复合干燥剂转轮性能测试及其应用

测试了新型复合干燥剂和硅胶的平衡吸附性能.实验结果显示与常用硅胶干燥剂相比,前者的吸湿能力约是后者的2倍以上.为了进一步验证新型复合干燥剂优良的吸湿性能,设计了一台除湿机,测试了转速、再生温度对转轮除湿性能的影响,并且分析了在典型气候条件下,该除湿机在除湿冷却空调中的应用情况.结果表明,采用新型复合干燥剂的除湿冷却空调不仅出口空气的温湿度能够达到送风要求,而且系统性能系数(COP)能达到1.28,比采用硅胶干燥剂的系统COP提高了34.7%.

Experimental Study on Composite Desiccant Wheel and Its Application in a Desiccant Cooling System

A new composite desiccant used in the manufacture of dehumidifier was tested.The equilibrium adsorption test results show that the hygroscopic capacity of new composite desiccant is two times bigger than that of silica gel.In order to further evaluate the performance of composite desiccant,a dehumidifier was developed.The impacts of rotation speed and regeneration temperature on dehumidification performance were tested.And then the application of the dehumidifier in a desiccant cooling system was analyzed under typical climates.It is found that the temperature and relative humidity of outlet air,which is processed by the composite desiccant cooling system,meet the requirement of supplying air.The performance index COP of the composite desiccant cooling system is 34.7% higher than that of silica gel desiccant cooling system.