인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.3
- 수록면
- 122 - 129 (8page)
- DOI
- 10.6110/KJACR.2021.33.3.122
이용수
초록· 키워드
The formation and growth of frost in refrigerating systems can cause degradation of the system’s performance. Since super-hydrophobic coating technology can delay frost growth, it has received much attention. However, only a limited number of studies have investigated effects of super-hydrophobic surfaces on frost growth. Therefore, this study investigated effects of surface characteristics on frost behavior of heat exchangers. Heat exchangers with bare, hydrophobic, and super-hydrophobic surfaces were tested. Their frost retardation capabilities were evaluated by comparing the time taken for the air flow passage to be blocked. Super-hydrophobic surfaces delayed the time by an average of 61% compared to bare surfaces. Effects of surface characteristics on heat transfer rate and pressure drop of the heat exchanger were also evaluated. Super-hydrophobic surfaces increased the average heat transfer rate by 6.73% and decreased the average pressure drop by 41.6% compared to bare surfaces. In the defrosting process, super-hydrophobic surfaces decreased the defrost energy by an average of 24.9%.
#Defrost energy(제상 에너지)
#Fin-tube heat exchanger(휜-튜브 열교환기)
#Frost retardation(착상 지연)
#Super-hydrophobic surface(초발수 표면)
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목차
- Abstract
- 1. 서론
- 2. 코팅시료 및 시험조건
- 3. 시험방법
- 4. 결과 및 토론
- 5. 결론
- References