SE540641C2 - A WHR system for a vehicle and a vehicle comprising such a system - Google Patents

A WHR system for a vehicle and a vehicle comprising such a system

Info

Publication number
SE540641C2
SE540641C2 SE1651544A SE1651544A SE540641C2 SE 540641 C2 SE540641 C2 SE 540641C2 SE 1651544 A SE1651544 A SE 1651544A SE 1651544 A SE1651544 A SE 1651544A SE 540641 C2 SE540641 C2 SE 540641C2
Authority
SE
Sweden
Prior art keywords
working medium
condenser
temperature
whr
cooling
Prior art date
Application number
SE1651544A
Other languages
Swedish (sv)
Other versions
SE1651544A1 (en
Inventor
Kardos Zoltan
Ussner Matthias
Timren Thomas
Linderyd Johan
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1651544A priority Critical patent/SE540641C2/en
Priority to PCT/SE2017/051031 priority patent/WO2018097780A1/en
Priority to DE112017005170.3T priority patent/DE112017005170B4/en
Publication of SE1651544A1 publication Critical patent/SE1651544A1/en
Publication of SE540641C2 publication Critical patent/SE540641C2/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02GHOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02Profiting from waste heat of exhaust gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02Plants 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
    • F01K23/06Plants 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
    • F01K23/065Plants 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 the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02Plants 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
    • F01K23/06Plants 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
    • F01K23/10Plants 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 with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/101Regulating means specially adapted therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08Plants 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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

The present invention relates to a WHR- system for a vehicle. The WHR- system comprises a pump (3) configured to pressurize and circulate a working medium in a closed circuit (4), an evaporator (5) in which the working medium is configured to be heated and evaporated, an expander (7) in which the working medium is configured to expand and a condenser (13) in which the working medium is configured to be cooled and condensed. The condenser (13) is made by aluminum and that the WHR system comprises a cooling arrangement configured to cool the working medium such that it has a temperature when it enters the aluminum condenser at which the working medium is deemed to be harmless to the aluminum condenser (13).

Description

A WHR system for a vehicle and a vehicle comprising such a system BACKGROUND OF THE INVENTION AND PRIOR ART The present invention relates to a WHR system for a vehicle according to the preamble of claim 1.
A WHR system (Waste Heat Recovery System) can be used in vehicles for recovering waste thermal energy and convert it to mechanical energy or electric energy. A WHR system includes a pump which pressurizes and circulates a working medium in a closed circuit. The circuit comprises one or several evaporators where the working medium is heated and evaporated by one or several heat sources such as, for example, the exhaust gases from a combustion engine. The pressurized and heated gaseous working medium is directed to an expander where it expands. The expander generates mechanical energy which can be used to operate the vehicle or apparatuses on the vehicle. Alternatively, the expander is connected to a generator generating electric energy. The working medium leaving the expander is directed to a condenser. The working medium is cooled down in the condenser to a temperature at which it condenses. The liquefied working medium is redirected to the pump which pressurizes the medium. Thus, the waste heat energy from, for example, the exhaust gases from a combustion engine in a vehicle can be recovered by means of a WHR-system.
Consequently, a WHR-system can reduce the fuel consumption of a combustion engine. Usually, a condenser in a WHR system is made by stainless steel in order to be resistant against high pressures, high temperatures and a corrosive working medium such as ethanol. Stainless steel is a relatively expensive material and it heat transfer properties are not exceptional. Consequently, a condenser of stainless steel is heavy and expensive.
US 2013/0186087 shows a waste heat recovery system for use with an internal combustion engine. The system comprises a recuperator operatively connected to a working fluid circuit downstream of an expander and upstream of a condenser to recover heat from the working fluid before the working fluid flows through the condenser. The recuperator delivers heat energy from the expanded working fluid to the working fluid downstream of the condenser.
SUMMARY OF THE INVENTION The object of the present invention is to provide a WHR system including an inexpensive condenser which has a low weight.
The above mentioned object is achieved by the WHR system according to claim 1. Aluminum is a relatively inexpensive material and it has exceptional heat transfer properties. In view of these facts, aluminum is a very suitable material to use in a condenser. However, it is not suitable to use an aluminum condenser at too high temperatures and pressures. Furthermore, aluminum may corrode in contact with certain working mediums. The corrosion resistance of aluminum is strongly related to the temperature of the working medium. It has been found that the corrosive resistance is acceptable when the temperature of the working medium entering the condenser is not too high. The WHR system comprises a cooling arrangement configured to cool the working medium such that the temperature of the working medium is prevented from rising to a level where it can be harmful to the aluminum condenser. With a suitable restriction of the temperature of the working medium directed to the condenser, the WHR system can be provided with a condenser of aluminum. In view of the initially mentioned properties of aluminum, such a condenser can have a low weight and be inexpensive.
According to an embodiment of the invention, the cooling arrangement is configured to prevent that the working medium entering the condenser at a temperature above a maximum allowable temperature. It is possible to determine a maximum temperature where the working medium is harmless to the aluminum condenser. In this case, the cooling arrangement can be activated during operating conditions when the temperature of the working medium approaches the maximum allowable temperature. During remaining operating conditions when the temperature of the working medium is well below the maximum allowable temperature, the cooling arrangement is not activated.
According to an embodiment of the invention, the cooling arrangement comprises a cooling component configured to cool the working medium in a position downstream of the expander and upstream of the condenser. In order to prevent that the working medium entering the condenser at a too high temperature, it is suitable to cool the working medium in said position.
According to an embodiment of the invention, the cooling arrangement is able to cool the working medium with a variable cooling capacity. In this case, it is possible to control the temperature of the working medium entering the condenser with a high precision. The cooling arrangement may comprise a temperature sensor sensing the temperature of the working medium, a control unit configured to receive information from the temperature sensor about the temperature of the working medium and a to control the supply of a cooling fluid to the cooling component in order to restrict the temperature of the working medium entering the condenser. By means of such a cooling arrangement it is relatively easy to control the temperature of the working medium entering the condenser.
According to an embodiment of the invention, the cooling component may be a heat exchanger in which the working medium is cooled by a coolant flow. In this case, it is possible to use coolant circulating in an existent cooling system cooling a combustion engine in a vehicle. Alternatively, the cooling component is a cooling coil in which the working medium is cooled by a cooling air flow. In this case, the cooling arrangement has a simple and reliable design. Preferably, such a heat exchanger and cooling coil are manufactured by stainless steel. The heat exchanger and the cooling coil may be relatively small in relation to the condenser since they only have the task to reduce the overheating of the gaseous working medium before it enters the condenser. The condensation process of the working medium has to be performed in the condenser. The control unit may be configured to control the speed of a fan forcing an air flow towards the cooling coil. In this case, it is possible to vary the cooling capacity of the working medium by varying the cooling air flow rate towards the cooling coil.
According to an embodiment of the invention, the working medium in the WHR-system is ethanol. Ethanol has an evaporation temperature of about 78°C at 1 bar. It is relatively easy to accomplish a coolant temperature at a suitable level below the evaporation temperature of ethanol and cool the ethanol in a condenser to a condensation temperature just above 78°C. However, ethanol is very corrosive to aluminum at high temperature. In this case, it is very important to restrict the temperature of the working medium to a suitable maximum temperature where the ethanol is harmless to the aluminum condenser. A maximum acceptable temperature at about 150°C is suitable in this case. During the most operating conditions, the temperature of the working medium leaving the expander is lower than 150°C. Higher temperature of the working medium may, for example, occur when the expander is pre-heated for a start up to avoid condensation on a cold surface of the expander. However, it is possible to use other working mediums such as for example R245fa.
According to an embodiment of the invention, the working medium is heated in an evaporator of the WHR-system by means of exhaust gases from a combustion engine. The exhaust gases from a combustion engine contains a lot of heat energy, which usually is supplied to the environment. By means of a WHR-system, it is possible to recover a large part of the heat energy in the exhaust gases. Due to the high temperatures of the exhaust gases, the WHR system may comprise an evaporator manufactured by stainless steel.
BRIEF DESCRIPTION OF THE DRAWING In the following a preferred embodiment of the invention is described, as an example, with reference to the attached drawing, in which: Fig. 1 shows a WHR system according to a first embodiment of the invention and Fig. 2 shows a WHR system according to a second embodiment of the invention.
DETAIFED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Fig. 1 shows a combustion engine 2 powering a schematically disclosed vehicle 1. The combustion engine 2 may be a diesel engine. The vehicle 1 may be a heavy vehicle. The vehicle is provided with a WHR-system (Waste Heat Recovery system). The WHR- system comprises a pump 3 which pressurizes and circulates a working medium in a closed a circuit 4. In this case, the working medium is ethanol. However, it is possible to use other kinds of working mediums such as for example R245fa. The pump 3 circulates the working medium to an evaporator 5. The working medium is heated in the evaporator 5 by exhaust gases directed out the combustion engine 2 in an exhaust line 6. The exhaust line 6 comprises a bypass line 6a and a valve 6b by which it is possible to direct a variable part of the exhaust gases past the evaporator 5. An exhaust line 6 directs exhaust gases from the combustion engine 2. The exhaust line 6 may comprise components which are not indicated in Fig. 1 such as a turbine of a turbo charger and exhaust gas treatment components. The working medium is heated in the evaporator 5 by the exhaust gases to a temperature at which it evaporates. The evaporator is made of stainless steel. The working medium is circulated from the evaporator 5 to an expander 7.
The pressurized and heated working medium is expanded in the expander 7. The expander 7 generates a rotary motion which is transmitted, via a suitable mechanical transmission 8a, to a shaft 8b of the power train of the vehicle 1. Alternatively, the expander 7 may be connected to a generator transforming mechanical energy into electrical energy. The electrical energy may be stored in a battery. After the working medium has passed through the expander 7, it is directed to a cooling coil 9 where it may be cooled by a cooling air flow provided by a 10. The fan 10 is driven by an electric motor 11. The electric motor 11 may drive the fan 10 with a variable speed. The speed of the fan 10 and the air flow rate directed to the cooling coil 9 may be changed in a stepless manner. Thus, the cooling capacity of the working medium in the cooling coil 9 may also be changed in a stepless manner.
A temperature sensor 12 senses the temperature of the working medium in a position downstream of the cooling coil 9 and upstream of a condenser 13. The condenser 13 is made by aluminum. A control unit 14 receives information from the temperature sensor 12 and controls the electric motor 11 and the fan 10 in view of this information such that the working medium is cooled to a suitable temperature before it enter the condenser 13. The control unit 10 may also control the operation of the pump 3 and the expander 7. The working medium is cooled in the condenser 13 by coolant circulating in a cooling circuit 15 to a temperature at which it condenses. The coolant may have a temperature of about 70°C. The condensed working medium is directed from the condenser 13 to a tank 16. The pump 3 sucks working medium from the tank 16 and direct it to the evaporator 5. The WHR-system makes it possible to transform thermal energy from the exhaust gases to mechanical energy or electrical energy.
A condenser of a conventional WHR system is made by stainless steel such that it is able to withstand high pressures, high temperatures and a corrosive working medium such as ethanol. However, stainless steel has lower heat transfer properties than aluminum, it is more expensive than aluminum and it has a higher weight. Thus, a condenser of stainless steel with corresponding capacity as a condenser made of aluminum has to be significantly larger, heavier, and more expensive. On the other hand, a condenser of aluminum have a lower resistance to high temperatures and pressures. Furthermore, aluminum is very corrosive to certain a working medium such as ethanol at high temperatures. In order to provide a WHR system comprising a small, lightweight and inexpensive aluminum condenser and a working medium in the form of ethanol, the temperature of the working medium shall not be higher than a maximum allowable temperature. Such a maximum allowable temperature is in this case about 150°C. At higher temperatures of the working medium, there is a great risk of corrosion of aluminum condenser.
During operation of the combustion engine 2, it is desired to maintain a high thermal efficiency in the WHR-system. In order to maintain a high thermal efficiency of the WHR system, the working medium is to be cooled in the condenser 13 to a condensation pressure as low as possible. However, it is suitable to avoid negative pressure in the WHR-system by practical reasons. In view of these facts, it is suitable to cool of the working medium in the condenser 13 to a condensation pressure just above 1 bar. Consequently, in order to maintain a high thermal efficiency, the control unit 14 may control the temperature and/or the coolant flow in the circuit 15 to the condenser 13 such that the condensation pressure will be just above 1 bar. The working medium ethanol has a condensation temperature of 78°C at the condensation pressure 1 bar. In this case, it is suitable to accomplish a condensation temperature of just above 78°C in the condenser 13. The control unit 14 receives continuously information from the temperature sensor 12 about the temperature of the working medium entering the condenser 13. As soon as the control unit 14 receives information indicating that the working medium has a temperature which is well below 150°C, there is no reason to start the fan 9.
During operating conditions when the control unit 14 receives information from the temperature sensor 12 indicating that the working medium has a temperature close to the maximum allowable temperature, it activates the electric motor 11 and the fan 10 such that it forces a suitable cooling air flow through the cooling coil 9. The cooling air flow cools the working medium such that it obtains a somewhat lower than said maximum allowable temperature. The control unit 14 may control the electric motor 1 1 and the fan 10 such a variable air flow rate cools the working medium in the cooling coil 9. In this case, it is possible to maintain a suitable temperature of the working medium with a high precision. During operating conditions when the control unit 14 receives information from the temperature sensor 12 indicating that the working medium has temperature well below the maximum allowable temperature, it does not activate the electric motor 11 and the fan 10.
Fig. 2 shows an alternative embodiment of the WHR system. In this case, the working medium is cooled in a heat exchanger 17 by a circulating coolant. The coolant circulates in a circuit 18 connected to a cooling system cooling the combustion engine 2. The coolant may have a temperature of about 90-110°C when it enters the heat exchanger 17. The control unit 14 controls the supply of the coolant to the heat exchanger 17 by means of a valve 19. The heat exchanger 17 is made of stainless steel. The heat exchanger 17 is small in relation to the condenser 13 since the task of the heat exchanger 17 is only to cool overheated gaseous working medium such that it does not have a temperature above 150°C when it enters the condenser 13. Also in this case, it is possible to provide a WHR system comprising aluminium condenser 13.
The invention is not restricted to the described embodiment but may be varied freely within the scope of the claims.

Claims (8)

Claims
1. A WHR-system for a vehicle (1), wherein the WHR system comprises a pump (3) configured to pressurize and circulate a working medium in a closed circuit (4), an evaporator (5) in which the working medium is configured to be heated and evaporated, an expander (7) in which the working medium is configured to expand and a condenser (13) in which the working medium is configured to be cooled and condensed, characterized in that the condenser (13) is made by aluminum, that the WHR system comprises a cooling arrangement configured to cool the working medium such that it has a temperature when it enters the aluminum condenser at which the working medium is deemed to be harmless to the aluminum condenser (13), that the cooling arrangement is configured to prevent that the working medium entering the condenser (13) at a temperature above a maximum allowable temperature and that the cooling arrangement comprises a temperature sensor (12) sensing the temperature of the working medium, a cooling component (9, 17) configured to cool the working medium in a position downstream of the expander (7) and upstream of the condenser (13), a control unit (14) configured to receive information from the temperature sensor (12) about the temperature of the working medium and to control the supply of a cooling fluid to the cooling component (9, 17) in order to restrict the temperature of the working medium entering the condenser (13).
2. A WHR system according to claim 1, characterized in that the cooling arrangement is able to cool the working medium with a variable cooling capacity.
3. A WHR system according to claim 1 or 2, characterized in that the cooling component is a heat exchanger (17) in which the working medium is cooled by a coolant flow.
4. A WHR system according to any one of the preceding claims, characterized in that the cooling component is cooling coil (9) in which the working medium is cooled by a cooling air flow.
5. A WHR system according to claim 4, characterized in that the control unit (14) is configured to control the speed of a fan (10) forcing an air flow towards the cooling coil (9).
6. A WHR system according to any one of the preceding claims, characterized in that the working medium in the WHR-system is ethanol.
7. A WHR system according to any one of the preceding claims, characterized in that the working medium is heated in an evaporator (5) of the WHR-system by means of exhaust gases from a combustion engine (2).
8. A vehicle, characterized in that it comprises a WHR system according to any one of the preceding claims.
SE1651544A 2016-11-25 2016-11-25 A WHR system for a vehicle and a vehicle comprising such a system SE540641C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1651544A SE540641C2 (en) 2016-11-25 2016-11-25 A WHR system for a vehicle and a vehicle comprising such a system
PCT/SE2017/051031 WO2018097780A1 (en) 2016-11-25 2017-10-19 A whr system including an aluminium condenser
DE112017005170.3T DE112017005170B4 (en) 2016-11-25 2017-10-19 WHR system with aluminum condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1651544A SE540641C2 (en) 2016-11-25 2016-11-25 A WHR system for a vehicle and a vehicle comprising such a system

Publications (2)

Publication Number Publication Date
SE1651544A1 SE1651544A1 (en) 2018-05-26
SE540641C2 true SE540641C2 (en) 2018-10-09

Family

ID=62196207

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1651544A SE540641C2 (en) 2016-11-25 2016-11-25 A WHR system for a vehicle and a vehicle comprising such a system

Country Status (3)

Country Link
DE (1) DE112017005170B4 (en)
SE (1) SE540641C2 (en)
WO (1) WO2018097780A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868809B1 (en) * 2004-04-09 2008-07-04 Armines Ass Pour La Rech Et Le SYSTEM FOR RECOVERING THE THERMAL ENERGY OF A THERMAL MOTOR VEHICLE BY IMPLEMENTING A RANKINE CYCLE PRODUCING MECHANICAL AND / OR ELECTRICAL ENERGY BY MEANS OF A TURBINE
US9046006B2 (en) 2010-06-21 2015-06-02 Paccar Inc Dual cycle rankine waste heat recovery cycle
WO2012009526A1 (en) 2010-07-14 2012-01-19 Mack Trucks, Inc. Waste heat recovery system with partial recuperation
CN201837261U (en) * 2010-10-12 2011-05-18 无锡市广运环保机械有限公司 Special device for power generation by using high-temperature high-dust-content flue gas waste heat in metallurgical furnace
EP2993316A1 (en) 2012-10-17 2016-03-09 Norgren Limited Waste heat recovery system
JP6044529B2 (en) * 2013-12-05 2016-12-14 トヨタ自動車株式会社 Waste heat recovery device
WO2016069707A1 (en) * 2014-10-31 2016-05-06 Modine Manufacturing Company Cooling module and rankine cycle waste heat recovery system
GB201505231D0 (en) * 2015-03-27 2015-05-13 Norgren Ltd C A Heat energy recovery
DE102015016783A1 (en) * 2015-12-23 2016-08-11 Daimler Ag Device for recovering energy from waste heat of an internal combustion engine of a motor vehicle

Also Published As

Publication number Publication date
WO2018097780A1 (en) 2018-05-31
DE112017005170B4 (en) 2023-03-02
SE1651544A1 (en) 2018-05-26
DE112017005170T5 (en) 2019-07-11

Similar Documents

Publication Publication Date Title
US10787935B2 (en) Cooling arrangement for a WHR-system
US9932862B2 (en) Method and apparatus for heating an expansion machine of a waste heat recovery apparatus
EP3227536B1 (en) A cooling arrangement for a whr-system
JP6002417B2 (en) Waste heat recovery device
WO2011136118A1 (en) Exhaust heat recovery power generation device and vessel provided therewith
EP3093456B1 (en) Heat energy recovery system
WO2016069455A1 (en) System and method of low grade heat utilization for a waste heat recovery system
EP3532715B1 (en) A cooling system for cooling of a combustion engine and a whr system
KR102220071B1 (en) Boiler system
WO2019182498A1 (en) An arrangement and a method for controlling a shutdown phase of a whr-system
JP5527513B2 (en) Fluid machine drive system
EP3402964B1 (en) A cooling system for a combustion engine and a WHR system
WO2018097780A1 (en) A whr system including an aluminium condenser
EP3074613B1 (en) Supplemental heating in waste heat recovery
CN114846222A (en) Energy recovery device
WO2019147179A1 (en) An arrangement and a method for controlling of a whr system
SE540362C2 (en) An arrangement for recovering heat energy in exhaust gases from a combustion engine
AU2011201220A1 (en) A heat engine and reciprocating engine arrangement
SE540385C2 (en) A WHR system for recovering heat energy from a combustion engine
NO335332B1 (en) Method for quick start-up of hot gas or stirling engines