干旱区生态环境知识资源中心(Arid): Simulation of Phase Change Material Absorbers for Passive Cooling of Solar Systems

Arid

DOI	10.3390/en15249288
	Simulation of Phase Change Material Absorbers for Passive Cooling of Solar Systems
	Hassabou, Abdelhakim; Isaifan, Rima J.
通讯作者	Isaifan, RJ
来源期刊	ENERGIES
EISSN	1996-1073
出版年	2022
卷号	15 期号:24
英文摘要	One of the main challenges that face the reliable use of photovoltaic solar systems in hot arid regions is the prevailing high temperatures during the day. To overcome this issue, Phase Change Materials (PCM) are used for passive cooling providing different options to attain sufficient thermal management solutions for different applications. Passive cooling can be achieved by adjusting a heat sink to the solar PV module. This can be realized by attaching a PCM layer or sensible heat storage to the backside of PV panels. Few studies have reported on simplified modeling and numerical procedures using the apparent heat capacity formulation and volume averaging technique as a robust approach to solving such sophisticated problems with minimal computational efforts, high accuracy, and in a short period of time. However, there is still a need to bridge the large-scale gap between the macroscale within the PCM layer, with a moving melting front, and the length scale of PV modules. Hence, this work focuses on modeling and simulating PCM-Matrix Absorbers (PCM-MA) that consist of fibrous aluminum cellular structure filled with PCM for passive thermal management of PV panels using apparent heat capacity formulation and homogenization based on volume averaging technique. COMSOL Multiphysics FEM software was used for the numerical simulation of the phase change problem by using a Smoothed Heaviside step function to overcome the singularity of PCM challenge that arises with sharp melting temperatures. To validate the proposed model, it has been compared with a benchmark analytical solution for an ice melting problem, i.e., the Stefan problem, in a semi-finite slab, i.e., Neumann's solution under the same assumptions and boundary conditions. The specific characteristics of phase change and evolution of melting front with time, heat capacity change with the temperature at different times, and with locations along the slab height are presented. As the phase change is modeled to take place over a mushy region, i.e., a narrow temperature interval rather than a sharp melting point, the results show a good coincidence of the heat capacity profile and its peak at different times and locations. The validated model can be used for the optimization of PCM-MA for any specific geographical location and other applications such as the passive cooling of buildings with PCM integrated with the outer envelope. To this end, the results of the simulation in this work are shown to be in agreement with those obtained from the analytical solution.
英文关键词	solar power solar PV efficiency passive cooling PCM thermal management thermal energy storage
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000901221500001
WOS关键词	PHOTOVOLTAIC PANEL ; PERFORMANCE
WOS类目	Energy & Fuels
WOS研究方向	Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392412
推荐引用方式 GB/T 7714	Hassabou, Abdelhakim,Isaifan, Rima J.. Simulation of Phase Change Material Absorbers for Passive Cooling of Solar Systems[J],2022,15(24).
APA	Hassabou, Abdelhakim,&Isaifan, Rima J..(2022).Simulation of Phase Change Material Absorbers for Passive Cooling of Solar Systems.ENERGIES,15(24).
MLA	Hassabou, Abdelhakim,et al."Simulation of Phase Change Material Absorbers for Passive Cooling of Solar Systems".ENERGIES 15.24(2022).