WO2012038917A1 - Protection thermique de module thermoélectrique et/ou de générateur thermoélectrique au moyen de matériaux à changement de phase - Google Patents

Protection thermique de module thermoélectrique et/ou de générateur thermoélectrique au moyen de matériaux à changement de phase Download PDF

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Publication number
WO2012038917A1
WO2012038917A1 PCT/IB2011/054166 IB2011054166W WO2012038917A1 WO 2012038917 A1 WO2012038917 A1 WO 2012038917A1 IB 2011054166 W IB2011054166 W IB 2011054166W WO 2012038917 A1 WO2012038917 A1 WO 2012038917A1
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WO
WIPO (PCT)
Prior art keywords
phase change
change material
thermoelectric
thermoelectric generator
pipe
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Application number
PCT/IB2011/054166
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English (en)
Inventor
Jürgen MOORS
Original Assignee
Basf Se
Basf (China) Company Limited
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 Basf Se, Basf (China) Company Limited filed Critical Basf Se
Publication of WO2012038917A1 publication Critical patent/WO2012038917A1/fr

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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
    • F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat the device being thermoelectric generators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
    • 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

  • thermoelectric generator comprising at least one pipe which conducts a hot medium, and at least one thermoelectric module.
  • Offgas heat for example from power plants or motor vehicles, is frequently released to0 the environment unutilized. Effective use of this heat would, however, result in higher efficiency.
  • thermoelectric generators which, due to the Seebeck effect, sometimes also referred to as the thermoelectric effect, generate5 an electrical voltage in the open ends of two conductors connected to one another in the event of a temperature difference along the conductor.
  • TOGs thermoelectric generators
  • Devices for generating energy from offgas heat are known and are disclosed, for example, in DE 10 2008 005 334 A1 . 0 According to the process employed, offgas has temperatures between 200°C and 1000°C.
  • thermoelectric generators for example bismuth, telluride or lead telluride
  • a bypass which diverts the offgas as soon as the offgas temperature becomes too high for the materials used.5
  • thermoelectric generator The greater the temperature gradient across a thermoelectric generator, the greater the0 efficiency thereof. Both insulation and a bypass have the additional disadvantage that a considerable portion of the heat is released to the environment with no possibility of utilization.
  • thermoelectric generator5 comprising at least one pipe which conducts a hot medium and at least one thermoelectric module which can function fully even at high temperatures and nevertheless has high efficiency.
  • thermoelectric generator comprising at least one pipe0 which conducts a hot medium, and comprising at least one thermoelectric module, wherein the thermoelectric generator comprises at least one layer of a phase change material (PCM).
  • a layer of a phase change material means either one layer only of the at least one phase change material, or alternatively an alloy which comprises at least one phase change material.
  • This layer is preferably mounted between the pipe, for example an offgas pipe conducting a hot offgas stream, and the thermoelectric module.
  • the layer can be configured as an outer shell, for example an encapsulation, around the thermoelectric generator.
  • Another possible configuration of the solution proposed in accordance with the invention is to embed the at least one thermoelectric module of the thermoelectric generator into the layer or several layers of phase change material.
  • Phase change materials have the property of being able to regulate the temperature of their environment by storing heat. From a temperature T x adjustable by the production process, the material begins to melt and absorbs a large amount of heat as a result of its high heat of fusion. Provided that the entire phase change material has not melted, the temperature in the environment of the phase change material does not rise.
  • thermoelectric modules If the temperature of the hot medium rises above the temperature value T x , which is preferably below the temperature limit T L and which is critical for the functioning of the thermoelectric modules, there is a phase change, and this means that the phase change material melts and thus absorbs the excess heat Q E . This protects the thermoelectric modules from excessively high temperatures and ensures at the same time that the excess heat Q E is stored in the phase change material.
  • phase change material layer stores the excess heat Q E at excessively high temperatures and in this way protects the thermoelectric modules from overheating. As soon as the temperature of the hot medium falls again, the phase change material releases the heat back to the thermoelectric modules, and this has a positive effect on the efficiency of the thermoelectric generators built therefrom. At the same time, it is possible to dispense with costly and material-intensive modifications.
  • phase change materials whose latent heat of fusion, heat of dissolution or heat of absorption is much greater than the heat that they can store on the basis of their normal specific heat capacity without the phase change effect.
  • the phase change material which functions as the heat storage medium is "charged" by melting, which absorbs a very large amount of heat.
  • the heat storage medium releases exactly this amount of heat again on phase change from the liquid phase to the solid phase, i.e. on freezing.
  • the advantage of this heat storage technique is based on storage of a maximum amount of heat in a minimum mass within a temperature range fixed exactly by the melting temperature of the storage material used.
  • thermoelectric generators there are high-temperature phase change materials or alloys. These high- temperature phase change materials or alloys can be adjusted such that they melt at a defined temperature T x between 200°C and 1000°C, and freeze again and thus store or release heat.
  • the layer of phase change material is arranged, for example, between a pipe which conducts the hot medium and at least one thermoelectric module, which constitute the basic units of a thermoelectric generator.
  • This thermoelectric generator may be designed as a stand-alone system or as an integrated component.
  • the layer of phase change material can be formed in one piece or as at least one thin layer. It may also have been introduced over the full area or in sections, parallel or at right angles to the length of a pipe, between the thermoelectric modules and the pipe.
  • the layer of phase change material is preferably arranged directly or indirectly between a heat source and a hot side of the thermoelectric modules, such that the hot side of the thermoelectric modules is in turn effectively protected against overheating phenomena which otherwise occur.
  • the layer of phase change material can be integrated in the thermoelectric modules or in the thermoelectric generator, or applied on an inner side of the pipe, or arranged separately as an independent layer between the pipe and the thermoelectric modules.
  • thermoelectric modules can be operated for longer at a higher energy level, thus generating better performance and enhancing efficiency, but at the same time ruling out overheating.
  • thermoelectric materials of the thermoelectric modules comprise skutterudites, semi-Heuslers, clathrates, oxides, silicides, borides, bismuth telluride and derivatives thereof, lead telluride and derivatives thereof, antimonides such as zinc antimonide and Zintl phases.
  • the layer of phase change material may not only be in direct contact with the pipe and the thermoelectric modules, but may also be configured as an encapsulation around the pipe and/or the thermoelectric modules.
  • the material of the encapsulation comprises at least one pure metal, for example nickel, zirconium, titanium, silver or iron, and/or at least one metal alloy based on nickel, chromium, iron, zirconium or titanium.
  • the phase change materials of the layer comprise all inorganic metal salts having a melting point between 250°C and 1700°C.
  • Suitable metal salts comprise, for example, fluorides, chlorides, bromides, iodides, sulfates, nitrates, carbonates, chromates, molybdates, vanadates or tungstates as anions and lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium or barium as cation.
  • These materials may likewise comprise all salt mixtures which form inorganic metal salts with double, triple, quadruple or quintuple eutectics.
  • the phase change material alloy comprises phase change materials as described above, and at least one metal alloy having a melting point between 200°C and 1800°C, based on zinc, magnesium, aluminum, copper, calcium, silicon, phosphorus or antimony.
  • Heat recovery is of particular interest in motor vehicles, since the exhaust gas heat produced therein, according to the model, may be up to 35%. Effective utilization of this heat would result in a considerable improvement in the efficiency of an internal combustion engine.
  • the layer of phase change material may have been installed at at least one position among any of the following: in an exhaust gas line, on or in an exhaust gas manifold, on or in an exhaust gas recycle pipe, on or in an exhaust gas pipe, on or in a middle silencer and/or on or in a rear silencer.
  • thermoelectric generator proposed in accordance with the invention in heat recovery in a power plant, for example integrated on the inside of the flues.
  • other fields of use of the inventive thermoelectric generator are also conceivable, for example in utilization of ambient heat for microelectronic components, geothermal power, domestic and industrial waste heat or as hybrid systems in conjunction with photovoltaic plants.
  • thermoelectric generator comprising phase change material in an offgas pipe or an exhaust gas recycle line of a motor vehicle is illustrated in detail by way of example hereinafter.
  • figure 1 a schematic structure of an offgas system with existing bypass for protection of thermoelectric modules from excessively high temperatures
  • figure 2 the structure of a thermoelectric generator within an exhaust gas pipe or an exhaust gas recycle pipe
  • figure 3 a first embodiment of a phase change material
  • figure 4 a further embodiment of an encapsulation composed of phase change material, into which at least one thermoelectric module has been introduced.
  • thermoelectric module In order to protect the thermoelectric module, the thermoelectric module has to date usually been insulated against excessive heat, or a bypass has been incorporated in the offgas system, and diverts the offgas stream as soon as the temperatures in the offgas become too high.
  • fig. 1 shows the schematic structure of an offgas system with existing bypass for protection of thermoelectric modules from excessively high temperatures.
  • an offgas pipe 10 with permanent temperature measurement hot gases are present at temperature T ac tuai-
  • this gas is passed by means of a second offgas pipe 12 through one or a multitude of thermoelectric generators 14. In the course of this, the gas releases some of its heat and is then fed back at lower temperature to the offgas pipe 10.
  • thermoelectric generator 30 integrated into a pipe 32 which conducts an offgas flow is shown in fig. 2.
  • One cross section 34 of the pipe 32 is preferably round, but all other two-dimensional geometric forms are also conceivable.
  • One length 36 of the pipe 32 is, for example, at least equal to one diameter 38 of the pipe 32.
  • the pipe 32 is an offgas pipe or an offgas recycle pipe in a motor vehicle or a power plant.
  • a multitude of thermoelectric modules 40 may have been attached to an upper side of cooling lines 46.
  • the thermoelectric modules 40 and the cooling lines 46 may be embedded into a heat exchanger or be present separately.
  • thermoelectric materials of the thermoelectric modules 40 comprise skutterudites, semi-Heuslers, clathrates, oxides, silicides, borides, bismuth telluride and derivatives thereof, lead telluride and derivatives thereof, antimonides such as zinc antimonide and Zintl phases.
  • semi-Heusler alloys for example ⁇ ,, ⁇ ,, Sn; HfPdSn, and intermetallic phases, clathrates, Zn 4 Sb 3 , Si 8 Goi 6 Ge 30 ; C 58 Sn 44 , Cu 4 TeSbn; and Zintl phases Ybi 4 MnSb n.
  • thermoelectric modules 40 have a specific maximum use temperature T G . If the temperature of the offgas rises above this temperature, the thermoelectric modules 40 can be damaged and lose their ability to function. If a layer comprising a phase change material has been introduced between an inner side 48 of the pipe 32 and a hot side of a thermoelectric module 40, this layer can protect the thermoelectric modules 40 from excessively high temperatures by storing the excess heat Q E .
  • the phase change material is selected such that the phase change material starts to melt before the maximum use temperature T G of the thermoelectric modules is attained. This firstly enables compensation of excessive temperatures and protection of the thermoelectric modules 40, and the thermoelectric generator is secondly kept at a constant temperature level. This generates better performance and enhances the efficiency of the thermoelectric modules 40.
  • the excess heat Q E stored in the phase change material is released again after the cooling of the thermoelectric generator 30, and can be converted to power by the thermoelectric modules 40. In the methods used to date for offgas heat recovery, this excess heat Q E would be released to the environment without utilization and could not be utilized for power generation.
  • the layer of phase change material may be formed in one piece or as at least one thin layer. It may also have been introduced over the full area or in sections, parallel or at right angles to the length of the pipe 32, between the thermoelectric modules 40 and the pipe 32.
  • the layer of phase change material may have been integrated in the thermoelectric modules 40 or in the thermoelectric generator 30, applied on an inner side of the pipe 32 or introduced separately as an independent layer between the pipe 32 and the thermoelectric modules 40.
  • the layer of phase change material may have been arranged directly or indirectly between a heat source and the hot side of the thermoelectric modules 40.
  • phase change material In the case of direct arrangement of the phase change material it is in direct contact with the hot gas flow, whereas in the case of indirect arrangement of the phase change material the pipe wall of the offgas pipe 10 is between the hot offgas flow and the phase change material.
  • phase change material In the case of direct arrangement of the phase change material it is exposed directly to the hot gas flow, i.e. to the offgas flow 20, whereas in the case of indirect arrangement of the layer of phase change material the pipe wall is between the offgas flow 20, i.e. the hot gas flow, and the phase change material.
  • the layer of phase change material may not only be in direct contact with the pipe 32 and the thermoelectric modules 40, but also be configured as a capsule around the pipe 32 and/or the thermoelectric modules 40.
  • the material of the capsule comprises at least one pure metal, such as nickel, zirconium, titanium, silver or iron, and/or at least one metal alloy, based on nickel, chromium, iron, zirconium or titanium.
  • the layer of phase change material may have been installed in any desired position(s) in an offgas line, on or in an offgas manifold, on or in an offgas recycle pipe, on or in an offgas pipe, on or in a middle silencer and/or on or in a rear silencer.
  • the possible phase change materials of the layer comprise all inorganic metal salts having a melting point between 250°C and 1700°C.
  • Suitable metal salts comprise, for example, fluorides, chlorides, bromides, iodides, sulfates, nitrates, carbonates, chromates, molybdates, vanadates or tungstates as anions and lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium or barium as cation.
  • These materials may likewise comprise all salt mixtures which form inorganic metal salts with double, triple, quadruple or quintuple eutectics.
  • the phase change material alloy comprises at least one metal alloy having a melting point between 200°C and 1800°C, based on zinc, magnesium, aluminum, copper, calcium, silicon, phosphorus or antimony.
  • Figure 3 shows a first embodiment of an arrangement of the phase change material between an offgas pipe which conducts a hot medium and a thermoelectric module.
  • the offgas flow 20 flows in the direction of the arrow within an exhaust gas pipe 10 shown here schematically.
  • the phase change material 60 which may be configured in the form of layers of thin phase change material 60 in a package 62, separates the inner side of the at least one thermoelectric module 40 from the hot side, i.e. in the present case from the outer surface 64 of the offgas pipe 10 conducting the offgas flow 20.
  • the underside of the at least one thermoelectric module 40 may directly adjoin an outer side 70 of the package 62, and this gives rise to a first possible arrangement 72 of the at least one thermoelectric module 40 and of the phase change material 60.
  • the at least one thermoelectric module 40 may also have been embedded partly into the package 62 composed of phase change material 60 and completely or partially surround the ends of the at least one thermoelectric module 40, such that only the outer wall surface of the at least one thermoelectric module 40 remains uncovered, i.e. not surrounded, by the package 62 of phase change material 60.
  • Reference numeral 68 refers to an outer surface of the package 62, which surface is in contact with the inner side of the at least one thermoelectric material 40.
  • the intermediate position of the package 62 between the outer surface 64 of the offgas pipe 10 and the inner side of the at least one thermoelectric module 40 rules out impermissible overheating thereof.
  • the package 62 composed of phase change material 60 serves as a heat store which starts to melt on attainment of a certain temperature and absorbs a large amount of heat owing to its capacity for heat of fusion. Unless the phase change material 60 has completely melted within the package 62, the temperature does not rise; the at least one thermoelectric module 40 can be operated at a higher energy level. On the other hand, it is ensured that the at least one thermoelectric module 40 is protected permanently from temperatures.
  • phase change material 60 can be adapted to any geometric form of the offgas pipe 10; for example it may be round, angular, flat or cylindrical.
  • the phase change material 60 may be in any geometric form within the package 62 according to the diagram in figure 3, for example as a cylinder in layer sequences, annular form and/or the like.
  • the diagram in figure 4 shows a further embodiment of an arrangement of a phase change material for protection of at least one thermoelectric module from excessively high temperatures.
  • the at least one thermoelectric module 40 is externally encapsulated on one side by the phase change material 60 within an encapsulation 62.
  • Reference numeral 76 indicates the encapsulation thickness.
  • the encapsulation thickness 76 is essentially the same on the upper and lower sides of the at least one thermoelectric module 40; however, this is not absolutely necessary, and so the encapsulation thickness 76 selected may also be higher, according to the thermal stress which occurs especially between the underside of the package 62, i.e.
  • thermoelectric module 40 in the immediate proximity of the outer surface 64 and in relation to the underside of the at least one thermoelectric module 40, such that there is sufficient separation and a sufficient volume of phase change material 60 especially at this highly thermally stressed point.
  • the diagram in figure 4 shows that the at least one thermoelectric module 40 is essentially completely surrounded by phase change material 60 within the package 62.
  • the second possible arrangement, shown in figure 4, of the at least one thermoelectric module 40 likewise gives rise to the advantageous effects of the solution proposed in accordance with the invention, as have already been described in connection with the above embodiment of the encapsulation in figure 3.
  • thermoelectric module 40 which is part of a thermoelectric generator 30
  • phase change material 60 due to its high heat storage capacity, keeps the high temperatures which arise through the hot offgas flow 20 of an outer surface 64 of the offgas pipe 10 away from the at least one thermoelectric module 40.
  • This module can firstly be protected from overheating; secondly the operation of the at least one thermoelectric module 40 at a higher energy level is possible in the long term.
  • phase change material 60 of the package 62 it is possible to use, for example, inorganic metal salts having a melting point of between 250°C and 1700°C, such as fluorides, chlorides, bromides, iodides, sulfates, nitrates, carbonates, chromates, molybdates, vanadates and tungstates as salts lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium.
  • inorganic metal salts having a melting point of between 250°C and 1700°C such as fluorides, chlorides, bromides, iodides, sulfates, nitrates, carbonates, chromates, molybdates, vanadates and tungstates as salts lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium.
  • the phase change material 60 is, for example, a salt composition of abovementioned inorganic metal salts which form double and triple eutectics, or the phase change material 60 may be configured, for example, as a salt composition of abovementioned inorganic metal salts which form quadruple or quintuple eutectics.
  • phase change material 60 metal alloys and combinations thereof which form double, triple, quadruple or quintuple eutectics, for example metals such as zinc, magnesium, aluminum, copper, calcium, silicon, phosphorus and antimony.
  • metals such as zinc, magnesium, aluminum, copper, calcium, silicon, phosphorus and antimony.
  • the melting points of this metal alloy are between 200°C and 1800°C.
  • phase change material 60 depends to a high degree on the temperature of the offgas flow 20 which flows within the free cross section of the offgas pipe 10.
  • exhaust gas flows 20 from self-ignition internal combustion engines may have a different temperature level than the exhaust gas flows of spark- ignition internal combustion engines or gas flows which can be utilized as process heat for use of the at least one thermoelectric module 40.
  • PCM Phase change material

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Selon l'invention, dans un générateur thermoélectrique (30), une couche (48) de matériau à changement de phase est introduite entre un tuyau (32) conduisant des gaz de dégagement et au moins un module thermoélectrique (40). Cette couche de matériau à changement de phase stocke la chaleur excédentaire QE à des température de gaz de dégagement excessivement élevées, ce qui protège les modules thermoélectriques (40) et maintient en même temps le générateur thermoélectrique (30) à un niveau de température constant, améliorant ainsi son efficacité.
PCT/IB2011/054166 2010-09-23 2011-09-22 Protection thermique de module thermoélectrique et/ou de générateur thermoélectrique au moyen de matériaux à changement de phase WO2012038917A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10178728.1 2010-09-23
EP10178728 2010-09-23

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WO2012038917A1 true WO2012038917A1 (fr) 2012-03-29

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102769414A (zh) * 2012-08-10 2012-11-07 江西纳米克热电电子股份有限公司 一种圆形汽车尾气半导体热电发电机
DE102012202150A1 (de) * 2012-02-13 2013-08-14 Behr Gmbh & Co. Kg Vorrichtung zum thermoelektrischen Erzeugen von Energie für ein Fahrzeug
WO2014084897A2 (fr) * 2012-04-10 2014-06-05 Sheetak, Inc. Générateur d'énergie thermique polycarburant pour charges électriques
US8904808B2 (en) 2009-07-17 2014-12-09 Sheetak, Inc. Heat pipes and thermoelectric cooling devices
US9435571B2 (en) 2008-03-05 2016-09-06 Sheetak Inc. Method and apparatus for switched thermoelectric cooling of fluids
US9728701B2 (en) 2015-02-02 2017-08-08 Hyundai Motor Company Thermoelectric generation apparatus
CN109989811A (zh) * 2019-05-14 2019-07-09 河北工业大学 一种中间介质型内燃机尾气温差发电装置
EP3611769A1 (fr) 2018-08-08 2020-02-19 Universidade do Minho Système de récupération de chaleur

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US6624349B1 (en) * 2000-11-08 2003-09-23 Hi-Z Technology, Inc. Heat of fusion phase change generator
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CN101645679A (zh) * 2009-08-13 2010-02-10 哈尔滨工程大学 以柴油机余热为热源的碱金属热电直接转换器发电装置
CN101789729A (zh) * 2010-03-03 2010-07-28 浙江大学宁波理工学院 一种发动机余热发电装置及其发电模块
CN101793185A (zh) * 2010-03-03 2010-08-04 浙江大学 一种发动机余热发电系统及其发电驱动模块

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US6624349B1 (en) * 2000-11-08 2003-09-23 Hi-Z Technology, Inc. Heat of fusion phase change generator
DE102006040853B3 (de) * 2006-08-31 2008-02-14 Siemens Ag Einrichtung der Thermoelektrik mit einem thermoelektrischen Generator und Mitteln zur Temperaturbegrenzung an dem Generator
CN101645679A (zh) * 2009-08-13 2010-02-10 哈尔滨工程大学 以柴油机余热为热源的碱金属热电直接转换器发电装置
CN101789729A (zh) * 2010-03-03 2010-07-28 浙江大学宁波理工学院 一种发动机余热发电装置及其发电模块
CN101793185A (zh) * 2010-03-03 2010-08-04 浙江大学 一种发动机余热发电系统及其发电驱动模块

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9435571B2 (en) 2008-03-05 2016-09-06 Sheetak Inc. Method and apparatus for switched thermoelectric cooling of fluids
US8904808B2 (en) 2009-07-17 2014-12-09 Sheetak, Inc. Heat pipes and thermoelectric cooling devices
DE102012202150A1 (de) * 2012-02-13 2013-08-14 Behr Gmbh & Co. Kg Vorrichtung zum thermoelektrischen Erzeugen von Energie für ein Fahrzeug
WO2014084897A2 (fr) * 2012-04-10 2014-06-05 Sheetak, Inc. Générateur d'énergie thermique polycarburant pour charges électriques
WO2014084897A3 (fr) * 2012-04-10 2014-09-25 Sheetak, Inc. Générateur d'énergie thermique polycarburant pour charges électriques
CN102769414A (zh) * 2012-08-10 2012-11-07 江西纳米克热电电子股份有限公司 一种圆形汽车尾气半导体热电发电机
US9728701B2 (en) 2015-02-02 2017-08-08 Hyundai Motor Company Thermoelectric generation apparatus
EP3611769A1 (fr) 2018-08-08 2020-02-19 Universidade do Minho Système de récupération de chaleur
CN109989811A (zh) * 2019-05-14 2019-07-09 河北工业大学 一种中间介质型内燃机尾气温差发电装置

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