Study of Solar– PCM Walls for domestic hot water production under the tropical climate of Thailand
Pisut Thantonga, Joseph Khedarib, Preeda Chantawongc,*
a Department of Applied Science and Social, College of Industrial Technology ,King Mongkut’s University of Technology North Bangkok,
Bangkok, 10800, Thailand
b Building Energy Expert, 12 Place du soleil, 38920 Crolles, France
c Energy Engineering Technology program, College of Industrial Technology,King Mongkut’s University of Technology North Bangkok,
Bangkok, 10800, Thailand
A B S T R A C T
This paper reports investigation on the thermal performance of a new configuration of solar collector integrating a paraffin wax. This configuration, called Solar-PCM Wall (S-PCMW), is aimed for domestic hot water production and reduction of heat transferred from outside under the tropical climate of Thailand. The S-PCMW consisted of a glaze pane, air gap, black-painted pipes 0.01 m. in diameter, a 1 cm paraffin wax tank made from steel, and insulator. The S-PCMW can hold approximately 10 litters of water and its total thickness is 0.12 m. Comparison between S-PCMW and Simple Concrete Wall (SW) using two small house models of the same volume (4.05 m3) was presented and discussed. The experimental results revealed that indoor temperature of the room mounted with S-PCMW was lower than that utilizing SW. Heat gain through the south wall of S-PCMW decreased considerably when compared with the another type. The S-PCMW could produce hot water at temperature varying between 45-51ºC. Thus, it has been proved that the S-PCMW is efficient in terms of heat gain reduction and hot water production. Additionally, it could help to promote solar systems integration in buildings and residences.
© 2018 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of 3rd International Conference on Applied Physics and Materials Applications.
Keywords: Solar-Phase Change Material Wall (S-PCMW); Energy Saving; Reduced heat gain; Under Tropical Climate of Thailand
Available online at www.sciencedirect.com
Materials Today: Proceedings 5 (2018) 14880–14885
