关键词: 转轮除湿, 硅胶, 分子筛

Abstract: Dehumidification capacity and dehumidification coefficient of performance are employed to evaluate the performances of desiccant wheels in this paper by experimental comparison of distribution of operating parameters, such as process air inlet temperature and relative humidity, process air speed, regeneration air speed, and regeneration air inlet temperature. The results showed that at high inlet temperature of process air, dehumidification performance of PPS/PPM 50% wheel was the best compared with PPS silica gel wheel and PPM molecular sieve wheel;PPS silica gel wheel was more suitable for environmental conditions of relatively high humidity;the increase of process air flow rate was helpful to improve the performance of PPM molecular sieve wheel;when regeneration temperature increased from 60℃ to 80℃, dehumidification coefficient of performance and dehumidification capacity of three desiccant wheels almost doubled.

Key words: rotary desiccant wheel, silica gel, molecular sieve