Abstract Thermoelectric coolers have been abundantly investigated from the viewpoint of the first law of thermodynamic. However, extremely few exergy analysis have been probed for thermoelectric air-coolers. Because of the importance of exergy consideration in each thermodynamic process, this paper experimentally focuses on the effect of various parameters on exergy destruction and the second law performance through a thermoelectric air cooler. The effects of flow and thermodynamic parameters including air flow rate, incoming air temperature, water flow rate, incoming water temperature, DC voltage/ampere etc. on exergetic characteristics are clarified in this study. Interesting meaningful curve behavior was observed for exergetic performance of thermoelectric cooler. Indeed, curve behavior of exergetic performance is descending-ascending and therefore a critical value of DC voltage was found in which the amount of second law performance has a minimum/maximum value. Increment of air flow rate improved the exergetic performance of Peltier-air cooler. Besides, higher air inlet temperature reduced exergy destruction of thermoelectric module (TEM) which means that Peltier air cooler is appropriate for regions with warmer weather in comparison with moderate climates.

中文翻译：

---

珀尔帖空气冷却器原型的综合火用分析；实验调查

摘要 从热力学第一定律的观点出发，对热电冷却器进行了大量研究。然而，针对热电空气冷却器进行的火用分析极少。由于每个热力学过程中火用考虑的重要性，本文通过热电空气冷却器通过实验重点研究了各种参数对火用破坏和第二定律性能的影响。本研究阐明了流量和热力学参数，包括空气流量、进风温度、水流量、进水温度、直流电压/安培等对火用特性的影响。对于热电冷却器的热性能，观察到有趣的有意义的曲线行为。确实，火用性能的曲线行为是下降-上升，因此发现了直流电压的临界值，其中第二定律性能的量具有最小值/最大值。空气流量的增加提高了珀耳帖空气冷却器的散热性能。此外，较高的空气入口温度减少了热电模块 (TEM) 的火用破坏，这意味着与温和气候相比，珀耳帖空气冷却器适用于天气较暖的地区。