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提出热管式真空管集热器与热电片结合的新型太阳能利用装置的概念并对该装置进行数值模拟,分析不同负载和太阳辐照下,其电效率、温差、电流的变化情况,得到最大电效率下的电阻比值。通过对合肥某日实测气象数据进行的模拟结果表明,在联箱下层水温为20℃、水速1.3 m/s条件下,效率、电流和温差的最大值分别为3.62%、0.86 A、203℃。
The concept of a new type of solar energy utilization device combining heat pipe vacuum tube collector and thermoelectric sheet is proposed and its numerical simulation is carried out. The change of electrical efficiency, temperature difference and current under different loads and solar radiation are analyzed to obtain the maximum electrical efficiency Under the resistance ratio. The results of simulating the daily measured meteorological data in Hefei show that the maximum values of efficiency, current and temperature difference are 3.62%, 0.86 A and 203 ℃ respectively under the condition that the water temperature is 20 ℃ and the water velocity is 1.3 m / s .