Unjuk Kerja Termal Kolektor Surya PV/T Bersirip Menggunakan Metode Computing Fluid Dynamic

Amrizal Nalis, Muhammad Irsyad, A. Yonanda, Rizal Khairudin
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Abstract

Photovoltaic Thermal (PV/T) collector is a device that can produce electrical energy and thermal energy simultaneously. However, the thermal energy increases the surface temperature of the PV and therefore it may reduce electrical efficiency. To overcome this problem, a finned thermal collector should be joined underneath the PV surface. The aim of this study is to simulate the thermal performance of a PV/T collector by using staggered fins with air as a working fluid. The parameters are varied from 25 to 50 mm in the fin geometry and from 12 to 48 g/s in air mass flow rate, respectively. Furthermore, the heat radiation used was 860 W⁄m2 and Computing Fluid Dynamic (CFD) method was implemented in this research. The results showed that the PV/T surface temperature decreased by 7.04 % for the fin height of 37.5 mm and 11.9 % for the fin height of 50 mm when compared to the fin height of 25 mm. Thus, a greater cooling of the PV/T surface occurs in the fin height of 50 mm due to an increase in the heat transfer area which might absorb more of the unused thermal energy in comparison with others.
使用动态流体计算方法展示漂浮的PV/T太阳能热板
光伏热(PV/T)集热器是一种能同时产生电能和热能的装置。然而,热能增加了PV的表面温度,因此它可能会降低电效率。为了克服这个问题,应该在PV表面下方连接一个翅片式热收集器。本研究的目的是通过使用交错翅片和空气作为工作流体来模拟PV/T集热器的热性能。这些参数在翅片几何形状和空气质量流量的变化范围分别为25 ~ 50 mm和12 ~ 48 g/s。利用860 W / m2的热辐射,采用计算流体力学(CFD)方法进行研究。结果表明:当翅片高度为37.5 mm时,PV/T表面温度比25 mm时分别降低了7.04%和11.9%;因此,由于传热面积的增加,PV/T表面在50 mm的翅片高度处发生了更大的冷却,这可能比其他翅片吸收更多未使用的热能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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