WO2009009873A8 - Solar water desalination unit with superheater and heat exchangers - Google Patents

Solar water desalination unit with superheater and heat exchangers Download PDF

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Publication number
WO2009009873A8
WO2009009873A8 PCT/CA2008/001270 CA2008001270W WO2009009873A8 WO 2009009873 A8 WO2009009873 A8 WO 2009009873A8 CA 2008001270 W CA2008001270 W CA 2008001270W WO 2009009873 A8 WO2009009873 A8 WO 2009009873A8
Authority
WO
WIPO (PCT)
Prior art keywords
water
superheater
feedwater tank
hot feedwater
desalination unit
Prior art date
Application number
PCT/CA2008/001270
Other languages
French (fr)
Other versions
WO2009009873A1 (en
Inventor
David Holroyd
Original Assignee
David Holroyd
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 David Holroyd filed Critical David Holroyd
Publication of WO2009009873A1 publication Critical patent/WO2009009873A1/en
Publication of WO2009009873A8 publication Critical patent/WO2009009873A8/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0029—Use of radiation
    • B01D1/0035—Solar energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

A solar water desalination unit using a superheater to increase efficiency. Water vapor which comes out of the main evaporation chamber travels through a superheater, increasing its temperature by a few degrees. Then it goes into a condensing heat exchanger where it gives up its latent heat of vaporization to the water in the hot feedwater tank. The main evaporation chamber is fed from this hot feedwater tank. As the solar energy influx increases the temperatures throughout the system increase until the water at the top of the hot feedwater tank begins to boil. At that point the system becomes self-sustaining and continues with only nominal additional solar heat input until the water in the hot feedwater tank becomes saturated with salt and has to be dumped into a secondary evaporator. Use of the superheater allows steam at a few degrees above the boiling point to give up all of its latent heat to water that is near or at the boiling point 100 degrees C.
PCT/CA2008/001270 2007-07-18 2008-06-30 Solar water desalination unit with superheater and heat exchangers WO2009009873A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95977407P 2007-07-18 2007-07-18
US60/959,774 2007-07-18

Publications (2)

Publication Number Publication Date
WO2009009873A1 WO2009009873A1 (en) 2009-01-22
WO2009009873A8 true WO2009009873A8 (en) 2009-07-30

Family

ID=40259243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2008/001270 WO2009009873A1 (en) 2007-07-18 2008-06-30 Solar water desalination unit with superheater and heat exchangers

Country Status (1)

Country Link
WO (1) WO2009009873A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110194497A (en) * 2019-05-24 2019-09-03 西南交通大学 Desalination plant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2472033A (en) * 2009-07-22 2011-01-26 Algoil Ltd Greenhouse system utilising recovered heat
CN104326519B (en) * 2013-07-23 2016-12-28 朱宝泉 Evaporating condensation type sea water desalinating unit
US11639297B1 (en) * 2022-10-12 2023-05-02 United Arab Emirates University Direct solar desalination system with enhanced desalination

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1062845B (en) * 1976-05-31 1985-02-11 Fiat Spa BRACKET WATER DESALINATION SYSTEM BY MEANS OF SOLAR ENERGY
US4338922A (en) * 1977-07-15 1982-07-13 Veda, Incorporated Solar powered chemical processing method and apparatus
JPS5581777A (en) * 1978-12-15 1980-06-20 Kajima Corp Solar-energy-utilizing desalter
US4363703A (en) * 1980-11-06 1982-12-14 Institute Of Gas Technology Thermal gradient humidification-dehumidification desalination system
JPS57174188A (en) * 1981-04-18 1982-10-26 Mitsui Eng & Shipbuild Co Ltd Water making device
GB2104398B (en) * 1981-07-30 1985-01-03 Keith Bernard Wakelam Re-circulating solar desalinator
US4749447A (en) * 1983-05-06 1988-06-07 Lew Hyok S Evacuated evaporation-pressurized condensation solar still
JPH11156341A (en) * 1997-11-26 1999-06-15 Top Ecology:Kk Solar thermal distillator
GB2441827A (en) * 2006-09-15 2008-03-19 William Alexander Courtney Desalination plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110194497A (en) * 2019-05-24 2019-09-03 西南交通大学 Desalination plant

Also Published As

Publication number Publication date
WO2009009873A1 (en) 2009-01-22

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