ORIGINAL RESEARCH article
Front. Therm. Eng.
Sec. Advancements in Cooling and Heating
Volume 5 - 2025 | doi: 10.3389/fther.2025.1683632
This article is part of the Research TopicInnovations in Sustainable Refrigerants: Balancing Performance and Environmental Impact for Green CoolingView all articles
Sustainable Air Dehumidification Using Liquid Desiccant Technology: Performance Analysis of a Packed Bed System
Provisionally accepted
- 1Chandigarh Engineering College, Ajitgarh, India
- 2Guru Nanak Dev University, Amritsar, India
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Desiccant-based dehumidification is a promising energy-efficient solution for air moisture control, particularly in humid climates. This paper aims to experimentally evaluate the performance of a counter flow packed bed dehumidifier using PVC honeycomb packing with calcium chloride solution as a desiccant. Desiccant solution flow rate, air mass flow rate, and air inlet temperature were the main input variables taken into account in the experiment. The performance of the system was assessed by measuring the moisture removal rate, the exit air temperature, and the air's outlet humidity ratio. Results show that increasing the air mass flow rate from 0.00074 to 0.00119 kg/s and raising the desiccant inlet temperature from 50°C to 70°C increases the moisture extraction rate from 0.032×10⁻⁴ kg/s to 0.225×10⁻⁴ kg/s and a corresponding rise in outlet humidity ratio. These outcomes contribute to the optimization of liquid desiccant dehumidifiers and hence support their broader application in energy-efficient climate control systems.
Keywords: Refrigeration, desiccant, Dehumidification, Packed bed system, sustainability
Received: 11 Aug 2025; Accepted: 24 Sep 2025.
Copyright: © 2025 Singh and Kumar. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Satwinder Singh, singhsatwinder371@gmail.com
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