WO2008061960A1 - Système destiné à utiliser l'énergie thermique en surplus - Google Patents

Système destiné à utiliser l'énergie thermique en surplus Download PDF

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Publication number
WO2008061960A1
WO2008061960A1 PCT/EP2007/062505 EP2007062505W WO2008061960A1 WO 2008061960 A1 WO2008061960 A1 WO 2008061960A1 EP 2007062505 W EP2007062505 W EP 2007062505W WO 2008061960 A1 WO2008061960 A1 WO 2008061960A1
Authority
WO
WIPO (PCT)
Prior art keywords
working fluid
unit
heat energy
vaporizing
gaseous
Prior art date
Application number
PCT/EP2007/062505
Other languages
English (en)
Inventor
Gunnar Norén
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2008061960A1 publication Critical patent/WO2008061960A1/fr

Links

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. Thus, even more waste heat energy or more district cooling can be produced and be transformed into electrical power without dumping surplus energy.
  • 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)

Abstract

La présente invention concerne un système (10) destiné à utiliser l'énergie thermique en surplus, en particulier depuis un refroidissement de division (12), comprenant un cycle (14) pour la circulation d'un fluide de travail, le cycle (14) comprenant une unité de vaporisation (16) pour prélever l'énergie thermique en surplus et vaporiser le fluide de travail pour le rendre gazeux, un système compresseur (18) pour comprimer le fluide de travail gazeux, un bloc de condensation (20) pour condenser le fluide de travail gazeux comprimé pour le rendre liquide et libérer l'énergie thermique vers un caloduc (24), et une unité de dilatation (22) pour réduire la pression du fluide de travail liquide. Le système (10) comprend, en outre, une deuxième unité de vaporisation (26) connectée au cycle (14) par l'intermédiaire du bloc de condensation (20) pour prélever l'énergie thermique depuis le caloduc (24) et vaporiser un second fluide de travail pour le rendre gazeux et une seconde unité de dilatation (30) pour dilater le second fluide de travail gazeux.
PCT/EP2007/062505 2006-11-23 2007-11-19 Système destiné à utiliser l'énergie thermique en surplus WO2008061960A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06024323A EP1925786A1 (fr) 2006-11-23 2006-11-23 Système pour l'utilisation de la chaleur résiduelle
EP06024323.5 2006-11-23

Publications (1)

Publication Number Publication Date
WO2008061960A1 true WO2008061960A1 (fr) 2008-05-29

Family

ID=38694864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/062505 WO2008061960A1 (fr) 2006-11-23 2007-11-19 Système destiné à utiliser l'énergie thermique en surplus

Country Status (2)

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

Cited By (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
US11175076B2 (en) 2009-03-24 2021-11-16 Johnson Controls Technology Company Free cooling refrigeration system
US11199356B2 (en) 2009-08-14 2021-12-14 Johnson Controls Technology Company Free cooling refrigeration system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2248998A1 (fr) * 2008-11-13 2010-11-10 Barthélémy Guerin Système et procédé de fonctionnement d'un moteur thermique à partir d'un circuit fermé d'un fluide frigorigène permettant une récupération d'énergie thermique d'un fluide extérieur
EP2765281B1 (fr) * 2013-02-07 2015-07-08 Ingenieria I Mas D-Tec Ratio, S.L. Appareil de cycle de Rankine
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

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 (fr) * 2003-09-10 2005-03-17 Eta Entrans Ab Systeme d'amelioration de l'utilisation de chaleur

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 (fr) * 2003-09-10 2005-03-17 Eta Entrans Ab Systeme d'amelioration de l'utilisation de chaleur

Cited By (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
US11175076B2 (en) 2009-03-24 2021-11-16 Johnson Controls Technology Company Free cooling refrigeration system
US11199356B2 (en) 2009-08-14 2021-12-14 Johnson Controls Technology Company Free cooling refrigeration system

Also Published As

Publication number Publication date
EP1925786A1 (fr) 2008-05-28

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