SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS.

Andrew Scott Lau, David V. Hillanbrand, William K. Schroder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Natural thermosiphoning of solar-heated air is important for many passive solar applications. It is also important to prevent reverse thermosiphoning at night, often with the use of backdraft dampers. Commonly used plastic film dampers may restrict air flow. Therefore, this project developed a novel backdraft damper that utilizes bimetal coils to actuate a conventional metal damper. Two prototype dampers were tested in the upper and lower vents of a thermosiphoning air panel. The upper damper opened fully on sunny days, but partial opening of the lower damper reduced collector efficiency by 19%. A single upper damper should minimize reverse thermosiphoning.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
EditorsE. bilgen, K.G.T. Hollands
PublisherPergamon Press
Pages213-217
Number of pages5
ISBN (Print)0080331777
StatePublished - Dec 1 1986

Publication series

Name
Volume1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Lau, A. S., Hillanbrand, D. V., & Schroder, W. K. (1986). SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS. In E. bilgen, & K. G. T. Hollands (Eds.), Unknown Host Publication Title (pp. 213-217). Pergamon Press.