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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
- 저널정보
- 대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.22 No.1
- 발행연도
- 2008.1
- 수록면
- 127 - 133 (7page)
이용수
초록· 키워드
오류제보하기
Film-wise and drop-wise condensation experiments were carried out at atmospheric pressure varying the condensing plates, their inclinations and orientations (upward or downward facing), and the air concentrations. As expected, dropwise
condensation showed much higher heat transfer rates than corresponding film-wise condensation in the pure steam cases. However, with the presence of air, both modes of condensation showed similar heat transfer rates due to the high thermal resistance of the air-rich layer. Both modes of condensation showed systematic decreases in heat transfer as the angle of the plate to the horizontal decreased and as the concentration of air increased. A noteworthy observation made during the tests on the plate orientation showed that condensation heat transfer rates on the upward facing plate were slightly higher than those beneath the downward facing plate in the pure steam cases but that the trends were reversed in the steam and air mixture cases.
condensation showed much higher heat transfer rates than corresponding film-wise condensation in the pure steam cases. However, with the presence of air, both modes of condensation showed similar heat transfer rates due to the high thermal resistance of the air-rich layer. Both modes of condensation showed systematic decreases in heat transfer as the angle of the plate to the horizontal decreased and as the concentration of air increased. A noteworthy observation made during the tests on the plate orientation showed that condensation heat transfer rates on the upward facing plate were slightly higher than those beneath the downward facing plate in the pure steam cases but that the trends were reversed in the steam and air mixture cases.
목차
Abstract
1. Introduction
2. Experimental apparatus
3. Results and discussions
4. Conclusions
Acknowledgment
References
참고문헌 (15)
참고문헌 신청
1. [단행본] - T. Fujii / 1991 / Theory of Laminar Film Condensation / Springer-Verlag : 7 ~ 8
2. [학술지(정기간행물)] - J. W. Rose / 1998 / Condensation heat transfer fundamen-tals / Chemical Engineering Research and Design 76 (A2) : 143 ~ 152
3. [학술지(정기간행물)] - W. Nusselt / 1916 / he condensation of steam on cooled surfaces / ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE 60 : 541 ~ 546
4. [학술지(정기간행물)] - W. M. Rohsenow / 1956 / Heat transfer and temperature distribution in laminar film condensation / ASME Transactions 78 : 1645 ~ 1648
5. [학술지(정기간행물)] - E. M. Sparrow / 1959 / A boundary-layer treatment of laminar film condensation / JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME 81 : 13 ~ 18
2. [학술지(정기간행물)] - J. W. Rose / 1998 / Condensation heat transfer fundamen-tals / Chemical Engineering Research and Design 76 (A2) : 143 ~ 152
3. [학술지(정기간행물)] - W. Nusselt / 1916 / he condensation of steam on cooled surfaces / ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE 60 : 541 ~ 546
4. [학술지(정기간행물)] - W. M. Rohsenow / 1956 / Heat transfer and temperature distribution in laminar film condensation / ASME Transactions 78 : 1645 ~ 1648
5. [학술지(정기간행물)] - E. M. Sparrow / 1959 / A boundary-layer treatment of laminar film condensation / JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME 81 : 13 ~ 18
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