WO2007045324A1 - Procede d'utilisation d'une centrale thermique en montage bloc a huile vegetale - Google Patents

Procede d'utilisation d'une centrale thermique en montage bloc a huile vegetale Download PDF

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Publication number
WO2007045324A1
WO2007045324A1 PCT/EP2006/009311 EP2006009311W WO2007045324A1 WO 2007045324 A1 WO2007045324 A1 WO 2007045324A1 EP 2006009311 W EP2006009311 W EP 2006009311W WO 2007045324 A1 WO2007045324 A1 WO 2007045324A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
engine
exhaust gas
vegetable oil
Prior art date
Application number
PCT/EP2006/009311
Other languages
German (de)
English (en)
Inventor
Raimund WÜRZ
Original Assignee
Würz Energy GmbH
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 Würz Energy GmbH filed Critical Würz Energy GmbH
Priority to EP06792258A priority Critical patent/EP1941147A1/fr
Publication of WO2007045324A1 publication Critical patent/WO2007045324A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
    • F02M31/08—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air the gases being exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/26—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]
    • Y02B30/17—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
    • 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

Definitions

  • the invention relates to a method for operating a vegetable oil combined heat and power plant with an internal combustion engine that drives a generator, wherein the engine is associated with an engine control, which regulates the engine power.
  • Vegetable oil-powered combined heat and power plants are known in various designs. They have an internal combustion engine, which can usually be driven in diesel combustion mode. Instead of the diesel vegetable oil, such as rapeseed oil is burned in the engine. The resulting mechanical work is converted into electricity in a generator. The waste heat of the internal combustion engine can be exchanged via a heat exchanger in a heating system. Usually, a SoII value is set for the power output of the internal combustion engine, which the engine control starts via a control loop. In this control, the performance of the internal combustion engine is not optimally utilized.
  • the target value specification must take into account a safety margin compared to the maximum possible power output. This prevents that the internal combustion engine always operates in the permissible power range, regardless of external influences.
  • This object is achieved in that the engine power is regulated as a function of the exhaust gas temperature, wherein the exhaust gas temperature is maintained at a constant or approximately constant level.
  • the control of the engine operation takes place as a function of the exhaust gas and thus the combustion temperature.
  • This temperature is maintained at a uniform level, there are constant combustion conditions in the combustion chambers. In this way, the combustion process for the vegetable oil can be reproducibly kept uniform. It has been found that in this way a reliable combustion operation with low engine failure risk can be achieved.
  • this type of control also allows optimum power output.
  • the internal combustion engine can always deliver its optimum performance, the danger of thermal overloading of the internal combustion engine being always excluded.
  • the exhaust gas temperature in the combustion chamber of at least one cylinder of the internal combustion engine or in the exhaust line of the internal combustion engine is determined immediately after the combustion chamber.
  • the engine control can also be such that the measured exhaust gas temperature is compared with a predetermined or predefinable setpoint value, and that when the actual temperature value is above or below the setpoint value, an alarm signal is triggered and / or the engine operation is switched off.
  • the combustion chamber can be monitored for a regular burning operation and in the event of an impermissible deviation engine damage can be prevented.
  • each cylinder of the internal combustion engine is monitored with its own temperature sensor.
  • a possible variant of the invention is such that the vegetable oil supplied to the internal combustion engine is heated by means of a controllable fuel heater, and that the fuel heater is controlled as a function of the engine power or the exhaust gas temperature.
  • the vegetable oil is supplied to the internal combustion engine in a permissible temperature range, it has been shown that in this area, the temperature can be adjusted so that an optimized power output and thus an improvement in efficiency is possible.
  • the fuel heater is operated directly or indirectly by means of the waste heat emitted by the internal combustion engine.
  • the engine waste heat can be used so that the fuel heater is operated directly or indirectly by means of the waste heat emitted by the internal combustion engine. So that the internal combustion engine is already supplied with vegetable oil at the appropriate temperature during startup, it can be provided that the vegetable oil can be heated by means of a controllable electrical auxiliary device.
  • the power decrease can also be further increased if it is provided that the temperature of the internal combustion engine via the cooling circuit flowing coolant is adjusted by means of a control device.
  • the drawing shows in schematic representations an internal combustion engine 10 with eight cylinders 11.
  • the exhaust gas escaping from the cylinder 11 can be collected in an exhaust 13 and discharged into the environment.
  • the internal combustion engine 10 drives with its output shaft 14 a generator 12 in which electrical energy is generated.
  • the internal combustion engine 10 has a cooling circuit. This exchanges the waste heat via a heat exchanger 15 in a heating circuit 18, in which a heating system 19 and / or a thermal storage can be integrated.
  • the heat exchanger 15 may have a mixing arrangement. This has a connecting line which connects the flow and the return of the heat exchanger 15 supplied cooling circuit with each other.
  • the flow through the connecting line can be regulated by means of a controllable valve.
  • the valve control takes place as a function of the coolant temperature flowing to the internal combustion engine 10 in such a way that it is kept constant.
  • the internal combustion engine 10 is supplied with vegetable oil via a fuel supply line 16.1. To enable trouble-free operation, the vegetable oil must not fall below a certain temperature. For this reason, a fuel heater 16 is used.
  • Internal combustion engine 10 is additionally provided an electric heater which heats the vegetable oil.
  • the electric heater can be decoupled and the fuel heater 16 takes over their task.
  • the heating of the vegetable oil can be varied within a temperature range.
  • the fuel temperature is controlled such that an optimized output of the internal combustion engine 10 results.
  • each cylinder 11 is associated with its own temperature sensor. This measures the combustion temperature of the exhaust gas directly at the gas outlet of the cylinder 11. The measurement results are fed to the engine control. This forms an average value from the measurement results, which is subjected to a desired-actual-value comparison. The engine controller adjusts the power of the engine 10 by means of a control loop so that the target value is reached and maintained.
  • the temperature of the intake combustion air may vary. This has an immediate effect on the combustion temperature.
  • the motor control ensures that the combustion temperature remains constant by varying the power consumption generated at the generator 12. In this way, the internal combustion engine 10 can be kept constant at a thermal operating level and thereby the power output can be optimized.
  • combustion temperature may be the ambient temperature of the internal combustion engine 10, the cooling temperature and the fuel temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un procédé d'utilisation d'une centrale thermique en montage bloc à huile végétale, comportant un moteur à combustion interne entraînant un générateur. Une commande moteur régulant la puissance moteur est affectée au moteur à combustion interne. L'invention vise à obtenir une puissance utile optimisée et un fonctionnement plus fiable, sans panne. A cet effet, la puissance moteur est régulée en fonction de la température des gaz d'échappement, la température des gaz d'échappement étant maintenue à un niveau constant ou essentiellement constant.
PCT/EP2006/009311 2005-10-17 2006-09-26 Procede d'utilisation d'une centrale thermique en montage bloc a huile vegetale WO2007045324A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06792258A EP1941147A1 (fr) 2005-10-17 2006-09-26 Procede d'utilisation d'une centrale thermique en montage bloc a huile vegetale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005049875A DE102005049875B4 (de) 2005-10-17 2005-10-17 Verfahren zum Betrieb eines Pflanzenöl-Blockheizkraftwerks
DE102005049875.2 2005-10-17

Publications (1)

Publication Number Publication Date
WO2007045324A1 true WO2007045324A1 (fr) 2007-04-26

Family

ID=37492062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/009311 WO2007045324A1 (fr) 2005-10-17 2006-09-26 Procede d'utilisation d'une centrale thermique en montage bloc a huile vegetale

Country Status (3)

Country Link
EP (1) EP1941147A1 (fr)
DE (1) DE102005049875B4 (fr)
WO (1) WO2007045324A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008019728A1 (fr) * 2006-08-16 2008-02-21 Würz Energie Gmbh Procédé de fonctionnement d'un moteur à combustion INTERNE fonctionnant à l'huile végétale
WO2008067975A1 (fr) * 2006-12-08 2008-06-12 Würz Energy GmbH Ensemble de moteur fonctionnant à l'huile végétale

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108952996A (zh) * 2018-07-11 2018-12-07 浙江吉利汽车研究院有限公司 一种基于温差的车辆余热回收系统及车辆

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512211A (en) * 1937-11-22 1939-08-30 Edwin Schwarzenbach Improvements in and relating to the supply of a heated combustible mixture to internal combustion engines
JPS5898630A (ja) 1981-12-09 1983-06-11 Meidensha Electric Mfg Co Ltd 内燃力発電装置の運転制御方法
JPH02119608A (ja) * 1988-10-27 1990-05-07 Aisin Seiki Co Ltd 排気熱交換器
DE29616673U1 (de) * 1996-09-25 1997-02-13 Dipl.-Ing. G. Himbert Energie- und Umwelttechnik GmbH & Co, 66793 Saarwellingen Mobile Energieversorgungseinheit für den Feld- und Campingeinsatz
DE10339564A1 (de) 2002-08-28 2004-03-11 RÄSS, Martin Blockheizkraftwerk und Verfahren zum Betrieb desselben
DE202005009663U1 (de) * 2004-03-20 2005-09-22 RÄSS, Martin Blockheizkraftwerk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716299C1 (de) * 1997-04-18 1998-02-12 Zahnradfabrik Friedrichshafen Blockheizkraftwerk
DE19816415C2 (de) * 1998-04-14 2002-07-18 Rainer Mandel Blockheizkraftwerk

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512211A (en) * 1937-11-22 1939-08-30 Edwin Schwarzenbach Improvements in and relating to the supply of a heated combustible mixture to internal combustion engines
JPS5898630A (ja) 1981-12-09 1983-06-11 Meidensha Electric Mfg Co Ltd 内燃力発電装置の運転制御方法
JPH02119608A (ja) * 1988-10-27 1990-05-07 Aisin Seiki Co Ltd 排気熱交換器
DE29616673U1 (de) * 1996-09-25 1997-02-13 Dipl.-Ing. G. Himbert Energie- und Umwelttechnik GmbH & Co, 66793 Saarwellingen Mobile Energieversorgungseinheit für den Feld- und Campingeinsatz
DE10339564A1 (de) 2002-08-28 2004-03-11 RÄSS, Martin Blockheizkraftwerk und Verfahren zum Betrieb desselben
DE202005009663U1 (de) * 2004-03-20 2005-09-22 RÄSS, Martin Blockheizkraftwerk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008019728A1 (fr) * 2006-08-16 2008-02-21 Würz Energie Gmbh Procédé de fonctionnement d'un moteur à combustion INTERNE fonctionnant à l'huile végétale
WO2008067975A1 (fr) * 2006-12-08 2008-06-12 Würz Energy GmbH Ensemble de moteur fonctionnant à l'huile végétale

Also Published As

Publication number Publication date
EP1941147A1 (fr) 2008-07-09
DE102005049875A1 (de) 2007-04-19
DE102005049875B4 (de) 2007-07-12

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