Thermoelectric power generator for variable thermal power source
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-035/30
F01P-009/06
F01P-011/20
출원번호
US-0476325
(2006-06-28)
등록번호
US-9006556
(2015-04-14)
발명자
/ 주소
Bell, Lon E.
Crane, Douglas Todd
출원인 / 주소
Genthem Incorporated
대리인 / 주소
Knobbe Martens Olson & Bear, LLP
인용정보
피인용 횟수 :
3인용 특허 :
129
초록▼
Traditional power generation systems using thermoelectric power generators are designed to operate most efficiently for a single operating condition. The present invention provides a power generation system in which the characteristics of the thermoelectrics, the flow of the thermal power, and the o
Traditional power generation systems using thermoelectric power generators are designed to operate most efficiently for a single operating condition. The present invention provides a power generation system in which the characteristics of the thermoelectrics, the flow of the thermal power, and the operational characteristics of the power generator are monitored and controlled such that higher operation efficiencies and/or higher output powers can be maintained with variably thermal power input. Such a system is particularly beneficial in variable thermal power source systems, such as recovering power from the waste heat generated in the exhaust of combustion engines.
대표청구항▼
1. A thermoelectric power generation system comprising: a thermoelectric generator having an input adapted to receive a varying thermal power from a thermal power source, and further having an output adapted to move waste heat from the thermoelectric generator, the thermal power source comprising an
1. A thermoelectric power generation system comprising: a thermoelectric generator having an input adapted to receive a varying thermal power from a thermal power source, and further having an output adapted to move waste heat from the thermoelectric generator, the thermal power source comprising an engine;a thermal power delivery system adapted to selectively deliver the waste heat from the thermoelectric generator to at least two locations; anda controller in communication with the delivery system, the controller programmed to respond to information regarding at least one parameter selected from the group consisting of fuel mass flow rate and air mass flow rate by selecting at least one of the at least two locations for delivery of the waste heat by the delivery system such that the thermoelectric generator operates substantially efficiently as the thermal power received by the thermoelectric generator varies. 2. The thermoelectric power generation system of claim 1, wherein one of the at least two locations is a radiator of the engine. 3. The thermoelectric power generation system of claim 1, wherein the engine comprises a combustion engine in a vehicle adapted to carry occupants, and wherein one of the at least two locations is the occupant compartment. 4. The thermoelectric power generation system of claim 1, wherein the controller is adapted to control the removal of waste heat from a cold side of the thermoelectric generator. 5. The thermoelectric power generation system of claim 1, wherein the thermoelectric generator has at least two thermoelectrics, and wherein the controller selectively directs thermal power from the thermal power source to only one of the two thermoelectrics during certain conditions and selectively directs thermal power from the thermal power source to both of the at least two thermoelectrics during other conditions of varying thermal power. 6. The thermoelectric power generation system of claim 1, wherein the thermoelectric generator has at least three thermoelectrics, and wherein the controller selectively directs thermal power from the thermal power source to any one of the thermoelectrics. 7. The thermoelectric power generation system of claim 1, wherein the thermoelectric generator comprises at least two thermoelectrics. 8. The thermoelectric power generation system of claim 7, wherein the delivery system is controllable to selectively deliver thermal power from the thermal power source either to a first number of thermoelectrics of the at least two thermoelectrics or to a second number of thermoelectrics of the at least two thermoelectrics, the first number less than the second number. 9. The thermoelectric power generation system of claim 7, wherein the delivery system is controllable to selectively deliver thermal power from the thermal power source either to one thermoelectric of the at least two thermoelectrics or to two thermoelectrics of the at least two thermoelectrics. 10. The thermoelectric power generation system of claim 7, wherein the delivery system is controllable to selectively deliver thermal power from the thermal power source either to a first thermoelectric of the at least two thermoelectrics, a second thermoelectric of the at least two thermoelectrics, or to both the first thermoelectric and the second thermoelectric. 11. The thermoelectric power generation system of claim 7, wherein the controller is in communication with the delivery system to control the cooling conditions provided by the delivery system. 12. The thermoelectric power generation system of claim 11, further comprising a cold-side working fluid in thermal communication with the delivery system, wherein the controller is in communication with the delivery system to control the cold-side working fluid flow rate to control the operating properties of the at least two thermoelectrics. 13. The thermoelectric power generation system of claim 1, wherein the delivery system uses a hot-side working fluid, and wherein the flow rate of the hot-side working fluid is controllable via the controller. 14. The thermoelectric power generation system of claim 1, wherein the at least one parameter comprises fuel mass flow rate. 15. The thermoelectric power generation system of claim 1, wherein the at least one parameter comprises air mass flow rate. 16. The thermoelectric power generation system of claim 1, wherein the controller is further programmed to utilize information regarding a pressure of a cold-side working fluid of the thermoelectric generator to select the at least one of the at least two locations for delivery of the waste heat. 17. A thermoelectric power generation system comprising: a thermoelectric generator having an input adapted to receive a varying thermal power from a thermal power source, and further having an output adapted to move waste heat from the thermoelectric generator to a cold-side working fluid;a thermal power delivery system adapted to selectively deliver thermal power to at least two locations; anda controller in communication with the delivery system, the controller programmed to utilize information regarding a pressure of the cold-side working fluid to select at least one of the at least two locations for delivery of the thermal power by the delivery system such that the thermoelectric generator operates substantially efficiently as the thermal power received by the thermoelectric generator varies. 18. The thermoelectric power generation system of claim 17, wherein the thermal power source comprises an engine, the thermal power selectively directed by the delivery system comprises the waste heat from the thermoelectric generator, and wherein one of the at least two locations is a radiator of the engine. 19. The thermoelectric power generation system of claim 17, wherein the thermal power source comprises an engine, the thermal power selectively directed by the delivery system comprises the waste heat from the thermoelectric generator, and wherein one of the at least two locations is the engine. 20. The thermoelectric power generation system of claim 17, wherein the thermal power source comprises an engine of a vehicle, the thermal power selectively directed by the delivery system comprises the waste heat from the thermoelectric generator, and wherein one of the at least two locations is an occupant compartment of the vehicle.
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