연구진흥

창의적인 신지식 창출과 산업계와의 협력적 네트워크 구축

금주의 우수논문

SCI-E Article
Performance evaluation and optimization of humidification-dehumidification desalination system for low-grade waste heat energy applications
김영득
  1. 성명
    김영득
  2. 소속
    공학대학 기계공학과
  3. 캠퍼스
  4. 우수선정주
    2022년 05월 2째주
Author
Santosh, Ravichandran (Dept Mech Engn); Santosh, Ravichandran (ER Ind Univ Cooperat Fdn); Yoo, Chan Ho (Dept Mech Design Engn); 김영득 (Dept Mech Engn) corresponding author; Kim, Young-Deuk (BK21 FOUR ERICA ACE Ctr);
Corresponding Author Info
Kim, YD(해당 저자), Hanyang Univ, Dept Mech Engn, 55 Hanyangdaehak Ro, Ansan 15588, Gyeonggi Do, South Korea.
E-mail
이메일youngdeuk@hanyang.ac.kr
Document Type
Article
Source
DESALINATION Volume:526 Issue: Pages:- Published:2022
Times Cited
0
External Information
http://dx.doi.org/10.1016/j.desal.2021.115516
Abstract
A humidification-dehumidification desalination system powered by low-grade waste heat energy (45 degrees C-70 degrees C) was experimentally investigated. The seawater directly utilized as coolant (25 degrees C) for the dehumidifier was preheated by latent heat recovery from the water vapor produced by the humidifier. The effect of key performance-contributing factors such as the mass flow rate and temperature of the air and feed at the inlets of the humidifier and dehumidifier were evaluated and optimized. For a constant volume, the effect of the humidifier's surface area was evaluated comparatively considering different novel packing materials such as tripack rings, pall rings (diameter = 16 mm and 25 mm), saddle rings, and snowflake rings. It was determined that compared to other factors, air-related and water-related parameters influenced the humidifier and dehumidifier performance respectively. Maximum freshwater productivity of 1398 mL/h was achieved with 16 mm pall ring humidifier, owing to its improved wet area (188,000 m(2)/m(3)) under optimal conditions of air flow rate, feed flow rate, humidifier air inlet temperature, humidifier, and dehumidifier water inlet temperatures of 3.5 kg/min, 0.9 L/min, 70 degrees C, 55 degrees C, and 25 degrees C, respectively, with a dual-fluid preheating mechanism. Detailed chemical analysis revealed that the generated freshwater is potable.
Web of Science Categories
Engineering, Chemical; Water Resources
Funding
ERICA ERICA Industry-University Cooperation Foundation, Hanyang University, Republic of Korea (HY-2021); [HY-2021]
Language
English
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