【摘要】 针对海水冷却的特点和要求，研究了Ｒ２２ 在高效换热管管内蒸发（管径１６ｍ ｍ ）和管外冷凝（管径１９ｍ ｍ ）的传热和压降特性，并就传热特性与相关文献报道进行了比较。实验结果表明，耐腐蚀铜合金高效换热管作为冷凝器时，其传热性能比普通换热管（如光滑管）要高出一倍左右。这些研究和分析对热泵空调换热器优化设计及海水高低温热源的应用具有重要意义。更多还原

【Abstract】 Condensing and evaporating heat transfer and pressure drop refrigerant R22,flowing outside a 19mm OD(for condensation) and inside a 16mm OD(for evaporation)were investigated.The performance characteristics of heat transfer are compared with data from literature reports.The results show that the performance characteristics of anti rotten efficient cooper alloy tube as a condenser are about two times of those common tubes(such as smooth tubes).These research and analysis are useful in the optimization design of heat exchanger in a heat pump air condition.更多还原