Study on Calculation of PVT Properties of CO2 in Supercritical States
- 10.2991/icaemt-15.2015.174How to use a DOI?
- equation of state, carbon dioxide, supercritical state, thermodynamic properties, calculation.
In this paper, two equations of state, Exp-RK and 81-type Martin-Hou, were chosen and adopted to calculate P-V-T properties of CO2 in supercritical conditions, and the deviations of calculated pressure values from reference values are presented. The mean deviations of Exp-RK equation and 81-type Martin-Hou equation are 2.16% and 2.11% respectively, and the maximum deviations are 12.4% and -3.39% respectively. Study shows that the two equations are both applicable to the calculation of P-V-T properties of carbon dioxide in supercritical states. 81-type Martin-Hou has higher accuracy for the calculation of P-V-T properties in whole region and Exp-RK equation, a cubic equation of state, is simpler and more convenient for calculation of supercritical CO2 for engineering purposes.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Hui Liu PY - 2015/08 DA - 2015/08 TI - Study on Calculation of PVT Properties of CO2 in Supercritical States BT - Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology PB - Atlantis Press SP - 920 EP - 924 SN - 2352-5401 UR - https://doi.org/10.2991/icaemt-15.2015.174 DO - 10.2991/icaemt-15.2015.174 ID - Liu2015/08 ER -