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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Condensation heat transfer can be classified in dropwise condensation and filmwise condensation, and for the industrial purpose, the former is more useful than the latter because of the higher heat transfer rate.
But it is difficult to maintain the dropwise condensation continuously since most of the metal surfaces become wetted after exposure to a condensing vapor over an extended period of time.
To maintain dropwise condensation continuously, various surface coatings and promotors have been used recently, but these methods must be reconsidered about the durability of condensing surface.
Therefore, in this study, evaporating method of various pure metals on the condensing surface has been performed to maintain dropwise condensation.
The results have showed that the heat transfer rate of silver evaporating surface is higher than any other metal evaporating in dropwise area. Transition temperature and filmwise condensation curves are uniform regardless of kinds of evaporating metals.
But it is difficult to maintain the dropwise condensation continuously since most of the metal surfaces become wetted after exposure to a condensing vapor over an extended period of time.
To maintain dropwise condensation continuously, various surface coatings and promotors have been used recently, but these methods must be reconsidered about the durability of condensing surface.
Therefore, in this study, evaporating method of various pure metals on the condensing surface has been performed to maintain dropwise condensation.
The results have showed that the heat transfer rate of silver evaporating surface is higher than any other metal evaporating in dropwise area. Transition temperature and filmwise condensation curves are uniform regardless of kinds of evaporating metals.
목차
ABSTRACT
1. 序論
2. 實驗裝置 및 方法
3. 實驗結果 및 考察
4. 結論
感謝文
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