空调全铝新型换热器结构优化与性能研究

Structural Optimization and Performance Test About Aluminum Heat Exchanger of Air-Condition

对新型家用空调换热器的物理模型单元进行合理的简化处理后,利用Fluent软件对换热器波纹翅片进行了优化设计,得出优化后换热器波纹翅片的结构尺寸,为实际设计和研究提供了理论依据.按照结构优化结果生产换热器试验样件,利用空气焓值法对使用新型换热器和翅片管式换热器的家用空调机进行了对比实验,实验结果表明:采用传热面积和体积都较小的新型换热器后空调的制冷量有所增大,总耗功率却基本不变,空调的效能比提高5%,是目前家用空调翅片管式换热器的理想替代品.

Based on the simplified heat exchanger model of air-condition,numerical simulation of heat exchange in air side has been implemented using Fluent software.The optimized structural parameters of fin were obtained,which provide a theoretical basis for practical design and research.Following the results of optimized structure,the prototype of new heat exchanger was produced.Using air enthalpy method,the contrastive experiments between the new condenser and the common wing-pipe heat exchanger of family air-condition were down.The experimental results show that the new condenser with smaller volume and diathermanous area could create more refrigerating capacity and improve the EER（energy efficiency ratio）by 5%,while the total power consumption is basically unchanged.It could be concluded that this kind of all aluminum heat exchanger is the ideal substitute for family air-condition＇s wing-pipe heat exchanger.