Experimental investigation on the performance parameters of a helical coil dehumidifier test rig

Salins, Sampath Suranjan and Siddiqui, Shahida Anusha and Reddy, S V Kota and Kumar, Shiva (2021) Experimental investigation on the performance parameters of a helical coil dehumidifier test rig. Energy sources, part a: recovery, utilization, and environmental effects, 43 (1). pp. 35-53. ISSN 1556-7036

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Abstract

Water scarcity is a major problem faced in different parts of the world due to various reasons. Highly humid places closer to sea offers discomfort to the people and the moisture transport inside the building causes hazards to the interior and exterior over a period of time. However, both the water scarcity and high humidity problem can be addressed with the development of a novel system. Present work focuses on the dehumidification process where highly humid air moves over the copper coils wound helically, with cold water running through it. Vapor compression refrigeration cycle main�tains the temperature of the cold water. The dehumidification is enhanced with the condensation of moisture and then dehumidified air enters the room. The fresh water collected is used as drinking water. Thermal para �meters like temperature and humidity are measured and the overall dehu� midification efficiency is assessed. Water condensation rate is found to be optimum for the air velocity 2 m/s with a dehumidification coil temperature of 2°C. These values are 22% and 31% higher than the water temperatures of 5°C and 10°C. The average water harvesting from the current system is 1.90 kg/hr. or 2.57 liters per hour (l/hr.).

Item Type: Article
Uncontrolled Keywords: Dehumidification; bypass factor; condensation rate; water generation; helical
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 23 Apr 2021 09:06
Last Modified: 23 Apr 2021 09:06
URI: http://eprints.manipal.edu/id/eprint/156658

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