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首页> 外文期刊>International Journal of Heat and Mass Transfer >Model development for the wetted area of falling film liquid desiccant air-conditioning system
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Model development for the wetted area of falling film liquid desiccant air-conditioning system

机译：降膜式液体干燥剂空调系统湿区的模型开发

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摘要

The film wetted area is a significant parameter affecting the heat and mass transfer of falling film liquid desiccant air-conditioning system. In this paper, a theoretical model with the analytical solution was developed for calculating the wetted area accurately, by solving the desiccant interface concentration and temperature gradients. Comparing with the experimental data on a single channel internally heated regenerator, the results with the new model showed better agreement than those of the previous model. The average error reduced significantly from 16.4% to 4.8% for the experiments with different solution temperatures, and decreased from 10.8% to 7.0% for those with different plate surface temperatures. With this new model, decreasing the film thickness and contact angle could significantly increase the film area, and the area also increased with the air and extra fluid temperature. This research is useful to help to predict the wetted area accurately and to increase the area for improving system efficiency of liquid desiccant air-conditioning system and other falling film applications.
机译：膜的润湿面积是影响降膜液体干燥剂空调系统传热和传质的重要参数。本文通过求解干燥剂界面浓度和温度梯度，建立了具有解析解的理论模型，用于精确计算湿润面积。与单通道内部加热再生器上的实验数据进行比较，新模型的结果显示出比以前模型更好的一致性。对于不同溶液温度的实验，平均误差从16.4％显着降低到4.8％，对于不同板表面温度的实验，平均误差从10.8％降低到7.0％。使用此新模型，减小膜厚度和接触角会显着增加膜面积，并且该面积还会随空气和额外的流体温度而增加。这项研究有助于准确地预测湿润面积，并增加面积以提高液体干燥剂空调系统和其他降膜应用的系统效率。

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  • 作者

    Qi Ronghui; Lu Lin; Qin Fei;

  • 作者单位

    Renewable Energy Research Group (RERG), Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong;

    Renewable Energy Research Group (RERG), Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong;

    Renewable Energy Research Group (RERG), Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong,Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China,Graduate University of Chinese Academy of Sciences, Beijing 100190, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Liquid desiccant air-conditioning system; Falling film; Wetted area; Theoretical model; Experiment; Dehumidification;

    机译：液体干燥剂空调系统;落膜;潮湿区域;理论模型;实验;除湿;

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