HEAT-TRANSFER CHARACTERISTICS OF DROPWISE CONDENSATION ON AN INCLINED CIRCULAR TUBE

被引：2

作者：

HOSOKAWA, T

FUJIWARA, Y

OGAMI, Y

KAWASIMA, Y

YAMASAKI, Y

机构：

[1] Himeji Institute of Technology, Department of Mechanical Engineering 2167, Himeji, Hyogo, 671-22, Shosha

来源：

HEAT RECOVERY SYSTEMS & CHP | 1995年 / 15卷 / 01期

关键词：

D O I：

10.1016/0890-4332(95)90035-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In a previous paper, the authors have investigated the relation between the behaviour of departing drops and the heat transfer on the surface of a horizontal tube. It was found that the departing drops on the condensing surface caused two significant effects, i.e. a sweeping effect and a covering effect. The heat transfer characteristics on the horizontal tube were measured and reported. The purposes of the present paper are to explore a model for calculating the behaviour of the departing drops on an inclined tube and through it to examine the heat transfer characteristics. The effect of the departing drops on the heat transfer is deduced and the phenomenon is clarified. The authors have also found that the heat transfer associated with both the sweeping and covering actions by the departing drops has its maximum at an inclination angle of the condensing tube of alpha almost-equal-to 30-degrees.

引用

页码：31 / 39

页数：9

共 8 条

[1]

Citakoglu, Rose, Dropwise condensation—the effect of surface inclination, Int. J. Heat Mass Transfer, 12, pp. 645-651, (1969)

[2]

Kawai, Kamo, Study on application of dropwise condensation to steam condensers (Experiment and theory of behavior of single water drop on inclined surface), Bulletin of JSME, 9, 36, pp. 756-767, (1966)

[3]

Rose, Further aspects of dropwise condensation theory, Int. J. Heat Mass Transfer, 19, pp. 1363-1370, (1976)

[4]

Hosokawa, Kawai, Komatsu, Kosaka, Heat transfer in dropwise condensation on the upper surface of a horizontal tube, Heat Transfer Japanese Res., 12, 4, pp. 76-89, (1983)

[5]

Hosokawa, Kawai, Fujio, Komatsu, Dropwise condensation heat transfer on a horizontal tube, Bulletin of JSME, 29, 254, pp. 2570-2575, (1986)

[6]

Hosokawa, Hosokawa, Kawai, Dropwise condenation heat transfer on a vertical row of horizontal tubes, ASME HTD, 81, pp. 111-117, (1987)

[7]

Hosokawa, Hosokawa, Komatsu, Kawai, Cole, Dropwise condensation heat transfer on a vertical row of horizontal tubes (calculated results), JAPANESE JOURNAL OF MULTIPHASE FLOW, 3, 1, pp. 21-30, (1989)

[8]

Takadama, Study on a drop (2nd report), Transactions of the Japan Society of Mechanical Engineers, 17, 56, pp. 81-84, (1951)

← 1 →