source is cooler (in cooling mode) or warmer (in heating mode) than the other at all times. As an example, in the case of Figure 1, when the system is working in cooling mode, the configuration pre-supposes that the fluid returning from the ground is always cooler than the air.
One advantage of the dual-source technology is that the size of the ground loop may be significantly reduced compared to a conventional ground source heat pump. The buried piping in a typical ground-source heat pump installation is generally in the range of ca. 20 metres (65 feet) of vertical ground loop per kilowatt of system capacity. For the dual-source technology, the ground loop consists of ca 10 metres of vertical loop per kilowatt of capacity. In both installations, the actual length of the ground-coupled heat exchanger (ground loop) is a function of local climate, soil properties and building characteristics.
Turning now to Figure 2, the heat pump system 200 comprises a heat pump 210. On Figure 2, the heat pump 210 is depicted to be located outside of a building 201. Alternatively, the heat pump 210 could also be located inside the building 201, but this option is not shown in the drawings. As an alternative for existing systems, the present system could also employ existing heat pumps, like air source or ground source heat pumps. Any suitable ground source heat pump may comprise a borehole.
However, if a DSHP is used, the system 200 uses a single refrigeration circuit only, and the system can be switched to different modes. The modes can be selected, for example, at the heat pump 210 directly or via a user control interface 290. The system can be set to operate in air only mode, ground only mode, and mixed air/ground mode.
The heat pump 210 is connected to a heating unit 220, which can heat rooms inside the building by radiating heat provided by the hot water provided by the heat pump 210. The heat pump 210 is connected to the heating unit 220 via water pipe 202.
The heat pump 210 is also connected to a domestic hot water tank 230, where hot water for domestic use can be obtained, without requiring additional direct electrical heating. The heat pump 210 is connected to the domestic hot water tank 230 via water pipe 203.
The heat pump 210 may also be connected to a utility supply 240, which usually is a local network water supply, including potable water network and sewerage network. The sewerage network could comprise heat recovery. The heat pump 210 is connected to the utility supply 240 via water pipe 204. The connection to the utility network 240 may either be a direct connection via the connection pipe 204 or an indirect connection via a heat exchanger.
The heat pump system 200 may also be capable of providing space cooling to buildings and may (additionally or alternatively) comprise a heat exchanger arranged to enable usage of any form of waste heat.
Not shown in the figures, the heat pump 210 could also be connected via water pipes to a heat collector such as a solar thermal roof array, which is capable of heating or cooling the water in the cycle through absorption of solar heat. In this case the system 200 could be set to a heat collector mode only, too.
Not shown in the figures, the heat pump 210 could also be connected via water pipes to any source of waste heat such as a recovered heat from third party refrigeration or chiller systems or from industrial processes.
The heat pump system 200 may comprise a control member arranged to control a defrost cycle of an air heat exchanger. Said control may be based on air pressure measurements across the air heat exchanger. The system may therefore comprise a air pressure measurement member arranged to provide air pressure measurements across the air heat exchanger. The control of a defrost cycle may include steps such as: triggering the cycle; managing the duration of the cycle; and stopping the cycle. Such a control member and method of use thereof preferably ensures that the frequency and duration of defrost cycles are both kept to the minimum.
The heat pump system 200 may comprise one or more (or a set of) fans, preferably arranged to blow air inwards. Preferably said fans permit management and minimisation of any sound break out levels.
Further, a demand side response, DSR, capability (not shown) is included in the heat pump system 200. By linking a DSR system directly into the heat system itself DSR revenue can be generated as well as the impact of the electrified heat at peak times can be limited. The electrical infrastructure challenges of adjusting both the national grid to cope with intermittent renewable generation and massive electrification and local electricity networks to allow widespread introduction of heat pumps into buildings are significant.
Unless specifically stated otherwise, as apparent from the following discussions, it is 35 appreciated that throughout the specification discussions utilizing terms such as "processing," "computing," "calculating," "determining", analysing" or the like, refer to the action and / or processes of a computer or computing system, or similar electronic computing component, that manipulate and / or transform data represented as physical, such as electronic, quantities into other data similarly represented as physical quantities.
It will be understood that the steps of methods discussed are performed in one embodiment by an appropriate processor (or processors) of a processing (i.e., computer) system executing instructions (computer-readable code) stored in storage. It will also be understood that the invention is not limited to any particular implementation or programming technique and that the invention may be implemented using any appropriate techniques for implementing the functionality described herein. The invention is not limited to any particular programming language or operating system.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment but may. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure, in one or more embodiments.
Furthermore, while some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention, and form different embodiments, as would be understood by those skilled in the art. For example, in the following claims, any of the claimed embodiments can be used in any combination.

Claims (15)

  1. CLAIMSA heat pump system (200) comprising: a heat pump (210), a heating unit (220) connected to the heat pump (210) via pipes (202), a domestic hot water unit (230) connected to the heat pump (210) via pipes (203).
  2. A heat pump system (200) according to claim 1, wherein the heat pump (210) is one of: an air source heat pump, a ground source heat pump, and a mixed air/ground source heat pump, also called dual source heat pump.
  3. A heat pump system (200) according to claim 2, wherein the ground source heat pump comprises a borehole.
  4. A heat pump system (200) according to any one of the previous claims, further comprising: a connection pipe (204) connecting the heat pump system (200) to a utility network (240), wherein the utility network (240) is a network water supply, comprising a potable water network and a sewerage network, wherein the connection to the utility network (240) may either be a direct connection via the connection pipe (204) or an indirect connection via a heat exchanger.
  5. A heat pump system (200) according to claim 4, wherein the sewerage network comprises heat recovery.
  6. A heat pump system (200) according to any one of the previous claims, wherein the heat pump system is configured to be operable in at least one of the following modes: air only mode, ground only mode, and mixed air/ground mode.
  7. A heat pump system (200) according to claim 6, wherein the modes can be selected at the heat pump (210) directly or via a user control interface (290). 1. 2. 3. 4. 5. 6. 7.
  8. 8. A heat pump system (200) according to any one of the previous claims, further comprising a heat collector such as a solar thermal roof array.
  9. 9. A heat pump system (200) according to claim 8, wherein the heat pump system is further configured to be operable in a heat collector mode.
  10. 10. A heat pump system (200) according to any one of the previous claims, further connected to a demand side response, DSR, system.
  11. 11. A heat pump system (200) according to any one of the previous claims, further configured to use a low GWP refrigerant.
  12. 12. A heat pump system (200) according to any one of the previous claims capable of providing space cooling to buildings.
  13. 13. A heat pump system (200) according to any one of the previous claims, further comprising a heat exchanger, wherein the heat exchanger is arranged to enable the use of any form of waste heat.
  14. 14. A heat pump system (200) according to claim 13, further comprising a controller arranged to control a defrost cycle of the heat exchanger according to air pressure measurements across the heat exchanger.
  15. 15. A heat pump system (200) according to any one of the previous claims, further comprising one or more fans arranged to blow air inwards.
GB1900622.0A 2019-01-16 2019-01-16 Heat pump system Withdrawn GB2580620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1900622.0A GB2580620A (en) 2019-01-16 2019-01-16 Heat pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1900622.0A GB2580620A (en) 2019-01-16 2019-01-16 Heat pump system

Publications (2)

Publication Number Publication Date
GB201900622D0 GB201900622D0 (en) 2019-03-06
GB2580620A true GB2580620A (en) 2020-07-29

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GB1900622.0A Withdrawn GB2580620A (en) 2019-01-16 2019-01-16 Heat pump system

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Publication number Priority date Publication date Assignee Title
US4091636A (en) * 1976-02-03 1978-05-30 Aktiebolaget Atomenergi Heat pump system
US20060288724A1 (en) * 2005-06-27 2006-12-28 Geofurnace Development Inc. Hybrid heating and cooling system
US8701432B1 (en) * 2011-03-21 2014-04-22 Gaylord Olson System and method of operation and control for a multi-source heat pump
US8726682B1 (en) * 2012-03-20 2014-05-20 Gaylord Olson Hybrid multi-mode heat pump system
EP3196559A1 (en) * 2016-01-25 2017-07-26 Sharp Kabushiki Kaisha Optimised heat pump system
US20180335219A1 (en) * 2015-11-20 2018-11-22 Sens Geoenergy Storage Ab Heat pump system and method for controlling a heat pump system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091636A (en) * 1976-02-03 1978-05-30 Aktiebolaget Atomenergi Heat pump system
US20060288724A1 (en) * 2005-06-27 2006-12-28 Geofurnace Development Inc. Hybrid heating and cooling system
US8701432B1 (en) * 2011-03-21 2014-04-22 Gaylord Olson System and method of operation and control for a multi-source heat pump
US8726682B1 (en) * 2012-03-20 2014-05-20 Gaylord Olson Hybrid multi-mode heat pump system
US20180335219A1 (en) * 2015-11-20 2018-11-22 Sens Geoenergy Storage Ab Heat pump system and method for controlling a heat pump system
EP3196559A1 (en) * 2016-01-25 2017-07-26 Sharp Kabushiki Kaisha Optimised heat pump system

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