[미국특허]
Load matched power generation system including a solid oxide fuel cell and a heat pump and an optional turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-008/04
H01M-008/12
출원번호
US-0300021
(2002-11-20)
발명자
/ 주소
Gottmann,Matthias
McElroy,James F.
출원인 / 주소
ION America Corporation
대리인 / 주소
Foley &
인용정보
피인용 횟수 :
52인용 특허 :
27
초록▼
Solid oxide fuel cell power generation systems which are capable of producing high-quality heat are used to drive refrigeration systems. The amount of electrical energy produced and the cooling capacity obtainable are well matched to electronic data center power and cooling needs. The power generati
Solid oxide fuel cell power generation systems which are capable of producing high-quality heat are used to drive refrigeration systems. The amount of electrical energy produced and the cooling capacity obtainable are well matched to electronic data center power and cooling needs. The power generation system includes a solid oxide fuel cell stack, a heat pump and an optional turbine.
대표청구항▼
What is claimed is: 1. A power generation system, comprising: a solid oxide fuel cell stack; and a heat pump; wherein: the solid oxide fuel cell stack is adapted to provide electrical power for a data center and to provide high temperature heat to the heat pump; the heat pump is adapted to receive
What is claimed is: 1. A power generation system, comprising: a solid oxide fuel cell stack; and a heat pump; wherein: the solid oxide fuel cell stack is adapted to provide electrical power for a data center and to provide high temperature heat to the heat pump; the heat pump is adapted to receive the high temperature heat from the solid oxide fuel cell stack to cool the data center; and an electrical power load provided by the solid oxide fuel cell stack and a cooling load on the heat pump are matched to requirements of the data center. 2. The system of claim 1, further comprising a heat sink for the heat driven heat pump. 3. The system of claim 2, wherein no additional cooling devices nor significant additional electrical power is required to power and cool the data center. 4. The system of claim 2, wherein the heat pump comprises an absorption heat driven heat pump or adsorption heat driven heat pump. 5. The system of claim 4, wherein the heat pump comprises an absorption heat driven heat pump. 6. The system of claim 4, further comprising: a fuel inlet; an oxidizer inlet; a fuel preheater between the fuel inlet and the fuel cell stack; an oxidizer preheater between the oxidizer inlet and the fuel cell stack; a fuel outlet cooler; an oxidizer outlet cooler; and a burner receiving fuel and oxidizer. 7. The system of claim 6, further comprising a burner exhaust heat exchanger. 8. The system of claim 7, wherein the burner receives fuel and oxidizer from the fuel and oxidizer outlet coolers. 9. The system of claim 8, wherein: the fuel preheater and the fuel outlet cooler comprise a single heat exchanger; the oxidizer preheater and the oxidizer outlet cooler comprise a single heat exchanger; and the burner exhaust heat exchanger comprises a portion of a heat exchanger located in the heat driven heat pump. 10. The system of claim 8, wherein: the fuel preheater and the fuel outlet cooler comprise a single heat exchanger; the oxidizer preheater and the burner exhaust heat exchanger comprise a single heat exchanger; and the oxidizer outlet cooler comprises a portion of a heat exchanger located in the heat driven heat pump. 11. The system of claim 8, wherein: the fuel preheater and the oxidizer outlet cooler comprise a single heat exchanger; the oxidizer preheater and the fuel outlet cooler comprise a single heat exchanger; and the burner exhaust heat exchanger comprises a portion of a heat exchanger located in the heat driven heat pump. 12. The system of claim 8, further comprising: a fuel preconditioner between the fuel inlet and the fuel cell stack; and an oxidizer preconditioner between the oxidizer inlet and the fuel cell stack. 13. The system of claim 6, further comprising a turbine. 14. The system of claim 13, further comprising: a fuel compressor; a first oxidizer compressor; a turbine exhaust heat exchanger; and a generator. 15. The system of claim 14, wherein: the fuel preheater and the fuel outlet cooler comprise a single heat exchanger; and the oxidizer preheater and the oxidizer outlet cooler comprise a single heat exchanger; and the turbine exhaust heat exchanger comprises a portion of a heat exchanger located in the heat driven heat pump. 16. The system of claim 14, further comprising a blower or a second compressor which provides the oxidizer into the oxidizer preheater. 17. The system of claim 16, wherein: the first oxidizer compressor provides oxidizer into the burner; and the burner output drives the turbine. 18. The system of claim 14, wherein: the fuel preheater and the fuel outlet cooler comprise a single heat exchanger; the oxidizer preheater and the turbine exhaust heat exchanger comprise a single heat exchanger; and the oxidizer outlet cooler comprises a portion of a heat exchanger located in the heat driven heat pump. 19. The system of claim 14, wherein: the fuel preheater and the turbine exhaust heat exchanger comprise a single heat exchanger; the oxidizer preheater and the oxidizer outlet cooler comprise a single heat exchanger; and the fuel outlet cooler comprises a portion of a heat exchanger located in the heat driven heat pump. 20. The system of claim 14, wherein a conduit connects an output of the heat driven heat pump and an input of the burner. 21. The system of claim 14, wherein a conduit connects an output of the burner to an input of the turbine. 22. The system of claim 14, further comprising a mechanical coupling which transmits mechanical energy from the turbine to the fuel compressor, the first oxidizer compressor and the generator. 23. A power generation system comprising: a solid oxide fuel cell stack: a heat pump; a turbine; a heat sink; a fuel inlet; an oxidizer inlet; a fuel compressor; a first oxidizer compressor; a fuel preheater between the fuel inlet and the fuel cell stack; an oxidizer preheater between the oxidizer inlet and the fuel cell stack; a fuel outlet cooler; an oxidizer outlet cooler; a burner receiving fuel and oxidizer; a turbine exhaust heat exchanger; and a generator; wherein: the heat pump comprises a heat driven heat pump; an output of the solid oxide fuel cell stack is connected to an inlet of the heat pump and an output of the heat pump is connected to the inlet of the turbine; the fuel preheater and the fuel outlet cooler comprise a single heat exchanger; the oxidizer preheater and the turbine exhaust heat exchanger comprise a single heat exchanger; and the oxidizer outlet cooler comprises a portion of a heat exchanger located in the heat driven heat pump. 24. A power generation system comprising: a solid oxide fuel cell stack; a heat pump; a turbine; a heat sink; a fuel inlet; an oxidizer inlet; a fuel compressor; a first oxidizer compressor; a fuel preheater between the fuel inlet and the fuel cell stack; an oxidizer preheater between the oxidizer inlet and the fuel cell stack; a fuel outlet cooler; an oxidizer outlet cooler; a burner receiving fuel and oxidizer; a turbine exhaust heat exchanger; and a generator; wherein: the heat pump comprises a heat driven heat pump; an output of the solid oxide fuel cell stack is connected to an inlet of the heat pump and an output of the heat pump is connected to the inlet of the turbine; the fuel preheater and the turbine exhaust heat exchanger comprise a single heat exchanger; the oxidizer preheater and the oxidizer outlet cooler comprise a single heat exchanger; and the fuel outlet cooler comprises a portion of a heat exchanger located in the heat driven heat pump. 25. A power generation system comprising: a solid oxide fuel cell stack; a heat pump; a turbine; a heat sink; a fuel inlet; an oxidizer inlet; a fuel compressor; a first oxidizer compressor; a fuel preheater between the fuel inlet and the fuel cell stack; an oxidizer preheater between the oxidizer inlet and the fuel cell stack; a fuel outlet cooler; an oxidizer outlet cooler; a burner receiving fuel and oxidizer; a turbine exhaust heat exchanger; and a generator; wherein: the heat pump comprises a heat driven heat pump; an output of the solid oxide fuel cell stack is connected to an inlet of the heat pump and an output of the heat pump is connected to the inlet of the turbine; and a first conduit connects an output of the heat driven heat pump and an input of the burner. 26. The system of claim 25, wherein a second conduit connects an output of the burner to an input of the turbine. 27. A power generation system comprising: a solid oxide fuel cell stack; a heat pump; a turbine; a heat sink; a fuel inlet; an oxidizer inlet; a fuel compressor; a first oxidizer compressor; a fuel preheater between the fuel inlet and the fuel cell stack; an oxidizer preheater between the oxidizer inlet and the fuel cell stack; a fuel outlet cooler; an oxidizer outlet cooler; a burner receiving fuel and oxidizer; a turbine exhaust heat exchanger; a generator; and a mechanical coupling which transmits mechanical energy from the turbine to the fuel compressor, the oxidizer compressor and the generator; wherein: the heat pump comprises a heat driven heat pump; and an output of the solid oxide fuel cell stack is connected to an inlet of the heat pump and an output of the heat pump is connected to the inlet of the turbine. 28. A power generation method, comprising: providing electrical power from a solid oxide fuel cell stack to an appliance; providing high temperature heat from the solid oxide fuel cell stack to a heat pump; and cooling the appliance using the heat pump, wherein an electrical power load provided by the solid oxide fuel cell stack and a cooling load on the heat pump are matched to requirements of the appliance. 29. The method of claim 28, further comprising providing moderate temperature heat from the heat pump to a heat sink. 30. The method of claim 29, wherein no additional cooling devices nor significant additional electrical power are required to power and cool the appliance. 31. The method of claim 30, wherein: the appliance comprises a data center; and the heat pump comprises a heat driven heat pump. 32. The method of claim 29, further comprising: inputting fuel to the fuel cell stack; inputting an oxidizer to the fuel cell stack; preheating the fuel before it reaches the fuel cell stack; preheating the oxidizer before it reaches the fuel cell stack; cooling exhaust fuel from the fuel cell stack; and cooling exhaust oxidizer from the fuel cell stack. 33. The method of claim 32, further comprising providing the exhaust fuel and the exhaust oxidizer into a burner. 34. The method of claim 33, further comprising: using fuel cell high temperature heat to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; using exhaust fuel to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; using exhaust oxidizer to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; and using the burner to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer. 35. The method of claim 34, further comprising: using the exhaust fuel to preheat the input fuel; using the exhaust oxidizer to preheat the input oxidizer; and using the burner to heat the heat pump. 36. The method of claim 34, further comprising: using the exhaust fuel to preheat the input fuel; using the exhaust oxidizer to heat the heat pump; and using the burner to preheat the input oxidizer. 37. The method of claim 34, further comprising: using the exhaust fuel to preheat the input oxidizer; using the exhaust oxidizer to preheat the input fuel; and using the burner to heat the heat pump. 38. The method of claim 34, further comprising driving a turbine with an output of the burner. 39. The method of claim 38, further comprising transmitting mechanical energy from the turbine to a fuel compressor, an oxidizer compressor and a generator. 40. The method of claim 38, further comprising: using fuel cell high temperature heat to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; using exhaust fuel to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; using exhaust oxidizer to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer; and using the turbine exhaust to heat or preheat at least one of the heat pump, the input fuel and the input oxidizer. 41. The method of claim 40, further comprising: using the exhaust fuel to preheat the input fuel; using the exhaust oxidizer to preheat the input oxidizer; and using the turbine exhaust to heat the heat pump. 42. The method of claim 40, further comprising: using the exhaust fuel to preheat the input fuel; using the exhaust oxidizer to heat the heat pump; and using the turbine exhaust to preheat the input oxidizer. 43. The method of claim 40, further comprising: using the exhaust fuel to heat the heat pump; using the exhaust oxidizer to preheat the input oxidizer; and using the turbine exhaust to preheat the input fuel. 44. The method of claim 38, further comprising inputting a separate oxidizer into the burner from that input into the fuel cell stack. 45. The method of claim 28, further comprising adjusting a relative magnitude of electrical power and cooling load. 46. The method of claim 45, wherein adjusting the relative magnitude of electrical power and cooling load comprises changing an amount of fuel provided to the fuel cell, such that more or less unreacted fuel is available to be reacted in the burner. 47. The method of claim 29, further comprising heating the appliance using the heat pump. 48. The method of claim 47, further comprising adjusting a relative magnitude of electrical power and cooling can be adjusted. 49. The method of claim 48, wherein adjusting the relative magnitude of electrical power and cooling load comprises changing an amount of fuel provided to the fuel cell, such that more or less unreacted fuel is available to be reacted in the burner. 50. A power generation method, comprising: providing electrical power from a solid oxide fuel cell stack to an appliance; providing high temperature heat from the solid oxide fuel cell stack to a heat pump; and heating the appliance using the heat pump, wherein an electrical power load provided by the solid oxide fuel cell stack and a heating load on the heat pump are matched to requirements of the appliance. 51. The method of claim 50, further comprising providing moderate temperature heat from the heat pump to a heat sink. 52. A power generation system, comprising: a solid oxide fuel cell stack; and an absorption heat driven heat pump; wherein: the solid oxide fuel cell stack is adapted to provide electrical power for an appliance and to provide high temperature heat to the heat pump; and the heat pump is adapted to receive the high temperature heat from the solid oxide fuel cell stack to cool the appliance. 53. The system of claim 52, wherein the heat driven heat pump is adapted to provide moderate temperature heat to a heat sink. 54. The system of claim 53, wherein the heat pump comprises an absorption chiller using a water working medium. 55. The system of claim 53, wherein the absorption chiller comprises a LiBr-water or an ammonia-water chiller. 56. The system of claim 53, wherein: the appliance comprises a data center; and an electrical power load provided by the solid oxide fuel cell stack and a cooling load on the heat pump are matched to requirements of the data center.
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