Power generation systems with earth heat transfer
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-027/00
F25D-023/12
F03G-007/00
출원번호
US-0225451
(2002-08-21)
발명자
/ 주소
Johnson, Jr., Howard E.
Tinkler, Gregory
출원인 / 주소
Enlink Geoenergy Services, Inc.
대리인 / 주소
McClung, Guy
인용정보
피인용 횟수 :
6인용 특허 :
5
초록▼
A system for increasing efficiency of a closed-earth-loop heat pump system; for increasing heat pump efficiency by feeding relatively colder water to heat pumps when they operate in a cooling mode; and, in certain aspects, systems for using excess produced heat and/or waste heat generated by an air
A system for increasing efficiency of a closed-earth-loop heat pump system; for increasing heat pump efficiency by feeding relatively colder water to heat pumps when they operate in a cooling mode; and, in certain aspects, systems for using excess produced heat and/or waste heat generated by an air conditioning system that employs an earth loop heat exchange apparatus, the system having power production apparatus that uses the excess produced heat and/or waste heat from air conditioning apparatus to generate electricity and reduce the heat dissipation load on the earth loop heat exchange apparatus; and, in one aspect, such a system that provides cooling fluid to a fuel cell that produces water and electricity.
대표청구항▼
A system for increasing efficiency of a closed-earth-loop heat pump system; for increasing heat pump efficiency by feeding relatively colder water to heat pumps when they operate in a cooling mode; and, in certain aspects, systems for using excess produced heat and/or waste heat generated by an air
A system for increasing efficiency of a closed-earth-loop heat pump system; for increasing heat pump efficiency by feeding relatively colder water to heat pumps when they operate in a cooling mode; and, in certain aspects, systems for using excess produced heat and/or waste heat generated by an air conditioning system that employs an earth loop heat exchange apparatus, the system having power production apparatus that uses the excess produced heat and/or waste heat from air conditioning apparatus to generate electricity and reduce the heat dissipation load on the earth loop heat exchange apparatus; and, in one aspect, such a system that provides cooling fluid to a fuel cell that produces water and electricity. quid refrigerant to a plurality of evaporator coils, the coils disposed in a plurality of chambers for maintaining a preset temperature in each chamber, each coil receiving liquid refrigerant and returning gas refrigerant through an individual refrigerant line, the improvement comprising: a) an electronic controller; b) a temperature sensor disposed in each chamber providing an output electric signal to the controller related to the temperature being provided by the coil; c) a plurality of on/off valves, one on/off valve in the returning gas refrigerant line connected to each coil, each valve operatively controlled by the controller for enabling the flow of refrigerant through the coil in a first mode of operation, and for obstructing the flow of refrigerant in a second mode of operation; d) the controller being provided with means for presetting the operating mode of each valve based on the signal received from the temperature sensor associated with its respective coil, so that in the first mode the coil receives refrigerant flow when the sensor indicates that the temperature sensed is above a preset value, and in the second mode the coil does not receive refrigerant flow when the temperature sensed is below a preset temperature; and e) the controller adapted for controlling operation of selected compressors based on the system requirements. 7. The system according to claim 6 in which the on/of valve is part of an evaporator pressure regulator that is set wide open. 8. A method of controlling the temperatures in refrigerated chambers in a refrigeration system having a plurality of compressors connected in parallel and a condenser for supplying liquid refrigerant to a plurality of evaporator coils, the coils disposed in a plurality of said chambers for maintaining a preset temperature in each chamber, each coil receiving liquid refrigerant from an individual liquid refrigerant line and returning gas refrigerant through an evaporator pressure regulator in an individual gas refrigerant line, the method comprising: a) providing a temperature sensor disposed in each chamber providing an output signal related to the temperature being provided by the coil; b) providing a controller for receiving the output signal from each sensor; c) adjusting each evaporator pressure regulator wide open; d) connecting the controller to an on/off valve in each individual gas refrigerant; and f) providing the controller with means for presetting the operating mode of each valve based on the signal received from the temperature sensor associated with its respective coil, so that in the first mode the coil receives refrigerant flow when the sensor indicates that the temperature sensed is above a preset value, and in the second mode the coil does not receive refrigerant flow when the temperature sensed is below a preset temperature. 9. The method according to claim 8 further comprising adapting the controller for controlling operation of selected compressors based on the system requirements. 10. The method according to claim 9 in which the on/off valve is integral with the evaporator pressure regulator. 11. The method according to claim 8 in which the on/off valve is integral with the evaporator pressure regulator. Kawaguchi et al., 062/133; US-6550260, 20030400, Sullivan, 062/126; US-6617727, 20030900, Iwasa et al., 310/075.R; US-6622500, 20030900, Archibald et al., 062/173
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이 특허에 인용된 특허 (5)
Wolf Herman B. (Rte. 1 ; Box 99-P Pineville NC 28134), Geothermal heating and cooling system.
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