蒸发冷却天然填料性能对比实验研究OA

To compare the evaporative cooling performance of natural pad materials,experiments tested eucalyptus fiber,wool,coir fiber,wood shavings,and sisal fiber under air velocities of 1～5 m/s.Parameters evaluated included temperature drop,evaporation efficiency,cooling capacity,and coefficient of performance(COP).Results showed that eucalyptus fiber exhibited optimal performance,achieving a maximum temperature drop of 8.1 ℃,a cooling capacity of 2.19 kW,and a COP of 39.Sisal and coir fibers followed,with cooling capacities ranging from 0.22 to 1.13 kW(COP=23)and 0.038 to 0.79 kW(COP=16),respectively.Wood shavings provided a cooling capacity of 0.11～0.66 kW,while wool demonstrated the weakest performance.This study confirms the feasibility of natural materials,particularly eucalyptus fiber,for passive energy-saving cooling in hot-climate buildings.