中文摘要：

叉排管束与M-W引流丝网交替吸收器是一种将热质耦合传递与绝热传质相结合而开发的新型吸收器.该文基于VOF方法建立溴化锂吸收器中溶液降膜吸收水蒸汽过程的CFD模型,展示在叉排管束与M-W引流丝网交替吸收器中和对比方案的光管束吸收器上溶液的流动状态以及温度和浓度分布云图;给出不同溶液进口喷淋密度和溶液浓度对2种吸收器传热传质性能的影响的模拟和实验结果,表明在计算范围内,叉排管束与M-W引流丝网交替吸收器的传热系数和传质系数的平均值可比光管束吸收器分别提高33.4％和55.4％.

英文摘要：

The ahernate absorber of staggered tube bundle with M-W mesh guiders is a kind of new absorber that combines adiabatic mass transfer with coupled heat and mass transfer in absorption. Based on the VOF method, the CFD model of the solution falling film absorption of water vapor in the lithium bromide absorber was established. The flow state of the solution, the temperature and concentration distribution cloud diagrams in the absorber of staggered tube bundle with M-W mesh guiders and the bare tube absorber were demonstrated; the simulation and experiment results of the influence of the inlet density and solution concentration on the heat and mass transfer performance of the two absorbers were given. The results show that within the calculating ranges the average increases of heat transfer coefficient and mass transfer coefficient for the alternate absorber of staggered tube bundle with M-W mesh guiders are 33.4% and 55.4% higher than those of the bare tubular absorber, respectively.