Record number :
1339630
Title of article :
A generalized correlation for refrigerant mass flow rate through adiabatic capillary tubes
Author/Authors :
Choi، نويسنده , , Jongmin and Kim، نويسنده , , Yongchan and Kim، نويسنده , , Ho Young، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
8
From page :
881
To page :
888
Abstract :
A capillary tube is a common expansion device used in small sized refrigeration and air-conditioning systems. A generalized correlation for refrigerant flow rate in adiabatic capillary tubes is developed by implementing dimensionless parameters based on extensive experimental data for R-22, R-290, and R-407C measured in this study. Dimensionless parameters are derived from the Buckingham Pi theorem, considering the effects of tube inlet conditions, capillary tube geometry, and refrigerant properties on mass flow rate. The generalized correlation yields good agreement with the present data for R-22, R-290, and R-407C with average and standard deviations of 0.9 and 5.0%, respectively. Approximately 97% of the present data are correlated within a relative deviation of ±10%. Further assessments of the correlation are made by comparing the predictions with measured data for R-12, R-134a, R-152a, R-410A, and R-600a in the open literature. The correlation predicts the data for those five refrigerants with average and standard deviations of −0.73 and 6.16%, respectively.
Keywords :
Frigorigène , débit , Capillaire , domestic refrigerator , R-22 , Refrigerant , R-407C , Flow , R-290 , Capillary tube , Air conditioner , SIMULATION , Expansion device , Simulation , R-407C , R-22 , R-290 , Conditionneur dיair , Réfrigérateur domestique , Détente
Journal title :
International Journal of Refrigeration
Journal title :
International Journal of Refrigeration
Serial Year :
2003
Link To Document :
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