WO2008082388A1 - Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp) - Google Patents

Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp) Download PDF

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Publication number
WO2008082388A1
WO2008082388A1 PCT/US2006/049588 US2006049588W WO2008082388A1 WO 2008082388 A1 WO2008082388 A1 WO 2008082388A1 US 2006049588 W US2006049588 W US 2006049588W WO 2008082388 A1 WO2008082388 A1 WO 2008082388A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
electrical
generator
power
motor
Prior art date
Application number
PCT/US2006/049588
Other languages
English (en)
Inventor
Sitaram Ramaswamy
Original Assignee
Utc Power Corporation
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 Corporation filed Critical Utc Power Corporation
Priority to PCT/US2006/049588 priority Critical patent/WO2008082388A1/fr
Publication of WO2008082388A1 publication Critical patent/WO2008082388A1/fr

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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
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • 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
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
    • 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
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • a combined heat and power (CHP) system includes a mechanical power source having a mechanical shaft output configured to produce mechanical shaft energy.
  • a power split device is coupled to the mechanical shaft output and is configured to variably distribute the mechanical shaft energy to a motor/generator and a chiller.
  • the motor/generator is coupled to the power split device and configured to generate electrical energy from the mechanical shaft energy.
  • the chiller is coupled to the power split device and is configured to generate chilled liquid from the mechanical shaft energy.
  • FIG. 3 is a plot illustrating operation of the CHP system of FIG. 2 for supporting an electrical load and a thermal load from the chiller system.
  • a power split device may be used in a combined heat and power (CHP) system to improve operation of the CHP system.
  • a mechanical power source that generates mechanical shaft energy may commonly be mechanically coupled to a motor-generator, which uses the shaft energy to produce electrical energy. The electrical energy may then be distributed to an electrical load or to an electrical energy storage system.
  • the motor-generator typically in a CHP system that includes a chiller, the motor-generator also supplies electrical energy to the chiller, which uses the energy input for cooling.
  • a CHP system operates more efficiently by selectively supplying the mechanical shaft energy directly to the chiller from the mechanical power source.
  • system 1 12 is operating in a mode in which an electrical load from grid or load 122 receives priority over a cooling load from chiller system 118. (Alternatively, a cooling load may be equal to zero.) Essentially all of the mechanical shaft energy from ORC system 1 12 is distributed through power split device 114 to motor/generator 116, in order to meet the electrical demand of grid or load 122.
  • Load Power is reduced from 1.0 to 0.8 units. This reduction in Load Power is a result of a decreased demand from grid or load 122. Because ORC Output remains constant, the excess mechanical shaft energy from ORC system 112 that is no longer required by grid 122 may be supplied to chiller 118. However, chiller 118 is most likely not able to immediately receive all of the excess shaft energy; instead, the input to chiller 118 from prime mover 112 is gradually increased. As shown in FIG. 3, VCC Power Input steadily increases between 6 and 7 seconds until it reaches 0.2 units.
  • electrical energy storage 124 may receive excess electrical energy generated by motor/generator 116, while chiller 118 is ramping up. This is shown in FIG. 3 by the increase to Electrical Energy Storage at time equal to 6 seconds. However, the rate at which electrical energy storage 124 is receiving electrical energy from motor/generator 1 16 decreases as power to chiller 118 increases. At time equal to 7 seconds, VCC Power Input has reached a set point of 0.2 units and chiller system 118 is receiving all of the mechanical shaft energy from prime mover 112 that is not required by motor/generator 116. At this same point in time, electrical energy storage system 124 is consequently at zero.
  • VCC Power Input is equal to 0.1 units, meaning that chiller system 1 18 is receiving some mechanical shaft energy from ORC system 112.
  • Power from Electrical Energy Storage is equal to zero between time equal to zero and 6 seconds, meaning that ORC system 1 12 is able to provide enough shaft energy to chiller system 1 18 to meet a cooling load of chiller 118.
  • control architecture 150 includes a cascaded control scheme, and power split device 114 is controlled by supervisory controller 154 through power controller 120. It is recognized that in additional embodiments of control architecture 150, power split device 1 14 may include its own controller that is directly connected to supervisory controller 154.
  • the distribution of shaft energy from power split device 1 14 may also be based upon desired operating conditions for each mechanical shaft of device 114, motor/generator 116 and chiller 1 18, including shaft rpm and torque.
  • the shaft distribution from power split device 114 may frequently change as a function of fluctuations in the electrical loads and the cooling loads. Moreover, the distribution may change depending on an operating mode of controller 120 (i.e. whether controller 120 is operating in a mode in which priority is given to motor/generator 116 over chiller 118, or vice versa).
  • the demands on chiller system 118 are monitored by supervisory controller 154, whereas the electrical load is monitored through power controller 120. This data, in combination, may be used to control the mechanical energy split by power split device 1 14 and the electrical energy split by power controller 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

La présente invention concerne un système combiné de chaleur et puissance (CHP) (10) qui comprend une source d'alimentation mécanique (12) ayant une sortie d'arbre mécanique configurée pour produire une énergie d'arbre mécanique. Un dispositif à énergie séparée (14) est couplé à la sortie de l'arbre mécanique et est configuré pour distribuer de manière variable l'énergie d'arbre mécanique à un moteur/générateur (16) et un refroidisseur (18). Le moteur/générateur (16) est couplé au dispositif à énergie séparée (14) et configuré pour générer une énergie électrique de l'énergie d'arbre mécanique. Le refroidisseur (18) est couplé au dispositif à énergie séparée (14) et configuré pour générer un liquide réfrigéré depuis l'énergie d'arbre mécanique.
PCT/US2006/049588 2006-12-28 2006-12-28 Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp) WO2008082388A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2006/049588 WO2008082388A1 (fr) 2006-12-28 2006-12-28 Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/049588 WO2008082388A1 (fr) 2006-12-28 2006-12-28 Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp)

Publications (1)

Publication Number Publication Date
WO2008082388A1 true WO2008082388A1 (fr) 2008-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049588 WO2008082388A1 (fr) 2006-12-28 2006-12-28 Dispositif à énergie séparée pour un système de chaleur et puissance combiné (chp)

Country Status (1)

Country Link
WO (1) WO2008082388A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012085093A1 (fr) * 2010-12-24 2012-06-28 Robert Bosch Gmbh Installation à récupération de chaleur perdue
EP2551478A1 (fr) * 2010-03-24 2013-01-30 Sanden Corporation Système permettant d'utiliser la chaleur dégagée par un moteur à combustion interne, et moteur-générateur l'utilisant
CN103542611A (zh) * 2013-11-06 2014-01-29 深圳市庄合智能产业科技有限公司 一种医院专用智慧能源系统
CN103542609A (zh) * 2013-11-06 2014-01-29 巢民强 一种学校专用智慧能源系统
CN103542610A (zh) * 2013-11-06 2014-01-29 巢民强 一种别墅专用智慧能源系统
CN103542608A (zh) * 2013-11-06 2014-01-29 巢民强 一种工厂专用智慧能源系统
CN103557631A (zh) * 2013-11-06 2014-02-05 巢民强 一种船舶专用智慧能源系统
CN103557629A (zh) * 2013-11-06 2014-02-05 巢民强 一种办公楼专用智慧能源系统
EP3303780A4 (fr) * 2015-05-06 2019-01-02 Trienco Ltd. Système et procédé de gestion d'énergie électrique dynamique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590384A (en) * 1983-03-25 1986-05-20 Ormat Turbines, Ltd. Method and means for peaking or peak power shaving
US5391925A (en) * 1993-09-10 1995-02-21 Trigen Energy Corporation Prime mover driven compressor/chiller with motor on common shaft for large cooling systems
US20050262865A1 (en) * 2004-05-27 2005-12-01 Aisin Seiki Kabushiki Kaisha Air-conditioning and electric energy generating system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590384A (en) * 1983-03-25 1986-05-20 Ormat Turbines, Ltd. Method and means for peaking or peak power shaving
US5391925A (en) * 1993-09-10 1995-02-21 Trigen Energy Corporation Prime mover driven compressor/chiller with motor on common shaft for large cooling systems
US20050262865A1 (en) * 2004-05-27 2005-12-01 Aisin Seiki Kabushiki Kaisha Air-conditioning and electric energy generating system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551478A1 (fr) * 2010-03-24 2013-01-30 Sanden Corporation Système permettant d'utiliser la chaleur dégagée par un moteur à combustion interne, et moteur-générateur l'utilisant
EP2551478A4 (fr) * 2010-03-24 2014-06-11 Sanden Corp Système permettant d'utiliser la chaleur dégagée par un moteur à combustion interne, et moteur-générateur l'utilisant
WO2012085093A1 (fr) * 2010-12-24 2012-06-28 Robert Bosch Gmbh Installation à récupération de chaleur perdue
CN103270254A (zh) * 2010-12-24 2013-08-28 罗伯特·博世有限公司 废热利用设备
CN103270254B (zh) * 2010-12-24 2015-09-23 罗伯特·博世有限公司 废热利用设备
CN103542611A (zh) * 2013-11-06 2014-01-29 深圳市庄合智能产业科技有限公司 一种医院专用智慧能源系统
CN103542609A (zh) * 2013-11-06 2014-01-29 巢民强 一种学校专用智慧能源系统
CN103542610A (zh) * 2013-11-06 2014-01-29 巢民强 一种别墅专用智慧能源系统
CN103542608A (zh) * 2013-11-06 2014-01-29 巢民强 一种工厂专用智慧能源系统
CN103557631A (zh) * 2013-11-06 2014-02-05 巢民强 一种船舶专用智慧能源系统
CN103557629A (zh) * 2013-11-06 2014-02-05 巢民强 一种办公楼专用智慧能源系统
EP3303780A4 (fr) * 2015-05-06 2019-01-02 Trienco Ltd. Système et procédé de gestion d'énergie électrique dynamique

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