|
Abstract: The flow of refrigerant in short tube exists obvious
hydrodynamic and thermodynamic non-equilibrium. A non-equilibrium
two-fluid model with six equations for two-phase flow of refrigerant in
short tube is developed. Both interphase velocity slip and interphase
temperature slip are taken into account in the model. The calculation
results show that velocity slip and temperature slip in a short tube are
larger than that in a capillary tube. Comparison between the
experimental data of R134a flowing through short tubes and predictions
give acceptable deviations of ±20%.
Key words: Short tube Two-fluid model Non-equilibrium R134a
CLC No: TB65
Received 20031014,
received in revised form 20031230
|