Abstract
A transient model of the thermoelectric refrigerator working in a cooling space with an internal heat source is established. The influence of key parameters on the transient performance of the thermoelectric refrigerator under different working conditions is analyzed. The changes of the minimum cooling temperature and the cooling coefficient is analyzed, which were compared with different internal heat source power, input current and filling factor. The results show that the power of internal heat source has a significant impact on the cooling temperature and the time required for temperature stabilization. There are optimal working current and optimal filling coefficient which can make the cooling rate reach the maximum and the cooling space temperature reach the minimum respectively. The optimal filling factor increases with the power of the internal heat source.
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