溴化锂水溶液降膜吸收水蒸汽的研究

本文综述了前人的研究成果,根据当前实际使用中的溴化锂吸收式制冷机降膜吸收水蒸汽的基本特性,经过适当假设与简化,建立了有关溴化锂水溶液喷淋降膜吸收水蒸汽的物理模型。通过数学求解,获得了简单的数学表达式。由此表达式算出的结果与试验的实测结果相当吻合,从而证明了本研究所提出的物理模型能够相当有效地描述溴化锂水溶液水平管外喷淋降膜吸收低压水蒸汽的传热质过程。

INVESTIGATION OF HEAT AND MASS TRANSFER IN ABSORPTION OF LOW PRESSURE WATER VAPOR BY LITHIUM BROMIDE AQUEOUS SOLUTION IN FALLING FILM FLOW

This paper summarizes the research achievements made by our predecessors.According to the characteristics in the absorption of water vapor by LiBr aqueous solution in falling film flow in Li thium Bromide Absorption Refrigerator being used today,after some hypotheses and being simplified a physical model describing this process is put up,and very simple mathematical expressions are obtained in mathematics.The results calculated from those expressions are relatitively identical with the results,which prove that the physical model put up in this investigation is quite ef- ficient in describing the course of heat and mass transfer in absorp- tion of low pressure water vapor by LiBr aqueous solution on hor- izontal test tubes in falling film flow.