Measurement of two-phase refrigerant liquid-vapor mass flow rate - Part II: turbine and void fraction meters

The use of a turbine meter for the measurement of refrigerant liquid-vapor mass flow rate in a horizontal pipe is presented. Various models that utilize the output of the turbine flowmeter and the measured void fraction and/or quality to calculate the two-phase mass flow rate were examined. It was found that, although no model performed particularly well, Rouhani's model gave the best overall predictions of the actual mass flow rates and had …