张宗楠,陶乐仁,程建,王建
ZHANG Zong-nan,TAO Le-ren,CHENG Jan,WANG Jan

• 1:上海理工大学

摘要(Abstract)：

为了研究水平强化单管的管内冷凝性能,搭建了实验台。研究了在冷却水量不变的情况下,R410A在不同冷凝温度(35℃和40℃)和不同管径(5mm和9.52mm)下的换热情况。结果表明:总换热系数和压降随工质质量流量的增大而增大,质量流量对管内换热系数影响不是很大。冷凝温度40℃,5mm铜管的换热系数最高;冷凝温度40℃,9.52mm铜管的压降最小。
Establishes laboratory bench to research the condensation heat transfer performance of horizontal internally ribbed tube.The heat transfer performance of R410A in different tube diameter(5mm and 9.52mm) and different condensing temperature(35℃ and 40℃) with the same cooling flow rate was studied.According to the experimental data,the overall heat transfer coefficient and the pressure drop increase with the rise of refrigerant mass flow rate.The mass flow rate has a little effect on the heat transfer coefficient in the tube.The 5mm tube has the maximum heat transfer coefficient and 9.52mm tube has the minimum pressure drop under 40℃ condensing temperature.

关键词(KeyWords)： R410A;冷凝;内螺纹管;换热系数;压降
R410A;condensation;internally ribbed tube;heat transfer coefficient;pressure drop

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张宗楠,陶乐仁,程建,王建
ZHANG Zong-nan,TAO Le-ren,CHENG Jan,WANG Jan

参考文献(References)：

• [1]Richard L.Powell.CFC Phase-Out:Have We Met the Challenge[J].Journal of Fluorine Chemistry,2002,114(2):237-250.
• [2]石毅登,田怀璋,张小艳.近共沸混合制冷剂R410A的研究进展[J].流体机械,2004,32(9):60-64.
• [3]段雪涛,高凤玲,邬志敏,等.R410A替代R22空调蒸发器的换热性能[J].河南科技大学学报,2009,30(2):54-56.
• [4]王勤,陈福胜,朱志伟,等.HFC161混合物作HCFC22替代制冷剂的实验研究[J].工程热物理学报,2009,30(2):202-204.
• [5]刘荣,陶乐仁,高立博.R410A在内螺纹管内无润滑油沸腾换热实验研究[J].制冷学报,2011,32(4):20-24.
• [6]杨世铭,陶文铨.传热学[M].北京:高等教育出版社,1998.
• [7]靳遵龙,刘东来,刘敏珊,等.超临界CO2冷却条件下水平微圆管中对流换热特性[J].压力容器,2012,29(7):9-13,78.
• [8]曾宪阳,王洪利,马一太.CO2跨临界循环和氟利昂制冷剂循环性能分析[J].流体机械,2011,39(6):80-85.
• [9]金从卓,王正,王铁军,等.HLD-40b高温空调混合剂冷却替代研究[J].流体机械,2011,39(1):62-64,24.
• [10]韩晓霞,南晓红,刘咸定,等.R290与R404A在水平管内沸腾换热的压降研究[J].制冷学报,2006,27(2):17-20.