Abstract
A phase change heat storage device for an active thermoelectric heat pump was tested for its heat storage and release performance at different operating voltages and heat source temperatures. A study on heat release/discharge characteristics of a phase active heat exchanger is proposed. The experimental results show that there are significant differences in heating/discharging time and operating performance of the device under different operating conditions and heating conditions. When the operating voltage is high and the temperature of waste heat is high, the heating time of the device is short. Continuing to increase the voltage efficiency during this period will increase the temperature difference between the cold and hot ends of the semiconductor chip, decrease the heat coefficient of the device. Compared to passive phase change heating equipment, the best way of this equipment is to adjust the voltage. Adjusting the operating voltage in a suitable manner can maximize its heat/discharge efficiency, while overcoming the shortage of heat-supply equipment in low voltage secondary heat storage systems, and cannot improve the inequality between supply and demand in terms of time, position, and energy.
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