太阳能固体吸附式转轮制冷机性能分析

针对活性炭纤维-乙醇太阳能固体吸附式转轮制冷系统,采用沿吸附床周向的一维均匀压力场数学模型,对转轮吸附床温度场进行了静态模拟计算;从吸附床的内、外部特性参数出发,全面而系统地分析了这些参数的改变对系统性能、平衡脱附率以及吸附量的影响。结果表明,在转轮吸附床的内部参数中,转轮吸附床的转速、吸附剂的填充密度对系统的性能有着较大的影响;在其外部参数中,冷却气体入口流速、蒸发温度等因素对系统影响比较大。

Performance Analysis of Solar Energy Solid Adsorption Rotary Refrigerator

For the solar energy solid adsorption rotary refrigeration system using activated carbon fiber-ethanol as its pair,one-dimensional uniform pressure field mathematical model along the circumference of adsorbent bed was adopted to carry out a static simulation calculation of the temperature field of the adsorption wheel bed.By considering the internal and external characteristic parameters of the adsorption bed,the influence from these parameters change being on system performance and the equilibrium desorption ratio and adsorbent mass effect was analyzed systemically and completely.The results show that among these internal parameters of the rotary wheel adsorption bed,the rotary speed and the density of the adsorbent stuffed have greater effect on the system performance;among the external parameters,the cooling gas velocity from the inlet and the evaporation temperature have much greater effect on the system.