• 제목/요약/키워드: 공성

검색결과 390건 처리시간 0.035초

마이크로다공성 코팅된 발열체에서의 풀비등 직접냉각 성능에 관한 실험적 연구 (An Experimental Study on Direct Cooling Performance using Pool Boiling from Micro-Porous Coated Surface)

  • 김태균;이규정;김용찬;박찬성
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 추계학술대회
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    • pp.1353-1358
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    • 2004
  • An experimental study of pool boiling behavior on micro-porous enhanced square heater surfaces immersed in PF5060 is performed. The effects of heater orientation, Subcooling and substrate distance on the pool boiling heat transfer performance for the double heaters were investigated under increasing heat-flux conditions. The boiling performance of micro-porous coated surface was better than that of plain surface. The double heaters with upper substrate of 0.2cm substrate interval have lower boiling performances compared with the results for the double heaters with that of 0.5cm and 1.0cm substrate interval and without the substrate. In comparison to upper heater and below heater with orientation, the upper heater has lower superheat temperature than the below heater due to the bubble sweeping.

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