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TO-82-08-1 — Comparison of Field Performance to Steady State Performance for Two Dealer-lnstalled Air-to-Air Heat Pumps

$7.50

Conference Proceeding by ASHRAE, 1982

Category:

Description

Two dealer-supplied and -installed, commercially available air-to-air heat pumps were tested under both steady state and long-term field conditions at a site near Knoxville, TN. Results from these tests indicate that in the Knoxville area, during the heating season, losses caused by duty cycling, frosting, and defrosting may exceed 40% in some spring months and cause seasonal efficiencies to fall about 20% below the efficiency of steady state performance. Another approximately 5% decrease in efficiency results from resort to backup resistance heaters at low ambient temperatures. In the cooling mode, cycling losses reduce efficiency by about 10 to 20%.

Product Details

Published:
1982
Number of Pages:
13
File Size:
1 file , 1.4 MB
Product Code(s):
D-TO-82-08-1
Note:
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