叉排管束与M-W引流丝网交替吸收器性能研究
发布时间：2018-08-01 14:09
【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%。
[Abstract]:The alternative absorber of cross row tube bundle and M-W draining wire mesh is a new absorber developed by combining heat and mass coupling transfer with adiabatic mass transfer. Based on the VOF method, a CFD model for the solution falling film absorption of water vapor in lithium bromide absorber is established in this paper. The flow state of the solution and the temperature and concentration distribution on the optical tube bundle absorber with the contrast scheme are shown in the alternate absorber of the cross row tube bundle and M-W draining wire mesh. The simulation and experimental results of the effects of different solution inlet spray density and solution concentration on the heat and mass transfer properties of the two absorbers are given. The average heat transfer coefficient and mass transfer coefficient of the alternative absorber with M-W draining wire were increased by 33.4% and 55.4% respectively compared with the optical tube bundle absorber.
【作者单位】： 东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室;安徽工业大学建筑工程学院;
【基金】：国家自然科学基金(51206022;51276035)
【分类号】：TB65
，
本文编号：2157825
[Abstract]:The alternative absorber of cross row tube bundle and M-W draining wire mesh is a new absorber developed by combining heat and mass coupling transfer with adiabatic mass transfer. Based on the VOF method, a CFD model for the solution falling film absorption of water vapor in lithium bromide absorber is established in this paper. The flow state of the solution and the temperature and concentration distribution on the optical tube bundle absorber with the contrast scheme are shown in the alternate absorber of the cross row tube bundle and M-W draining wire mesh. The simulation and experimental results of the effects of different solution inlet spray density and solution concentration on the heat and mass transfer properties of the two absorbers are given. The average heat transfer coefficient and mass transfer coefficient of the alternative absorber with M-W draining wire were increased by 33.4% and 55.4% respectively compared with the optical tube bundle absorber.
【作者单位】： 东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室;安徽工业大学建筑工程学院;
【基金】：国家自然科学基金(51206022;51276035)
【分类号】：TB65
，
本文编号：2157825
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