Numerical modelling of non-equilibrium condensation of carbon dioxide (CO2) in a converging-diverging nozzle

Wen, Chuang; Zhu, Xiaowei; Yang, Yan; Ding, Hongbing; Yan, Yuying

Abstract

The condensing flow model is developed to predict the non-equilibrium condensation of CO2 in a converging-diverging nozzle using computational fluid dynamics modelling, which is expected to contribute to the carbon capture and storage. The numerical result shows that the nucleation process of CO2 occurs in the downstream of the nozzle throat where the extremely non-equilibrium state is reached, which generates the maximum value of the nucleation rate of approximately 2.5 x 1018 m"3 s"1. The excessive nucleation induces the growth of the condensed droplet and the liquid fraction increase in the diverging part of the supersonic nozzle with achieving 8% of the total mass at the nozzle exit.

Citation

Wen, C., Zhu, X., Yang, Y., Ding, H., & Yan, Y. (2019, September). Numerical modelling of non-equilibrium condensation of carbon dioxide (CO2) in a converging-diverging nozzle. Presented at International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2019), Rhodes, Greece

• Presentation Conference Type: Edited Proceedings
• Conference Name: International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2019)
• Start Date: Sep 23, 2019
• End Date: Sep 28, 2019
• Acceptance Date: Sep 30, 2020
• Online Publication Date: Nov 25, 2020
• Publication Date: Nov 25, 2020
• Deposit Date: Jan 25, 2021
• Publicly Available Date: Feb 10, 2021
• Volume: 2293
• Pages: 420077-1–420077-4
• Book Title: AIP Conference Proceedings 2293
• ISBN: 9780735440258
• DOI: https://doi.org/10.1063/5.0027863
• Public URL: https://nottingham-repository.worktribe.com/output/5269195
• Publisher URL: https://aip.scitation.org/doi/abs/10.1063/5.0027863