Artículos de revistas
Experimental evaluation on the oil influence in capillary tubes
Fecha
2009Registro en:
APPLIED THERMAL ENGINEERING, v.29, n.14-15, p.3066-3072, 2009
1359-4311
10.1016/j.applthermaleng.2009.04.014
Autor
HUERTA, Alex Alberto Silva
FIORELLI, Flavio Augusto Sanzovo
SILVARES, Otavio de Mattos
Institución
Resumen
This work presents the results of an experimental study on pure refrigerant R-134a and refrigerant-oil mixtures flowing through capillary tubes in order to analyse the oil influence in component performance. Tests were carried out for capillary tubes internal diameters of 0.69 mm and 0.82 mm, condensing temperatures ranging from 40 degrees C to 50 degrees C, and subcooling degrees between 3 degrees C and 12 degrees C. Pure refrigerant flow measurements were compared to those for refrigerant-oil mixtures with oil concentrations of 1.0% and 3.0%. (C) 2009 Elsevier Ltd. All rights reserved.