EP2126483A1 - Providing engine heat to an absorption chiller - Google Patents

Providing engine heat to an absorption chiller

Info

Publication number
EP2126483A1
EP2126483A1 EP06850252A EP06850252A EP2126483A1 EP 2126483 A1 EP2126483 A1 EP 2126483A1 EP 06850252 A EP06850252 A EP 06850252A EP 06850252 A EP06850252 A EP 06850252A EP 2126483 A1 EP2126483 A1 EP 2126483A1
Authority
EP
European Patent Office
Prior art keywords
engine
fluid
absorption chiller
heat
chiller
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Withdrawn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
EP06850252A
Other languages
German (de)
French (fr)
Inventor
David G. Converse
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
UTC Power 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 UTC Power Corp filed Critical UTC Power Corp
Publication of EP2126483A1 publication Critical patent/EP2126483A1/en
Withdrawn legal-status Critical Current

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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
    • 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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • 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
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems
    • Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Definitions

  • This disclosure relates to absorption chillers. More particularly, this disclosure relates to providing heat to an absorption chiller.
  • Absorption chillers are well-known.
  • the typical absorption chiller evaporates fluid, such as ammonia, to remove heat from a surrounding environment.
  • the absorption chiller may include a boiler section, a condenser section, an evaporator section, and an absorption section. Although many substances may be used within the absorption chiller, typical absorption chillers include ammonia, lithium bromide, and water. Providing heat to the absorption chiller allows for evaporating fluid to drive an absorption chiller cooling cycle.
  • An absorption chiller can be used as part of an energy efficient system in either a cogeneration configuration (electric power and air conditioning) or in a tri-generation configuration (electric power, heat and air conditioning).
  • the prime mover for the electric generator may be an internal combustion engine. These engines produce heat as a by-product. Typically this heat comes from two sources within the engine: from a water jacket surrounding the combustion chambers and from the process exhaust stream. This heat is useful for other purposes on the site, such as for process or space heating, or for air conditioning.
  • An absorption chiller can use this waste heat produced by an internal combustion engine to drive a cooling cycle and provide air conditioning.
  • FIG. 1 The schematic of Figure 1 shows a prior art arrangement 10 for using heat from an engine 12 for providing heat to an absorption chiller 14.
  • the engine 12 generates heat as it powers a generator 18.
  • the engine 12 commonly includes an exhaust portion 22 and a water jacket portion 26. Heated exhaust flows away from the exhaust portion 22 of the engine 12, along a line 30, and through a heat exchanger 38 before it enters the environment at 48.
  • the water jacket 26 is used for cooling the engine 12. Heated fluid from the water jacket 26 flows along a line 34 and through a heat exchanger 42 before it returns to the water jacket 26.
  • the absorption chiller 14 includes a fluid line 46 in communication with the heat exchanger 38 and the heat exchanger 42. Heat from the fluids leaving the engine 12 is absorbed by the fluid in the line 46 in the heat exchangers 38 and 42.
  • the prior art arrangement 10 uses three lines 30, 46, and 34 and the two heat exchangers 38 and 42 to communicate heat.
  • the prior art arrangement 10 includes inefficiencies because the temperature of the fluids at the water jacket portion 26 and the exhaust portion 22 drops before the heat transfer at the heat exchanger 38 and the heat exchanger 42. A difference of even a few degrees in the temperature of the fluid provided to the chiller can significantly reduce the performance. For example, a 200° F temperature provides adequate heat but at 190° F chiller performance decreases significantly.
  • An example method of providing heat to an absorption chiller includes communicating a fluid from the absorption chiller to an engine, heating the fluid at the location of the engine, and communicating the heated fluid to the absorption chiller. [0009] One example includes heating the fluid using heat from a water jacket of the engine and circulating the fluid between the absorption chiller and the engine.
  • An example arrangement for providing heat to an absorption chiller includes an absorption chiller, and a fluid path for circulating fluid between the absorption chiller and the engine where the fluid is heated. The fluid path then communicates the heated fluid to the absorption chiller. The fluid carries heat from the engine directly to the absorption chiller.
  • Figure 1 schematically shows a prior art absorption chiller arrangement.
  • Figure 2 schematically shows an example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
  • Figure 3 schematically shows another example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
  • Figure 4 schematically shows another example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
  • An example arrangement 50 is shown schematically in Figure 2.
  • An engine 52 provides heat to an absorption chiller 54.
  • the engine 52 which is a reciprocating engine in one example, drives an electrical generator 58.
  • the engine 52 includes an exhaust portion 62 and a water jacket portion 66.
  • the illustrated arrangement 50 includes a heat exchanger 78 for transferring heat from the engine 52.
  • the absorption chiller 54 requires heat to drive a cooling cycle.
  • fluid flows through a line 74 directly from the absorption chiller 54 to the engine 52 and back to the absorption chiller 54.
  • the fluid absorbs heat from the engine 52 and carries the heat back to the absorption chiller 54.
  • Line 74 provides the path of the fluid, a chiller working fluid, flowing directly between the absorption chiller 54 and the engine 52 that does not require a heat exchanger away from the engine as was used in the prior art.
  • a pump (not illustrated) may be used to achieve a desired flow.
  • the water jacket portion 66 helps to transfer heat from the engine 52 to the fluid flowing within the line 74.
  • the fluid in the water jacket portion 66 is the fluid from line 74.
  • the fluid flowing along the line 74 also circulates through the water jacket portion 66 to remove heat from the engine 52.
  • the water jacket portion 66 includes a second fluid, such as water, for transferring heat from the engine 52 to the fluid flowing in line 74.
  • the second fluid is separate from the chiller working fluid that flows along line 74. Heat moves from the second fluid to the fluid flowing within line 74. Fluids within the water jacket portion 66 may reach temperatures ranging from 180-200° F.
  • exhaust from the engine 52 provides another source of heat for the absorption chiller 54.
  • a line 70 carries hot exhaust from the exhaust portion 62 of the engine 52, through the heat exchanger 78 before it is released to the environment at 76.
  • Various types of heat exchangers 78 may be used, such as a shell-and-tube type heat exchanger.
  • Fluid such as water or oil for example
  • flowing along the line 74 moves directly from the absorption chiller 54 into a portion of the engine 52.
  • the fluid absorbs heat within the engine 52 and flows back to the absorption chiller 54.
  • the fluid may move through the heat exchanger 78 to absorb additional heat.
  • Directly routing the fluid between the engine 52 and the absorption chiller 54 results in a higher heat source temperature to the chiller.
  • the fluid flowing along line 74 absorbs heat from a first heat transfer portion at the location of the engine 52 and a second heat transfer portion at the location of the engine 52.
  • the second heat transfer portion is proximate the engine exhaust 70 and is fluidly coupled to the absorption chiller 54.
  • Fluid flowing along line 74 absorbs heat from the water jacket 66 and the exhaust 62 portions of the engine 52.
  • the example of Figure 4 functions much like the example of Figure 3 with the addition of the heat exchanger 78 separate from the engine 52.
  • the fluid absorbs heat from the first and second heat transfer portions at the location of the engine 52.
  • the fluid then absorbs addition heat from the engine exhaust 70 at the heat exchanger 78.
  • the preceding description is exemplary rather than limiting in nature.

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)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

A method of providing heat to an absorption chiller includes communicating a fluid from the absorption chiller to an engine, heating the fluid at the location of the engine, and returning the heated fluid to the absorption chiller. An example arrangement for providing heat to an absorption chiller includes an absorption chiller and an engine. A fluid path communicates a fluid from the absorption chiller to the engine where the fluid is heated. The fluid path then communicates the heated fluid directly to the absorption chiller. The fluid provides heat to the absorption chiller.

Description

PROVIDING ENGINE HEAT TO AN ABSORPTION CHILLER
1. Technical Field
[0001] This disclosure relates to absorption chillers. More particularly, this disclosure relates to providing heat to an absorption chiller.
2. Description of Related Art
[0002] Absorption chillers are well-known. The typical absorption chiller evaporates fluid, such as ammonia, to remove heat from a surrounding environment. The absorption chiller may include a boiler section, a condenser section, an evaporator section, and an absorption section. Although many substances may be used within the absorption chiller, typical absorption chillers include ammonia, lithium bromide, and water. Providing heat to the absorption chiller allows for evaporating fluid to drive an absorption chiller cooling cycle.
[0003] An absorption chiller can be used as part of an energy efficient system in either a cogeneration configuration (electric power and air conditioning) or in a tri-generation configuration (electric power, heat and air conditioning). On- site power generation applications are becoming increasingly common, for purposes of either distributed power generation or back-up power generation. In either case, the prime mover for the electric generator may be an internal combustion engine. These engines produce heat as a by-product. Typically this heat comes from two sources within the engine: from a water jacket surrounding the combustion chambers and from the process exhaust stream. This heat is useful for other purposes on the site, such as for process or space heating, or for air conditioning. An absorption chiller can use this waste heat produced by an internal combustion engine to drive a cooling cycle and provide air conditioning.
[0004] Increasing the temperature of the heat available to the absorption chiller will increase the cooling effectiveness of the chiller. Existing absorption chiller arrangements utilize multiple heat exchangers and fluid loops to use heat from the engine for operating the absorption chiller. Each transfer or exchange of heat results in some degradation of temperature from the heat source.
[0005] The schematic of Figure 1 shows a prior art arrangement 10 for using heat from an engine 12 for providing heat to an absorption chiller 14. As is known, the engine 12 generates heat as it powers a generator 18. The engine 12 commonly includes an exhaust portion 22 and a water jacket portion 26. Heated exhaust flows away from the exhaust portion 22 of the engine 12, along a line 30, and through a heat exchanger 38 before it enters the environment at 48. The water jacket 26 is used for cooling the engine 12. Heated fluid from the water jacket 26 flows along a line 34 and through a heat exchanger 42 before it returns to the water jacket 26.
[0006] The absorption chiller 14 includes a fluid line 46 in communication with the heat exchanger 38 and the heat exchanger 42. Heat from the fluids leaving the engine 12 is absorbed by the fluid in the line 46 in the heat exchangers 38 and 42. The prior art arrangement 10 uses three lines 30, 46, and 34 and the two heat exchangers 38 and 42 to communicate heat. The prior art arrangement 10 includes inefficiencies because the temperature of the fluids at the water jacket portion 26 and the exhaust portion 22 drops before the heat transfer at the heat exchanger 38 and the heat exchanger 42. A difference of even a few degrees in the temperature of the fluid provided to the chiller can significantly reduce the performance. For example, a 200° F temperature provides adequate heat but at 190° F chiller performance decreases significantly.
[0007] It would be desirable to provide an improved absorption chiller heating arrangement.
SUMMARY [0008] An example method of providing heat to an absorption chiller includes communicating a fluid from the absorption chiller to an engine, heating the fluid at the location of the engine, and communicating the heated fluid to the absorption chiller. [0009] One example includes heating the fluid using heat from a water jacket of the engine and circulating the fluid between the absorption chiller and the engine.
[0010] An example arrangement for providing heat to an absorption chiller includes an absorption chiller, and a fluid path for circulating fluid between the absorption chiller and the engine where the fluid is heated. The fluid path then communicates the heated fluid to the absorption chiller. The fluid carries heat from the engine directly to the absorption chiller.
[0011] The various features and advantages of this disclosure will become apparent to those skilled in the art from the following detailed description. The accompanying drawings can be briefly described as follows.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 schematically shows a prior art absorption chiller arrangement. [0013] Figure 2 schematically shows an example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
[0014] Figure 3 schematically shows another example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
[0015] Figure 4 schematically shows another example arrangement designed according to an embodiment of this disclosure for providing heat generated by an engine to an absorption chiller.
DETAILED DESCRIPTION
[0016] An example arrangement 50 is shown schematically in Figure 2. An engine 52 provides heat to an absorption chiller 54. The engine 52, which is a reciprocating engine in one example, drives an electrical generator 58. The engine 52 includes an exhaust portion 62 and a water jacket portion 66. The illustrated arrangement 50 includes a heat exchanger 78 for transferring heat from the engine 52.
[0017] The absorption chiller 54 requires heat to drive a cooling cycle. In this example, fluid flows through a line 74 directly from the absorption chiller 54 to the engine 52 and back to the absorption chiller 54. The fluid absorbs heat from the engine 52 and carries the heat back to the absorption chiller 54. Line 74 provides the path of the fluid, a chiller working fluid, flowing directly between the absorption chiller 54 and the engine 52 that does not require a heat exchanger away from the engine as was used in the prior art. A pump (not illustrated) may be used to achieve a desired flow. [0018] The water jacket portion 66 helps to transfer heat from the engine 52 to the fluid flowing within the line 74. In one example, the fluid in the water jacket portion 66 is the fluid from line 74. In such an example, the fluid flowing along the line 74 also circulates through the water jacket portion 66 to remove heat from the engine 52. Alternatively, the water jacket portion 66 includes a second fluid, such as water, for transferring heat from the engine 52 to the fluid flowing in line 74. The second fluid is separate from the chiller working fluid that flows along line 74. Heat moves from the second fluid to the fluid flowing within line 74. Fluids within the water jacket portion 66 may reach temperatures ranging from 180-200° F.
[0019] After absorbing heat from the engine 52, heated fluid returns to the absorption chiller 54 along line 74. The heat within the fluid drives the cooling cycle of the absorption chiller 54. Moving the fluid directly between the engine 52 and the absorption chiller 54 provides higher quality heat (i.e. heat at a higher temperature) compared to previous designs. In one example, water flowing between the absorption chiller 54 and the engine 52 increases the temperature of the water returning to the absorption chiller 54 by about 4 degrees over the prior art arrangements and provides about 1 RT more chilling capacity for the same amount of input heat.
[0020] In the illustrated example, exhaust from the engine 52 provides another source of heat for the absorption chiller 54. As fluid in the line 74 moves through a heat exchanger 78, it absorbs additional heat from the exhaust. A line 70 carries hot exhaust from the exhaust portion 62 of the engine 52, through the heat exchanger 78 before it is released to the environment at 76. Various types of heat exchangers 78 may be used, such as a shell-and-tube type heat exchanger.
[0021] Fluid, such as water or oil for example, flowing along the line 74 moves directly from the absorption chiller 54 into a portion of the engine 52. The fluid absorbs heat within the engine 52 and flows back to the absorption chiller 54. The fluid may move through the heat exchanger 78 to absorb additional heat. Directly routing the fluid between the engine 52 and the absorption chiller 54 results in a higher heat source temperature to the chiller.
[0022] In the example of Figure 3, the fluid flowing along line 74 absorbs heat from a first heat transfer portion at the location of the engine 52 and a second heat transfer portion at the location of the engine 52. The second heat transfer portion is proximate the engine exhaust 70 and is fluidly coupled to the absorption chiller 54. Fluid flowing along line 74 absorbs heat from the water jacket 66 and the exhaust 62 portions of the engine 52. [0023] The example of Figure 4 functions much like the example of Figure 3 with the addition of the heat exchanger 78 separate from the engine 52. The fluid absorbs heat from the first and second heat transfer portions at the location of the engine 52. The fluid then absorbs addition heat from the engine exhaust 70 at the heat exchanger 78. [0024] The preceding description is exemplary rather than limiting in nature.
Variations and modifications to the disclosed examples may become apparent to those skilled in the art that do not necessarily depart from the essence of this disclosure. The scope of legal protection given to this disclosure can only be determined by studying the following claims.

Claims

CLAIMSWe claim:
1. A method of providing heat to an absorption chiller, comprising: establishing a fluid flow from the absorption chiller to an engine; heating the fluid at the location of the engine; and communicating the heated fluid from the engine directly to the absorption chiller.
2. The method of claim 1 , including heating the fluid using heat from a water jacket of the engine.
3. The method of claim 1, including heating the heated fluid using heat from an exhaust of the engine.
4. The method of claim 1, including repeatedly circulating the fluid between the absorption chiller and the engine.
5. The method of claim 1, comprising directing the fluid inside the absorption chiller and inside a portion of the engine.
6. The method of claim 1, wherein the engine comprises an internal combustion engine that drives a generator.
7. The method of claim 1 , including heating the fluid using heat from a first portion of the engine and then further heating the fluid using heat from a second portion of the engine.
8. The method of claim 7, wherein the first portion of the engine comprises a water jacket and the second portion comprises an exhaust of the engine.
9. An absorption chiller arrangement, comprising: an absorption chiller; an engine; and a fluid path operative to circulate a fluid from said absorption chiller to said engine for heating the fluid and to return the heated fluid directly to said absorption chiller for providing heat to said absorption chiller.
10. The arrangement of claim 9, wherein said engine includes a water jacket portion operative to facilitate a transfer of heat from said engine to the fluid.
11. The arrangement of claim 9, wherein said engine includes an exhaust portion in thermal communication with a heat exchanger, said heat exchanger operative to facilitate a transfer of heat from said exhaust portion of said engine to the heated fluid.
12. The arrangement of claim 9, wherein said fluid path includes a portion inside said absorption chiller and a portion inside said engine.
13. The arrangement of claim 12, wherein the fluid path has a portion inside of a water jacket associated with the engine.
14. The arrangement of claim 9, wherein said fluid path is operative to repeatedly circulate the fluid between said absorption chiller and said engine.
15. The arrangement of claim 9, wherein the fluid absorbs heat from the engine at the location of the engine.
16. An absorption chiller system, comprising: an absorption chiller including a chiller working fluid, said chiller working fluid configured to be heated and transfer thermal energy to said absorption chiller; an engine including a first heat transfer portion proximate a water jacket and a second heat transfer portion proximate an engine exhaust, said first heat transfer portion fluidly coupled to said absorption chiller, said second heat transfer portion fluidly coupled to said absorption chiller; said first heat transfer portion thermally coupled to said chiller working fluid wherein thermal energy generated from said engine is transferable to said chiller working fluid from said first heat transfer portion; and said second heat transfer portion thermally coupled to said chiller working fluid wherein thermal energy generated from said engine exhaust is transferable to said chiller working fluid from said engine exhaust, wherein said chiller working fluid removes thermal energy from said first heat transfer portion and said second heat transfer portion and transfers said thermal energy to said absorption chiller.
17. The absorption chiller system of claim 16, comprising an exhaust heat exchanger separate from said engine thermally coupled to said engine exhaust and fluidly coupled to said chiller working fluid wherein thermal energy is transferable from said engine exhaust to said chiller working fluid in said exhaust heat exchanger.
EP06850252A 2006-12-08 2006-12-08 Providing engine heat to an absorption chiller Withdrawn EP2126483A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/061773 WO2008069819A1 (en) 2006-12-08 2006-12-08 Providing engine heat to an absorption chiller

Publications (1)

Publication Number Publication Date
EP2126483A1 true EP2126483A1 (en) 2009-12-02

Family

ID=38543018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06850252A Withdrawn EP2126483A1 (en) 2006-12-08 2006-12-08 Providing engine heat to an absorption chiller

Country Status (2)

Country Link
EP (1) EP2126483A1 (en)
WO (1) WO2008069819A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8844291B2 (en) 2010-12-10 2014-09-30 Vaporgenics Inc. Universal heat engine
US11137177B1 (en) 2019-03-16 2021-10-05 Vaporgemics, Inc Internal return pump

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Publication number Priority date Publication date Assignee Title
CN102748893A (en) * 2012-06-20 2012-10-24 青海宜化化工有限责任公司 PVC (polyvinyl chloride) system waste heat continuous refrigeration method and PVC system waste heat driven lithium bromide ice unit
JP2014152950A (en) * 2013-02-05 2014-08-25 Mitsubishi Heavy Ind Ltd Refrigeration system, ship, and operation method of refrigeration system
FR3086039B1 (en) 2018-09-18 2021-02-26 Commissariat Energie Atomique COOLING PRODUCTION AND MANAGEMENT SYSTEM BY AN ABSORPTION MACHINE FROM FATAL ENERGY FROM A COMBUSTION ENGINE

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JP2002147885A (en) * 2000-11-08 2002-05-22 Sanyo Electric Co Ltd Absorption refrigerating machine
DE10237850A1 (en) 2002-08-19 2004-03-04 ZAE Bayern Bayerisches Zentrum für angewandte Energieforschung e.V. Multi-stage absorption chiller (AKM) or absorption heat pump (AWP) with input of drive heat at different temperature levels

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8844291B2 (en) 2010-12-10 2014-09-30 Vaporgenics Inc. Universal heat engine
US11137177B1 (en) 2019-03-16 2021-10-05 Vaporgemics, Inc Internal return pump

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Publication number Publication date
WO2008069819A1 (en) 2008-06-12

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