EP1938026A4 - System reheat control by pulse width modulation - Google Patents

System reheat control by pulse width modulation

Info

Publication number
EP1938026A4
EP1938026A4 EP05792297A EP05792297A EP1938026A4 EP 1938026 A4 EP1938026 A4 EP 1938026A4 EP 05792297 A EP05792297 A EP 05792297A EP 05792297 A EP05792297 A EP 05792297A EP 1938026 A4 EP1938026 A4 EP 1938026A4
Authority
EP
European Patent Office
Prior art keywords
pulse width
width modulation
reheat control
system reheat
control
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Withdrawn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
EP05792297A
Other languages
German (de)
French (fr)
Other versions
EP1938026A1 (en
Inventor
Michael F Taras
Alexander Lifson
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.)
Carrier Corp
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
Publication of EP1938026A1 publication Critical patent/EP1938026A1/en
Publication of EP1938026A4 publication Critical patent/EP1938026A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0403—Refrigeration circuit bypassing means for 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2521—On-off valves controlled by pulse signals
EP05792297A 2005-08-23 2005-08-23 System reheat control by pulse width modulation Withdrawn EP1938026A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/030603 WO2007024237A1 (en) 2005-08-23 2005-08-23 System reheat control by pulse width modulation

Publications (2)

Publication Number Publication Date
EP1938026A1 EP1938026A1 (en) 2008-07-02
EP1938026A4 true EP1938026A4 (en) 2011-12-14

Family

ID=37771893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05792297A Withdrawn EP1938026A4 (en) 2005-08-23 2005-08-23 System reheat control by pulse width modulation

Country Status (5)

Country Link
US (1) US20080196426A1 (en)
EP (1) EP1938026A4 (en)
CN (1) CN101248319A (en)
CA (1) CA2616279A1 (en)
WO (1) WO2007024237A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2318997B1 (en) * 2006-10-17 2010-03-01 Merak Sistemas Integrados De Climatizacion, S.A. AIR-CONDITIONING SYSTEM.
CN102066853B (en) * 2008-06-13 2013-07-31 开利公司 Start-up procedure for refrigerant systems having microchannel condenser and reheat cycle
CN102997517B (en) * 2011-09-09 2015-08-12 珠海格力电器股份有限公司 Constant-temperature dehumidification system of air conditioner
JP2015129625A (en) * 2013-12-02 2015-07-16 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Cooling device
CN103791652B (en) * 2014-01-13 2016-01-20 浙江理工大学 A kind of two temperature-heat-source heat pump
US10955149B2 (en) 2016-07-25 2021-03-23 Carrier Corporation Dehumidification system for heat pump
CN106500378A (en) * 2016-09-29 2017-03-15 同济大学 Based on the efficient air conditioning unit and control method that high temperature refrigerant mixes again heat pattern

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837798A (en) * 1928-09-19 1931-12-22 York Ice Machinery Corp Apparatus for conditioning air
US2515842A (en) * 1947-07-16 1950-07-18 Carrier Corp System for providing reheat in bus air conditioning
US2844946A (en) * 1955-03-16 1958-07-29 Donald A Bauer Air conditioning device with reheat means
US3738117A (en) * 1970-10-06 1973-06-12 Friedmann Kg Air conditioner for railroad vehicles
US4548047A (en) * 1981-11-11 1985-10-22 Hitachi, Ltd. Expansion valve
US5305822A (en) * 1992-06-02 1994-04-26 Kabushiki Kaisha Toshiba Air conditioning apparatus having a dehumidifying operation function
JPH06137712A (en) * 1992-10-27 1994-05-20 Toshiba Corp Air conditioner
JP2002221280A (en) * 2001-01-26 2002-08-09 Saginomiya Seisakusho Inc Device for driving fluid control valve
US6672087B1 (en) * 2002-10-30 2004-01-06 Carrier Corporation Humidity and temperature control in vapor compression system
US20040089015A1 (en) * 2002-11-08 2004-05-13 York International Corporation System and method for using hot gas reheat for humidity control
US6826921B1 (en) * 2003-07-03 2004-12-07 Lennox Industries, Inc. Air conditioning system with variable condenser reheat for enhanced dehumidification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047557A (en) * 1995-06-07 2000-04-11 Copeland Corporation Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
US5651258A (en) * 1995-10-27 1997-07-29 Heat Controller, Inc. Air conditioning apparatus having subcooling and hot vapor reheat and associated methods
FR2756913B1 (en) * 1996-12-09 1999-02-12 Valeo Climatisation REFRIGERANT FLUID CIRCUIT COMPRISING AN AIR CONDITIONING LOOP AND A HEATING LOOP, PARTICULARLY FOR A MOTOR VEHICLE
JP3781147B2 (en) * 1997-04-09 2006-05-31 カルソニックカンセイ株式会社 Heat pump type automotive air conditioner
US6055818A (en) * 1997-08-05 2000-05-02 Desert Aire Corp. Method for controlling refrigerant based air conditioner leaving air temperature
US6047556A (en) * 1997-12-08 2000-04-11 Carrier Corporation Pulsed flow for capacity control
US6672090B1 (en) * 2002-07-15 2004-01-06 Copeland Corporation Refrigeration control
US7219505B2 (en) * 2004-10-22 2007-05-22 York International Corporation Control stability system for moist air dehumidification units and method of operation

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837798A (en) * 1928-09-19 1931-12-22 York Ice Machinery Corp Apparatus for conditioning air
US2515842A (en) * 1947-07-16 1950-07-18 Carrier Corp System for providing reheat in bus air conditioning
US2844946A (en) * 1955-03-16 1958-07-29 Donald A Bauer Air conditioning device with reheat means
US3738117A (en) * 1970-10-06 1973-06-12 Friedmann Kg Air conditioner for railroad vehicles
US4548047A (en) * 1981-11-11 1985-10-22 Hitachi, Ltd. Expansion valve
US5305822A (en) * 1992-06-02 1994-04-26 Kabushiki Kaisha Toshiba Air conditioning apparatus having a dehumidifying operation function
JPH06137712A (en) * 1992-10-27 1994-05-20 Toshiba Corp Air conditioner
JP2002221280A (en) * 2001-01-26 2002-08-09 Saginomiya Seisakusho Inc Device for driving fluid control valve
US6672087B1 (en) * 2002-10-30 2004-01-06 Carrier Corporation Humidity and temperature control in vapor compression system
US20040089015A1 (en) * 2002-11-08 2004-05-13 York International Corporation System and method for using hot gas reheat for humidity control
US6826921B1 (en) * 2003-07-03 2004-12-07 Lennox Industries, Inc. Air conditioning system with variable condenser reheat for enhanced dehumidification

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007024237A1 *

Also Published As

Publication number Publication date
CA2616279A1 (en) 2007-03-01
WO2007024237A1 (en) 2007-03-01
CN101248319A (en) 2008-08-20
US20080196426A1 (en) 2008-08-21
EP1938026A1 (en) 2008-07-02

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Legal Events

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Effective date: 20111115

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 29/00 20060101AFI20111104BHEP

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Ipc: F24F 3/153 20060101ALI20111104BHEP

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Effective date: 20120613