Local frictional pressure drop during vaporization of R-12 through capillary tubes

Abstract The local frictional pressure drop during vaporization of R-12 along capillary tubes is experimentally investigated. A model for the prediction of the local frictional pressure drop of two-phase flows during vaporization of R-12 in capillary tubes is presented. This model agrees with the experimental data to within a relative error of about 15%.