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EFFECT OF NON-CONDENSABLE GAS AND WAVY INTERFACE ON THE CONDENSATION HEAT-TRANSFER IN A NEARLY HORIZONTAL PLATE SCIE SCOPUS

Title
EFFECT OF NON-CONDENSABLE GAS AND WAVY INTERFACE ON THE CONDENSATION HEAT-TRANSFER IN A NEARLY HORIZONTAL PLATE
Authors
KANG, HCKIM, MH
Date Issued
1994-09
Publisher
ELSEVIER
Abstract
An experimental study was conducted to investigate the effect of non-condensable gas and wavy water film on condensation heat transfer. The experiment was performed in a nearly horizontal (4.1 degrees) square duct of 0.1 m height, 0.15 m width and 1.52 m length at atmospheric pressure. A water film in a steady thermal condition was injected to simulate the effect of a wavy interface on the condensation. The experimental data for the heat transfer coefficient and the interfacial structure of the wavy condensate were obtained along with the three parameters: air mass fraction, mixture velocity and film flow rate. When the interface is smooth, the heat transfer coefficients with or without non-condensable gas agree reasonably with the previous theories. The waviness of condensate film increases the heat transfer up to several tenths of a per cent.
URI
https://oasis.postech.ac.kr/handle/2014.oak/21920
DOI
10.1016/0029-5493(94)90297-6
ISSN
0029-5493
Article Type
Article
Citation
NUCLEAR ENGINEERING AND DESIGN, vol. 149, no. 1-3, page. 313 - 321, 1994-09
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