Energies, Journal Year: 2025, Volume and Issue: 18(10), P. 2418 - 2418

Published: May 8, 2025

Deep dehumidification is crucial for industrial applications requiring ultra-low humidity levels. Traditional cooling-based struggles to achieve low dew points efficiently due excessive energy consumption and frost formation risks. As an alternative, desiccant-based methods, particularly solid desiccant systems, offer improved performance with lower demands. This study experimentally investigates a fixed-bed system utilizing plate-fin heat exchanger filled silica gel/calcium chloride composite material. The evaluation focuses on the influence of ambient conditions operating parameters, including air velocity cooling fluid temperature. Among these, most influential parameter was air. For tested exchanger, optimum value in range 0.4–0.6 m/s identified. Under optimal conditions, HEX able reduce point down −2 °C, achieving reduction ratio up 13 g/kg. results indicate that significantly impacts also mass transfer, coefficients ranging from 80 140 W/(m2 K) 0.015 0.060 kg/(m2 s), respectively. findings highlight potential systems efficient deep dehumidification, outperforming conventional lab-scale components transfer effectiveness. A comparison other works literature indicated 30% increased coefficient achieved seven times higher measured.

Language: Английский