Energy Consumption Reduction by High Solar Reflective Paint

Authors

  • Chalakorn Chaowanapanit Silpakorn University
  • Thosapon Katejanekarn Silpakorn University
  • Vichuda Mettanant Silpakorn University
  • Peeranut Prakulpawong Beger Co., Ltd.

DOI:

https://doi.org/10.4186/ej.2021.25.2.215

Keywords:

high solar reflective paint, surface temperature reduction, energy saving, actual measurement, energy simulation

Abstract

High solar reflective paint has been widely used nowadays. It is claimed that it can substantially reduce heat gain through building envelope and energy consumption of houses. This study investigated energy saving from using high solar reflective paint compared with conventional paint. The chosen color tone was dark brown. Actual energy consumption was measured from two houses. One house was painted with high solar reflective paint. The other one was painted with conventional paint. Both houses were identical: 4 m wide x 6 m long x 3.16 m high with 24 m2 floor area. The houses were located in Samut Prakan, Thailand. From actual measurements during March and September 2019 which were in the hot and rainy seasons of Thailand, it was found that high solar reflective paint could reduce exterior surface temperature by as high as 8.1oC and save energy by 31.24% from decreasing cooling load due to less heat gain through the envelope. The energy simulation using the EnergyPlus software showed 32.69% saving which agreed well with the actual results.

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Author Biographies

Chalakorn Chaowanapanit
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Department of Mechanical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, 6 Rajamankha Nai Rd., Muang, Nakhon Pathom 73000, Thailand

Thosapon Katejanekarn
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Department of Mechanical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, 6 Rajamankha Nai Rd., Muang, Nakhon Pathom 73000, Thailand

Vichuda Mettanant
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Department of Mechanical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, 6 Rajamankha Nai Rd., Muang, Nakhon Pathom 73000, Thailand

Peeranut Prakulpawong
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Beger Co., Ltd., 90, 92 Bantudthong Rd., Rachatavee, Bangkok 10400, Thailand

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Published In
Vol 25 No 2, Feb 28, 2021
How to Cite
[1]
C. Chaowanapanit, T. Katejanekarn, V. Mettanant, and P. Prakulpawong, “Energy Consumption Reduction by High Solar Reflective Paint”, Eng. J., vol. 25, no. 2, pp. 215-222, Feb. 2021.
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