The solar-powered thermoelectric refrigerator (SPTR) is an innovative approach that uses solar energy to cool spaces. Its effectiveness relies on solar insolation rates and an intelligent dual-axis solar tracking system (STS) that maximizes solar energy capture. Performance analysis of SPTR with the fixed panel solar system (WST) and dual-axis STS by keeping the SPTR at a standard ambient temperature of 25 °C was carried out under local climate conditions. The experimental test setup includes a thermoelectric refrigerator (TER), thermoelectric module (TEM), solar panels, and STS. The experimental findings showed that the coefficient of performance (COP) of SPTR depends on the solar irradiance, the system's input power, the surface temperature of the solar panels, and the cooling rate. The maximum and minimum values of COPs were 1.19 and 0.27 for directly coupled SPTR with a WST and 2.07 and 0.39 for STS, respectively. Compared with the stand-still solar system, a COP enhancement of 44–75 % is achieved. The results also show that the cooling load is a function of the refrigerated space, and the products are to be cooled, which is affected by the thermoelectric properties of the TEM. The cooling rate is recorded at its maximum when the system is operated using an STS on a clear sunny day with a maximum solar insolation rate. The SPTR has proven to be environmentally friendly, the best alternative to conventional cooling systems, and sustainable due to the independence of traditional energy resources.

中文翻译：

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推进可持续冷却：太阳能驱动热电制冷系统的性能分析，提供环保解决方案


太阳能热电冰箱（SPTR）是一种利用太阳能来冷却空间的创新方法。其有效性取决于日照率和智能双轴太阳跟踪系统 (STS)，可最大限度地捕获太阳能。在当地气候条件下，通过将 SPTR 保持在 25 °C 标准环境温度，对采用固定面板太阳能系统 (WST) 和双轴 STS 的 SPTR 进行性能分析。实验测试装置包括热电制冷机 (TER)、热电模块 (TEM)、太阳能电池板和 STS。实验结果表明，SPTR的性能系数（COP）取决于太阳辐照度、系统的输入功率、太阳能电池板的表面温度和冷却速率。对于与 WST 直接耦合的 SPTR，COP 的最大值和最小值分别为 1.19 和 0.27；对于 STS，COP 的最大值和最小值分别为 2.07 和 0.39。与静止太阳能系统相比，COP 提高了 44-75%。结果还表明，冷却负荷是制冷空间的函数，而要冷却的产品则受到 TEM 热电特性的影响。当系统在晴朗的阳光照射率最大的情况下使用 STS 运行时，记录的冷却率达到最大值。 SPTR 已被证明是环保的，是传统冷却系统的最佳替代品，并且由于独立于传统能源而具有可持续性。