Field Study of Interior Duct System Design, Construction and Performance Duct Chases and Air Handler Closets.

McIlvaine, J. ; Beal, D. ; Fairey, P.

Technical Information Center Oak Ridge Tennessee

关键词: Ducts;    Air distribution systems;    Heating systems;    Attics;    Air quality;   

RP-ID  :  DE2004823970

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

By removing air distribution and conditioning equipment from unconditioned spaces, homeowners stand to benefit substantially with respect to both energy savings and indoor air quality. Duct leakage introduces: greater heating and cooling loads from air at extreme temperatures and humidity levels; outside air and air from unconditioned spaces that may contain air borne contaminants, combustion gases, pollen, mold spores, and/or particles of building materials; higher whole-house infiltration/exfiltration rates. Exemplary studies conducted since 1990 have demonstrated the prevalence of duct leakage throughout the United States and measured energy savings of approximately 20% during both heating and cooling seasons from leakage reduction. These all dealt with duct leakage to and/or from unconditioned spaces.