GB1504395A - Environmental control systems - Google Patents

Environmental control systems

Info

Publication number
GB1504395A
GB1504395A GB27340/75A GB2734075A GB1504395A GB 1504395 A GB1504395 A GB 1504395A GB 27340/75 A GB27340/75 A GB 27340/75A GB 2734075 A GB2734075 A GB 2734075A GB 1504395 A GB1504395 A GB 1504395A
Authority
GB
United Kingdom
Prior art keywords
refrigerant
heating
heat exchanger
heat
cooling
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.)
Expired
Application number
GB27340/75A
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Daikin Kogyo Co 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 Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Priority to GB27340/75A priority Critical patent/GB1504395A/en
Publication of GB1504395A publication Critical patent/GB1504395A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0257—Central heating systems using heat accumulated in storage masses using heat pumps air heating system
    • F24D11/0271—Central heating systems using heat accumulated in storage masses using heat pumps air heating system combined with conventional energy
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02732—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way valves
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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]
    • Y02B30/13—Hot air central heating systems using heat pumps

Abstract

1504395 Heating and cooling buildings DAIKIN KOGYO CO Ltd 27 June 1975 27340/75 Headings F4U and F4H In a central heating or cooling system including indoor coils 11 and an outdoor coil 3 operable to achieve heating and/or cooling of a space, a refrigerant acting as a heating medium in the heating mode is circulated from a heat exchanger 15 wherein it is heated and vapourized by a heat source, e.g. hot water, at a temperature above the outdoor ambient air temperature, and a four-way valve 2 to a circulating pump or compressor 1, to the indoor coils 11 where it is condensed and then returned directly to the heat exchanger 15, by-passing an outdoor coil 3 of the heat pump circuit. The flow resistance of the refrigerant in the circuit between the indoor coils 11 and heat exchanger 15 is limited, as by very low pipe line resistance or capillary tube 25 presenting little resistance such that the refrigerant pressure at the entrance of the heat exchanger 15 is higher than the saturation pressure corresponding to the air temperature around the exchanger and no expansion means are used. As a result the compressor 1 operates at higher pressure than a conventional heat pump and the specific volume of refrigerant vapour drawn in so small as to enable it to operate with increased volumes, reduced compression ratio and reduced power consumptions compared with conventional compressors. By the utilization of an outdoor coil 3, expansion means 12, a by-pass circuit 31 for the expansion means and reversal flow means, the apparatus may perform a cooling operation utilizing refrigerant piping and the indoor coils 11 acting as evaporators. The apparatus may also be utilized to heat a water supply.
GB27340/75A 1975-06-27 1975-06-27 Environmental control systems Expired GB1504395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27340/75A GB1504395A (en) 1975-06-27 1975-06-27 Environmental control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27340/75A GB1504395A (en) 1975-06-27 1975-06-27 Environmental control systems

Publications (1)

Publication Number Publication Date
GB1504395A true GB1504395A (en) 1978-03-22

Family

ID=10257993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27340/75A Expired GB1504395A (en) 1975-06-27 1975-06-27 Environmental control systems

Country Status (1)

Country Link
GB (1) GB1504395A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451548A1 (en) * 1979-03-12 1980-10-10 Totalgaz Cie Fse Warm air heating with heat pump - involves supplementary heating utilising liq. or gaseous fuel during extreme conditions
ITMI20091056A1 (en) * 2009-06-16 2010-12-17 Climaveneta S P A REVERSIBLE CYCLE HEAT PUMP WITH STEAM COMPRESSION
EP2224189A3 (en) * 2009-02-26 2015-04-15 LG Electronics Inc. Water circulation system associated with refrigerant cycle
CN114233477A (en) * 2021-12-13 2022-03-25 中国船舶重工集团公司第七0三研究所 Variable flow and variable temperature double-loop closed circulation intercooling system of gas turbine
CN114486699A (en) * 2021-12-27 2022-05-13 敦煌研究院 Test cabin body for simulating wind and rain environment erosion full-scale test sample

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451548A1 (en) * 1979-03-12 1980-10-10 Totalgaz Cie Fse Warm air heating with heat pump - involves supplementary heating utilising liq. or gaseous fuel during extreme conditions
EP2224189A3 (en) * 2009-02-26 2015-04-15 LG Electronics Inc. Water circulation system associated with refrigerant cycle
ITMI20091056A1 (en) * 2009-06-16 2010-12-17 Climaveneta S P A REVERSIBLE CYCLE HEAT PUMP WITH STEAM COMPRESSION
CN114233477A (en) * 2021-12-13 2022-03-25 中国船舶重工集团公司第七0三研究所 Variable flow and variable temperature double-loop closed circulation intercooling system of gas turbine
CN114233477B (en) * 2021-12-13 2024-02-20 中国船舶重工集团公司第七0三研究所 Variable flow and variable temperature double-loop closed circulation inter-cooling system of gas turbine
CN114486699A (en) * 2021-12-27 2022-05-13 敦煌研究院 Test cabin body for simulating wind and rain environment erosion full-scale test sample
CN114486699B (en) * 2021-12-27 2023-11-03 敦煌研究院 Test cabin for simulating weather and rain environment erosion full-scale sample

Similar Documents

Publication Publication Date Title
GB1395194A (en) Heat pump type air conditioning systems
US3523575A (en) Air-conditioning system having heat storage reservoir
GB1508087A (en) Reverse cycle heat pump
GB1239997A (en) Cooling and heating apparatus for heat storage type
US4194368A (en) Combination split system air conditioner and compression cycle domestic hot water heating apparatus
US2795115A (en) Absorption refrigeration
GB1265229A (en)
GB1504395A (en) Environmental control systems
GB1061357A (en) Air conditioning system
GB1266998A (en)
EP3764026A1 (en) Heating and cooling system
GB1532481A (en) Heat pumps
EP4354048A1 (en) Heat pump system and control method therefor
US3421337A (en) Reverse cycle refrigeration system
GB1127586A (en) Air cooling and dehumidification systems
CN219416731U (en) Enthalpy difference laboratory of air conditioner
JPS5457346A (en) Heat pump type air conditioner
JPH024375Y2 (en)
GB1261104A (en) Air conditioning system and control including control method and means
CN201059817Y (en) Refrigeration system of air conditioner hot-water apparatus
JPS5595055A (en) Control circuit of air-conditioning system
GB897266A (en) Improvements in or relating to air conditioning systems
JP3159038B2 (en) Absorption heat pump
SU1539478A1 (en) Heat-pump installation for air-heating and cooling of room, and hot-water supply
Tan et al. Desuperheater heat recovery hot water heating systems in subtropics: Using water cooling towers to extract heat from ambient air as heat source/Discussion

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920627