Modelling emergency isolation of carbon dioxide pipelines

作者：Mahgerefteh Haroun^*; Sundara Vikram; Brown Solomon; Martynov Sergey

来源：International Journal of Greenhouse Gas Control, 2016, 44: 88-93.

DOI：10.1016/j.ijggc.2015.11.001

• Multiphase flow
• CO2 pipeline safety
• ESDV modelling
• Pipeline flow

The development and experimental validation of a mathematical model for simulating the dynamic response of in-line Emergency Shutdown Valves (ESDVs) for high pressure Carbon Dioxide (CO2) transportation pipelines is presented. Based on the homogeneous flow assumption, the model accounts for the pertinent valve characteristics, including the activation and closure times, as well as its proximity to the rupture location. The validation of the model is based on the comparison of its predictions against measurements taken following the controlled Full Bore Rupture (FBR) of a 113-m long, 148 mm i.d. pipeline containing CO2 at 15.1 MPa and 300K, incorporating a ball valve along its length. The data recorded and simulated include the transient fluid temperatures and pressures immediately upstream and downstream of the closing valve following FBR. In all cases, very good agreement between the model predictions and recorded data is reported. Importantly, the minimum fluid temperature downstream of the closing valve is found to fall below the CO2 triple point indicating solid CO2 formation.

• 出版日期2016-1