WO2010039385A3 - Start-up for refrigerant system with hot gas reheat - Google Patents

Start-up for refrigerant system with hot gas reheat Download PDF

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Publication number
WO2010039385A3
WO2010039385A3 PCT/US2009/055694 US2009055694W WO2010039385A3 WO 2010039385 A3 WO2010039385 A3 WO 2010039385A3 US 2009055694 W US2009055694 W US 2009055694W WO 2010039385 A3 WO2010039385 A3 WO 2010039385A3
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
reheat
refrigerant system
heat exchanger
control
Prior art date
Application number
PCT/US2009/055694
Other languages
French (fr)
Other versions
WO2010039385A2 (en
Inventor
Michael F. Taras
Original Assignee
Carrier Corporation
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 Carrier Corporation filed Critical Carrier Corporation
Priority to EP09818193.6A priority Critical patent/EP2334995A4/en
Priority to US13/061,616 priority patent/US20110146306A1/en
Publication of WO2010039385A2 publication Critical patent/WO2010039385A2/en
Publication of WO2010039385A3 publication Critical patent/WO2010039385A3/en

Links

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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • 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
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • F25B2313/02333—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during dehumidification
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel

Abstract

A refrigerant system has a compressor for compressing and delivering refrigerant to a heat rejecting heat exchanger. Refrigerant from the heat rejecting heat exchanger passes through an expansion device, and then to an evaporator. A reheat circuit includes a reheat valve for selectively tapping refrigerant from a location downstream of the compressor and upstream of the condenser. The reheat refrigerant passes through a reheat heat exchanger, the reheat heat exchanger being positioned to be in a path of air having passed over the evaporator, and delivered into an indoor environment to be conditioned. A control for the refrigerant system is operable to receive inputs from the indoor environment to be conditioned, and to control the several components in the refrigerant system, the control being operable to determine a request for dehumidification provided without any request for significant change in the temperature of the air being delivered into the indoor environment to be conditioned, but said control starting operation of the refrigerant system by enabling cooling mode of operation initially and at least for a short period of time.
PCT/US2009/055694 2008-10-02 2009-09-02 Start-up for refrigerant system with hot gas reheat WO2010039385A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09818193.6A EP2334995A4 (en) 2008-10-02 2009-09-02 Start-up for refrigerant system with hot gas reheat
US13/061,616 US20110146306A1 (en) 2008-10-02 2009-09-02 Start-up for refrigerant system with hot gas reheat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10202508P 2008-10-02 2008-10-02
US61/102,025 2008-10-02

Publications (2)

Publication Number Publication Date
WO2010039385A2 WO2010039385A2 (en) 2010-04-08
WO2010039385A3 true WO2010039385A3 (en) 2010-06-24

Family

ID=42074088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/055694 WO2010039385A2 (en) 2008-10-02 2009-09-02 Start-up for refrigerant system with hot gas reheat

Country Status (3)

Country Link
US (1) US20110146306A1 (en)
EP (1) EP2334995A4 (en)
WO (1) WO2010039385A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5971907B2 (en) * 2011-09-15 2016-08-17 鹿島建設株式会社 Air conditioner using direct expansion coil
US9726387B2 (en) * 2013-07-02 2017-08-08 Johnson Controls Technology Company Hot gas reheat modulation
CN105115181B (en) * 2015-07-21 2018-06-26 上海海立电器有限公司 A kind of air-conditioning system
CN106885387A (en) * 2015-12-16 2017-06-23 上海日立电器有限公司 A kind of air-conditioning system
CN106885403B (en) * 2015-12-16 2018-11-02 上海海立电器有限公司 The air-conditioning system of sensible heat latent heat separation control
CN106885402B (en) * 2015-12-16 2019-01-29 上海海立电器有限公司 The air-conditioning system of sensible heat latent heat separation control
CN106885388B (en) * 2015-12-16 2018-07-27 上海海立电器有限公司 A kind of air-conditioning system
US11221151B2 (en) 2019-01-15 2022-01-11 Johnson Controls Technology Company Hot gas reheat systems and methods
CN110486982A (en) * 2019-08-22 2019-11-22 珠海格力电器股份有限公司 Air-conditioning system and its control method
CN113669939A (en) * 2021-08-13 2021-11-19 珠海格力电器股份有限公司 Air conditioning system and control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002106913A (en) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd Method for controlling automatic operation of air conditioner
US20050115254A1 (en) * 2002-11-08 2005-06-02 York International Corporation System and method for using hot gas reheat for humidity control
US6941770B1 (en) * 2004-07-15 2005-09-13 Carrier Corporation Hybrid reheat system with performance enhancement
JP2007155305A (en) * 2005-12-09 2007-06-21 Hitachi Appliances Inc Control method of air conditioner

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US5752389A (en) * 1996-10-15 1998-05-19 Harper; Thomas H. Cooling and dehumidifying system using refrigeration reheat with leaving air temperature control
US6559491B2 (en) * 2001-02-09 2003-05-06 Micron Technology, Inc. Folded bit line DRAM with ultra thin body transistors
US6644049B2 (en) * 2002-04-16 2003-11-11 Lennox Manufacturing Inc. Space conditioning system having multi-stage cooling and dehumidification capability
US6705093B1 (en) * 2002-09-27 2004-03-16 Carrier Corporation Humidity control method and scheme for vapor compression system with multiple circuits
US7726140B2 (en) * 2002-11-08 2010-06-01 York International Corporation System and method for using hot gas re-heat for humidity control
US7231774B2 (en) * 2004-04-28 2007-06-19 Carrier Corporation Multi-circuit refrigerant cycle with dehumidification improvements
US20060010907A1 (en) * 2004-07-15 2006-01-19 Taras Michael F Refrigerant system with tandem compressors and reheat function
US7059151B2 (en) * 2004-07-15 2006-06-13 Carrier Corporation Refrigerant systems with reheat and economizer
US6986264B1 (en) * 2004-07-15 2006-01-17 Carrier Corporation Economized dehumidification system
US7219505B2 (en) * 2004-10-22 2007-05-22 York International Corporation Control stability system for moist air dehumidification units and method of operation
US7275384B2 (en) * 2004-09-16 2007-10-02 Carrier Corporation Heat pump with reheat circuit
US7290399B2 (en) * 2004-09-16 2007-11-06 Carrier Corporation Multi-circuit dehumidification heat pump system
US7272948B2 (en) * 2004-09-16 2007-09-25 Carrier Corporation Heat pump with reheat and economizer functions
US7287394B2 (en) * 2004-09-16 2007-10-30 Carrier Corporation Refrigerant heat pump with reheat circuit
US7257957B2 (en) * 2004-10-12 2007-08-21 Carrier Corporation Utilization of bypass refrigerant to provide reheat and dehumidification function in refrigerant system
US7155920B2 (en) * 2004-10-18 2007-01-02 Carrier Corporation Refrigerant cycle with tandem compressors and multiple condensers
US7574871B2 (en) * 2004-10-27 2009-08-18 Research Products Corporation Systems and methods for whole-house dehumidification based on dew point measurements
US7325414B2 (en) * 2004-10-28 2008-02-05 Carrier Corporation Hybrid tandem compressor system with economizer circuit and reheat function for multi-level cooling
US7469555B2 (en) * 2004-11-01 2008-12-30 Carrier Corporation Multiple condenser reheat system with tandem compressors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002106913A (en) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd Method for controlling automatic operation of air conditioner
US20050115254A1 (en) * 2002-11-08 2005-06-02 York International Corporation System and method for using hot gas reheat for humidity control
US6941770B1 (en) * 2004-07-15 2005-09-13 Carrier Corporation Hybrid reheat system with performance enhancement
JP2007155305A (en) * 2005-12-09 2007-06-21 Hitachi Appliances Inc Control method of air conditioner

Also Published As

Publication number Publication date
EP2334995A2 (en) 2011-06-22
EP2334995A4 (en) 2014-04-02
US20110146306A1 (en) 2011-06-23
WO2010039385A2 (en) 2010-04-08

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