制冷学报2012，Vol.33Issue(5)：43-48,6.DOI:10.3969/j.issn.0253-4339.2012.05.043
压缩式制冷空调机组壳管式换热器的传热强化研究进展
A Review on Heat Transfer Enhancement in Shell-and-tube Heat Exchanger of Compression Type Refrigeration and Air Conditioning Unit
张正国 1石国权 1徐涛 1高学农 1汪双凤1
作者信息
- 1. 华南理工大学传热强化与过程节能教育部重点实验室 广州510640
- 折叠
摘要
Abstract
Heat exchangers including condenser and evaporator are important equipments in the compression type refrigeration and air conditioning units, and their heat transfer coefficients have a direct effect on the efficiency and cost of the units. The application of the heat transfer enhancement technology is a key route to improve the heat transfer performance of the condenser and evaporator. For the condensation heat transfer enhancement on the tube outside of condenser, the fractured fins of Turbo-C can be separated from the tips to the roots to reduce the effect of the viscous property of condensate on the heat transfer performance at the presence of surface tension. The replacement of the segmental baffles with the helical baffles can improve the flow characteristics and heat transfer performance of the condenser and dry evaporator. Considering the different heat transfer characteristics between the falling film regions and the flooded evaporation regions in the falling film evaporator, different types of enhanced tubes should be used to improve the heat transfer performance of the evaporator.关键词
热工学/强化传热/冷凝器/蒸发器/制冷空调机组Key words
Pyrology/ Heat transfer enhancement/ Condenser/ Evaporator/ Refrigerant and conditioning units分类
通用工业技术引用本文复制引用
张正国,石国权,徐涛,高学农,汪双凤..压缩式制冷空调机组壳管式换热器的传热强化研究进展[J].制冷学报,2012,33(5):43-48,6.
