ABSTRACT

In this paper, a photovoltaic-thermoelectric with serpentine water collector (PV-TE-SWC) is proposed where a serpentine tube and sheet water collector is placed at the rear surface of the combined photovoltaic-thermoelectric system to improve the electrical, thermal, and exergy performance of the hybrid system. The performance of the proposed PV-TE-SW collector is analyzed and compared with the results of a recent state-of-art study on photovoltaic-thermoelectric (PV-TE) air collector. The overall electrical gain and electrical efficiency of the proposed collector are observed 5.2% and 6.2%–7.05% higher than the state-of-art PV-TE air collector. The exergy of thermal energy for the proposed collector is 75.6% higher than the PV-TE air collector due to the serpentine water collector, which is capable to absorb more heat and shows better thermal performance compared to the air channel. Hence, the overall exergy gain of the PV-TE-SW collector is 32.2% higher than that of the PV-TE air collector. The impact of different design parameters over exergy gain has also been examined. The performance of the PV-TE-SW collector is influenced to a great extent by the collector dimensions, mass flow rate, and inlet temperature of the fluid.

摘要

在本文中，提出了一种带有蛇形集水器的光伏-热电 (PV-TE-SWC)，其中蛇形管和片状集水器放置在光伏-热电组合系统的后表面，以改善电、热和混合系统的火用性能。对所提出的 PV-TE-SW 集热器的性能进行了分析，并与最近对光伏-热电 (PV-TE) 空气集热器的最新研究结果进行了比较。所提出的集热器的整体电增益和电效率比最先进的 PV-TE 空气集热器高 5.2% 和 6.2%–7.05%。由于蛇形集水器，拟议集热器的热能比 PV-TE 空气集热器高 75.6%，与空气通道相比，它能够吸收更多的热量并显示出更好的热性能。因此，PV-TE-SW 集热器的整体火用增益比 PV-TE 空气集热器高 32.2%。还研究了不同设计参数对火用增益的影响。PV-TE-SW 集热器的性能在很大程度上受集热器尺寸、质量流量和流体入口温度的影响。