Abstract Aiming to make full use of the heat on PV, a novel solar assisted heat pump with hybrid Fresnel PV plus TEG evaporator (FPV/TEG/SAHP) is proposed and the performance is predicted in this paper. As we all know, most irradiation is transformed to heat as the solar irradiation is absorbed by the PV, resulting in high temperature, while the evaporator of the heat pump could provide a lower temperature. Particularly, TEG could complete the conversion from heat to electrical energy under high temperature difference. In this case, we proposed a novel hybrid system, predicted the performance and discussed the influence of solar irradiation, ambient temperature and condensing water temperature. Results show that by adding TEG between PV and evaporator, the heat on PV can be transformed to electrical energy as a second electrical generation, which can complete a maximum lift of 43.77 W electrical energy and increase the electrical efficiency by 1.40% under 800 W/m2 and the COPPVT of the hybrid system can reach 7.89. Besides, for the FPV/TEG evaporator the thermal efficiency, photovoltaic efficiency and the photovoltaic/thermal efficiency could achieve 142.96%, 28.11% and 216.41% respectively under 300 W/m2 irradiation, which all decrease with the increase of the solar irradiation. Additionally, the exergy efficiency of the hybrid system has optimal irradiation varying with ambient temperature or water temperature.

中文翻译：

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具有混合菲涅耳光伏加 TEG 蒸发器的新型太阳能辅助热泵的性能预测

摘要 为了充分利用光伏的热量，本文提出了一种新型菲涅耳光伏+TEG蒸发器（FPV/TEG/SAHP）混合太阳能辅助热泵，并对其性能进行了预测。众所周知，太阳辐射被光伏吸收后，大部分辐射会转化为热量，从而产生高温，而热泵的蒸发器可以提供较低的温度。特别是TEG可以在高温差下完成热能到电能的转换。在这种情况下，我们提出了一种新型混合系统，预测了性能并讨论了太阳辐射、环境温度和冷凝水温度的影响。结果表明，通过在光伏和蒸发器之间加入TEG，光伏上的热量可以转化为电能作为二次发电，可完成43.77W电能的最大升力，800W/m2下电效率提高1.40%，混合动力系统COPPVT可达7.89。此外，FPV/TEG蒸发器在300 W/m2辐照下的热效率、光伏效率和光伏/热效率分别达到142.96%、28.11%和216.41%，均随着太阳辐照量的增加而降低。此外，混合系统的火用效率具有随环境温度或水温变化的最佳辐照。在300 W/m2辐照下，光伏效率和光伏/热效率分别达到142.96%、28.11%和216.41%，均随着太阳辐照量的增加而降低。此外，混合系统的火用效率具有随环境温度或水温变化的最佳辐照。在300 W/m2辐照下，光伏效率和光伏/热效率分别达到142.96%、28.11%和216.41%，均随着太阳辐照量的增加而降低。此外，混合系统的火用效率具有随环境温度或水温变化的最佳辐照。