To address the demands for high-efficiency heat transfer and compact lightweight design in space stations

a high-efficiency condensation dehumidification system utilizing copper foam and driven by a Stirling refrigerator was developed. An experimental study was conducted to investigate its heat and mass transfer characteristics under various conditions. The experimental parameters were set as follows: air inlet temperature ranging from 20 to 30 °C

relative humidity between 50 % and 80 %

cold plate temperature from 8 to 13 °C

and inlet wind speed from 0.4 to 1.4 m/s. The results indicate a positive correlation between the increase in air inlet temperature and the enhancement of both heat transfer coefficient and mass transfer coefficient. Specifically

when the air inlet temperature increased from 20 °C to 30 °C

the heat transfer coefficient rose by 10.5 %

while the mass transfer coefficient exhibited a more substantial increase of 57.1 %. Furthermore

variations in the relative humidity of the air inlet had distinct impacts on the heat and mass transfer coefficients: the heat transfer coefficient decreased with increasing relative humidity

whereas the mass transfer coefficient increased. Notably

although lowering the cold plate temperature can significantly improve heat transfer

it concurrently diminishes the efficiency of heat and mass transfer. Therefore

selecting an appropriate cold plate temperature is crucial. Additionally

the efficiency of heat and mass transfer was markedly enhanced with increasing inlet wind speed; however

a continuous increase in wind speed resulted in higher system energy consumption. Thus

a balance between achieving efficient heat transfer and managing system energy consumption is essential. Based on extensive experimental data

the heat transfer model was refined through regression analysis. The relative average deviation between theoretical and experimental values was found to be 8.97 %

with a relative standard deviation of 8.21 %

demonstrating the model's strong predictive accuracy.