Abstract
This paper deals with decompression flashing flows through an adiabatic capillary tube with inlet subcooling and supercritical conditions. Blowdown experiments were carried out for a horizontal copper straight tube with the inner diameter of 0.7 mm and the length of 1000 mm. Boiling inception points were measured form wall temperature profiles, and critical mass flow rates were measured. The condition when a flow became to critical flow was specified by changing the exit pressure. As the results, for the inlet subcooling conditions, a boiling delay with thermal non-equilibrium around the boiling inception point was not observed. In this case, measured temperature profiles agreed well with numerical calculation results based on homogenous model.
