Abstract
The Maisotsenko cycle-based coolers have gained increasing attention in recent years due to their advantages of low energy consumption and environmental friendliness. The optimization of model structure and operating conditions is the primary approach for enhancing the cooling performance of dew-point evaporation systems. In this paper, a new mathematical model of the perforated dew-point evaporative cooler was developed to study the cooling performance. The key findings that emerged from this investigation were: (1) The impact of model size and inlet air parameters on the performance of both perforated and non-perforated dew-point evaporative cooling systems exhibited similar trends. (2) The performance of the dew-point evaporative cooler could be enhanced by employing the perforation method when the total air supply ratio was below 0.5, and optimal performance was achieved with a single-perforation design. (3) When the supply air ratio was 0.3, the outlet air temperature of the dry channel initially decreased and subsequently exhibited a gradual increase with an elevated supply air ratio at the outlet of the dry channel. Notably, when the supply air ratio ranged from 0.5 to 0.6 at the outlet of the dry channel, it resulted in the lowest recorded air temperature.