Heat and mass transfer of packed bed regenerator for liquid desiccant air-conditioning system

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  • リキッドデシカント空調システム用再生器の 熱・物質移動特性
  • リキッドデシカント クウチョウ システムヨウ サイセイキ ノ ネツ ・ ブッシツ イドウ トクセイ

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In air-conditioning field, a dehumidification and humidification have become increasingly important for human health and comfort. Much attention has been paid recently to a desiccant air-conditioning system as an alternative to the conventional system with a vapor compression cycle. In this paper, we focus on a liquid desiccant air-conditioning system using lithium chloride – water solution and investigate the heat and mass transfer of packed bed regenerator experimentally. In the experiment, effects of the air superficial velocity and solution mass flux on the outlet air conditions and the average overall heat and mass transfer coefficients are examined. As a result, the average overall heat and mass transfer coefficients increase with increasing of the air superficial velocity, however, the average overall heat transfer coefficient is almost constant with increasing of the solution mass flux.

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