Air exchange rates in new energy-efficient manufactured housing

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During the 1989--1990 heating season, Pacific Northwest Laboratory, for the Bonneville Power Administration, measured the ventilation characteristics of 139 newly constructed energy-efficient manufactured homes and a control sample of 35 newer manufactured homes. A standard door fan pressurization technique was used to estimate shell leakiness, and a passive perfluorocarbon tracer technique was used to estimate overall air exchange rates. A measurement of the designated whole-house exhaust system flow rate was taken as well as an occupant and structure survey. The energy-efficient manufactured homes have very low air exchange rates, significantly lower than either existing manufactured homes or site-built homes. The ... continued below

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7 pages

Creation Information

Hadley, D. & Bailey, S. October 1, 1990.

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Description

During the 1989--1990 heating season, Pacific Northwest Laboratory, for the Bonneville Power Administration, measured the ventilation characteristics of 139 newly constructed energy-efficient manufactured homes and a control sample of 35 newer manufactured homes. A standard door fan pressurization technique was used to estimate shell leakiness, and a passive perfluorocarbon tracer technique was used to estimate overall air exchange rates. A measurement of the designated whole-house exhaust system flow rate was taken as well as an occupant and structure survey. The energy-efficient manufactured homes have very low air exchange rates, significantly lower than either existing manufactured homes or site-built homes. The standard deviation of the effective leakage area for this sample of homes is small (25% to 30% of the mean), indicating that the leakiness of manufactured housing stock can be confidently characterized by the mean value. There is some indication of increased ventilation due to the energy-efficient whole-house ventilation specification, but not directly related to the operation of the whole-house system. The mechanical systems as installed and operated do not provide the intended ventilation; consequently indoor air quality could possibly be adversely impacted and moisture/condensation in the living space is a potential problem. 6 refs., 6 figs., 5 tabs.

Physical Description

7 pages

Notes

NTIS, PC A02/MF A01 - OSTI; GPO Dep.

Source

  • 1990 symposium on improving building systems in hot and humid climate, Fort Worth, TX (USA), 9-10 Oct 1990

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  • Other: DE91002814
  • Report No.: PNL-SA-18205
  • Report No.: CONF-9010246--1
  • Grant Number: AC06-76RL01830
  • Office of Scientific & Technical Information Report Number: 6489113
  • Archival Resource Key: ark:/67531/metadc1203479

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 1, 1990

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • July 16, 2019, 6:16 p.m.

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Hadley, D. & Bailey, S. Air exchange rates in new energy-efficient manufactured housing, article, October 1, 1990; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1203479/: accessed July 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.