time, decrease the cooling temperature, and increase the coefficient of performance (COP) by the response surface methodology (RSM) model.The results reveal that the obtained maximum COP was 77.3%, at 4 V and 1.006 with a difference in cooling temperature (∆T) of 8°C.The highest ∆T was 26.4°C at 10 V, 9.149 A, 91.49W and COP 11.2%.The optimum condition was cooling temperature 12.7°C, COP 51.4% at 4 V, 3.445 A by using 4 Peltier, according to Response surface methodology (RSM) includes optimization procedures for the settings of factorial variables by design expert 13, such that maximum ∆T was 20.3°C and maximum COP 49.576% with 4 volts, 4 no. of Peltier and current 3.601 A in the value range.The results reveal that the obtained determination coefficient for ∆T and the COP adjusted R2 and R3 values 0.9286 and 0.9603 respectively.
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Elnaggar et al. (2024) studied this question.