Advanced parabolic trough systems are the promising technologies for the production of usable heat and electrical power. Here we study the effects of hot water temperature adjustment concept and optical concentrator on the thermal and electrical efficiencies of a new PTC/HTTEG configuration, which comprises parabolic trough concentrator and hybrid tubular thermoelectric generator. The hybrid tubular thermoelectric generator (HTTEG) was integrated within the collector tube, where the hot water is passed between the inner side of the absorber tube and the top surface of the HTTEG. Meanwhile, to create a large temperature difference across the HTTEG sides, a cold water is passed along the inner side of the HTTEG. A low consumption pump was energized using HTTEG power in order to keep the hot water temperature at 95°C for a long time (temperature adjustment concept). Numerical simulations show that the improvement in performance of the hybrid system highly depends on the adjustment concept and optical concentrator. As the solar concentration ratio increases, the overall efficiency of the hybrid system increases significantly to 76.21% and the amount of hot water reaches to a maximum value of about 846.77 Liter/Day for a concentration of 30 suns. Also, the power generated by the HTTEG and hot water temperature stay stable at 71.37 W and 95°C, respectively, due to the hot water temperature adjustment effect. To validate the results of numerical model, a new validation method was proposed and discussed. The comparison of results obtained with results of the exact solution indicates a good agreement.

先进的抛物线槽系统是产生可用热量和电能的有前途的技术。在这里，我们研究了热水温度调节概念和光学集中器对新型PTC / HTTEG配置（包括抛物槽式集中器和混合管状热电发电机）的热和电效率的影响。混合管状热电发电机（HTTEG）集成在集热管内，热水在吸收管的内侧和HTTEG的上表面之间通过。同时，为了在HTTEG的两侧产生较大的温差，使冷水沿HTTEG的内侧通过。使用HTTEG功率为低能耗泵通电，以使热水温度长时间保持在95°C（温度调节概念）。数值模拟表明，混合动力系统性能的提高在很大程度上取决于调节概念和光学集中器。随着太阳集中度比率的增加，混合动力系统的整体效率将显着提高到76.21％，并且在30个太阳集中的情况下，热水量将达到约846.77升/天的最大值。此外，由于热水温度调节效果，HTTEG产生的功率和热水温度分别稳定在71.37 W和95°C。为了验证数值模型的结果，提出并讨论了一种新的验证方法。