Investigation of terrain effects on the consequence distance of CO 2 released from high-pressure pipelines

Liu, Xiong; Godbole, Ajit R; Lü, Cheng; Michal, Guillaume

doi:10.1016/j.ijggc.2017.10.009

Cited by 14 publications

(9 citation statements)

References 32 publications

(40 reference statements)

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“…The CFX code was sensitive to the source condition, while FLACS was sensitive to solid CO 2 particle size. Liu et al [65] presented a CFD model to predict the atmospheric dispersion of CO 2 over complex terrains. ANSYS Fluent was used to carry out the simulations.…”

Section: Cfd Modelsmentioning

confidence: 99%

Risks and Safety of CO2 Transport via Pipeline: A Review of Risk Analysis and Modeling Approaches for Accidental Releases

et al. 2021

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Carbon capture and storage is considered an effective mitigation strategy to reduce the most challenging emissions from heavy industries and gas processing. The safe transport of carbon dioxide via pipelines is an important aspect for developing large-scale Carbon Capture and Storage projects. Dispersion modeling for heavy gas such as carbon dioxide is considerably different from natural gas. The set up for modeling simulations is more challenging than conventional natural gas pipeline for several reasons, such as the differences in thermodynamics that must be considered. Moreover, when the carbon dioxide is transported in dense or liquid phase, the rapid phase changing, and possible consequent formation of solids should be considered. Finally, the equation of state required for accurate prediction of parameters is generally different than the ones applicable for natural gas. The main scope of this comprehensive review is to identify the most important parameters, critical events, suitable models, and identification of dispersion modeling issues. An extensive literature review of experiments conducted in the last ten years has been developed, experimental data, integral and simplified model, as well as CFD modeling issues has been identified and reported in the work proposed to highlight the advances and the gaps that could need further research activities.

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Section: Cfd Modelsmentioning

confidence: 99%

Risks and Safety of CO2 Transport via Pipeline: A Review of Risk Analysis and Modeling Approaches for Accidental Releases

et al. 2021

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“…Hypothesising probabilities and consequences in the georisk sector is a far more contentious exercise than in the transportation sector where there are well-documented accident reports, case histories, and detailed autopsies (Barros et al, 2012). This said, risk assessment of leakage of CO 2 from pipelines can be a non-trial task; for example, recent research demonstrates the importance of ground topology in the vicinity of a release event (Liu et al, 2017).…”

Section: Leakage During Transportationmentioning

confidence: 99%

Potential technical hazards associated with four North American carbon capture and sequestration projects

Sarkarfarshi

Ladubec

Gracie

et al. 2019

IJRAM

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Carbon capture and storage (CCS) risks depend upon the site geology, potential CO 2 -caprock reactions, anthropogenic pathways (legacy wellbores), and well construction and operation. Herein, we assess the major risks, termed 'georisks', acknowledging that quantitative description must be site-specific, although pathway impact generalisations are possible. We discuss geological and pathway issues to guide general site selection practices to reduce georisks. Events that trigger hazards and the consequences are presented for leakage, low storage capacity/injectivity, the release of hazardous gases and materials, surface uplift, and Induced seismicity. A supplementary literature-sourced hazard tabulation was developed with focus on four largescale North American CCS projects (Quest Project, Weyburn Project, Project Pioneer and FutureGen). Each hazard is classified based on the project phase and trigger activity. The risks of CO 2 , brine, or other fluid leakage through wells (injection, monitoring, decommissioned legacy wells) remain uncertain, but legacy well gas leakage is common, rather than exceptional, despite modern cementing and completion practices.

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“…The model was corrected using measured CO2 values from experiments, but did not consider the change in temperature after CO2 leakage. Liu et al [4] developed a predictive model for heavy gas diffusion and expansion based on the P-R equation and the SST K-ω turbulence equation, but did not consider the transient phase or match experimental measurements well. Another study by Kang Li et al [5] developed a model that can predict the near-field multiphase flow dynamics and phase behavior after CO2 is released from a supercritical state, but did not consider suitable boundary conditions or match measured velocities well.…”

Section: Introdctionmentioning

confidence: 99%

Back Analysis of Pipeline Leakage Caliber Model Based on Supercritical Phase CO2 Hazard Distance

Yanwei¹,

Hu²,

Chen³

et al. 2023

Preprint

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Carbon neutralization is gaining increasing attention in various countries, and the risk of leakage is inevitable in the transport of captured CO 2 to storage. High pressure Carbon Dioxide (CO 2 ) pipeline transport is an important component of the Carbon Capture Utilization and Storage (CCUS) chain. Hence, accurate estimation of the leak caliber is an important component in determining the risk level when leakage happens. Carbon dioxide leaks are hazardous accidents, and accidental releases from pipeline transportation can lead to catastrophic damage. To ensure safety in the process of pipeline transportation, it is necessary to understand the impact of different leak sizes on the risk range after the occurrence of a pipeline failure. In this paper, a proposed model for estimation of pipe leak caliber based on back analysis through experimental and numerical studies. First establishes that the danger of CO 2 leakage from supercritical phase transport using a large pipe experiment (258 m long, internal diameter is 233 mm). Then a two-stage Computational Fluid Dynamics (CFD) model to predict different caliber supercritical phase CO 2 leakage ranges was proposed, and the CFD model was validated by experimental data. The error between numerical simulation values and experimental results is within 5%. The numerical model calculated the leakage ranges at different calibers, back analysis of the CO 2 concentration data, a model capable of predicting leakage caliber by leakage range is proposed. When a leakage accident of a pipe occurs, the leakage caliber is confirmed by this model, which provides a new method for determining the time of appearance of leakage.

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Investigation of terrain effects on the consequence distance of CO 2 released from high-pressure pipelines

Abstract: Investigation of terrain effects on the consequence distance of CO2 released Investigation of terrain effects on the consequence distance of CO2 released from high-pressure pipelines from high-pressure pipelines

Cited by 14 publications

References 32 publications

Risks and Safety of CO2 Transport via Pipeline: A Review of Risk Analysis and Modeling Approaches for Accidental Releases

Risks and Safety of CO2 Transport via Pipeline: A Review of Risk Analysis and Modeling Approaches for Accidental Releases

Potential technical hazards associated with four North American carbon capture and sequestration projects

Back Analysis of Pipeline Leakage Caliber Model Based on Supercritical Phase CO2 Hazard Distance

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