吸收器是吸收式空调/热泵系统的重要组成部分，吸收器中发生的过程没有得到很好的理解，吸收率方程也没有像吸收系统中存在的其他传热传质过程那样得到很好的建立（发展）。因此，对光滑水平管表面的降膜吸收进行了实验研究。获得了在流经内冷水平管的溴化锂水溶液中吸收水蒸气的实验数据。 根据这些数据，吸收传热与膜努塞尔数和膜雷诺数的函数有关。吸收率与通过吸收热进行的传热呈线性关系。实验数据还与降膜吸收过程数值模型的结果进行了比较。此外，还评估了管径和表面活性剂添加剂浓度对吸收过程的影响。关键词:吸收式空调，空调，水，溴化锂，管道，吸收，努塞尔数。 引文:ASHRAE Transactions，第96卷，pt。亚特兰大，1990年。

The processes occurring in the absorber, an essential component of absorption air-conditioning/heat-pumping systems, are not well understood, and absorption rate equations are not well founded (developed) as they are for the other heat and mass transfer processes that are present in absorption systems. As a result, a study was undertaken to experimentally investigate falling-film absorption for smooth horizontal tubular surfaces. Experimental data were obtained for absorption of water vapour into an aqueous lithium bromide (LiBr) solution flowing over internally cooled horizontal tubes. From the data, the absorption heat transfer has been correlated in terms of the film Nusselt number as a function of the film Reynolds number. Absorption rate is linearly related to heat transfer through the heat of absorption. The experimental data are also compared with the results of a numerical model for the falling-film absorption process. Additionally, the effects of tube diameter and surfactant additive concentration on the absorption process have been assessed.KEYWORDS: absorption air conditioning, air conditioning, water, lithium bromide, tubes, absorption, Nusselt number.