Wu Yezheng，Zhu Ruiqi，Cao Xiaolin，Yan Gang
(School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract：Combined nucleation theory has been developed by analyzing the mechanism of liquid refrigerant flashing in a capillary tube. According to this theory, the formulas for bubble distribution and bubble growth were derived and a mathematical model simulating liquid refrigerant flash flow in a capillary tube was established. The results obtained by this model agree well with experimental data.
Keywords：capillary tube；flash；nucleation；model