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Residential Humidity Control: Exciting New Opportunities with Air Flow Modulation
Abstract
This paper reviews psychrometric principles and
shows how to formulate a psychrometric chart from a
single equation. The chart is used to demonstrate
the manner in which a conventional single-speed air
conditioner adjusts its operating point in an
attempt to control humidity over a range of conditions.
The system performance with an electronically
commutated motor (ECM) driving the blower is
then presented.
With ECM blower speed control, it is possible to
raise the sensible capacity, reduce the sensible
capacity, and boost the efficiency of an otherwise
conventional air conditioner. This makes such
systems ideal to respond to the changing loads in a
hot and humid climate.
Citation
Crawford, J. G. (1987). Residential Humidity Control: Exciting New Opportunities with Air Flow Modulation. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /6478.