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Fast Calculation Method for Supercritical CO2 Thermodynamic Properties
Dan Zhao 1,Guoliang Ding 1 * #,Zhigang Wu 2
1.Institute of Refrigeration and Cryogenics,Shanghai Jiao Tong University
2.Institute of Refrigeration and Cryogenics,Shanghai
*Correspondence author
#Submitted by
Subject:
Funding: 高等学校博士学科点专项科研基金资助课题,国家自然科学基金（No.20050248019,50576053）
Opened online: 3 April 2008
Accepted by: none
Citation: Dan Zhao,Guoliang Ding,Zhigang Wu.Fast Calculation Method for Supercritical CO2 Thermodynamic Properties[OL]. [ 3 April 2008] http://en.paper.edu.cn/en_releasepaper/content/20104
 
 
Calculations of refrigerant thermal properties are desired to be very fast and stable in cases of simulation of refrigeration system, etc. The implicit curve-fitting method is a quite good method for the fast and stable calculation of refrigerant thermodynamic properties, and it has been used for saturated, two-phase, superheated and subcooled refrigerants. In this paper, new fast calculation method for supercritical CO2 is presented. The results shows that the calculation speeds of the fast calculation formulae for supercritical CO2 are more than 100 times faster than those of REFPROP 7.1 while the total mean relative deviation of the fast calculation formulae from REFPROP 7.1 is less than 1.8 %.
Keywords:CO2; Fast calculation; Thermodynamic properties; Supercritical
 
 
 

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