EP1925786A1 - System für die Nutzung von Restwärme - Google Patents

System für die Nutzung von Restwärme Download PDF

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Publication number
EP1925786A1
EP1925786A1 EP06024323A EP06024323A EP1925786A1 EP 1925786 A1 EP1925786 A1 EP 1925786A1 EP 06024323 A EP06024323 A EP 06024323A EP 06024323 A EP06024323 A EP 06024323A EP 1925786 A1 EP1925786 A1 EP 1925786A1
Authority
EP
European Patent Office
Prior art keywords
unit
working fluid
heat energy
vaporizing
gaseous
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Withdrawn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
EP06024323A
Other languages
English (en)
French (fr)
Inventor
Gunnar Norén
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP06024323A priority Critical patent/EP1925786A1/de
Priority to PCT/EP2007/062505 priority patent/WO2008061960A1/en
Publication of EP1925786A1 publication Critical patent/EP1925786A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/185—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using waste heat from outside the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for

Definitions

  • the present invention relates to a system for using or refining surplus heat energy, in particular by utilizing waste heat energy from district cooling or other heat energy sources, comprising a cycle for circulation of a working fluid, the cycle including a vaporizing unit for taking up the surplus heat energy and vaporizing the working fluid to become gaseous, a compressor unit for compressing the gaseous working fluid, a condenser unit for condensing the compressed gaseous working fluid to become liquid and releasing heat energy to a heat carrier, and an expansion unit for reducing the pressure of the liquid working fluid.
  • a system for heat energy refinement by utilizing waste heat energy in a conduct comprising a first cycle, an evaporator in which the circulating working fluid is evaporated to gas, a compressor that compresses the gas, a condenser that condenses the gas to a condensate and releases heat energy to a passing heat carrier in the condenser, and an expansion valve that expands the condensate and brings back the working fluid to the evaporator.
  • the system further comprising a second cycle being attached to the first cycle via the evaporator for supplying fluid from the evaporator to a turbine whereby an expansion occurs and whereby the condensate is brought back to the evaporator of the first cycle.
  • the system for using surplus heat energy, in particular from district cooling comprises a cycle for circulation of a working fluid, the cycle including a vaporizing unit for taking up the surplus heat energy and vaporizing the working fluid to become gaseous, a compressor unit for compressing the gaseous working fluid, a condenser unit for condensing the compressed gaseous working fluid to become liquid and releasing heat energy to a heat carrier, and an expansion unit for reducing the pressure of the liquid working fluid.
  • the system further includes a second vaporizing unit being connected to the cycle via the condenser unit for taking up heat energy from the heat carrier and vaporizing a second working fluid to become gaseous, and a second expansion unit for expanding the gaseous second working fluid.
  • heat energy in the state of waste heat energy or from other heat sources can be used for said circle of the system first, and can further be used for vaporizing a second working fluid which can be expanded and can thus deliver energy for further areas of application.
  • the two evaporation processes of the system usually occur at different temperature levels, thus providing a wide range of application possibilities.
  • the second expansion unit of the system includes a turbine having a generator torque proof connected therewith.
  • the turbine may drive a generator for the production of electricity.
  • a second condenser unit into the system for condensing the gaseous second working fluid to become liquid.
  • a pump unit for pumping the liquid second working fluid from the second condenser unit to the second vaporizing unit is provided.
  • the second condenser, the pump unit and said second vaporizing unit all together form a second circle in which said turbine works as a "refrigerant"-turbine for using nearly the entire temperature potential of the second working fluid and for generating electricity which can be distributed easily.
  • the second condenser may be connected with a cooling conduct by which only a small amount of waste heat energy is dumped to the environment.
  • a heat carrier conduit for conducting a heat carrier fluid is provided.
  • the heat carrier conduit makes it possible to position the first circle at the adequate distance of the second circle and the second vaporizing unit and second expansion unit provided therein.
  • Fig. shows a circuit diagram of an embodiment of a system for using surplus heat energy, in particular from district cooling, according to the invention.
  • a system 10 uses surplus heat energy which is delivered through a conduit 12 of a district cooling.
  • the system 10 comprises a first cycle 14 for circulation of a working fluid through a vaporizing unit 16, a compressor unit 18, a condenser unit 20 and an expansion unit 22.
  • the vaporizing unit 16 takes up the surplus heat energy from the conduct 12 and vaporizes the working fluid in the first circle 14 to become gaseous.
  • the compressor unit 18 compresses the gaseous working fluid.
  • the condenser unit 20 condenses the compressed gaseous working fluid to become liquid and releasing heat energy to a liquid heat carrier which runs through a conduit 24.
  • a rigid or non-flexible heat carrier e.g., in the form of an aluminium rib or web, may be provided.
  • the expansion unit 22 reduces the pressure of the liquid working fluid and delivers the working fluid back to the vaporizing unit 16.
  • the system 10 further includes a second vaporizing unit 26 which is connected to the first cycle 14 via the liquid heat carrier in the conduit 24 to the condenser unit 20 for taking up heat energy from the heat carrier and vaporizing a second working fluid to become gaseous.
  • the second working fluid runs through a second circle 28.
  • a second expansion unit 30 in the form of a turbine is provided for expanding the gaseous second working fluid.
  • the turbine drives a generator 32 which provides electricity.
  • the second circle 28 further includes a second condenser unit 34 for condensing the gaseous second working fluid to become liquid and a pump unit 36 for pumping the liquid second working fluid from the second condenser unit 34 to the second vaporizing unit 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP06024323A 2006-11-23 2006-11-23 System für die Nutzung von Restwärme Withdrawn EP1925786A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06024323A EP1925786A1 (de) 2006-11-23 2006-11-23 System für die Nutzung von Restwärme
PCT/EP2007/062505 WO2008061960A1 (en) 2006-11-23 2007-11-19 System for using surplus heat energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06024323A EP1925786A1 (de) 2006-11-23 2006-11-23 System für die Nutzung von Restwärme

Publications (1)

Publication Number Publication Date
EP1925786A1 true EP1925786A1 (de) 2008-05-28

Family

ID=38694864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024323A Withdrawn EP1925786A1 (de) 2006-11-23 2006-11-23 System für die Nutzung von Restwärme

Country Status (2)

Country Link
EP (1) EP1925786A1 (de)
WO (1) WO2008061960A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2248998A1 (de) * 2008-11-13 2010-11-10 Barthélémy Guerin Funktionssystem und -verfahren einer Wärmekraftmaschine mit Hilfe eines geschlossenen Kühlmittelkreislaufs, die die Rückgewinnung der Wärmeenergie aus einer äußeren Flüssigkeit ermöglichen
EP2765281A1 (de) * 2013-02-07 2014-08-13 Ingenieria I Mas D-Tec Ratio, S.L. Rankine-Zyklusvorrichtung
CN104964474A (zh) * 2015-07-14 2015-10-07 国家电网公司 一种利用发电电动机的余热制冷的冷却系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8166776B2 (en) 2007-07-27 2012-05-01 Johnson Controls Technology Company Multichannel heat exchanger
US20100242532A1 (en) 2009-03-24 2010-09-30 Johnson Controls Technology Company Free cooling refrigeration system
CN102549361B (zh) 2009-08-14 2014-12-24 江森自控科技公司 自然冷却制冷系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996749A (en) * 1974-05-07 1976-12-14 Compagnie Francaise D'etudes Et De Construction "Technip" Method and plants for producing, storing, modulating and distributing energy
GB2239489A (en) * 1989-09-26 1991-07-03 Roger Stuart Brierley Harnessing of low grade heat energy
US5272878A (en) * 1992-12-10 1993-12-28 Schlichtig Ralph C Azeotrope assisted power system
WO2005024189A1 (en) * 2003-09-10 2005-03-17 Eta Entrans Ab System for heat refinement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996749A (en) * 1974-05-07 1976-12-14 Compagnie Francaise D'etudes Et De Construction "Technip" Method and plants for producing, storing, modulating and distributing energy
GB2239489A (en) * 1989-09-26 1991-07-03 Roger Stuart Brierley Harnessing of low grade heat energy
US5272878A (en) * 1992-12-10 1993-12-28 Schlichtig Ralph C Azeotrope assisted power system
WO2005024189A1 (en) * 2003-09-10 2005-03-17 Eta Entrans Ab System for heat refinement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2248998A1 (de) * 2008-11-13 2010-11-10 Barthélémy Guerin Funktionssystem und -verfahren einer Wärmekraftmaschine mit Hilfe eines geschlossenen Kühlmittelkreislaufs, die die Rückgewinnung der Wärmeenergie aus einer äußeren Flüssigkeit ermöglichen
EP2765281A1 (de) * 2013-02-07 2014-08-13 Ingenieria I Mas D-Tec Ratio, S.L. Rankine-Zyklusvorrichtung
WO2014122515A3 (en) * 2013-02-07 2015-05-07 Ingenieria I Mas D Tec-Ratio, Slpu A rankine cycle apparatus
CN104964474A (zh) * 2015-07-14 2015-10-07 国家电网公司 一种利用发电电动机的余热制冷的冷却系统
CN104964474B (zh) * 2015-07-14 2017-07-07 国家电网公司 一种利用发电电动机的余热制冷的冷却系统

Also Published As

Publication number Publication date
WO2008061960A1 (en) 2008-05-29

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