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WO2008009375A2 - Method for producing electrical energy and arrangement for carrying out said method - Google Patents

Method for producing electrical energy and arrangement for carrying out said method Download PDF

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Publication number
WO2008009375A2
WO2008009375A2 PCT/EP2007/006117 EP2007006117W WO2008009375A2 WO 2008009375 A2 WO2008009375 A2 WO 2008009375A2 EP 2007006117 W EP2007006117 W EP 2007006117W WO 2008009375 A2 WO2008009375 A2 WO 2008009375A2
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WO
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Prior art keywords
profile
collector
heat
transfer medium
heat transfer
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Ceased
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PCT/EP2007/006117
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German (de)
French (fr)
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WO2008009375A3 (en
WO2008009375B1 (en
Inventor
Uwe Vincenz
Marcel Vincenz
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Publication of WO2008009375B1 publication Critical patent/WO2008009375B1/en
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    • 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

Definitions

  • the invention relates to a method for generating electric energy from radiant energy, in particular solar radiation and an arrangement for carrying out the method according to the invention.
  • the disadvantage here is the still low efficiencies of the photovoltaic elements and the associated low energy yield.
  • the object of the invention is to propose a method and an arrangement for generating electrical energy, which eliminates the disadvantages of the known prior art and provides electric energy available by using solar radiation.
  • the inventive solution according to Figure 1 has a solar collector 1, by means of which a heat transfer medium is heated.
  • a heat transfer medium is selected, which is suitable for high temperatures.
  • the heated heat transfer medium is supplied by laminar or turbulent flow a profile 3 and heats this.
  • a known thermoelectric generator 2 is connected, which is connected on its side facing away from the profile 3 with a cooling element.
  • thermoelectric generator 2 Due to the temperature difference thus generated creates a voltage at the terminals of the thermoelectric generator 2.
  • the heat transfer medium is after flowing through the profile 3 and thereby reduced heat energy capacity back to the collector Heating supplied. This cycle of the heat transfer medium is realized by means of known pump technology.
  • thermoelectric generator 2 An increase in the temperature difference improves the energy yield from the thermoelectric generator 2 and can be realized by the following further embodiments of the inventive solutions.
  • Figure 2 shows an embodiment of the solution according to the invention, in which the heating of one side of the thermoelectric generator 2 through the circuit of the heated heat transfer medium as shown in Figure 1, the cooled side of the thermoelectric generator 2 is connected to a profile 4, which is flowed through by a cooled in a cooler 7 coolant, which is permanently cooled in a cooling circuit.
  • Figure 3 shows an embodiment of the solution according to the invention, in which the heat transfer medium is temporarily stored in a memory 5 and is supplied from this from the profile 3.
  • this inventive embodiment of the solution buffering of the stored heat energy is possible, which allows, for example, in the night hours continuous energy.
  • FIG. 4 A further variant of the solution according to the invention is shown in FIG. 4.
  • Figure 5 shows a variant, after which the heat transfer medium is returned after passing through the profile 3 to the collector.
  • thermoelectric generator is mounted as in all other variants described between the profiles 3 (warm) and (4).
  • the heat and the cooling circuit are flowed through laminar or turbulent.
  • the collector 1 In night mode, the collector 1 is turned off and the heat transformer 6 is operated via the memory 5.
  • Figure 7 shows a variant according to which the heat transfer medium is heated by means of collector 1 and heat transformer 6 and is passed to the memory 5 and from this to the collector 1 after flowing through the profile 3.
  • the collector 1 In night mode, the collector 1 is turned off and the heat transformer 6 is operated via the memory 5.

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  • Photovoltaic Devices (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a method for producing electrical energy from radiation energy, in particular solar radiation, and to an arrangement for carrying out the inventive method. A heat transfer medium is heated by means of a solar collector (1) and after heating is conducted to a thermoelectric generator (2), one side of said generator being brought upto the temperature of the heated heat transfer medium, and the other side being cooled to a lower temperature thus producing a temperature difference that is sufficient to generate a voltage and the medium is transported by a laminar or turbulent through-flow.

Description

Verfahren zur Erzeugung von Elektroenergie und Anordnung zur Durchführung des Verfahrens Method for generating electrical energy and arrangement for carrying out the method

Die Erfindung betrifft ein Verfahren zur Erzeugung von Elektroenergie aus Strahlungsenergie, insbesondere Sonnenstrahlung und eine Anordnung zur Durchführung des erfindungsgemäßen Verfahrens.The invention relates to a method for generating electric energy from radiant energy, in particular solar radiation and an arrangement for carrying out the method according to the invention.

Es ist bekannt, aus Strahlungsenergie, insbesondere Sonnenstrahlung, Energie zu gewinnen.It is known to extract energy from radiant energy, in particular solar radiation.

Zur Gewinnung von Elektroenergie ist es bekannt, photovoltaische Elemente einzusetzen.For the production of electrical energy, it is known to use photovoltaic elements.

Hierzu wurden in den letzten Jahren umfangreiche Forschungen und Entwicklungen durchgeführt. Nunmehr findet diese Art der Gewinnung von Elektroenergie breite Anwendung und wird staatlich in großem Umfang gefördert.Extensive research and development has been carried out in recent years. Now, this type of production of electric power is widely used and is widely promoted by the state.

Nachteilig hierbei sind die noch geringen Wirkungsgrade der photovoltaischen Elemente und die damit verbundene geringe Energieausbeute.The disadvantage here is the still low efficiencies of the photovoltaic elements and the associated low energy yield.

Auch bekannt ist die Nutzung der Sonnenstrahlung mittels Strahlungskollektoren und insbesondere Sonnenkollektoren, welche dazu dienen, Strahlungsenergie in Wärme umzuwandeln. Hierzu werden Absorber genutzt, mit denen die Strahlungsenergie aufgefangen und in Wärmeenergie umgesetzt wird. Die in dem Absorber entstandene Wärmeenergie wird dann auf ein Wärmeträgermedium übertragen, das in einem Wärmeträgerleiter umläuft, wobei der Wärmeträgerleiter mit dem Absorber in der Regel in thermisch leitender Verbindung steht. Das Wärmeträgermedium wird derzeit beispielsweise zur Heizung von Räumen, Schwimmbädern oder dergleichen genutzt werden.Also known is the use of solar radiation by means of radiation collectors and in particular solar panels, which serve to convert radiant energy into heat. For this purpose, absorbers are used with which the radiation energy is collected and converted into heat energy. The heat energy produced in the absorber is then transferred to a heat transfer medium, which circulates in a heat carrier conductor, wherein the heat carrier conductor with the absorber is usually in thermally conductive connection. The heat transfer medium is currently, for example be used for heating rooms, swimming pools or the like.

Aufgabe der Erfindung ist es, ein Verfahren und eine Anordnung zur Erzeugung von Elektroenergie vorzuschlagen, welche die Nachteile des bekannten Standes der Technik beseitigt und unter Nutzung von Sonnenstrahlung Elektroenergie zur Verfügung stellt.The object of the invention is to propose a method and an arrangement for generating electrical energy, which eliminates the disadvantages of the known prior art and provides electric energy available by using solar radiation.

Die Lösung der erfindungsgemäßen Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Anspruches 1 in Zusammenhang mit den Merkmalen des Oberbegriffes. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The solution of the object according to the invention results from the characterizing features of claim 1 in connection with the features of the preamble. Further advantageous embodiments of the invention will become apparent from the dependent claims.

Nachfolgend soll die Erfindung anhand der Abbildungen 1 bis 7 näher erläutert werden.The invention will be explained in more detail with reference to Figures 1 to 7.

Die erfindungsgemäße Lösung gemäß Abbildung 1 weist einen Sonnenkollektor 1 auf, mittels welchem ein Wärmeträgermedium erwärmt wird. Dazu wird vorzugsweise ein Wärmeträgermedium ausgewählt, welches für hohe Temperaturen geeignet ist. Das erwärmte Wärmeträgermedium wird durch laminare beziehungsweise turbulente Strömung einem Profil 3 zugeführt und erwärmt dieses. Mit dem Profil 3 ist ein bekannter thermoelektrischer Generator 2 verbunden, welcher an seiner dem Profil 3 abgewandten Seite mit einem Kühlelement verbunden ist.The inventive solution according to Figure 1 has a solar collector 1, by means of which a heat transfer medium is heated. For this purpose, preferably a heat transfer medium is selected, which is suitable for high temperatures. The heated heat transfer medium is supplied by laminar or turbulent flow a profile 3 and heats this. With the profile 3, a known thermoelectric generator 2 is connected, which is connected on its side facing away from the profile 3 with a cooling element.

Durch die so erzeugte Temperaturdifferenz entsteht eine Spannung an den Anschlüssen des thermoelektrischen Generators 2. Das Wärmeträgermedium wird nach Durchfließen des Profils 3 und dabei verminderter Wärmenergiekapazität wieder dem Kollektor zur Erwärmung zugeführt. Dieser Kreislauf des Wärmeträgermediums wird mittels bekannter Pumptechnik realisiert.Due to the temperature difference thus generated creates a voltage at the terminals of the thermoelectric generator 2. The heat transfer medium is after flowing through the profile 3 and thereby reduced heat energy capacity back to the collector Heating supplied. This cycle of the heat transfer medium is realized by means of known pump technology.

Eine Vergrößerung der Temperaturdifferenz verbessert die Energieausbeute aus dem thermoelektrischen Generator 2 und ist durch die nachfolgenden weiteren Ausgestaltungen der erfindungsgemäßen Lösungen zu realisieren.An increase in the temperature difference improves the energy yield from the thermoelectric generator 2 and can be realized by the following further embodiments of the inventive solutions.

So zeigt Abbildung 2 eine Ausführung der erfindungsgemäßen Lösung, bei welcher die Erwärmung der einen Seite des thermoelektrischen Generators 2 durch den Kreislauf des erwärmten Wärmeträgermedium wie in Abbildung 1 ausgeführt ist, die gekühlte Seite des thermoelektrischen Generators 2 jedoch mit einem Profil 4 verbunden ist, welches von einem in einem Kühler 7 gekühlten Kühlmittel durchströmt wird, welches in einem Kühlkreislauf permanent gekühlt wird.Thus, Figure 2 shows an embodiment of the solution according to the invention, in which the heating of one side of the thermoelectric generator 2 through the circuit of the heated heat transfer medium as shown in Figure 1, the cooled side of the thermoelectric generator 2 is connected to a profile 4, which is flowed through by a cooled in a cooler 7 coolant, which is permanently cooled in a cooling circuit.

Abbildung 3 zeigt eine Ausgestaltung der erfindungsgemäßen Lösung, bei welcher das Wärmeträgermedium in einem Speicher 5 zwischengespeichert wird und von diesem aus dem Profil 3 zugeführt wird. Mit dieser erfindungsgemäßem Ausgestaltung der Lösung ist eine Pufferung der gespeicherten Wärmeenergie möglich, welche beispielsweise in Nachtstunden eine kontinuierliche Energiegewinnung ermöglicht.Figure 3 shows an embodiment of the solution according to the invention, in which the heat transfer medium is temporarily stored in a memory 5 and is supplied from this from the profile 3. With this inventive embodiment of the solution buffering of the stored heat energy is possible, which allows, for example, in the night hours continuous energy.

Eine weitere Varainte der erfindungsgemäßen Lösung zeigt Abbildung 4. Hinter dem Speicher 5 ist ein Wärmetransformator 6 angeordnet, in welchem das Wärmeträgermedium durch Desorption weiter erwärmt und dem Profil 3 zugeführt und von dort zum Wärmetransformator 6 zurück geleitet wird. Die kalte Seite des Systems wird durch den Wärmetransformator 6 gekühlt und dem Kältekreislauf zugeführt. Abbildung 5 zeigt eine Variante, nach welcher das Wärmeträgermedium nach Durchlaufen des Profils 3 zum Kollektor zurückgeleitet wird.A further variant of the solution according to the invention is shown in FIG. 4. A heat transformer 6, in which the heat transfer medium is further heated by desorption and fed to the profile 3, and from there to the heat transformer 6, is arranged behind the reservoir 5. The cold side of the system is cooled by the heat transformer 6 and fed to the refrigeration cycle. Figure 5 shows a variant, after which the heat transfer medium is returned after passing through the profile 3 to the collector.

In Abbildung 6 wird eine Variante abgebildet, nach welcher das Wärmeträgermedium über den Kollektor 1 und durch den Wärmetransformator 6 erwärmt wird, dem Profil 3 zugeführt und über den Speicher 5 zum Kollektor 1 zurück geleitet wird. Die kalte Seite des Systems wird durch den Wärmetransformator gekühlt und dem Kältekreislauf zugeführt.In Figure 6, a variant is shown, according to which the heat transfer medium is heated by the collector 1 and by the heat transformer 6, the profile 3 is supplied and passed through the memory 5 to the collector 1 back. The cold side of the system is cooled by the heat transformer and fed to the refrigeration cycle.

Der thermoelektrische Generator ist wie bei allen anderen beschriebenen Varianten zwischen den Profilen 3 (warm) und (4) gelagert.The thermoelectric generator is mounted as in all other variants described between the profiles 3 (warm) and (4).

Der Wärme- als auch der Kältekreislauf werden laminar oder turbulent durchströmt.The heat and the cooling circuit are flowed through laminar or turbulent.

Bei Nachtbetrieb wird der Kollektor 1 abgeschaltet und der Wärmetransformator 6 wird über den Speicher 5 betrieben.In night mode, the collector 1 is turned off and the heat transformer 6 is operated via the memory 5.

Abbildung 7 zeigt eine Variante, nach der das Wärmeträgermedium mittels Kollektor 1 und Wärmetransformator 6 erwärmt wird und nach Durchströmen des Profils 3 zum Speicher 5 und von diesem zum Kollektor 1 geleitet wird.Figure 7 shows a variant according to which the heat transfer medium is heated by means of collector 1 and heat transformer 6 and is passed to the memory 5 and from this to the collector 1 after flowing through the profile 3.

Bei Nachtbetrieb wird der Kollektor 1 abgeschaltet und der Wärmetransformator 6 wird über den Speicher 5 betrieben. In night mode, the collector 1 is turned off and the heat transformer 6 is operated via the memory 5.

Claims

Patentansprüche: claims: Anspruch 1: Verfahren zur Erzeugung von Elektroenergie, dadurch gekennzeichnet, dass mittels eines Sonnenkollektors (1) ein Wärmeträgermedium erwärmt und nach der Erwärmung einem thermoelektrischen Generator (2) zugeleitet wird, welcher auf seiner einen Seite mit der Temperatur des erwärmten Wärmeträgermedium beaufschlagt wird und an seiner anderen Seite mit einer niedrigeren Temperatur beaufschlagt wird, so dass eine zur Erzeugung einer Spannung ausreichende Temperaturdifferenz erzeugt wird und das Medium durch laminare beziehungsweise turbulente Durchströmung transportiert wird.Claim 1: A method for generating electrical energy, characterized in that by means of a solar collector (1), a heat transfer medium is heated and fed after heating a thermoelectric generator (2), which is acted upon on its one side with the temperature of the heated heat transfer medium and at its lower side is acted upon by a lower temperature, so that a sufficient temperature difference for generating a voltage is generated and the medium is transported by laminar or turbulent flow. Anspruch 2:Claim 2: Anordnung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass ein Kollektor (1) mit einem Profil (3) zur Aufnahme eines thermoelektrischen Generators (2) mittels einer Rohrleitung verbunden ist und das Profil einen Rücklauf zum Kollektor aufweist und das der thermoelektrischer Generator (2) an seiner dem Profil (3) abgewandten Seite mit einem Kühlelement verbunden ist.Arrangement for carrying out the method according to claim 1, characterized in that a collector (1) having a profile (3) for receiving a thermoelectric generator (2) is connected by means of a pipeline and the profile has a return to the collector and the thermoelectric generator (2) is connected at its side facing away from the profile (3) with a cooling element. Anspruch 3:Claim 3: Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass die gekühlte Seite des thermoelektrischen Generators (2) mit einem Profil (4) verbunden ist, welches von einem Kühlmittel durchströmt wird, welches in einem Kühlkreislauf permanent gekühlt wird. Anspruch 4:Arrangement according to claim 2, characterized in that the cooled side of the thermoelectric generator (2) with a profile (4) is connected, which is flowed through by a coolant, which is permanently cooled in a cooling circuit. Claim 4: Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass zwischen dem Kollektor (1) und dem Profil (3) ein Speicher (5) angeordnet ist und von diesem das Wärmeträgermedium dem Profil (3) zuzuführen ist.Arrangement according to claim 2, characterized in that between the collector (1) and the profile (3) a memory (5) is arranged and from this the heat transfer medium to the profile (3) is to be supplied. Anspruch 5:Claim 5: Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass nach dem Speicher (5) ein Wärmetransformator (6) angeordnet ist, in welchem das Wärmeträgermedium durch Desorption weiter erwärmt und dem Profil (3) zuzuführen ist und dass das Profil (3) einen Rückfluss zum Wärmetransformator (6) aufweist und dass der Wärmetransformator mit seiner kalten Seite mit dem Profil (4) verbunden und mit einem Rücklauf versehen ist.Arrangement according to claim 2, characterized in that after the memory (5) a heat transformer (6) is arranged, in which the heat transfer medium further heated by desorption and the profile (3) is to be supplied and that the profile (3) has a reflux to the heat transformer (6) and that the heat transformer is connected with its cold side with the profile (4) and provided with a return. Anspruch 6:Claim 6: Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass der Kollektor (1) mit einem Wärmetransformator (6) und dieser mit seiner warmen Seite mit dem Profil (3) verbunden ist und einen Rücklauf für das Wärmeträgermedium zum Kollektor (1) aufweist und die kalte Seite des Wärmetransformator (6) mit einem Profil (4) in einem Kühlkreislauf mit der kalten Seite des Wärmetransformators (6) verbunden ist.Arrangement according to claim 2, characterized in that the collector (1) with a heat transformer (6) and this with its warm side with the profile (3) is connected and has a return for the heat transfer medium to the collector (1) and the cold side of the heat transformer (6) is connected to a profile (4) in a cooling circuit with the cold side of the heat transformer (6). Anspruch 7:Claim 7: Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass der Kollektor (1) umschaltbar mit dem Speicher (5) und demArrangement according to claim 2, characterized in that the collector (1) switchable with the memory (5) and the Wärmetransformator (6) verbunden ist und der Wärmetransformator (6) über einen Kühlkreislauf mit dem Profil (4) verbunden ist und der Rücklauf vom Profil (3) mit dem Speicher (5) verbunden ist, wobei der Kollektor (1) abzuschalten ist und der Wärmetransformator (6) über den Speicher (5) zu betreiben ist. Heat transformer (6) is connected and the heat transformer (6) via a cooling circuit with the profile (4) is connected and the return from the profile (3) to the memory (5), wherein the collector (1) is to be switched off and the Heat transformer (6) via the memory (5) is to operate.
PCT/EP2007/006117 2006-07-19 2007-07-10 Method for producing electrical energy and arrangement for carrying out said method Ceased WO2008009375A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033816A DE102006033816A1 (en) 2006-07-19 2006-07-19 Method for generating electrical energy and arrangement for carrying out the method
DE102006033816.2 2006-07-19

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WO2008009375A2 true WO2008009375A2 (en) 2008-01-24
WO2008009375A3 WO2008009375A3 (en) 2008-09-25
WO2008009375B1 WO2008009375B1 (en) 2008-12-18

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008148435A3 (en) * 2007-06-07 2009-02-26 Manuela Vincenz Method for generating electric and thermal power, and system for carrying out said method
CN102287923A (en) * 2011-06-24 2011-12-21 中国科学院广州能源研究所 Solar heat-electricity-gas three-supply system and method
WO2011024138A3 (en) * 2009-08-26 2012-03-29 Chia Chao Wu Solar water heating and thermal power generation apparatus
CN103663750A (en) * 2012-09-03 2014-03-26 凌春林 Solar water purification thermoelectric device
CN104832387A (en) * 2015-03-25 2015-08-12 上海领势新能源科技有限公司 Liquid-nitrogen assisted energy storage tower type solar power plant
CN107612422A (en) * 2017-08-18 2018-01-19 江苏大学 A kind of hot temperature difference electricity generation device of solar energy liquid

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DE102008009979A1 (en) * 2008-02-19 2009-09-10 Pérez, José Luis, Dipl.-Ing. Thermoelectric solar generator for generating electrical energy, has warm and cold store, where thermoelectric solar generator produces electric voltage in Peltier modules on basis of physical Seebeck effect
DE102015013359A1 (en) 2015-10-17 2017-04-20 Rainer Pommersheim Ionic fluid thermal solar module and collector and ionic liquid combined photovoltaic / photovoltaic module and collector

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008148435A3 (en) * 2007-06-07 2009-02-26 Manuela Vincenz Method for generating electric and thermal power, and system for carrying out said method
WO2011024138A3 (en) * 2009-08-26 2012-03-29 Chia Chao Wu Solar water heating and thermal power generation apparatus
CN102287923A (en) * 2011-06-24 2011-12-21 中国科学院广州能源研究所 Solar heat-electricity-gas three-supply system and method
CN103663750A (en) * 2012-09-03 2014-03-26 凌春林 Solar water purification thermoelectric device
CN104832387A (en) * 2015-03-25 2015-08-12 上海领势新能源科技有限公司 Liquid-nitrogen assisted energy storage tower type solar power plant
CN107612422A (en) * 2017-08-18 2018-01-19 江苏大学 A kind of hot temperature difference electricity generation device of solar energy liquid

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DE102006033816A1 (en) 2008-02-07
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