Optimized fin inclination with cold air recycling for energy-efficient dehumidification
Journal
Results in Engineering
Journal Volume
27
Start Page
106153
ISSN
2590-1230
Date Issued
2025-09
Author(s)
Abstract
This study developed a household thermoelectric dehumidification system that integrates a cold-air recirculation mechanism with an inclined cold-side fin assembly to enhance condensation efficiency and energy performance in small indoor environments. The system redirects cold air from the cold-side fin assembly back toward the hot-side fin assembly by using a fan, thereby assisting with heat dissipation and enhancing condensation. Droplet shedding and continuous surface renewal can be ensured by tilting the cold-side fin assembly to a specific angle and integrating it with a recirculation flow channel. Experiments conducted using fin inclination angles of 0°–90° revealed that optimal thermal performance and dehumidification performance were achieved at a fin inclination of 52° The proposed system achieved a maximum dehumidification rate of 432 g/day, representing a 44 % improvement over that achieved by a commercial thermoelectric dehumidification system. Moreover, the energy consumption of the proposed system was approximately 17 % lower than that of the commercial system. These results confirm that the proposed system can serve as an energy-efficient and environmentally friendly dehumidification solution for compact indoor environments.
Subjects
Cold energy recovery
Energy-saving dehumidification
Tilted condensation
SDGs
Publisher
Elsevier BV
Type
journal article