Reflective Insulation for Energy Conservation in South East Asia

Khar San Teh, David W. Yarbrough, Chin Haw Lim, Elias @ Ilias Salleh

Research output: Contribution to journalArticle

Abstract

Thermal resistances have been measured for attic spaces insulated with reflective insulations. Three test units located in Malaysia were instrumented to provide heat flux and temperatures for the calculation of time-average RSI-values (RSI is representing R-value in SI units). The RSI for attics with enclosed reflective air spaces were in the range 2-3 m2•K/W while the uninsulated attics averaged about 0.4 m2•K/W. The RSI-values determined in this project were for heat-flow down, the predominant heat-flow direction for attic spaces in Equatorial regions. The observed thermal resistances due to the installation of the reflective insulation results in an 80-90% annual decrease in the heat transfer across the ceiling. This reduces utility usage for air conditioned units and improved comfort for occupants. The research demonstrates the use of transient data for the determination of thermal insulation performance and usefulness of enclosed reflective air spaces for thermal resistance.

Original languageEnglish
Article number012047
JournalIOP Conference Series: Earth and Environmental Science
Volume63
Issue number1
DOIs
Publication statusPublished - 9 May 2017

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energy conservation
insulation
heat flow
air
heat flux
heat transfer
Asia
temperature

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Reflective Insulation for Energy Conservation in South East Asia. / Teh, Khar San; Yarbrough, David W.; Lim, Chin Haw; Salleh, Elias @ Ilias.

In: IOP Conference Series: Earth and Environmental Science, Vol. 63, No. 1, 012047, 09.05.2017.

Research output: Contribution to journalArticle

Teh, Khar San ; Yarbrough, David W. ; Lim, Chin Haw ; Salleh, Elias @ Ilias. / Reflective Insulation for Energy Conservation in South East Asia. In: IOP Conference Series: Earth and Environmental Science. 2017 ; Vol. 63, No. 1.
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