Earticle

초록

영어

This study presents a numerical modeling and a transient simulation of a desiccant coated heat exchanger (DCHE) that is employed for dehumidification in buildings. DCHE is fabricated by coating type RD silica gel on the fin surfaces of a fin tube heat exchanger. The latent cooling load, which is 25 to 45% of the total cooling load in most weather conditions is removed by adsorption of vapor using DCHE. The saturated adsorbent is then regenerated by using either low-temperature waste heat from industry and/or renewable energy such as solar energy and geothermal energy. A mathematical model is established and a transient simulation has been carried out so as to analyze its performance in terms of average humidity difference (AHD), moisture removal capacity (MRC), latent cooling capacity(QL), and COP. Comparison between the simulation results and the experimental data was carried out and showed good agreement and a similar trend with a maximum discrepancy of 5%. Key results revealed that MRC, AHD, QL, and COP are largely affected by both air dry-bulb temperate and air wet-bulb temperature while they are less affected by the frontal air velocity. Furthermore AHD, MRC and QL are largely improved by hot-water temperature while COP decreases as hot-water temperature increases due to high regeneration energy consumption.

목차

ABSTRACT
기호설명
1. 서론
2. 수치해석
2.1 흡착제 코팅열교환기(DCHE)
2.2 흡착제 특성
2.3 지배방정식
3. 해석결과 및 고찰
3.1 해석 모델의 타당성 검증
3.2 시뮬레이션 결과
4. 결론
후기
References

키워드

저자

• 오승진 [ Seung-Jin Oh | Principle Researcher, Clean energy system R&D Division, Korea Institute of Industrial Technology ]
• 현명택 [ Myung-Taek Hyun | Member, Professor, Department of Mechanical Engineering, Jeju National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620