Preliminary investigation of performance and temperature distribution of thermoelectric cooler box with and without internal fan

Midiani, Luh Putu Ike and Subagia, I Wayan Adi and Suastawa, I Wayan and Sapteka, Anak Agung Ngurah Gde and Winarta, Adi (2020) Preliminary investigation of performance and temperature distribution of thermoelectric cooler box with and without internal fan. In: International Conference on Applied Science and Technology on Engineering Science - iCAST-ES, 24-25 Oktober 2019, Nusa Dua, Bali.

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Abstract

Thermoelectric refrigeration system is considered environmentally friendly because it does not use refrigerants which have huge potential damaging the ozone layer. In this experimental work, u-shape heat pipe with heat sink was charged with methanol working fluid with different filling ratios to observe its effect on the thermoelectric performance. The cooler box has 240 mm x 180 mm x 130 mm of inner dimension. 37.3 watt DC power supply supplied constantly to the thermoelectric module to performed cooling action. The result shows that methanol with 45% and 55% filling ratios has the maximum COP about 0.03881 and 0.03885 respectively. This filling ratio also provides for a lower cabin temperature and temperature difference between the cold and hot thermoelectric sides.

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