This paper used ANSYS finite element analysis software to simulate numerically and analyze the heat transfer process in the phase change material wall adding paraffin and the common wall. The numerical simulation results were compared with the experimental results. The change laws of the surface temperature and the thermal flow through the wall were given when the wall was heated. Energy-saving effect and feasibility of phase change material wall were studied by comparing with the common wall. The results show that numerical simulation results agree well with the experimental test results and the simulation method is feasible. Compared with the traditional wall, the temperature change of PCM wall is more gently and the thermal fluctuation is smaller than that of common wall. Raising latent heat and heat conductivity is the main way to prolong the constant temperature time of materials, and can improve the storage effect of phase-change materials in the wall.
Keywords. Numerical simulation; phase change material wall; thermal flow
References
Feustel HE, Stetiu C.1997. Thermal performance of phase change wallboard for residential cooling application. Lawrence Berkeley National laboratory. Report LBL-38320. The United States.
M.R Avikumar, DR. PSS.Srinivasa. 2005. Phase change material as a thermal energy storage material for cooling of building. Journal of Theoretical and Applied Information technology. pp503-511. India.
Stovall T K, Tomlinson J J. 1995. What are the potential benefits of including latent storage in common wallboard. ASME T J Sol Energy Engine. Vol 117. No 4. pp318—325. The United States.
Lin Kunping, Zhang Yinping, Jiang Y, et al. 2003. Simulation and evaluation on the thermal performance of PCM wallboard rooms located in various climate regions of china in summer. Solar Energy. Vol 24. No1. pp 46-52. China.
Lin Kunping, Zhang Yinping, Jiang Y, et al. 2003. Simulation and designing of PCM wallboard room combined with controlled night ventilation in summer. Solar Energy. Vol 24. No2. pp145-151. China.
Zhou Guobing, Zhang Yinping, Lin Kunping, et al. 2008. Thermal analysis of a direct-gain room with shape-stabilized PCM plates. Renew Energy. Vol 33. No6. pp1228-1236. China.
Xu X, Zhang Yinping, Lin Kunping, et al. 2005. Modeling and simulation of the thermal performance of shape-stabilized phase change material floor used in passive solar buildings. Energy Buildings. Vol 37. pp1084-1091. China.
Zhou Guobing Zhang Yinping, Wang Xin, et al. 2007. An assessment of mixed type PCM-gypsum and shape-stabilized PCM plates in a building for passive solar heating. Sol Energy. Vol 81. No11. pp1351-1360. China.
How to cite this article
Li, L., Yan, Q. and Liang, C. (2010). 'Numerical simulation of the heat transfer process in the phase change material wall'. SET Proceedings, 9, pp. 1-6. https://doi.org/10.65582/set.2010.154
