Understanding the transient behavior of the dew point evaporative cooler from the first and second law of thermodynamics

• Large time constant of 400 s was observed for the dew point evaporative cooler. The slow transient response led to 13.8%–26.4% degradation in average performance. An air mixing process identified via a modified model with exergy analysis. destruction at dry channel entrance critical due mixing. sensitivities and steady-state performance were examined. Owing its high energy efficiency without using greenhouse gases, cooling offers desired solution thermal management electronic electrical devices. This paper elucidates behavior cooler significant influence on dynamic A large (400 s) product temperature under zero-state response, leading pronounced deviation time-average below steady state by over long period (2500 s). To capture this phenomenon, lumped parameter new partial differential developed. account cooler’s responses. detailed analysis revealed that specific above W/kg, owing finding demonstrates should be judiciously considered design optimization, together Accordingly, sensitivity objective variables is proposed gain insights into future improvement