| Title |
Dehumidification Performance of a Solution Atomization Based Liquid Desiccant Dehumidifier under Various Operating Conditions |
| Authors |
Soo-Jin Lee ; Jae-Weon Jeong |
| DOI |
https://doi.org/10.6110/KJACR.2022.34.2.083 |
| Keywords |
초음파 분사; 미세액적 크기; 액기비; 전달단위수(NTU); 제습 효율 Ultrasonic atomization; droplet size; liquid-to-gas ratio; NTU; Dehumidification effectiveness |
| Abstract |
The purpose of this study was to evaluate the applicability of a solution atomization technology for liquid desiccant dehumidifier to enhance the dehumidification performance. The dehumidification performance and energy benefits of the proposed system were compared with the conventional packed-bed liquid desiccant dehumidifier under various operating conditions, such as atomized droplet size and liquid-to-gas ratio. The numerical simulation was conducted to analyze the heat and mass transfer process in a dehumidifier, NTU for mass transfer, outlet air humidity ratio, effectiveness of dehumidification, and energy-saving potential. The results indicate that the NTU increases as smaller droplet size and high liquid-to-gas ratio. Because dehumidification performance is proportional to the NTU, the outlet air humidity ratio is lower at high NTU. Finally, the proposed system operated at 50 μm droplet size could save 17% solution consumption compared with the conventional system. |