Condensation heat transfer on noncircular pipes in stationary vapor

被引：6
|
作者：
Semenov, V. [1 ]
Nikitin, N. [1 ]
机构：
[1] Magnitogorsk State Univ, Chelyabinsk 455000, Russia
来源：
HEAT TRANSFER RESEARCH | 2008年 / 39卷 / 04期
关键词：
D O I：
10.1615/HeatTransRes.v39.i4.50
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
There is a mathematical model for condensation heat transfer on noncircular horizontal tubes with optional cross-section profile. This model is developed taking into account the surface tension force. In this report, we present calculations for local and medium condensate-film thickness and average condensation heat transfer rate for three types of smooth horizontal tubes. The conditions to optimize the cross-section form are determined. These conditions are connected with condensate-film thickness allocation on the condensation surface. In addition, geometric restrictions on the form of these profiles are presented.
引用
收藏
页码：317 / 326
页数：10
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