IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0952157
(2007-12-07)
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등록번호 |
US-7654101
(2010-03-31)
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발명자
/ 주소 |
|
대리인 / 주소 |
Molldrem, Jr., Bernhard P.
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인용정보 |
피인용 횟수 :
6 인용 특허 :
12 |
초록
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A geothermal desiccant cycle cools and dehumidifies the air in an indoor conditioned space. The return air is split into two streams. One of the streams passes through a desiccant wheel to remove water vapor and then through a cooling coil for sensible cooling from geothermal water. The other stream
A geothermal desiccant cycle cools and dehumidifies the air in an indoor conditioned space. The return air is split into two streams. One of the streams passes through a desiccant wheel to remove water vapor and then through a cooling coil for sensible cooling from geothermal water. The other stream is heated to increase its capacity to absorb moisture, and then is passed through the desiccant wheel to pick up the moisture transferred from the first stream and regenerate the desiccant. The second air stream, which now has a higher dewpoint temperature, flows through a geothermal cooling coil, for sensible cooling as well as condensation of the moisture. The two air streams are mixed and supplied back to the conditioned space. A regenerative air-air heat exchanger can be used to recover some of the heat used in heating the second air stream.
대표청구항
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I claim: 1. A cooling arrangement for cooling and dehumidifying air in a conditioned space, including a return duct in which air from the conditioned space enters, a desiccant device for dehumidification of an airflow, an air-to-air heat exchanger in which air in a first pathway exchanges thermal e
I claim: 1. A cooling arrangement for cooling and dehumidifying air in a conditioned space, including a return duct in which air from the conditioned space enters, a desiccant device for dehumidification of an airflow, an air-to-air heat exchanger in which air in a first pathway exchanges thermal energy with air in a second pathway therethrough, a heating element, first and second cooling coils for cooling the air and each being supplied with water from a source of cooling, and a supply air plenum from which conditioned air is sent back into the conditioned space; and wherein return air in said return air duct is divided and directed into separate first and second courses; a) wherein in said first course the return air passes through said desiccant device to remove humidity from the air, the air leaving the desiccant device passes through said first cooling coil to cool the air, and the air leaving the first cooling coil enters the supply air plenum; b) wherein the second course, the return air enters the first pathway through said air-to-air heat exchanger, the air leaving said first pathway is heated by said heater element and passes through said desiccant device to pick up humidity from the desiccant device, the air leaving the desiccant device passes through the second pathway through said air-to-air heat exchanger, and the air leaving the second pathway of said heat exchanger passes through said second cooling coil to cool and dehumidify the air in the second course, and the air exiting the second cooling coil passes to the supply air plenum where it mixes with the air of the first course, and then returns to the conditioned space. 2. The cooling arrangement of claim 1, wherein the water is supplied from a geothermal well and has a temperature between about 50° F. and 60° F. 3. The cooling arrangement of claim 1, wherein said regenerative air-to-air heat exchanger is a counterflow heat exchanger. 4. The cooling arrangement of claim 1, wherein said regenerative air-to-air heat exchanger is a cross-flow heat exchanger. 5. The cooling arrangement of claim 1, comprising first and second blowers situated at said return duct and forcing air respectively through said first and second courses. 6. The cooling arrangement of claim 1, comprising a blower situated at said supply plenum and drawing air through said first and second courses. 7. The cooling arrangement of claim 6, comprising first and second independently controllable dampers situated in said first and second courses, respectively. 8. The cooling arrangement of claim 1, wherein said source of natural cooling is a geothermal well, and the arrangement further comprises a supplemental chiller for removing heat from water supplied from said geothermal well. 9. The cooling arrangement of claim 8, wherein said supplemental chiller transfers heat from the water supplied from the geothermal well to water that returns to the geothermal well. 10. The cooling arrangement of claim 1, wherein said desiccant device includes a desiccant wheel. 11. A cooling arrangement for cooling and dehumidifying air in a conditioned space, including a return duct in which air from the conditioned space enters, a desiccant device adapted for dehumidifying an air stream, a heating element, first and second cooling coils for cooling the air and each being supplied with water from a source of cooling, and a supply air plenum from which conditioned air is sent back into the conditioned space; and wherein return air in said return air duct is divided and directed into separate first and second courses; a) wherein in said first course the return air passes through said desiccant device to remove humidity from the air, the air leaving the desiccant device passes through said first cooling coil to cool the air, and the air leaving the first cooling coil enters the supply air plenum; b) wherein the second course, the return air is heated by said heater element and passes through said desiccant device to pick up humidity from the desiccant device, the air leaving the desiccant device passes through said second cooling coil to cool and dehumidify the air in the second course, and the air exiting the second cooling coil passes to the supply air plenum where it mixes with the air of the first course, and then returns to the conditioned space. 12. The cooling arrangement of claim 11, wherein the water is supplied from a geothermal well and has a temperature between about 50° F. and 60° F. 13. The cooling arrangement of claim 11, comprising first and second blowers situated at said return duct and forcing air respectively through said first and second courses. 14. The cooling arrangement of claim 11, comprising a blower situated at said supply plenum and drawing air through said first and second courses. 15. The cooling arrangement of claim 14, comprising first and second independently controllable dampers situated in said first and second courses, respectively. 16. The cooling arrangement of claim 11, comprising a supplemental chiller for removing heat from water supplied from a source of natural cooling. 17. The cooling arrangement of claim 11, wherein waste heat from said supplemental chiller is supplied to said heater element. 18. The cooling arrangement of claim 11, wherein said desiccant device comprises a desiccant wheel.
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