Analysis of heat and mass transfer characteristics of desiccant dehumidifier system with honeycomb configuration

Indri Yaningsih, Agung Tri Wijayanta, Takahiko Miyazaki, Shigeru Koyama

研究成果: ジャーナルへの寄稿学術誌査読

13 被引用数 (Scopus)

抄録

Adjusting the heat and moisture of a conditioned space is important to maintain the comfort of the air. Adding or removing heat and moisture depends mainly on the heat and mass transfer characteristics within the system. In this study, the heat and mass transfer characteristics, in the form of the Nusselt number (Nu) and the Sherwood number (Sh), of a honeycomb desiccant dehumidifier (HDDH) were investigated experimentally. The HDDH was driven by using the honeycomb desiccant configuration, which was constructed from a polymer adsorbent material. The adsorption temperature (Tads) was considered as an adjustable parameter using values of 20 °C, 25 °C, and 35 °C. Each adsorption temperature was evaluated under the time intervals for the desorption and adsorption processes (switching time: τ) of 60:60 min, 60:90 min, 60:120 min, and 90:120 min. For the given parameters, the desorption temperature and mass flow rate of the air were kept unchanged at 55 °C and 0.1 kg/s, respectively. The results showed that the Nu and Sh are more evenly responsive to change of adsorption temperature than switching time. Low desorption temperature results in high values of Nu and Sh. However, variation of switching time produces little change in Nu and Sh. Empirical correlations were also developed in this study. The empirical correlations matched the experimental data well.

本文言語英語
ページ(範囲)658-669
ページ数12
ジャーナルApplied Thermal Engineering
144
DOI
出版ステータス出版済み - 11月 5 2018

!!!All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 産業および生産工学

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