ATE505694T1 - Steuerung eines kühlsystems - Google Patents

Steuerung eines kühlsystems

Info

Publication number
ATE505694T1
ATE505694T1 AT04776724T AT04776724T ATE505694T1 AT E505694 T1 ATE505694 T1 AT E505694T1 AT 04776724 T AT04776724 T AT 04776724T AT 04776724 T AT04776724 T AT 04776724T AT E505694 T1 ATE505694 T1 AT E505694T1
Authority
AT
Austria
Prior art keywords
refrigerant
parameter
refrigeration system
heat
threshold value
Prior art date
Application number
AT04776724T
Other languages
English (en)
Inventor
Yu Chen
Lili Zhang
Original Assignee
Carrier Corp
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 Corp filed Critical Carrier Corp
Application granted granted Critical
Publication of ATE505694T1 publication Critical patent/ATE505694T1/de

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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • 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
    • F25B1/00—Compression machines, plants or systems with non-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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/063—Feed forward expansion 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
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/13—Mass flow of refrigerants
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2102—Temperatures at the outlet of the gas cooler
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
AT04776724T 2003-06-26 2004-06-17 Steuerung eines kühlsystems ATE505694T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/607,283 US7000413B2 (en) 2003-06-26 2003-06-26 Control of refrigeration system to optimize coefficient of performance
PCT/US2004/019445 WO2005003651A2 (en) 2003-06-26 2004-06-17 Control of refrigeration system

Publications (1)

Publication Number Publication Date
ATE505694T1 true ATE505694T1 (de) 2011-04-15

Family

ID=33540230

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04776724T ATE505694T1 (de) 2003-06-26 2004-06-17 Steuerung eines kühlsystems

Country Status (10)

Country Link
US (1) US7000413B2 (de)
EP (2) EP2282142A1 (de)
JP (1) JP2007524060A (de)
KR (1) KR100755160B1 (de)
CN (1) CN1842682A (de)
AT (1) ATE505694T1 (de)
AU (1) AU2004254589B2 (de)
DE (1) DE602004032240D1 (de)
MX (1) MXPA05014104A (de)
WO (1) WO2005003651A2 (de)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6505475B1 (en) 1999-08-20 2003-01-14 Hudson Technologies Inc. Method and apparatus for measuring and improving efficiency in refrigeration systems
NL1026728C2 (nl) * 2004-07-26 2006-01-31 Antonie Bonte Verbetering van koelsystemen.
US20060059945A1 (en) * 2004-09-13 2006-03-23 Lalit Chordia Method for single-phase supercritical carbon dioxide cooling
US20060230773A1 (en) 2005-04-14 2006-10-19 Carrier Corporation Method for determining optimal coefficient of performance in a transcritical vapor compression system
WO2007027173A1 (en) * 2005-08-31 2007-03-08 Carrier Corporation Heat pump water heating system using variable speed compressor
DE102006000690A1 (de) * 2006-01-02 2007-07-05 Behr Gmbh & Co. Kg Vorrichtung und Verfahren zur Kontrolle eines Schmierstoffanteils in einem Kältemittel
US20070227168A1 (en) * 2006-04-04 2007-10-04 Simmons Bryan D Variable capacity air conditioning system
US20070227178A1 (en) * 2006-04-04 2007-10-04 Eduardo Leon Evaporator shroud and assembly for a direct current air conditioning system
US20070227177A1 (en) * 2006-04-04 2007-10-04 Eduardo Leon Air mover cover for a direct current air conditioning system
US20070227181A1 (en) * 2006-04-04 2007-10-04 Eduardo Leon Condenser shroud assembly for a direct current air conditioning system
US20080289350A1 (en) * 2006-11-13 2008-11-27 Hussmann Corporation Two stage transcritical refrigeration system
EP1950511A1 (de) * 2007-01-26 2008-07-30 Viessmann Werke GmbH & Co. KG Wärmepumpe
US20080223074A1 (en) * 2007-03-09 2008-09-18 Johnson Controls Technology Company Refrigeration system
US20090126381A1 (en) * 2007-11-15 2009-05-21 The Regents Of The University Of California Trigeneration system and method
JP4948374B2 (ja) * 2007-11-30 2012-06-06 三菱電機株式会社 冷凍サイクル装置
FR2928445B1 (fr) * 2008-03-06 2014-01-03 Valeo Systemes Thermiques Branche Thermique Habitacle Methode de commande d'un organe de detente que comprend une boucle de climatisation d'une installation de ventilation, de chauffage et/ou de climatisation d'un vehicule
US9989280B2 (en) * 2008-05-02 2018-06-05 Heatcraft Refrigeration Products Llc Cascade cooling system with intercycle cooling or additional vapor condensation cycle
US8631666B2 (en) 2008-08-07 2014-01-21 Hill Phoenix, Inc. Modular CO2 refrigeration system
DE102008038429A1 (de) * 2008-08-19 2010-02-25 Erwin Dietz Verfahren zum Betrieb einer Wärmepumpenanlage
WO2010039630A2 (en) 2008-10-01 2010-04-08 Carrier Corporation High-side pressure control for transcritical refrigeration system
JP5054180B2 (ja) * 2010-11-04 2012-10-24 サンデン株式会社 ヒートポンプ式暖房装置
US9541311B2 (en) 2010-11-17 2017-01-10 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US9657977B2 (en) 2010-11-17 2017-05-23 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US9664424B2 (en) 2010-11-17 2017-05-30 Hill Phoenix, Inc. Cascade refrigeration system with modular ammonia chiller units
US8646286B2 (en) * 2010-12-30 2014-02-11 Pdx Technologies Llc Refrigeration system controlled by refrigerant quality within evaporator
TWI583906B (zh) * 2011-12-29 2017-05-21 Chunghwa Telecom Co Ltd Real - time Analysis Method of Unit Operation Performance of Cold and Heat Energy
CN104797897A (zh) 2012-08-24 2015-07-22 开利公司 跨临界制冷剂蒸气压缩系统高侧压力控制
US9261542B1 (en) 2013-01-24 2016-02-16 Advantek Consulting Engineering, Inc. Energy efficiency ratio meter for direct expansion air-conditioners and heat pumps
US9958190B2 (en) * 2013-01-24 2018-05-01 Advantek Consulting Engineering, Inc. Optimizing energy efficiency ratio feedback control for direct expansion air-conditioners and heat pumps
US10302342B2 (en) 2013-03-14 2019-05-28 Rolls-Royce Corporation Charge control system for trans-critical vapor cycle systems
US10132529B2 (en) 2013-03-14 2018-11-20 Rolls-Royce Corporation Thermal management system controlling dynamic and steady state thermal loads
US9676484B2 (en) 2013-03-14 2017-06-13 Rolls-Royce North American Technologies, Inc. Adaptive trans-critical carbon dioxide cooling systems
EP2994385B1 (de) 2013-03-14 2019-07-03 Rolls-Royce Corporation Adaptive transkritische co2-kühlsysteme für luft- und raumfahrtanwendungen
US9718553B2 (en) 2013-03-14 2017-08-01 Rolls-Royce North America Technologies, Inc. Adaptive trans-critical CO2 cooling systems for aerospace applications
US10852041B2 (en) * 2013-09-07 2020-12-01 Trane International Inc. HVAC system with electronically controlled expansion valve
US9657969B2 (en) 2013-12-30 2017-05-23 Rolls-Royce Corporation Multi-evaporator trans-critical cooling systems
US9791188B2 (en) 2014-02-07 2017-10-17 Pdx Technologies Llc Refrigeration system with separate feedstreams to multiple evaporator zones
US11365921B2 (en) * 2015-09-18 2022-06-21 Carrier Corporation System and method of freeze protection for a chiller
EP3187796A1 (de) 2015-12-28 2017-07-05 Thermo King Corporation Kaskadenwärmeübertragungssystem
DE102016203688B4 (de) * 2016-03-07 2025-06-18 Te Connectivity Germany Gmbh Baugruppe mit Regeleinrichtung für einen Kompressor, und Kompressor, insbesondere in einem Automobil
CN107489607B (zh) * 2017-08-04 2020-06-30 广东美的暖通设备有限公司 空调系统及压缩机降温方法
IT201900021534A1 (it) * 2019-11-19 2021-05-19 Carel Ind Spa Apparato frigorifero monovalvola a co2 e metodo di regolazione dello stesso
EP4321815A4 (de) * 2021-04-09 2025-01-22 Toshiba Carrier Corporation Klimatisierungssystem, unterflurklimaanlage, steuerungsverfahren und programm
EP4155622A1 (de) * 2021-09-23 2023-03-29 Carel Industries S.p.A. Verfahren und vorrichtung zur regelung einer kälteanlage und entsprechende kälteanlage mit dieser vorrichtung
IT202100024482A1 (it) * 2021-09-23 2023-03-23 Carel Ind Spa Metodo e apparato di regolazione di un impianto frigorifero e relativo impianto frigorifero includente detto apparato
CN116734310B (zh) * 2023-06-01 2025-09-19 昆明理工大学 一种供暖用co2空气源热泵稳定跨临界循环方法及系统
CH721621A1 (de) * 2024-02-28 2025-09-15 E Jector Ag Andres Hegglin Verfahren zur Regelung transkritisch betriebener Gaskühler
CN119022497B (zh) * 2024-09-23 2026-01-23 奥克斯空调股份有限公司 一种超临界冷冻系统、冷冻系统控制方法及控制装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1544804A (en) * 1977-05-02 1979-04-25 Commercial Refrigeration Ltd Apparatus for and methods of transferring heat between bodies of fluid or other substance
US4432232A (en) * 1982-05-18 1984-02-21 The United States Of America As Represented By The United States Department Of Energy Device and method for measuring the coefficient of performance of a heat pump
US4510576A (en) * 1982-07-26 1985-04-09 Honeywell Inc. Specific coefficient of performance measuring device
SE439063B (sv) * 1983-06-02 1985-05-28 Henrik Sven Enstrom Forfarande och anordning for provning och prestandaovervakning vid vermepumpar och kylanleggningar
US4768346A (en) * 1987-08-26 1988-09-06 Honeywell Inc. Determining the coefficient of performance of a refrigeration system
US4885914A (en) * 1987-10-05 1989-12-12 Honeywell Inc. Coefficient of performance deviation meter for vapor compression type refrigeration systems
JP4277373B2 (ja) * 1998-08-24 2009-06-10 株式会社日本自動車部品総合研究所 ヒートポンプサイクル
US6505476B1 (en) * 1999-10-28 2003-01-14 Denso Corporation Refrigerant cycle system with super-critical refrigerant pressure
JP4258944B2 (ja) * 1999-10-28 2009-04-30 株式会社デンソー 超臨界蒸気圧縮機式冷凍サイクル
JP2001133058A (ja) 1999-11-05 2001-05-18 Matsushita Electric Ind Co Ltd 冷凍サイクル装置
JP2002130849A (ja) * 2000-10-30 2002-05-09 Calsonic Kansei Corp 冷房サイクルおよびその制御方法
US6701725B2 (en) * 2001-05-11 2004-03-09 Field Diagnostic Services, Inc. Estimating operating parameters of vapor compression cycle equipment
WO2003019085A1 (en) 2001-08-31 2003-03-06 Mærsk Container Industri A/S A vapour-compression-cycle device
US6568199B1 (en) * 2002-01-22 2003-05-27 Carrier Corporation Method for optimizing coefficient of performance in a transcritical vapor compression system

Also Published As

Publication number Publication date
MXPA05014104A (es) 2006-03-17
JP2007524060A (ja) 2007-08-23
AU2004254589B2 (en) 2007-10-11
CN1842682A (zh) 2006-10-04
EP2282142A1 (de) 2011-02-09
US7000413B2 (en) 2006-02-21
US20040261435A1 (en) 2004-12-30
WO2005003651A2 (en) 2005-01-13
AU2004254589A1 (en) 2005-01-13
KR20060024438A (ko) 2006-03-16
DE602004032240D1 (de) 2011-05-26
EP1646832A2 (de) 2006-04-19
KR100755160B1 (ko) 2007-09-04
EP1646832B1 (de) 2011-04-13
WO2005003651A3 (en) 2005-06-09

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