FILM CONDENSATION OF STEAM ON HORIZONTAL FINNED TUBES: EFFECT OF FIN SPACING.

被引：0

作者：

Wanniarachchi, A.S. ^{[1
]}

Marto, P.J. ^{[1
]}

Rose, J.W. ^{[1
]}

机构：

[1] US Naval Postgraduate Sch, Monterey,, CA, USA, US Naval Postgraduate Sch, Monterey, CA, USA

来源：

Journal of Heat Transfer | 1986年 / 108卷 / 04期

关键词：

HEAT EXCHANGERS - Finned Tubes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The film condensation heat transfer performance of six externally finned copper tubes has been evaluated. All tubes had rectangular-shaped fins with a height and thickness of 1 mm. The spacing between fins was 0. 5, 1. 0, 1. 5, 2. 0, 4. 0, and 9. 0 mm. Data were also obtained for a smooth tube whose outside diameter of 19. 0 mm was equal to the diameter at the base of the fins for all of the finned tubes. Tests were performed both at atmospheric pressure and under vacuum (approximately 11. 3 kPa). Steam flowed vertically downward with a velocity of approximately 1 and m/s at atmospheric pressure and under vacuum, respectively. The smooth tube was fitted with wall thermocouples for the evaluation of the water-side heat transfer coefficient.

引用

页码：960 / 966

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