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The effects of air leaks on solar air heating systemsThis paper presents the results of an investigation to determine the effects of leakages in collector and duct work on the system performance of a typical single-family residence solar air heating system. Positive (leakage out) and negative (leakage in) pressure systems were examined. Collector and duct leakage rates were varied from 10 to 30 percent of the system flow rate. Within the range of leakage rates investigated, solar contribution to heated space and domestic hot water loads was found to be reduced up to 30 percent from the no-leak system contribution with duct leakage equally divided between supply and return duct; with supply duct leakage greater than return leakage a reduction of up to 35 percent was noted. The negative pressure system exhibited a reduction in solar contribution somewhat larger than the positive pressure system for the same leakage rates.
Document ID
19800049278
Document Type
Conference Proceedings
Authors
Elkin, R. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Cash, M. (NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
ENERGY PRODUCTION AND CONVERSION
Meeting Information
Sun II(Atlanta, GA)
Distribution Limits
Public
Copyright
Other