广西工学院学报
廣西工學院學報
엄서공학원학보
JOURNAL OF GUANGXI UNIVERSITY OF TECHNOLOGY
2011年
3期
64-66
,共3页
平行流蒸发器%制冷剂质量流速%分布均匀%换热性能
平行流蒸髮器%製冷劑質量流速%分佈均勻%換熱性能
평행류증발기%제랭제질량류속%분포균균%환열성능
parallel flow type evaporator%mass velocity of refrigerant%uniform distribution%heat transfer performance
平行流蒸发器是紧凑型换热器，制冷剂在微通道扁管的传热与传质是一个复杂、但有应用价值的课题．本文针对某车38mm平行流蒸发器的实验研究发现：制冷剂体积流量为0．42L／min时，换热性能达到最佳；同时借助CFD（ComputationalFluidDynamics）数值模拟分析得知：在集流管处设置节流环，可以控制制冷剂在各扁管的分布均匀，亦是提高换热性能的有效手段。为38mm平行流式蒸发器的优化设计提供理论参考．
平行流蒸髮器是緊湊型換熱器，製冷劑在微通道扁管的傳熱與傳質是一箇複雜、但有應用價值的課題．本文針對某車38mm平行流蒸髮器的實驗研究髮現：製冷劑體積流量為0．42L／min時，換熱性能達到最佳；同時藉助CFD（ComputationalFluidDynamics）數值模擬分析得知：在集流管處設置節流環，可以控製製冷劑在各扁管的分佈均勻，亦是提高換熱性能的有效手段。為38mm平行流式蒸髮器的優化設計提供理論參攷．
평행류증발기시긴주형환열기，제랭제재미통도편관적전열여전질시일개복잡、단유응용개치적과제．본문침대모차38mm평행류증발기적실험연구발현：제랭제체적류량위0．42L／min시，환열성능체도최가；동시차조CFD（ComputationalFluidDynamics）수치모의분석득지：재집류관처설치절류배，가이공제제랭제재각편관적분포균균，역시제고환열성능적유효수단。위38mm평행류식증발기적우화설계제공이론삼고．
Parallel flow type the micro-channel flat tube is evaporator is a compact heat exchanger. Heat and mass transfer of the refrigerant in a subject which is complex but full of application value. According to the experimen- tal study of 38 mm parallel flow evaporator in a car in this paper, it finds out that heat transfer performance achieves to the best when the refrigerant volume flow is 0.42 （L/min）. Meanwhile, with the help of CFD （Compu- tational Fluid Dynamics） numerical simulation analysis, it has shown that setting the throttle ring in current collec- tor can not only control the uniform distribution of refrigerant in the flat tube but also effectively improve the heat transfer performance. The result provides a theoretical reference for the optimization design of 38 mm parallel flow type evaporator.
