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| Calculation of HighPrecision Pseudocritical Temperatures for Transcritical Transient Analysis |
| FU Sheng-Wei, ZHOU Chong, YANG Yan-Hua, CHENG Xu |
| (1.Navy University of Engineering, Wuhan 430000, China;2.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract The development of thermalhydraulic system code applicable for transcritical transients’ calculation requires the support of a pseudocritical temperature calculating module with high precision. Based on the accurate data of pseudocritical temperatures obtained by the IAPWSIF97 thermalphysical property equations, the relation between pseudocritical temperature and pressure was fitted. The fitting equations are capable of providing pseudocritical temperatures with good precision. This paper presented the implementation of the fitting equations into a thermalhydraulic system code, as well as simulation of some simple transcritical transients. The results indicate that the pseudocritical temperature calculating method developed in this paper is applicable.
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Received: 23 August 2010
Published: 30 March 2011
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