Version 1
: Received: 8 July 2018 / Approved: 9 July 2018 / Online: 9 July 2018 (14:03:19 CEST)
How to cite:
Arthur, M.; Asiedu, N. Y.; Bentum, E.; Abunde, F. Transient Modeling and Simulations with Ansys Flotran of Natural Gas in Pipelines. Preprints2018, 2018070150. https://doi.org/10.20944/preprints201807.0150.v1
Arthur, M.; Asiedu, N. Y.; Bentum, E.; Abunde, F. Transient Modeling and Simulations with Ansys Flotran of Natural Gas in Pipelines. Preprints 2018, 2018070150. https://doi.org/10.20944/preprints201807.0150.v1
Arthur, M.; Asiedu, N. Y.; Bentum, E.; Abunde, F. Transient Modeling and Simulations with Ansys Flotran of Natural Gas in Pipelines. Preprints2018, 2018070150. https://doi.org/10.20944/preprints201807.0150.v1
APA Style
Arthur, M., Asiedu, N. Y., Bentum, E., & Abunde, F. (2018). Transient Modeling and Simulations with Ansys Flotran of Natural Gas in Pipelines. Preprints. https://doi.org/10.20944/preprints201807.0150.v1
Chicago/Turabian Style
Arthur, M., Emmanuel Bentum and Fabrice Abunde. 2018 "Transient Modeling and Simulations with Ansys Flotran of Natural Gas in Pipelines" Preprints. https://doi.org/10.20944/preprints201807.0150.v1
Abstract
Transient analysis of gas flow in pipeline was studied. Finite Element Method based on ANSYS FLOTRAN was used to account for changes in pressure, temperature and flow rate. Compressibility factor function of temperature and pressure was considered. For non-isothermal transient results, the pressure and the flowrate gave wave propagation as a result of slow transients created by demand condition at the outlet end of custody transfer. Results obtained were in agreement with the demand restrictions at the outlet end of custody transfer indicating that the predictions are accurate and reliable. The results demonstrated that the Finite Element Method gave accurate prediction of pressure, temperature and flowrate in transient gas studies. For steady state non-isothermal model, results showed that the magnitude of the average pressure drop was higher when pressure was predicted with constant compressibility factor, but the same average pressure drop was reduced when the pressure was predicted with variable compressibility factor, z. Since compressibility factor is a function of temperature and pressure, the above findings signifies that in the case when gas temperature does not stabilize, the prediction of pressure with isothermal model and constant compressibility factor will lead to significant errors.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.