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Performance Analysis of Dual-Fan, Dual-Duct Constant Volume Air-Handling Units
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Date
2001
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Energy Systems Laboratory (http://esl.tamu.edu)
Texas A&M University (http://www.tamu.edu)
Texas A&M University (http://www.tamu.edu)
Abstract
Dual-fan, dual-duct air-handling units introduce
outside air directly into the cooling duct and use two
variable speed devices to independently maintain the
static pressure of the hot and the cold air ducts.
Analytical models have been developed to compare
fan power and thermal energy consumption of dualfan,
dual-duct constant volume air-handling units
with single-fan, dual-duct constant volume airhandling
units. This study shows that the dual-fan,
dual-duct system uses less fan power and less
thermal energy during winter, and uses more thermal
energy during summer. Thermal energy performance
can be significantly improved if the thermal energy
penalty can be decreased or eliminated.