DEVELOPMENT OF A HYDRONIC ROOFTOP UNIT -- HYPAK

Lee, Eric ; Bourne, Dick ; Berman, Mark

Davis Energy Group, Inc. (United States)

关键词: Air Quality;    Greenhouse Effect;    Filtration;    Climates;    Occupants;   

DOI  :  10.2172/839102
RP-ID  :  NONE
RP-ID  :  FC26-00NT40991
RP-ID  :  839102

美国|英语

来源: UNT Digital Library

【 摘 要 】

The majority of US commercial floor space is cooled by rooftop HVAC units (RTU's). RTU popularity derives chiefly from their low initial cost and relative ease of service access without disturbing building occupants. Unfortunately, current RTU's are inherently inefficient due to a combination of characteristics that unnecessarily increase cooling loads and energy use. Existing RTU's in the U.S. consume an estimated 2.4 quads annually. Inefficient RTU's create an estimated 3.5% of U.S. CO{sub 2} emissions, thus contributing significantly to global warming. Also, RTU's often fail to maintain adequate ventilation air and air filtration. This project was developed to evaluate the feasibility of a radically new ''HyPak'' RTU design that significantly and cost-effectively increases RTU performance and delivered air quality. The objective of the HyPak Project was to design, develop and test a hydronic RTU that provides a quantum improvement over conventional RTU performance. Our proposal targeted 60% and 50% reduction in electrical energy use by the HyPak RTU for dry and humid climates, respectively, when compared with a conventional unit.