An investigation of heat transfer coefficient during refrigerants condensation in vertical pipe minichannels

被引：8

作者：

Bohdal, Tadeusz ^{[1
]}

Charun, Henryk ^{[1
]}

Kruzel, Marcin ^{[1
]}

Sikora, Malgorzata ^{[1
]}

机构：

[1] Koszalin Univ Technol, Dept Energet, Ul Raclawicka 15-17, PL-75620 Koszalin, Poland

来源：

17TH INTERNATIONAL CONFERENCE HEAT TRANSFER AND RENEWABLE SOURCES OF ENERGY (HTRSE-2018) | 2018年 / 70卷

关键词：

TRANSFER MODEL; TUBES;

D O I：

10.1051/e3sconf/20187002001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This article presents the results of experimental research of heat transfer coefficient in air cooled vertical pipe minichannels during R404A, R407C and R410A high-pressure refrigerants condensation. The study determined local and average heat transfer coefficient values in full range of vapour quality, x = 0 divided by 1. On the basis of experimental investigations, the dependence of heat transfer on the vapour quality x, mass flux density G and minichannel's internal diameter d(w) was obtained.

引用

页数：6

共 20 条

[1]

Ackers W.W., 1960, Chemical Engineering Progress Symposium, V56, P145

[2] Measurement and modeling of condensation heat transfer in non-circular microchannels [J].