WO2007106930A1 - Système de vaporisation de liquides ou de gaz liquéfiés - Google Patents

Système de vaporisation de liquides ou de gaz liquéfiés Download PDF

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Publication number
WO2007106930A1
WO2007106930A1 PCT/AU2007/000330 AU2007000330W WO2007106930A1 WO 2007106930 A1 WO2007106930 A1 WO 2007106930A1 AU 2007000330 W AU2007000330 W AU 2007000330W WO 2007106930 A1 WO2007106930 A1 WO 2007106930A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
vaporization device
acceleration
heated surface
wells
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.)
Ceased
Application number
PCT/AU2007/000330
Other languages
English (en)
Inventor
Michael Patrick Dixon
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.)
Individual
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
Priority claimed from AU2006901442A external-priority patent/AU2006901442A0/en
Application filed by Individual filed Critical Individual
Priority to US12/293,848 priority Critical patent/US20090205587A1/en
Priority to AU2007229314A priority patent/AU2007229314A1/en
Priority to CN200780018424.9A priority patent/CN101449049B/zh
Priority to JP2009500661A priority patent/JP2009530532A/ja
Priority to EP07718579A priority patent/EP2004981A4/fr
Publication of WO2007106930A1 publication Critical patent/WO2007106930A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • F02M31/18—Other apparatus for heating fuel to vaporise fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • This invention relates to vaporization of liquids or liquefied gases. There are many applications where vaporization of liquids or liquefied gases is necessary for functional systems to work.
  • I provide a hot surface and force liquid by means of constraining devices in conjunction with the heated surface to maintain thermal contact with the surface until the liquid has vaporized.
  • I provide a hot surface and force liquid, by means of applying an acceleration to the liquid combined with constraining devices in conjunction with the heated surface, to maintain thermal contact with the surface until the liquid has vaporized.
  • this is achieved by placing axially concentric V-grooves in a housing cylinder, maintaining the surface at a sufficiently high temperature, and delivering the liquid into the V-grooves with a given velocity so that a tangential velocity is developed by the liquid.
  • the tangential velocity gives rise to radial inertial acceleration which combined with the V-groove suppresses liquid dispersion as well as droplet formation and forces the liquid to maintain physical contact with the hot surface.
  • the maximum heat transfer rate and therefore the maximum vapour production rate occurs in the nucleate boiling regime at a temperature difference of about 30 degrees C. Above the Leidenfrost point the temperature difference would need to be greater then 1000 degrees C. to equal the maximum heat transfer rate produced in the nucleate boiling regime. Most other liquids exhibit similar phenomena as water which has been used here as an example.
  • a sphere contacts a surface in the ideal at a point and for a deformable liquid drop under an applied force the contact area will be greater then a point but much smaller than the wetted area of the same volume of liquid if the wetting phenomena were able to proceed.
  • radial inertial acceleration centrifugal acceleration
  • the radial acceleration gives rise to a force being exerted by the fluid onto the surface and vice versa.
  • the instantaneous magnitude of the radial acceleration is a function of the tangential velocity and the radius of curvature at any instant.
  • the curved surface that imparts the radial acceleration to the liquid can be any geometric shape that inhibits axial spread of the liquid i.e. imparts an axial acceleration on the liquid as well.
  • a concentric V- groove is one example. Such a configuration forces the fluid back onto itself in three orthogonal directions thereby suppressing drop formation and ensuring physical contact with the hot surface.
  • the applied radial inertial acceleration produces in the liquid a radial pressure, a hoop pressure and the sides of the V-groove producing an opposing axial pressure. Liquid cannot escape from the groove it is caught in an acceleration well, a liquid trap. Vapor can be buoyed through the liquid in the direction of diminishing pressure i.e. towards the origin of the radius of curvature of the surface, and as well pumped along the groove walls. Once the vapor is clear of the liquid it is free to expand or be entrained in ambient gas.
  • Non-wetting surfaces can be used in the same way as wetting surfaces.
  • the surface finish can be from extremely smooth to any suitable finish and be of the base material or coated with a suitable material such as Teflon.
  • Liquid can be delivered to the invention by any suitable means and can be continuous or intermittent and can include one or several intermittent liquid jets.
  • a V-groove has been used to describe the acceleration well or liquid trap geometry however it is understood that the curved surface that imparts the radial and axial acceleration to the liquid can be any geometric shape capable of causing an acceleration well or liquid trap.
  • One or many acceleration wells can be deployed depending on the vaporization load.
  • the grooves or surfaces can be concentric or otherwise.
  • the V-groove or the curved surface that imparts the radial and axial acceleration to the liquid and produces the acceleration well or liquid trap can have a helical path or trajectory or any other suitable path or trajectory, can be open ended or closed, have a lead in or out or can begin or terminate smoothly or abruptly.
  • the depth of the V- groove or the curved surface can be any suitable depth.
  • the acceleration well or liquid trap may be provided for by forming raised profiles on the heated surface.
  • the radius of curvature of the acceleration well or liquid trap can be constant or varying, continuous or piecewise, small or large along the path or trajectory of the acceleration well or liquid trap.
  • the geometry of the surfaces may well be variable over time as in an enforced shape change, may well have shape discontinuities imposed on the surfaces as required and may change shape with changes in temperature.
  • the heated surface can be heated by any suitable means.
  • the temperature difference between the surface and the liquid need not approach or be greater than Leidenfrost point temperature differences.
  • the acceleration wells may well be used to constrain the liquid at some predefined position in a system where diffusing molecules of the liquid enter a stationary or moving gas.
  • the geometric configuration of the shapes can be any configuration that reflects the liquid into the gas flow stream allowing the liquid to become entrained in the gas flow stream.
  • the shapes could be one or many, co-reflective or directed in any suitable direction. This could be used in the fueling system of internal combustion engines as one example of an application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

L'invention concerne la vaporisation liquides ou de gaz liquéfiés à partir d'une surface chauffée. L'invention force le liquide à maintenir un contact thermique avec la surface chauffée en communiquant une accélération au liquide et en délivrant le liquide dans des puits d'accélération ou des pièges à liquide sur ou dans la surface chauffée.
PCT/AU2007/000330 2006-03-21 2007-03-20 Système de vaporisation de liquides ou de gaz liquéfiés Ceased WO2007106930A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/293,848 US20090205587A1 (en) 2006-03-21 2007-03-20 Liquid or liquified gas vaporization system
AU2007229314A AU2007229314A1 (en) 2006-03-21 2007-03-20 Liquid or liquified gas vaporization system
CN200780018424.9A CN101449049B (zh) 2006-03-21 2007-03-20 液体或液化气体汽化系统
JP2009500661A JP2009530532A (ja) 2006-03-21 2007-03-20 液体又は液化ガス気化システム
EP07718579A EP2004981A4 (fr) 2006-03-21 2007-03-20 Système de vaporisation de liquides ou de gaz liquéfiés

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006901442 2006-03-21
AU2006901442A AU2006901442A0 (en) 2006-03-21 Liquid vapourization system

Publications (1)

Publication Number Publication Date
WO2007106930A1 true WO2007106930A1 (fr) 2007-09-27

Family

ID=38521936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/000330 Ceased WO2007106930A1 (fr) 2006-03-21 2007-03-20 Système de vaporisation de liquides ou de gaz liquéfiés

Country Status (7)

Country Link
US (1) US20090205587A1 (fr)
EP (1) EP2004981A4 (fr)
JP (1) JP2009530532A (fr)
KR (1) KR20090005021A (fr)
CN (1) CN101449049B (fr)
AU (1) AU2007229314A1 (fr)
WO (1) WO2007106930A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012168776A3 (fr) * 2011-06-07 2013-04-25 Toyota Jidosha Kabushiki Kaisha Système d'alimentation en carburant et procédé d'alimentation en carburant pour moteur à combustion interne
EP2599988A4 (fr) * 2010-07-27 2014-06-11 Toyota Motor Co Ltd Dispositif d'alimentation en carburant

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US4128390A (en) * 1976-06-09 1978-12-05 Mitsubishi Denki Kabushiki Kaisha Fuel vaporizer and burner unit for space heater
DE3237662A1 (de) * 1982-10-11 1984-04-12 Herbert 2000 Hamburg Ahlgrimm Verfahren und vorrichtung zum verbessern einer verbrennung eines gemisches in einer verbrennungskraftmaschine
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EP0693623A1 (fr) * 1994-07-22 1996-01-24 Texas Instruments Incorporated Dispositif de chauffage de combustible pour réchauffer du combustible liquide sous pression pour un moteur à injection
JPH08200168A (ja) * 1995-01-24 1996-08-06 Toyota Autom Loom Works Ltd 燃料気化装置、燃料供給装置及び燃料気化方法
JPH08296819A (ja) * 1995-04-26 1996-11-12 Dainichi Kogyo Kk 気化装置
US5894832A (en) * 1996-07-12 1999-04-20 Hitachi America, Ltd., Research And Development Division Cold start engine control apparatus and method
US6089218A (en) * 1995-12-13 2000-07-18 Tokai Corporation Vaporization acceleration device for high-calorie gas appliance
US6820864B2 (en) * 2002-01-15 2004-11-23 Hitachi, Ltd. Fuel vaporization promoting apparatus and fuel carburetion accelerator
CH696212A5 (de) * 2003-06-04 2007-02-15 Toby Ag Verdampferbrenner für flüssige Brennstoffe.

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DE2356229A1 (de) * 1973-11-10 1975-05-22 Shigetake Tamai Zerstaeuberduese
US4128390A (en) * 1976-06-09 1978-12-05 Mitsubishi Denki Kabushiki Kaisha Fuel vaporizer and burner unit for space heater
DE3237662A1 (de) * 1982-10-11 1984-04-12 Herbert 2000 Hamburg Ahlgrimm Verfahren und vorrichtung zum verbessern einer verbrennung eines gemisches in einer verbrennungskraftmaschine
DE4230054A1 (de) * 1991-06-28 1994-03-10 Man Nutzfahrzeuge Ag Zerstäuberdüse
RU2045677C1 (ru) * 1992-11-10 1995-10-10 Александр Иванович Назаров Система питания теплового двигателя
EP0693623A1 (fr) * 1994-07-22 1996-01-24 Texas Instruments Incorporated Dispositif de chauffage de combustible pour réchauffer du combustible liquide sous pression pour un moteur à injection
JPH08200168A (ja) * 1995-01-24 1996-08-06 Toyota Autom Loom Works Ltd 燃料気化装置、燃料供給装置及び燃料気化方法
JPH08296819A (ja) * 1995-04-26 1996-11-12 Dainichi Kogyo Kk 気化装置
US6089218A (en) * 1995-12-13 2000-07-18 Tokai Corporation Vaporization acceleration device for high-calorie gas appliance
US5894832A (en) * 1996-07-12 1999-04-20 Hitachi America, Ltd., Research And Development Division Cold start engine control apparatus and method
US6820864B2 (en) * 2002-01-15 2004-11-23 Hitachi, Ltd. Fuel vaporization promoting apparatus and fuel carburetion accelerator
CH696212A5 (de) * 2003-06-04 2007-02-15 Toby Ag Verdampferbrenner für flüssige Brennstoffe.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2599988A4 (fr) * 2010-07-27 2014-06-11 Toyota Motor Co Ltd Dispositif d'alimentation en carburant
WO2012168776A3 (fr) * 2011-06-07 2013-04-25 Toyota Jidosha Kabushiki Kaisha Système d'alimentation en carburant et procédé d'alimentation en carburant pour moteur à combustion interne
CN103597191A (zh) * 2011-06-07 2014-02-19 丰田自动车株式会社 用于内燃发动机的燃料供给系统和燃料供给方法
CN103597191B (zh) * 2011-06-07 2016-06-08 丰田自动车株式会社 用于内燃发动机的燃料供给系统和燃料供给方法
US9518543B2 (en) 2011-06-07 2016-12-13 Toyota Jidosha Kabushiki Kaisha Fuel supply system and fuel supply method for internal combustion engine

Also Published As

Publication number Publication date
AU2007229314A1 (en) 2007-09-27
US20090205587A1 (en) 2009-08-20
JP2009530532A (ja) 2009-08-27
EP2004981A1 (fr) 2008-12-24
EP2004981A4 (fr) 2012-02-01
CN101449049B (zh) 2015-11-25
CN101449049A (zh) 2009-06-03
KR20090005021A (ko) 2009-01-12

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