摘要
针对建筑环境内小空间微环境的特殊除湿需求,提出一种内热再生式除湿器,建立了其吸附再生过程的数学模型,并开发了基于有限差分方法的数值求解程序对其进行求解。根据求解结果给出了除湿器尺寸的推荐值,得到了除湿器在基本工作过程中的动态特性,并分析了几种常见因素对除湿器性能的影响。结果表明,处理气流量较小时,该除湿器在连续运行且不采用内冷措施的情况下仍能对高湿气体长时间保持较高的除湿效率,再生过程所需时间远小于有效除湿时间。
An internally-heating regenerated dehumidifier which can meet microevironment in indoor environment’s special dehumidification requirements is proposed, and a complete mathematical model for its adsorption-regeneration process is established. In order to solve the model, a numerical procedure which is based on finite difference method is developed. By analyzing the solution, the author gives out a recom-mended size value and describes the dehumidifier’s dynamic behavior performed in the basic operation process; in addition, several common factors’ influence on the dehumidifier’s performance is discussed. Simulation result shows that the dehumidifier can remain high dehumidification efficiency without internal-ly-cooling device under small flux in a long time, the time consumed in regeneration and cooling process is much less than the time consumed in dehumidification process.
出处
《建筑节能》
CAS
2015年第1期39-43,共5页
BUILDING ENERGY EFFICIENCY
关键词
微环境
除湿
吸附
再生
数值模拟
microenvironment
dehumidification
adsorption
regeneration
numerical simulation
