WO2012003202A3 - Evaporator refrigerant saturation demand defrost - Google Patents
Evaporator refrigerant saturation demand defrost Download PDFInfo
- Publication number
- WO2012003202A3 WO2012003202A3 PCT/US2011/042311 US2011042311W WO2012003202A3 WO 2012003202 A3 WO2012003202 A3 WO 2012003202A3 US 2011042311 W US2011042311 W US 2011042311W WO 2012003202 A3 WO2012003202 A3 WO 2012003202A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature differential
- heat exchanger
- defrost
- evaporator heat
- saturation temperature
- Prior art date
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/006—Defroster control with electronic control circuits
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F25B2700/2117—Temperatures of an evaporator
-
- 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
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
Landscapes
- 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)
- Defrosting Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11730522.7A EP2588819B1 (en) | 2010-07-01 | 2011-06-29 | Evaporator refrigerant saturation demand defrost |
ES11730522T ES2762238T3 (en) | 2010-07-01 | 2011-06-29 | Defrost on demand with evaporator refrigerant saturation |
CN201180042426.8A CN103069230B (en) | 2010-07-01 | 2011-06-29 | Evaporator refrigerant saturation defrosts immediately |
US13/704,314 US20130086929A1 (en) | 2010-07-01 | 2011-06-29 | Evaporator refrigerant saturation demand defrost |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36065110P | 2010-07-01 | 2010-07-01 | |
US61/360,651 | 2010-07-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012003202A2 WO2012003202A2 (en) | 2012-01-05 |
WO2012003202A3 true WO2012003202A3 (en) | 2012-08-16 |
Family
ID=44628120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2011/042311 WO2012003202A2 (en) | 2010-07-01 | 2011-06-29 | Evaporator refrigerant saturation demand defrost |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130086929A1 (en) |
EP (1) | EP2588819B1 (en) |
CN (1) | CN103069230B (en) |
ES (1) | ES2762238T3 (en) |
WO (1) | WO2012003202A2 (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9995515B2 (en) | 2012-07-31 | 2018-06-12 | Carrier Corporation | Frozen evaporator coil detection and defrost initiation |
EP2717002B1 (en) * | 2012-10-08 | 2019-01-02 | Emerson Climate Technologies GmbH | Method for determining thaw times |
WO2014070292A1 (en) * | 2012-10-30 | 2014-05-08 | Carrier Corporation | Drying a refrigerated cargo box following wash out prior to loading |
CN104515255A (en) * | 2013-09-30 | 2015-04-15 | 郑州科林车用空调有限公司 | Method and system of passenger car air conditioner for regulating temperature through intelligent combined control on temperature and humidity |
US10254027B2 (en) * | 2014-05-02 | 2019-04-09 | Thermo King Corporation | Method and system for controlling operation of evaporator fans in a transport refrigeration system |
US20150343881A1 (en) * | 2014-05-27 | 2015-12-03 | Alliance For Sustainable Energy, Llc | Evaporative cooling cycling using water condensate formed in a vapor-compression a/c system evaporator |
EP3183515B1 (en) * | 2014-08-22 | 2024-04-10 | Thermo King LLC | Method and system for defrosting a heat exchanger |
US10935329B2 (en) | 2015-01-19 | 2021-03-02 | Hussmann Corporation | Heat exchanger with heater insert |
EP3311085B1 (en) | 2015-06-19 | 2022-02-09 | Carrier Corporation | Transport refrigeration unit and method of operating the same |
US10168067B2 (en) * | 2015-09-22 | 2019-01-01 | Lennox Industries Inc. | Detecting and handling a blocked condition in the coil |
EP3362333B1 (en) | 2015-10-16 | 2020-04-22 | Carrier Corporation | Flexible cooling system for vehicles |
JP6447742B2 (en) * | 2015-10-27 | 2019-01-09 | 株式会社デンソー | Refrigeration cycle equipment |
WO2017134807A1 (en) * | 2016-02-05 | 2017-08-10 | 三菱電機株式会社 | Air conditioner |
CN108778803B (en) | 2016-03-07 | 2022-07-05 | 开利公司 | Return air inlet grille deicing method |
US20170292770A1 (en) * | 2016-04-07 | 2017-10-12 | Hussmann Corporation | Refrigeration system with fluid defrost |
US10759326B2 (en) | 2016-05-27 | 2020-09-01 | Carrier Corporation | Method for determining reduced airflow in transport refrigeration system |
CN106839258A (en) * | 2016-12-06 | 2017-06-13 | 珠海格力电器股份有限公司 | Air cooler and defrosting control device and method thereof |
WO2019199386A1 (en) | 2018-04-13 | 2019-10-17 | Carrier Corporation | Method of defrosting a refrigeration system |
US11493260B1 (en) | 2018-05-31 | 2022-11-08 | Thermo Fisher Scientific (Asheville) Llc | Freezers and operating methods using adaptive defrost |
ES2894502T3 (en) | 2018-06-22 | 2022-02-14 | Danfoss As | A procedure to finish defrosting an evaporator |
EP3587962B1 (en) | 2018-06-22 | 2020-12-30 | Danfoss A/S | A method for terminating defrosting of an evaporator by use of air temperature measurements |
EP3990845B1 (en) | 2019-06-26 | 2024-04-17 | Carrier Corporation | Transportation refrigeration unit with adaptive defrost |
CN112594983A (en) * | 2020-12-08 | 2021-04-02 | 格力电器(合肥)有限公司 | Refined forward circulating deicing system of air conditioner and control method |
EP4148348A1 (en) * | 2021-09-09 | 2023-03-15 | SHR GmbH | Method and apparatus for controlling the cleaning and cooling process of heat exchangers |
CN116263263A (en) * | 2021-12-13 | 2023-06-16 | 开利公司 | Method for changing defrosting trigger of heat pump |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3333907A1 (en) * | 1983-09-20 | 1985-04-04 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | METHOD AND DEVICE FOR DEFROSTING HEAT PUMPS |
DE3441912A1 (en) * | 1984-11-16 | 1986-05-28 | Fichtel & Sachs Ag, 8720 Schweinfurt | Method for automatically defrosting an evaporator, acted upon by air, of a heat pump |
DE3539817A1 (en) * | 1985-11-09 | 1987-05-14 | Licentia Gmbh | Method for metrologically determining, displaying and/or evaluating the icing occurring on the cooling plates of an air cooler |
EP0501387A2 (en) * | 1991-02-25 | 1992-09-02 | KÜBA KÄLTETECHNIK GmbH | Method and device for performance optimising and defrosting control of refrigerant evaporators |
US6205800B1 (en) * | 1999-05-12 | 2001-03-27 | Carrier Corporation | Microprocessor controlled demand defrost for a cooled enclosure |
DE10311343A1 (en) * | 2003-03-14 | 2004-09-23 | Linde Kältetechnik GmbH & Co. KG | Defrosting method for e.g. evaporator, involves initiating defrosting when temperature at middle of evaporator is lower than critical temperature or temperature difference between middle and inlet of evaporator is lower than set value |
EP2157380A1 (en) * | 2008-01-21 | 2010-02-24 | Mitsubishi Electric Corporation | Heat pump apparatus and air conditioner or water heater having the heat pump apparatus mounted thereon |
EP2366968A2 (en) * | 2010-03-17 | 2011-09-21 | Wolf GmbH | Method and device for thawing an evaporator of a heat pump device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4142374A (en) * | 1977-09-16 | 1979-03-06 | Wylain, Inc. | Demand defrost time clock control circuit |
US5381669A (en) * | 1993-07-21 | 1995-01-17 | Copeland Corporation | Overcharge-undercharge diagnostic system for air conditioner controller |
US5440890A (en) * | 1993-12-10 | 1995-08-15 | Copeland Corporation | Blocked fan detection system for heat pump |
US6223546B1 (en) | 1999-04-21 | 2001-05-01 | Robert A. Chopko | Electrically powered transport refrigeration unit |
US6334321B1 (en) * | 2000-03-15 | 2002-01-01 | Carrier Corporation | Method and system for defrost control on reversible heat pumps |
US6318095B1 (en) | 2000-10-06 | 2001-11-20 | Carrier Corporation | Method and system for demand defrost control on reversible heat pumps |
US8136363B2 (en) * | 2005-04-15 | 2012-03-20 | Thermo King Corporation | Temperature control system and method of operating the same |
JP5063347B2 (en) * | 2005-07-26 | 2012-10-31 | 三菱電機株式会社 | Refrigeration air conditioner |
US7752853B2 (en) * | 2005-10-21 | 2010-07-13 | Emerson Retail Services, Inc. | Monitoring refrigerant in a refrigeration system |
WO2008094158A1 (en) * | 2007-02-02 | 2008-08-07 | Carrier Corporation | Method for operating transport refrigeration unit with remote evaporator |
JP4642100B2 (en) * | 2008-09-01 | 2011-03-02 | 三菱電機株式会社 | Heat pump equipment |
-
2011
- 2011-06-29 EP EP11730522.7A patent/EP2588819B1/en active Active
- 2011-06-29 WO PCT/US2011/042311 patent/WO2012003202A2/en active Application Filing
- 2011-06-29 US US13/704,314 patent/US20130086929A1/en not_active Abandoned
- 2011-06-29 ES ES11730522T patent/ES2762238T3/en active Active
- 2011-06-29 CN CN201180042426.8A patent/CN103069230B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3333907A1 (en) * | 1983-09-20 | 1985-04-04 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | METHOD AND DEVICE FOR DEFROSTING HEAT PUMPS |
DE3441912A1 (en) * | 1984-11-16 | 1986-05-28 | Fichtel & Sachs Ag, 8720 Schweinfurt | Method for automatically defrosting an evaporator, acted upon by air, of a heat pump |
DE3539817A1 (en) * | 1985-11-09 | 1987-05-14 | Licentia Gmbh | Method for metrologically determining, displaying and/or evaluating the icing occurring on the cooling plates of an air cooler |
EP0501387A2 (en) * | 1991-02-25 | 1992-09-02 | KÜBA KÄLTETECHNIK GmbH | Method and device for performance optimising and defrosting control of refrigerant evaporators |
US6205800B1 (en) * | 1999-05-12 | 2001-03-27 | Carrier Corporation | Microprocessor controlled demand defrost for a cooled enclosure |
DE10311343A1 (en) * | 2003-03-14 | 2004-09-23 | Linde Kältetechnik GmbH & Co. KG | Defrosting method for e.g. evaporator, involves initiating defrosting when temperature at middle of evaporator is lower than critical temperature or temperature difference between middle and inlet of evaporator is lower than set value |
EP2157380A1 (en) * | 2008-01-21 | 2010-02-24 | Mitsubishi Electric Corporation | Heat pump apparatus and air conditioner or water heater having the heat pump apparatus mounted thereon |
EP2366968A2 (en) * | 2010-03-17 | 2011-09-21 | Wolf GmbH | Method and device for thawing an evaporator of a heat pump device |
Also Published As
Publication number | Publication date |
---|---|
WO2012003202A2 (en) | 2012-01-05 |
CN103069230A (en) | 2013-04-24 |
EP2588819A2 (en) | 2013-05-08 |
ES2762238T3 (en) | 2020-05-22 |
CN103069230B (en) | 2017-08-04 |
EP2588819B1 (en) | 2019-12-11 |
US20130086929A1 (en) | 2013-04-11 |
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