Effect of jet diameter on the maximum surface heat flux during quenching of hot surface

被引：21

作者：

Agrawal, Chitranjan ^{[1
]}

Kumar, Ravi ^{[2
]}

Gupta, Akhilesh ^{[2
]}

Chatterjee, Barun ^{[3
]}

机构：

[1] Maharana Pratap Univ Agr & Technol, Coll Technol & Engn, Dept Mech Engn, Udaipur 313001, Rajasthan, India

[2] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Roorkee 247667, Uttar Pradesh, India

[3] Bhabha Atom Res Ctr, Reactor Safety Div, Bombay 400085, Maharashtra, India

来源：

NUCLEAR ENGINEERING AND DESIGN | 2013年 / 265卷

关键词：

HIGH-TEMPERATURE SURFACE; HORIZONTAL SURFACE; IMPINGEMENT; FLAT; FILM;

D O I：

10.1016/j.nucengdes.2013.09.026

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A stainless steel surface of 0.25 mm thickness at 800 +/- 10 degrees C initial temperature was quenched by the jet impingement cooling method. The transient surface heat flux was determined during surface quenching with three different jet diameter The flow of water at 22 +/- 1 degrees C temperature was regulated to maintain the jet Reynolds number in a range of 5000-24000. The observations were made form the stagnation point to the 12 mm downstream spatial location. The quenching performance of the horizontal test surface was evaluated on the basis of maximum surface heat flux obtained during transient cooling. It was observed that the maximum surface heat flux increases with the rise in jet diameter and became the highest for the largest jet diameter at Re = 24000. The correlations developed to determine the maximum surface heat flux was able to predict the experimental data well within the error band of +/- 15%. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：727 / 736

页数：10

共 35 条

[1] Effect of jet diameter on the rewetting of hot horizontal surfaces during quenching [J].