Reflective Insulation for Energy Conservation in South East Asia

2017 International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Teh, Khar San^1,3 ; Yarbrough, David W.^2,4 ; Lim, Chin Haw^1,5 ; Salleh, Elias^1

Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia^1

R and D Services, Inc., Cookeville

TN, United States^2

Master Degree Candidate at SERI, UKM, United States^3

V. President of RandD Services, Inc., United States^4

Senior Research Fellow at SERI, UKM, Malaysia^5

关键词: Air space;    Attic spaces;    Equatorial regions;    Insulation performance;    Reflective insulation;    Southeast Asia;    Time averages;    Transient data;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/63/1/012047/pdf
DOI  :  10.1088/1755-1315/63/1/012047

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

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.