An Experimental Study of Fine Water Droplet Resistant Louver

• Main Authors: Chun-Ku Yeh, 葉俊谷
• Other Authors: Liang-Han Chien
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/kh8q39

碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 104 === This study investigates the water droplet resistant louver of fine water droplet resistance of the performance and flow field structure in a variety of outside air wind speed. And the entity louver with water absorbing film attached on louver hooks to increase water droplet resistant effectiveness. Computational fluid dynamics software (ANSYS FLUENT) was used to simulate single flow channel flow field characteristics of fine water droplet resistant louver. Establish a simulation model of water droplet resistance louver to simulate different fine water at different air wind speed. The discrete phase model (DPM) was used in the simulation of water droplet of flow trajectories and water droplet resistance rate. This study accordance with water droplet resistant louvers simulation model, setting 100μm ~ 1000μm water droplet size of the result at the air wind speed from 2 ~ 5 m/s. Water droplet size of 1000μm, 500μm having close to the experimental value of water droplet resistance rate is 100%; Water droplet size of 200μm, simulation water droplet resistance rate is 81.03% ~ 93.08%, and experimental water droplet resistance rate is 83.47% ~ 86.81%, simulation values and experimental values is approaching. The water droplet resistant louver in the literature, the large water droplet size (1000μm, 500μm) have high water droplet resistance rate, the small water droplet size (200μm) decreased a lot. Therefore, this study will attached water absorbing film material on water droplet resistant Louver Hooks, in order to enhance the water droplet resistance rate. According to the experimental results of the effect of this design is still valid.