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Hydronic rooftop cooling systems

Patent ·
OSTI ID:983773
A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.
Research Organization:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-00NT40991
Assignee:
Davis Energy Group, Inc. (Davis, CA)
Patent Number(s):
7,322,205
Application Number:
10/885,001
OSTI ID:
983773
Country of Publication:
United States
Language:
English

References (1)

Simulation of an integrated hybrid desiccant vapor-compression cooling system journal October 1986

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