一种新型溶液再生装置理论性能研究——太阳能空气预处理溶液集热/再生装置

THE STUDY ON THEORETICAL PERFORMANCE OF A SORT OF NEW TYPE LIQUID REGENERATION EQUIPMENT

提出一种适合我国南方夏季高湿天气的新型溶液再生装置——太阳能空气预处理集热／再生装置，它能使溶液除湿冷却空凋系统的溶液在较低温度下实现再生。理论研究发现新型溶液再生器内空气和盐分存在一个匹配流量比ASMR^＊及与之相对应的最大理论蓄能密度SCmax。理论计算发现在Tz=60℃、Cdil.sol=0．3条件下，当Yin由29g／kg下降到14g／kg时，匹配流量比ASMR^＊值稳定在26～27范围内，而最大蓄能密度阳SCmax。增大了50％。在定义有效溶液比（ESP）和有效蓄能密度（ESC）两个概念的基础上，理论计算得出当ESP由100％下降到67％时，ESC不降反升；溶液出口浓度Cstr.sol由0．4升高到0．49，相对于浓度为0．3的稀溶液浓度升幅达90％。这些都充分说明了空气预处理再生装置具有极大提高溶液除湿冷却空调系统性能的潜力。

A new liquid regeneration equipment -- solar air pretreatment collector/regenerator, which fits high humidity climate in summer in Chinese south was put forward. The equipment can achieve liquid regeneration in lower temperature for liquid desiccant cooling system. Theoretical study found that there are a match air to salt mass ratio ASMR^＊ and the largest theoretical storage capacity SCmax. At Tz = 60℃ and Xin = 2.33kg/kg, theoretical calculation discovered when Ym drops from 29g/kg to 14g/kg, the SCmax, increase 50% compared with ASMR^＊ value round 26 - 27. After defining effective solution percent （EPS） and effective storage capacity （ESC） concepts, theoretical calculation found when ESP drops from 100% to 67%, ESC raises opposite to fall; liquid outlet concentration Catr.sol increases from 0.4 to 0.49 the extent totaling to 90% opposite to the diluted solution concentration of 0.3. All these data explain fully that air pretreatment liquid regeneration equipment enable to improve the performance of liquid desiccant cooling system.