EXPERIMENTAL STUDY ON THE DEPRESSURIZATION OF FREON AT SUPERCRITICAL PRESSURE
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16


Presented at:
The 5th International Symposium on SuperCritical Water-cooled Reactors
2011 March 13-16
Location:
Vancouver,Canada
Session Title:
Heat-Transfer Experiment (II)

Authors:
Ge Zhang (Shanghai Jiaotong University)
Naji Al-Hawshabi (Shanghai Jiaotong University)
Yanhua Yang (Shanghai Jiaotong University)
  

Abstract

The depressurization process of supercritical water has a significant influence on the safety of SCWR. The paper carried out the experimental study of the top and bottom vented blowdown processes of supercritical Freon(R134a).    The investigation focuses on pressure and temperature transients. The effect of initial fluid conditions, orifice diameter on depressurization behavior was experimentally analyzed. During the isentropic change, it was observed that pressure at which two phases appear depends mainly on the initial fluid condition and depressurization mass flow rate.

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