Heat and mass transfer coefficients of liquid desiccant dehumidification/regeneration processes with non-thermal equilibrium(Ⅱ)Experiments and calculation result

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Heat and mass transfer coefficients of liquid desiccant dehumidification/regeneration processes with non-thermal equilibrium(Ⅱ)Experiments and calculation result

更新时间：2025-12-10

- Heat and mass transfer coefficients of liquid desiccant dehumidification/regeneration processes with non-thermal equilibrium(Ⅱ)Experiments and calculation result
- CIESC Journal Issue 9, (2011)
- 作者机构：
  
  1. 1南昌大学建筑工程学院,江西,南昌,330031
  2. 东南大学能源与环境学院,江苏,南京,210096
  3. 上海核工程研究设计院,上海,200233
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 September 2011，
  
  Published：05 September 2011
- 稿件说明：
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彭冬根1, 3. Heat and mass transfer coefficients of liquid desiccant dehumidification/regeneration processes with non-thermal equilibrium(Ⅱ)Experiments and calculation result[J]. CIESC Journal, 2011, (9).
DOI：

彭冬根1, 3. Heat and mass transfer coefficients of liquid desiccant dehumidification/regeneration processes with non-thermal equilibrium(Ⅱ)Experiments and calculation result[J]. CIESC Journal, 2011, (9). DOI：

摘要

溶液除湿和再生装置是溶液除湿空调系统中的重要组成部件，常用的溶液除湿和再生装置内部空气和溶液流道一般是非常复杂，其内部传热传质规律也不易精确得到。建立一套最简单的降膜除湿/再生装置，进行逆流除湿和再生实验。采用本文（I）报中的基于热不平衡考虑的Le-hD测量法计算得到溶液平板降膜的耦合传热和传质系数随各种实验工况的变化，并综合成准则方程，为其他更复杂溶液除湿/再生装置的性能预测提供理论基础。

Abstract

The liquid dehumidifiers and regenerators are the key units for liquid desiccant cooling system(LDCS)and the ducts of liquid and air in the equipment are generally very complicated.Consequently

it is not easy to evaluate the internal heat and mass transfer of dehumidifier and regenerator.In this study

a simple falling film dehumidifier/regenerator was constructed and the dehumidification and regeneration experiments with countercurrent flow of liquid were carried out.The new Le-hD measurement method considering non-thermal equilibrium obtained previously was used to evaluate the coupled heat and mass transfer coefficients of plate falling film experiments under various experimental conditions.All these heat and mass transfer coefficients were rearranged in criterion equations to predict the performance of more intricate liquid dehumidifier/regenerator.

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