The electrocaloric effect in thin films of an electrocaloric material has the potential to be used for\nefficient cooling systems for high power electronic devices. We numerically calculated the effect of\nparameters in electrocaloric refrigeration with a thermal switch of fluid motion on the thermal\nperformance. The system of changing air and water flow with the pulse generation of cold energy\nincreased the heat transfer efficiency to 67% at a frequency of 5 Hz. The optimum time delay of\nwater flow to increase the heat transfer efficiency was zero at low frequency and became half of\nthe time period to change heat for a high frequency of 100 Hz. When the heat transfer efficiency\nwas high, the final temperature change in water flow was not the maximum temperature change.
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