摘要
基于MATLAB软件与理论,建立了二维水滴运动方程耦合传热传质方程的数学模型,采用数值计算的方法,对数学模型进行求解,分析不同因素以及湿空气饱和程度对立式、高速喷水室传热传质性能的影响。结果表明,合理地增加塔高、水气比以及减小水滴直径、水滴速度有利于提高立式高速喷水室传热传质的效果;提高湿空气的相对湿度有利于热湿交换效果。同时,为设计立式高速喷水室的结构以及优化热湿交换过程提供理论依据。
Based on MATLAB software and theory,the mathematical model of two-dimensional water droplet motion equation coupled with heat and mass transfer equation was established,and numerical calculation method was used to solve the equation.The effects of different factors and the degree of humid air saturation on the heat and mass transfer performance of the vertical high-speed spray chamber were analyzed.The results show that it is beneficial to improve the heat and mass transfer effect of vertical high-speed spraying chamber by reasonablely increasing the height of the chamber,water-gas ratio,air velocity,and reasonable reduction of diameter of water-drop,water-drop velocity,and that it is beneficial to improve the heat and moisture exchange effect by increasing the relative humidity of the humid air properly.At the same time,it also provides a theoretical basis for the rational design of the structure of the vertical high-speed water spraying chamber and the optimization of the heat and moisture exchange process.
作者
陈凯
苏秀
鲍玲玲
CHEN Kai;SU Xiu;BAO Lingling(School of Energy and Environmental Engineering,Hebei University of Engineering,Handan 056038,Hebei,China)
出处
《西安工程大学学报》
CAS
2019年第4期388-394,共7页
Journal of Xi’an Polytechnic University
基金
国家自然科学基金(51408182)
河北省教育厅科学研究计划项目(ZD2018088)
关键词
火积
传热传质
换热量
立式喷水室
热湿交换效果
entransy
heat and mass transfer
heat exchange quantity
vertical spraying chamber
heat and moistute exehange effect
