中文摘要：

提出超临界CO2热力性质及迁移性质的隐式拟合模型，给出了超临界CO2热力性质及迁移性质的隐式拟合、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REFPROP7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304．13～393．15K，压力7．377～12．0MPa作了隐式拟合，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REFPROP7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．

英文摘要：

An implicit model together with a novel implicit-regress and explicit-calculation fast calculation method for supercritical CO2 thermodynamic and transport properties was presented. The novel method can guarantee the calculation reversibility, high calculation speed and calculation stability of the thermodynamic properties of supercritical CO2. The source data is calculated from REFPROP 7. With the implicitregress and explicit-calculation fast calculation method, fast calculation formulae for thermal properties of supercritical CO2, covering the temperature of 304. 13-393.15 K and the pressure of 7. 377-12.0 MPa, are presented. The comparison result shows that the calculation speed of the fast calculation formulae is two orders faster than that of REFPROP 7 and the mean relative deviation of the fast calculation formulae is within 1.8 %.