化工学报2023，Vol.74Issue(10)：4020-4036,17.DOI:10.11949/0438-1157.20230650
微通道蒸发器优化两相制冷剂分配及沸腾传热研究进展
Research progress on optimizing two-phase refrigerant distribution and boiling heat transfer in microchannel evaporators
汤志轩 1郭文华 1吴思远 1赵日晶 1黄东1
作者信息
- 1. 西安交通大学能源与动力工程学院,陕西 西安 710049
- 折叠
摘要
Abstract
Microchannel evaporators are widely used in refrigeration systems due to low charge capacity,high heat transfer performance,and low cost.Further improvement in the performance of microchannel evaporators helps to reduce refrigerant charge and increase the compactness of microchannel heat exchangers.The microchannel evaporator is mainly composed of a header and microchannel flat tubes.Optimizing the distribution of two-phase refrigerant in the header and enhancing the flow boiling inside the microchannel flat tubes can effectively improve the overall performance of the microchannel evaporator.First,the factors affecting the two-phase distribution in the header and the flow boiling characteristics in the microchannel flat tube were clarified.Then,measures to improve the two-phase refrigerant distribution scheme and enhance flow boiling are summarized.Finally,further prospects are given for methods to improve the performance of microchannel evaporators.关键词
微通道蒸发器/两相分配/传热/蒸发/气液两相流Key words
microchannel evaporator/two-phase distribution/heat transfer/evaporation/gas-liquid flow分类
能源科技引用本文复制引用
汤志轩,郭文华,吴思远,赵日晶,黄东..微通道蒸发器优化两相制冷剂分配及沸腾传热研究进展[J].化工学报,2023,74(10):4020-4036,17.
