采用吸湿剂的空气湿度处理过程性能分析

发布时间：2018-09-10 11:03

【摘要】：空气湿度处理是空调系统的基本组成环节,溶液式、转轮式空气处理装置是常见的采用液体或固体吸湿剂对空气进行湿度处理的设备。从采用吸湿剂的基本空气处理过程出发,分析了溶液式与固体转轮式空气湿度处理方式之间的相似性。针对传热、传质过程驱动力的沿程分布特性进行研究,采用不均匀性系数ξ描述空气与吸湿剂之间传递过程驱动力的均匀性,刻画了固体转轮与溶液除湿方式之间的差异性。分析表明:转轮方式沿程参数较为均匀;溶液除湿方式受空气与溶液进口相对位置的影响显著,只有当二者进口状态沿等相对湿度线时,驱动力分布均匀,不均匀性系数ξ接近1。对不同空气处理流程的分析表明,驱动力特性分析能够为实际流程构建提供有效指导。
[Abstract]:Air humidity treatment is the basic component of air conditioning system. The air treatment device of solution type and runner type is a common equipment which uses liquid or solid moisture absorbent to deal with air humidity. Based on the basic air treatment process with moisture absorbent, the similarity of air humidity treatment between solution type and solid runner type is analyzed. The distribution characteristics of driving force in heat and mass transfer process are studied. The uniformity of driving force in the transfer process between air and moisture absorbent is described by using the inhomogeneity coefficient 尉, and the difference between solid runner and solution desiccant is described. The analysis shows that the parameters along the runner are more uniform, the desiccant mode of solution is influenced by the relative position of the air and the inlet of the solution, and the driving force distribution is uniform only when the inlet states of the two are along the line of equal relative humidity. The inhomogeneity coefficient 尉 is close to 1. The analysis of different air treatment processes shows that the analysis of driving force characteristics can provide effective guidance for the actual process construction.
【作者单位】：清华大学建筑技术科学系;
【基金】：国家自然科学基金项目(51138005) 清华大学自主科研计划~~
【分类号】：TU831

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