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首页> 外文期刊>International Journal of Refrigeration >A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water
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A study on numerical simulations and experiments for mass transfer in bubble mode absorber of ammonia and water

机译：氨水和气泡模式吸收塔传质的数值模拟与实验研究。

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摘要

An absorber is a major component in the absorption refrigeration systems, and its performance greatly affects the overall system performance. In this study, both the numerical and experimental analyses in the absorption process of a bubble mode absorber were performed. Gas was injected into the bottom of the absorber at a constant solution flow rate. The region of gas absorption was estimated by both numerical and experimental analyses. A higher gas flow rate increases the region of gas absorption. As the temperature and concentration of the input solution decrease, the region of gas absorption decreases. In addition, the absorption performance of the countercurrent flow was superior to that of cocurrent. Mathematical modeling equations were derived from the material balance for the gas and liquid phases based on neglecting the heat and mass transfer of water from liquid to gas phase. A comparison of the model simulation and experimental results shows similar values. This means that this numerical model can be applied for design of a bubble mode absorber.
机译：吸收器是吸收式制冷系统的主要组成部分，其性能极大地影响了整个系统的性能。在这项研究中，在气泡模式吸收器的吸收过程中进行了数值和实验分析。气体以恒定的溶液流速注入吸收塔的底部。通过数值和实验分析来估计气体吸收的区域。较高的气体流速会增加气体吸收区域。随着输入溶液的温度和浓度降低，气体吸收区域减小。另外，逆流的吸收性能优于并流。在忽略水从液相到气相的传热和传质的基础上，从气相和液相的物料平衡中得出了数学建模方程。模型仿真和实验结果的比较显示了相似的值。这意味着该数值模型可以用于气泡模式吸收器的设计。

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