Multi-stage hybrid evaporative cooling system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-017/04
F28D-005/00
출원번호
UP-0269431
(2005-11-08)
등록번호
US-7765827
(2010-08-24)
발명자
/ 주소
Schlom, Leslie A.
Becwar, Andrew J.
출원인 / 주소
Everest Acquisition Holdings, Inc.
대리인 / 주소
Seed Intellectual Property Law Group PLLC
인용정보
피인용 횟수 :
17인용 특허 :
43
초록▼
A multi-stage hybrid evaporative cooling system is described as having a direct evaporative cooling subsystem and an indirect evaporative cooling subsystem having one of a horizontal and a vertical set of heat exchanger channels. The multi-stage hybrid evaporative cooling system with a horizontal se
A multi-stage hybrid evaporative cooling system is described as having a direct evaporative cooling subsystem and an indirect evaporative cooling subsystem having one of a horizontal and a vertical set of heat exchanger channels. The multi-stage hybrid evaporative cooling system with a horizontal set of heat exchanger channels has a portion of the horizontal heat exchanger channels partially extended into a next stage of the multi-stage system. The multi-stage hybrid evaporative cooling system with the vertical set of heat exchanger channels includes a first set of vertical set of heat exchanger channels spanning a substantial vertical height of the stage of the hybrid evaporative cooling system, and a second set spanning approximately half the height of the stage. The multi-stage hybrid evaporative cooling system further includes a refrigeration system for lowering the temperature of the indirect evaporative cooling subsystem air without affecting its pressure flow.
대표청구항▼
What is claimed is: 1. A multi-stage hybrid evaporative cooling system comprising: a first stage including a first plurality of heat exchangers, the first plurality of heat exchangers configured to exchange heat between a first direct evaporative cooling subsystem and a first indirect evaporative c
What is claimed is: 1. A multi-stage hybrid evaporative cooling system comprising: a first stage including a first plurality of heat exchangers, the first plurality of heat exchangers configured to exchange heat between a first direct evaporative cooling subsystem and a first indirect evaporative cooling subsystem; and a second stage adjacent to the first stage, the second stage including a chamber, a second plurality of heat exchangers, the second plurality of heat exchangers configured to exchange heat between a second direct evaporative cooling subsystem and a second indirect evaporative cooling subsystem; wherein the second plurality of heat exchangers has an upper set of heat exchangers and a lower set of heat exchangers, the lower set of heat exchangers extending only partially through the chamber of the second stage, the lower set of heat exchangers has at least some airflow out of an outlet of the lower set that surrounds an exterior surface of an end section of the lower set of heat exchangers and the airflow flows through the second direct evaporative cooling subsystem. 2. The multi-stage hybrid evaporative cooling system of claim 1, wherein the first stage further includes a first sump configured to hold coolant, such that, in operation, the coolant is delivered to the first plurality of heat exchangers. 3. The multi-stage hybrid evaporative cooling system of claim 2, wherein the second stage further includes a second sump configured to hold coolant, such that, in operation, the coolant is delivered to the second plurality of heat exchangers. 4. The multi-stage hybrid evaporative cooling system of claim 3, wherein the first sump and the second sump are fluidly coupled such that coolant from the second sump flows to the first sump. 5. The multi-stage hybrid evaporative cooling system of claim 1, further comprising at least one media configured to receive coolant, the at least one media positioned such that, in operation, air emerging from the second indirect evaporative cooling subsystem passes through the at least one media. 6. The multi-stage hybrid evaporative cooling system of claim 5, wherein the at least one media is further configured such that the coolant received at the at least one media flows to a sump of the second stage. 7. The multi-stage hybrid evaporative cooling system of claim 1, further comprising: a refrigeration unit including: an expansion device configured to cause a liquid refrigerant to become a low temperature, low pressure refrigerant; an evaporator-chiller configured to lower a temperature of a coolant using the low temperature, low pressure refrigerant; a compressor configured to compress the low temperature, low pressure refrigerant from the evaporator-chiller to generate a high temperature, high pressure refrigerant; and a condenser coil configured to cool the high temperature, high pressure refrigerant from the compressor to generate a medium temperature refrigerant, the condenser coil coupled to the expansion device. 8. The multi-stage hybrid evaporative cooling system of claim 7, wherein the refrigeration unit is configured such that the coolant from the evaporator-chiller is delivered to a sump of the second stage. 9. The multi-stage hybrid evaporative cooling system of claim 7, wherein at least a portion of the condenser coil is positioned along a path of an airflow of at least one of the first direct evaporative cooling subsystem and the second direct evaporative cooling subsystem. 10. The multi-stage hybrid evaporative cooling system of claim 1, wherein the second plurality of heat exchangers comprise horizontal heat exchanger channels, and wherein, in operation, the at least some air emerges from the at least one of the second plurality of heat exchangers that extends only partially through the second stage to flow through the second direct evaporative cooling subsystem. 11. The multi-stage hybrid evaporative cooling system of claim 1, wherein the outlet of the lower set of heat exchangers is spaced apart from a nearest wall of the second stage to allow air flowing from the outlet to circulate about the exterior surface of the end section prior to flowing out of the second direct evaporative cooling subsystem. 12. A multi-stage hybrid evaporative cooling system comprising: a first stage including a first plurality of heat exchangers, the first plurality of heat exchangers configured to exchange heat between a first direct evaporative cooling subsystem and a first indirect evaporative cooling subsystem; and a second stage adjacent to the first stage, the second stage including a chamber and a second plurality of heat exchangers, the second plurality of heat exchangers configured to exchange heat between a second direct evaporative cooling subsystem and a second indirect evaporative cooling subsystem; wherein the second plurality of heat exchangers includes an upper set of heat exchangers and a lower set of heat exchangers, the lower set of heat exchangers extending only partially through the chamber of the second stage, the lower set of heat exchangers having at least some airflow out of the open end section flowing about an exterior surface of the open end section and the airflow flowing through the second direct evaporative cooling subsystem. 13. The multi-stage hybrid evaporative cooling system of claim 12, wherein the opening of the open end section is positioned at a central region of the chamber, such that, in operation, at least some of the air that flows out of the opening cools the open end section prior to flowing out of the second direct evaporative cooling subsystem. 14. The multi-stage hybrid evaporative cooling system of claim 12, wherein the open end section is configured to transfer heat between the air that flows through a passageway of the open end section and the second direct evaporative cooling subsystem before the air in the passageway flows out of the opening and into the chamber.
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Williams, Donald, Temperature modulated desiccant evaporative cooler and indirect and direct evaporative air conditioning systems, methods, and apparatus.
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