This paper presents an experimental investigation of a photovoltaic-thermal solar collector (commonly known as PVT) that generates both electricity and heat from the same gross area. PVT solar collectors, in theory, achieve higher combined electrical and heat yields. Additionally, PVT enables a thermal coupling between PV cells and a heat transfer cooling medium. Electrical and thermal outdoor testing measurements have been performed on a low concentration PVT solar collector based on a parabolic reflector geometry with a wedge PVT receiver. Several outdoor experiments have been carried out and presented, such as daily instantaneous electrical and thermal performance efficiency diagrams, as well as optical efficiency charts. Moreover, an electrical Incidence Angle Modifier (for both transversal and longitudinal directions) assessment has been performed and presented. Furthermore, an overall heat loss coefficient of 4.1 W/m².°C has been attained. A measured thermal optical and electrical efficiency of 59% and 8% have been achieved, respectively. Additionally, the placement of the wedge receiver shown to be very sensitive to high incidence angles, as the electrical transversal Incidence Angle Modifier factor decreases significantly after reaching its electrical peak efficiency at 10°.

本文介绍了对光伏热太阳能集热器（俗称PVT）的实验研究，该太阳能集热器从相同的总面积产生电能和热量。从理论上讲，PVT太阳能集热器可实现更高的电和热综合产量。另外，PVT可以实现PV电池与传热冷却介质之间的热耦合。在基于楔形PVT接收器的抛物面反射器几何形状的低浓度PVT太阳能集热器上进行了电气和热室外测试测量。已经进行并展示了一些户外实验，例如每日瞬时电和热性能效率图以及光效率图。此外，进行了一次电气入射角修正器（横向和纵向）评估。此外，总热损失系数为4.1 W / m已达到² °C。测得的热光学和电效率分别达到59％和8％。此外，楔形接收器的放置对高入射角非常敏感，因为在达到10°的电峰值效率后，电横向入射角修正因子会显着降低。