Experimental investigation of heat transfer of supercritical carbon dioxide flowing in a cooled vertical tube

被引：134
|
作者：
Bruch, A. [1 ]
Bontemps, A. [1 ]
Colasson, S. [2 ]
机构：
[1] Univ Grenoble 1, Lab Ecoulements Geophys & Ind, F-38402 St Martin Dheres, France
[2] CEA, Lab Greth, F-38054 Grenoble 9, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2009年 / 52卷 / 11-12期
关键词：
Carbon dioxide; Supercritical; Cooling; Heat transfer; Mixed convection; Vertical flows; PRESSURE-DROP CHARACTERISTICS; COOLING PROCESS; CONVECTION;
D O I：
10.1016/j.ijheatmasstransfer.2008.12.021
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This work presents an experimental investigation on the heat transfer characteristics of a cooled vertical turbulent flow of supercritical carbon dioxide. The test section consists of two sectors (vertical tube-in-tube) connected in series by means of a U-bend. An integral method is used to treat the experimental data. Experimental results illustrate the influence of buoyancy forces on the heat transfer process. Results are presented in dimensionless form commonly used in the studies of mixed convection in heating. Correlations have been developed for upward and downward flows. The present results complete the literature on turbulent vertical mixed convection under cooling conditions. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2589 / 2598
页数：10
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