FI124755B - Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa - Google Patents

Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa Download PDF

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Publication number
FI124755B
FI124755B FI20136124A FI20136124A FI124755B FI 124755 B FI124755 B FI 124755B FI 20136124 A FI20136124 A FI 20136124A FI 20136124 A FI20136124 A FI 20136124A FI 124755 B FI124755 B FI 124755B
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FI
Finland
Prior art keywords
heat exchanger
heat
heating
flow
circuit
Prior art date
Application number
FI20136124A
Other languages
English (en)
Swedish (sv)
Other versions
FI20136124A (fi
Inventor
Jan Andersson
Original Assignee
Wärtsilä Finland Oy
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 Wärtsilä Finland Oy filed Critical Wärtsilä Finland Oy
Priority to FI20136124A priority Critical patent/FI124755B/fi
Priority to EP14816350.4A priority patent/EP3077652B1/en
Priority to PCT/FI2014/050825 priority patent/WO2015071533A1/en
Application granted granted Critical
Publication of FI20136124A publication Critical patent/FI20136124A/fi
Publication of FI124755B publication Critical patent/FI124755B/fi

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/70—Electric generators driven by internal combustion engines [ICE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
    • F24D2103/13—Small-scale CHP systems characterised by their heat recovery units characterised by their heat exchangers
    • 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]
    • Y02B30/17—District heating
    • 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]
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Description

System for recovering heat in a CHP-plant
TECHNICAL FIELD
[001] The present invention concerns a system for recovering heat from a combined heat and power plant comprising internal combustion engine, said system comprising: - an exhaust heat exchanger is provided for recovering heat from exhaust gases of the engine, - a cooling liquid heat exchanger is provided for recovering heat from a cooling liquid circuit of the engine, - a lubrication oil heat exchanger is provided for recovering heat from a lubrication oil circuit of the engine, - said exhaust heat exchanger, cooling liquid heat exchanger and lubrication oil heat exchanger are connected in a heating circuit having also a district heating heat exchanger for providing heat to a district heating consumer circuit.
BACKGROUND OF THE INVENTION
[002] A combined heat and power plant (CHP-plant) comprises basically an internal combustion engine which runs on gas or liquid fuel and thus converts chemical energy in to both electric and thermal energy. As the amount of electric energy available from an internal combustion engine is limited for being around 30% to 50%, the rest of the energy released from the fuel is in the form of thermal energy i.e. heat. Thus the better the heat recovery and utilization is from the CHP-plant the better is the overal efficiency.
[003] A patent document DE2726971 A1 discloses that a district heating power station has a gas turbine, the exhaust gases of which flow through a waste heat boiler and an aftercooler in succession before being led to the chimney as flue gases. By means of an intermediate circuit the exhaust gas heat is transmitted in a heat exchanger to the energy transfer medium of a district heating network, this energy transfer medium, with the aid of a series connection, first flowing through the aftercooler and then through the heat exchanger. The utilisation factor E of the district heating power station can thereby be successfully improved.
SUMMARY OF THE INVENTION
[004] The objective of the present invention is to improve the efficiency of a combined heat and power plant.
[005] The present invention is characterized by what is said in the characterizing part of the patent claim 1. Thus the present invention concerns a system for recovering heat from a combined heat and power plant comprising an internal combustion engine and a heating circuit for heating liquid to circulate, said system comprising: - an exhaust heat exchanger is provided for recovering heat from exhaust gases of the engine, - a cooling liquid heat exchanger is provided for recovering heat from a cooling liquid circuit of the engine, - a lubrication oil heat exchanger is provided for recovering heat from a lubrication oil circuit of the engine, - said exhaust heat exchanger, cooling liquid heat exchanger and lubrication oil heat exchanger are connected in the heating circuit having also a district heating heat exchanger for providing heat to a district heating consumer network, characterised in that, - the cooling liquid heat exchanger and the lubrication oil heat exchanger are connected in a channel parallel to a channel wherein the exhaust heat exchanger is connected, so that the heating liquid flow after the district heating heat exchanger can be divided in said parallel channels.
[006] The present system enables an improved efficiency due to the better control of the different heat exchangers of the CHP-plant. This better control enables high temperature differences (i.e. change of temperature of a medium flowing through the heat exchanger, both in a primary circuit and in a secondary circuit of the heat exchanger) over the heat exchangers and thus maximal heat recovery from various heat sources of the CHP-plant to the heating liquid running through the heat exchangers and then distributed further to the district heating consumer circuit. Thus the present invention achieves the objective of improving the efficiency of a CHP-plant. Furthermore the present invention may reduce a need to use of a separate exhaust gas economizer/aftercooler in certain applications.
[007] According to an embodiment the heating circuit comprise means to control the division of the flow to the parallel channels. The purpose of this feature is to ensure that the running parameters are as efficient as possible. The temperatures of returning lubrication oil and cooling liquid to the engine need to be maintained within a certain range and therefore it is preferred to take all excess heat away, but not more so that the returning lubrication oil or cooling liquid temperature is at the lower limit of the operational range for the engine. That is possible by dividing the flow to said parallel channels and controlling the amount of flow in each channel.
[008] The previously explained flow division can be done by different flow controlling means and among the preferred embodiments are the following. The channel to exhaust heat exchanger comprises a pump for controlling the flow in said channel. Another embodiment which can be instead or in addition to the previous one is that the channel to the cooling liquid heat exchanger comprises a pump for controlling the flow in said channel. If there are pumps in both channels the division of the flows is relatively simple to control. Also according to an embodiment an intersection (or proximity of an intersection) of the channels comprises a non-return valve to prevent the heating liquid to circulate in an opposite direction. Thus the flows circulate always to the correct designed direction.
[009] According to an embodiment the district heating heat exchanger is provided with a bypass channel for bypassing or to regulate the flow or temperature difference over the district heating heat exchanger. This enables an optimal heat transfer from the CHP-plant to the district heating consumer network.
BRIEF DESCRIPTION OF THE DRAWINGS
[010] The present invention and its embodiments are in the following presented in connection with the attached drawings wherein:
Fig. 1 presents a basic configuration of the present system,
Fig. 2 presents a further embodiment ot the present system,
Fig. 3 presents still a further embodiment ot the present system.
DETAILLED DESCRIPTION
[011] In Fig. 1 it is presented a system for recovering heat from a combined heat and power plant comprising an internal combustion engine 1 and a heat- ing circuit 60 for heating liquid L to circulate, said system comprising: - an exhaust heat exchanger 2 is provided for recovering heat from exhaust gases 10 of the engine 1, - a cooling liquid heat exchanger 3 is provided for recovering heat from a cooling liquid circuit 30 of the engine 1, - a lubrication oil heat exchanger 4 is provided for recovering heat from a lubrication oil circuit 40 of the engine 1, - said exhaust heat exchanger 2, cooling liquid heat exchanger 3 and lubrication oil heat exchanger 4 are connected in the heating circuit 60 having also a district heating heat exchanger 5 for providing heat to a district heating consumer network 50, - the cooling liquid heat exchanger 3 and the lubrication oil heat exchanger 4 are connected in a channel 601 parallel to a channel 602 wherein the exhaust heat exchanger 2 is connected, so that the heating liquid L flow after the district heating heat exchanger 5 can be divided in said parallel channels 601, 602.
[012] The system of fig. 1 enables a very high temperature difference over the heat exchangers 2, 3, 4. This very high temperature difference is achieved so that the heating liquid flowing into the heat exchanger is as cool as possible and then it can receive the maximum amount of heat from the other circuit or medium i.e. from the exhaust gas, engine cooling liquid or lubrication oil. A detained study of the process has revealed that by separating the exhaust gas heat exchanger to a parallel channel from the channel comprising the cooling liquid heat exchanger 3 and the lubrication oil heat exchanger 4, the inlet temperature of the heating liquid to said heat exchangers 2, 3, 4 can be decreased so that the high temperature difference can be achieved. By configuring the cooling liquid heat exchanger 3 and the lubrication oil heat exchanger 4 so that these are connected in series it is possible to maintain the proper operational temperature of the lubrication oil and cooling liquid but still achieve the high efficiency of the heat recovery.
[013] In Fig. 2 it is presented an embodiment similar to what is presented at Fig. 1 but the heating circuit 60 comprise means 61, 62 to control the division of the flow to the parallel channels 601, 602. The embodiment presents that the channel 602 to exhaust heat exchanger 2 comprises a pump 62 for controlling the flow in said channel 602. The system can be operated with only one pump, but a better controllability can be achieved if also the channel 601 to the cooling liquid heat exchanger 3 comprises a pump 61 for controlling the flow in said channel 601. These embodiments enables thus very good control over the heat exchangers 2, 3 and 4 and makes it possible to deliver high temperature heating liquid L to the district heating heat exchanger 5.
[014] In Fig. 3 it is presented still a further embodiment of figures 1 and 2. The district heating heat exchanger 5 is provided with a bypass channel 51 for bypassing or to regulate the flow or temperature difference over the district heating heat exchanger 5. This feature gives more controllability of the heat delivery to the district heating consumer network 50. In addition, it can be used for example in pre-heating phase of of the CHP-plant etc. Still according to an embodiment of the system an intersection of the channels 601,602 comprises a non-return valve 63 to prevent the heating liquid L to circulate in an opposite direction. This feature helps to maintain the steady flow circumstances and it is independent of the other further embodiments of the present system as described above ot at the dependent patent claims.
[015] As evident to those skilled in the art, the invention and its embodiments are not limited to the above-described embodiment examples. Expressions representing the existence of characteristics, such as "the engine comprises a cooling liquid circuit", are non-restrictive such that the description of characteristics does not exclude or prerequisite the existence of such other characteristics which are not presented in the independent or dependent claims.
Reference signs used in figures 1 engine 10 exhaust gases 2 exhaust heat exchanger 3 cooling liquid heat exchanger 30 cooling liquid circuit 4 lubrication oil heat exchanger 40 lubrication oil circuit 5 district heating heat exchanger 50 district heating consumer network 51 bypass channel 60 heating circuit 601 channel 602 channel 61 pump 62 pump 63 non-return valve 7 auxiliary boiler L heating liquid

Claims (6)

1. Järjestelmä lämmön talteenottamiseksi lämpövoimalaitoksesta, joka käsittää polttomoottorin (1) ja lämmityspiirin (60) lämmitysnesteen (L) kiertoa varten, jolloin mainittu järjestelmä käsittää - pakokaasulämmönvaihtimen (2), joka on järjestetty lämmön talteenottamiseksi moottorin (1) pakokaasuista (10), - jäähdytysnestelämmönvaihtimen (3), joka on järjestetty lämmön talteenottamiseksi moottorin (1) jäähdytysnestepiiristä (30), - voiteluöljylämmönvaihtimen (4), joka on järjestetty lämmön talteenottamiseksi moottorin (1) voiteluöljypiiristä (40), -jolloin mainittu pakokaasulämmönvaihdin (2), jäähdytysnestelämmönvaihdin (3) ja voiteluöljylämmönvaihdin (4) on yhdistetty lämmityspiirissä (60), joka käsittää myös kaukolämmön lämmönvaihtimen (5) lämmön tarjoamiseksi kauko-lämpökuluttajaverkkoon (50), tunnettu siitä, että - jäähdytysnestelämmönvaihdin (3) ja voiteluöljylämmönvaihdin (4) on kytketty kanavassa (601), joka on rinnakkainen kanavan (602) kanssa, johon pakokaasulämmönvaihdin (2) on yhdistetty, niin, että lämmitysnesteen (L) virtaus voidaan kaukolämmön lämmönvaihtimen (5) jälkeen jakaa mainituissa rinnakkaisissa kanavissa (601,602).
2. Patenttivaatimuksen 1 järjestelmä, tunnettu siitä, että lämmityspiiri (60) käsittää välineet (61,62) virtauksen jakamisen rinnakkaisiin kanaviin (601, 602. ohjaamiseksi.
3. Patenttivaatimuksen 2 järjestelmä, tunnettu siitä, että pakokaasuläm-mönvaihtimeen (2) johtava kanava (602) käsittää pumpun (62) virtauksen ohjaamiseksi mainitussa kanavassa (602).
4. Patenttivaatimuksen 1 järjestelmä, tunnettu siitä, että jäähdytysneste-lämmönvaihtimeen (3) johtava kanava (601) käsittää pumpun (61) virtauksen ohjaamiseksi mainitussa kanavassa (601).
5. Patenttivaatimuksen 1 järjestelmä, tunnettu siitä, että kaukolämmitys-lämmönvaihdin (5) on varustettu ohituskanavalla (51) ohitusta tai virtaus- tai lämpötilaeron kaukolämmön lämmönvaihtimen (5) yhteydessä säätelemistä varten.
6. Patenttivaatimuksen 1 järjestelmä, tunnettu siitä, että kanavien (601, 602) risteämiskohta käsittää suuntaisventtiilin (63) lämmitysnesteen (L) kierron vastakkaiseen suuntaan estämiseksi.
FI20136124A 2013-11-15 2013-11-15 Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa FI124755B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20136124A FI124755B (fi) 2013-11-15 2013-11-15 Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa
EP14816350.4A EP3077652B1 (en) 2013-11-15 2014-11-04 System for recovering heat in a chp-plant
PCT/FI2014/050825 WO2015071533A1 (en) 2013-11-15 2014-11-04 System for recovering heat in a chp-plant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20136124 2013-11-15
FI20136124A FI124755B (fi) 2013-11-15 2013-11-15 Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa

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FI20136124A FI20136124A (fi) 2015-01-15
FI124755B true FI124755B (fi) 2015-01-15

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FI20136124A FI124755B (fi) 2013-11-15 2013-11-15 Järjestelmä lämmön talteenottamiseksi sähkön- ja lämmöntuotantolaitoksessa

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EP (1) EP3077652B1 (fi)
FI (1) FI124755B (fi)
WO (1) WO2015071533A1 (fi)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA141780U (uk) * 2019-10-21 2020-04-27 Іван Іванович Котурбач Дизель-парова електростанція
US11859834B2 (en) 2020-10-07 2024-01-02 Axiom Energy Group, LLC Micro-combined heat and power system with exterior generator and heating system compatibility and method of use

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH617984A5 (en) 1977-05-10 1980-06-30 Bbc Brown Boveri & Cie District heating power station with gas turbine
DE3406355A1 (de) * 1984-02-22 1985-08-22 Fa. Rud. Otto Meyer, 2000 Hamburg Verfahren zur temperatur-regelung fuer motor-zulauf und heizungs-vorlauf von blockheizkraftwerken und anordnung zur durchfuehrung des verfahrens
US6729133B1 (en) * 2003-02-03 2004-05-04 Chapeau, Inc. Heat transfer system for a co-generation unit
DE102007063141A1 (de) * 2007-12-26 2009-07-02 Schwieger Piper Wichmann GbR (vertretungsberechtigter Gesellschafter: John Piper, 31311 Uetze Heizungsvorrichtung zum Beheizen eines Gebäudes mittels einer von einer Verbrennungskraftmaschine angetriebenen Wärmepumpe
JP2009293447A (ja) * 2008-06-03 2009-12-17 Honda Motor Co Ltd コージェネレーション装置

Also Published As

Publication number Publication date
FI20136124A (fi) 2015-01-15
EP3077652A1 (en) 2016-10-12
WO2015071533A1 (en) 2015-05-21
EP3077652B1 (en) 2017-10-11

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