Experimental investigation of desiccant dehumidification cooling system for climatic conditions of multan (pakistan)

Muhammad Aleem, Ghulam Hussain, Muhammad Sultan, Takahiko Miyazaki, Muhammad H. Mahmood, Muhammad I. Sabir, Abdul Nasir, Faizan Shabir, Zahid M. Khan

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)


In this study, experimental apparatus of desiccant dehumidification was developed at labscale, using silica gel as a desiccant material. Experimental data were obtained at various ambient air conditions, while focusing the climatic conditions of Multan (Pakistan). A steady-state analysis approach for the desiccant dehumidification process was used, and thereby the slope of desiccant dehumidification line on psychrometric chart (π) was determined. It has been found that π= 0.22 in case of silica gel which is lower than the hydrophilic polymeric sorbent, i.e., π= 0.31. The study proposed two kinds of systems, i.e., (i) standalone desiccant air-conditioning (DAC) and (ii) Maisotsenko-cycle-assisted desiccant air-conditioning (M-DAC) systems. In addition, two kinds of desiccant material (i.e., silica gel and hydrophilic polymeric sorbent) were investigated from the thermodynamic point of view for both system types, using the experimental data and associated results. The study aimed to determine the optimum air-conditioning (AC) system type, as well as adsorbent material for building AC application. In this regard, perspectives of dehumidification capacity, cooling capacity, and thermal coefficient of performance (COP) are taken into consideration. According to the results, hydrophilic polymeric sorbent gave a higher performance, as compared to silica gel. In case of both systems, the performance was improved with the addition of Maisotsenko cycle evaporative cooling unit. The maximum thermal COP was achieved by using a polymer-based M-DAC system, i.e., 0.47 at 70 °C regeneration temperature.

出版ステータス出版済み - 10月 22 2020

All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • エネルギー工学および電力技術
  • エネルギー(その他)
  • 制御と最適化
  • 電子工学および電気工学


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