流体机械

2007, No.420(06) 83-85

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关于R410A和R22翅片管换热器回路数比的探讨
Discussion on the Ratio of the Total Circuit Number for R410A and R22 Coil

申广玉;
SHEN Guang-yu(Trane Asian Design Center,Shanhai 200001,China)

摘要(Abstract):

通过理论计算得出了相同换热量和相同工况下,采用5/16″管径R410A蒸发器(或冷凝器)与采用3/8″管径R22蒸发器(或冷凝器)时回路数的比值,并指出比值是两工质物性差异和盘管的内径及当量摩擦阻力系数差异共同作用的结果。
By theory analysis,the ratio of the total circuit number is obtained between 5/16"tube R410A coil and 3/8"tube R22 coil at the same capacity and working condition.The ratio depends on not only the property difference of the two refrigerants but also the difference of the coil inner diameter and the equivalent friction factor.

关键词(KeyWords): R410A;回路数;蒸发器;冷凝器
R410A;total circuit;number;evaporator;condenser

Abstract:

Keywords:

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作者(Author): 申广玉;
SHEN Guang-yu(Trane Asian Design Center,Shanhai 200001,China)

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