CA2390682A1 - Enthalpy pump - Google Patents

Enthalpy pump Download PDF

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Publication number
CA2390682A1
CA2390682A1 CA002390682A CA2390682A CA2390682A1 CA 2390682 A1 CA2390682 A1 CA 2390682A1 CA 002390682 A CA002390682 A CA 002390682A CA 2390682 A CA2390682 A CA 2390682A CA 2390682 A1 CA2390682 A1 CA 2390682A1
Authority
CA
Canada
Prior art keywords
air stream
liquid desiccant
transfer portion
enthalpy pump
container
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.)
Granted
Application number
CA002390682A
Other languages
French (fr)
Other versions
CA2390682C (en
Inventor
David A. Thompson
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.)
Nortek Air Solutions Canada Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2390682A1 publication Critical patent/CA2390682A1/en
Application granted granted Critical
Publication of CA2390682C publication Critical patent/CA2390682C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1417—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/263—Drying gases or vapours by absorption
    • 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
    • F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • 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
    • F24F2003/1435—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 comprising semi-permeable membrane
    • 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
    • F24F2003/144—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 by dehumidification only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1004—Bearings or driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F24F2203/1036—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1068—Rotary wheel comprising one rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1084—Rotary wheel comprising two flow rotor segments

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Central Air Conditioning (AREA)
  • Drying Of Gases (AREA)

Abstract

An enthalpy pump (10) for altering the humidity level of an air stream (12, 14). The enthalpy pump comprises a container having a transfer portion (38) disposed in a first air stream (12), with a liquid desiccant contained in the transfer portion (38). The transer portion (38) is permeable to water vapor and impermeable to the liquid desiccant to thereby retain the liquid desiccant within the container while permitting exposure of the liquid desiccant to the first air stream. The transfer portion (38) is also adapted to move the liquid desiccant into and out of the first air stream whereby the latent and/or sensible energy of the first air stream can be altered.
CA002390682A 1999-11-05 2000-02-04 Enthalpy pump Expired - Lifetime CA2390682C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16373199P 1999-11-05 1999-11-05
US60/163,731 1999-11-05
PCT/US2000/002956 WO2001035039A1 (en) 1999-11-05 2000-02-04 Enthalpy pump

Publications (2)

Publication Number Publication Date
CA2390682A1 true CA2390682A1 (en) 2001-05-17
CA2390682C CA2390682C (en) 2007-05-01

Family

ID=22591327

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002390682A Expired - Lifetime CA2390682C (en) 1999-11-05 2000-02-04 Enthalpy pump

Country Status (4)

Country Link
EP (1) EP1232368A4 (en)
AU (1) AU2870900A (en)
CA (1) CA2390682C (en)
WO (1) WO2001035039A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103069246B (en) 2010-06-24 2016-02-03 北狄空气应对加拿大公司 Liquid-to-air membrane energy exchanger
US8915092B2 (en) 2011-01-19 2014-12-23 Venmar Ces, Inc. Heat pump system having a pre-processing module
US9810439B2 (en) 2011-09-02 2017-11-07 Nortek Air Solutions Canada, Inc. Energy exchange system for conditioning air in an enclosed structure
US9816760B2 (en) 2012-08-24 2017-11-14 Nortek Air Solutions Canada, Inc. Liquid panel assembly
US9772124B2 (en) 2013-03-13 2017-09-26 Nortek Air Solutions Canada, Inc. Heat pump defrosting system and method
US9109808B2 (en) 2013-03-13 2015-08-18 Venmar Ces, Inc. Variable desiccant control energy exchange system and method
US10352628B2 (en) 2013-03-14 2019-07-16 Nortek Air Solutions Canada, Inc. Membrane-integrated energy exchange assembly
US10584884B2 (en) 2013-03-15 2020-03-10 Nortek Air Solutions Canada, Inc. Control system and method for a liquid desiccant air delivery system
US11408681B2 (en) 2013-03-15 2022-08-09 Nortek Air Solations Canada, Iac. Evaporative cooling system with liquid-to-air membrane energy exchanger
DK3183051T3 (en) 2014-08-19 2020-06-02 Nortek Air Solutions Canada Inc LIQUID-TO-LUFTMEMBRANENERGIVEKSLERE
US11092349B2 (en) 2015-05-15 2021-08-17 Nortek Air Solutions Canada, Inc. Systems and methods for providing cooling to a heat load
CN107850335B (en) 2015-05-15 2021-02-19 北狄空气应对加拿大公司 Liquid cooling using liquid-gas membrane energy exchangers
EP3314188B1 (en) 2015-06-26 2021-05-12 Nortek Air Solutions Canada, Inc. Three-fluid liquid to air membrane energy exchanger
SG10201913897RA (en) 2016-03-08 2020-03-30 Nortek Air Solutions Canada Inc Systems and methods for providing cooling to a heat load
US11892193B2 (en) 2017-04-18 2024-02-06 Nortek Air Solutions Canada, Inc. Desiccant enhanced evaporative cooling systems and methods

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723417A (en) * 1985-08-05 1988-02-09 Camp Dresser And Mckee Inc. Dehumidification apparatus
US4900448A (en) * 1988-03-29 1990-02-13 Honeywell Inc. Membrane dehumidification
JP2756989B2 (en) * 1988-11-22 1998-05-25 株式会社小松製作所 Humidity adjustment device
US4939906A (en) * 1989-06-09 1990-07-10 Gas Research Institute Multi-stage boiler/regenerator for liquid desiccant dehumidifiers
JPH05146627A (en) * 1991-12-02 1993-06-15 Mitsubishi Electric Corp Absorption type humidity controller
JPH078744A (en) * 1993-06-18 1995-01-13 Daikin Ind Ltd Dehumidifier
US5528905A (en) * 1994-03-25 1996-06-25 Essex Invention S.A. Contactor, particularly a vapour exchanger for the control of the air hygrometric content, and a device for air handling
DE19545335C2 (en) * 1995-12-05 2001-04-12 Dornier Gmbh Method and device for continuously dehumidifying a gas stream
JPH1151421A (en) * 1997-08-05 1999-02-26 Daikin Ind Ltd Outer air treating unit

Also Published As

Publication number Publication date
EP1232368A4 (en) 2003-01-02
AU2870900A (en) 2001-06-06
WO2001035039A1 (en) 2001-05-17
EP1232368A1 (en) 2002-08-21
CA2390682C (en) 2007-05-01

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20200204

MKEX Expiry

Effective date: 20200204