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

Fingerprint

Air
Collector efficiency
Bimetals
Plastic films
Vents
Metals

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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.
Lau, Andrew Scott ; Hillanbrand, David V. ; Schroder, William K. / SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS. Unknown Host Publication Title. editor / E. bilgen ; K.G.T. Hollands. Pergamon Press, 1986. pp. 213-217
@inproceedings{daf2452e0a0d4085b6a20254cbe76bb2,
title = "SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS.",
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.",
author = "Lau, {Andrew Scott} and Hillanbrand, {David V.} and Schroder, {William K.}",
year = "1986",
month = "12",
day = "1",
language = "English (US)",
isbn = "0080331777",
publisher = "Pergamon Press",
pages = "213--217",
editor = "E. bilgen and K.G.T. Hollands",
booktitle = "Unknown Host Publication Title",

}

Lau, AS, Hillanbrand, DV & Schroder, WK 1986, SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS. in E bilgen & KGT Hollands (eds), Unknown Host Publication Title. Pergamon Press, pp. 213-217.

SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS. / Lau, Andrew Scott; Hillanbrand, David V.; Schroder, William K.

Unknown Host Publication Title. ed. / E. bilgen; K.G.T. Hollands. Pergamon Press, 1986. p. 213-217.

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

TY - GEN

T1 - SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS.

AU - Lau, Andrew Scott

AU - Hillanbrand, David V.

AU - Schroder, William K.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0022937179&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022937179&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0022937179

SN - 0080331777

SP - 213

EP - 217

BT - Unknown Host Publication Title

A2 - bilgen, E.

A2 - Hollands, K.G.T.

PB - Pergamon Press

ER -

Lau AS, Hillanbrand DV, Schroder WK. SELF-ACTUATING BACKDRAFT DAMPER FOR PASSIVE SOLAR APPLICATIONS. In bilgen E, Hollands KGT, editors, Unknown Host Publication Title. Pergamon Press. 1986. p. 213-217