Journal of Shanghai Jiaotong University ›› 2011, Vol. 45 ›› Issue (03): 413-417.

• Atomic Energy Technology • Previous Articles     Next Articles

Calculation of HighPrecision Pseudocritical Temperatures for Transcritical Transient Analysis

 FU  Sheng-Wei, ZHOU  Chong, YANG  Yan-Hua, CHENG  Xu   

  1. (1.Navy University of Engineering, Wuhan 430000, China;2.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2010-08-23 Online:2011-03-30 Published:2011-03-30

Abstract: The development of thermalhydraulic system code applicable for transcritical transients’ calculation requires the support of a pseudocritical temperature calculating module with high precision. Based on the accurate data of pseudocritical temperatures obtained by the IAPWSIF97 thermalphysical property equations, the relation between pseudocritical temperature and pressure was fitted. The fitting equations are capable of providing pseudocritical temperatures with good precision. This paper presented the implementation of the fitting equations into a thermalhydraulic system code, as well as simulation of some simple transcritical transients. The results indicate that the pseudocritical temperature calculating method developed in this paper is applicable.

Key words:  supercritical water, transcritical transients&rsquo, calculation, properties of water, pseudocritical temperature

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