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논문 기본 정보

자료유형
학술저널
저자정보
(한국생산기술연구원) (한국생산기술연구원) (한국생산기술연구원)
저널정보
대한설비공학회 설비공학논문집 설비공학논문집 제33권 제3호
발행연도
수록면
122 - 129 (8page)
DOI
10.6110/KJACR.2021.33.3.122

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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%.
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목차

  1. Abstract
  2. 1. 서론
  3. 2. 코팅시료 및 시험조건
  4. 3. 시험방법
  5. 4. 결과 및 토론
  6. 5. 결론
  7. References

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