SIMPLIFIED MODELING OF TRANSIENT DISTRIBUTION SYSTEM EFFICIENCY FOR DUCTS IN ATTICS
Michael Brandemuehl, Peter Alspach
The objective of this work is to develop simplified methods for characterizing the thermal losses in residential air distribution systems. The methods developed here specifically seek to describe the hourly variations in distribution system performance relative to a seasonal average value as might be obtained under ASHRAE Standard 152. The simplified methods are developed using the detailed simulation tool FSEC 3.0 to generate results for a prototypical residence with ducts in the attic. Results indicate that the hourly variations in distribution efficiency can be simply correlated
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