超临界CO_2热力性质及迁移性质快速计算方法_赵丹.pdf

　42 8 上 海 交 通 大 学 学 报 Vol.42 No.8　 　2008 8 JOURNAL OF SHANGHAI JIAOTONG UNIVERSIT Y Aug.2008　 　　:1006-2467(2008)08-1269-05 CO2 赵　丹, 　吴志刚, 　 丁国良 ( , 200240) 　:提出超临界CO2 热力性质及迁移性质的隐式拟 模型,给出了超临界CO2 热力性质及迁 移性质的隐式拟 、显式计算方法.该方法能够保证超临界区热力性质计算的可逆性、高速性和绝 对稳定性.以REFPROP 7 的计算结果作为数据源, 对超临界CO2 热力性质及迁移性质在温度 304.13～393.15 K, 压力7.377～12.0 MPa 作了隐式拟 , 给出了各 个热力性质及迁移性质对应 的显式快速计算公式,其计算速度比REFPROP 7 程序的计算速度平均提高了2 个数量级,并且平 均误差在 1.8%以内. :二氧化碳;超临界;快速计算;基准线 :TB 65　　　:A Fast Calculat ion Met hod on Thermodynamic and Transport Propert ies for Supercrit ical CO2 Z HA ODan, 　WU Zhi-gang , 　DI N G Guo-liang (Institute of Refrigerant Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China) Abst ract :An i plicit odel together with a novel i plicit-regress and explicit-calculation fast calculation ethod for supercritical CO2 ther odyna ic and transport properties was presented.The novel ethod can guarantee the calculation reversibility, high calculation speed and calculation stability of the ther ody- na ic properties of supercritical CO2 .The source data is calculated fro REFPROP 7.With the i plicit- regress and explicit-calculation fast calculation ethod, fast calculation for ulae for ther al properties of supercritical CO2 , covering the te perature of 304.13 ～393.15 K and the pressure of 7.377～12.0 MPa, are presented.The co parison result shows that the calculation speed of the fast calculation for ulae is two orders faster than that of REFPROP 7 and the ean relative deviation of the fast calculation for ulae is within 1.8 %. Key words:carbon dioxide;supercritical;fast calculation;datu line 　　CO2 ( CO2 , R22 )(R134a、R410A ) ,CO2 , CO2 [1] . . :2007-12-01 :;(20050248019) :