بهبود بازده خنك‌كاري ترموالكتريك با استفاده از ماژول‌هاي پلتير، به كمك مدار خنك‌كاري آب و جريان هواي مكمل

This study investigates a method to improve the efficiency of a thermoelectric cooling system operating with a Peltier unit. The system typically relies on air cooling to remove heat from the hot side of the unit; however, heat accumulates rapidly, reducing the cooling effect on the cold surface. To address this issue, a clean water-cooling loop is added to support heat removal from the hot surface an‎d help maintain stable fin temperatures. Both systems can be activated simultaneously, creating a combined water an‎d air operation. The water loop transfers heat from the heat exchanger to a small radiator located in an open, air-permeable area. The air reaching the radiator typically comes from a room vent an‎d is already cooled by the air conditioning system, thus helping to lower the radiatorʹs temperature. Outside air can also be used when needed. After cooling, the water returns to the heat exchanger via a pump that maintains circulation within a closed loop. Through experiments, the device showed a difference in results, as the Peltier units are inefficient. The deviceʹs results changed when water was used as a coolant for the hot side, an‎d the results were better when the dual was running, as the temperature difference between the ambient an‎d the Peltier units was (T=4.5℃), while the temperature difference between the heat exchanger an‎d the room space was (ΔT=4.1℃). The external sludge was (39%) after running the device, it became (22%), an‎d the air performance coefficient was COP air (2.2) after running the dual became COP (6.2) an‎d COP water (3.1) Then, when operating using the water cycle, the water temperature difference was (T=2.8℃), the difference between the temperatures was (ΔT=7.9℃), an‎d the humidity (39%) became (18%). with four temperature sensors in the device.

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محمدرضا سليم پور , مجيد رضائي