A CFD study of the effects of combined impurities, ground temperature, and topography upon the consequence distances and plume shapes generated by CO2 release from CCS pipeline failure

Li, Zilun; Gao, Yong; Liu, Xiong; You, Zhanping; Han, Peng

doi:10.1007/s11356-022-24419-1

Cited by 3 publications

(4 citation statements)

References 40 publications

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“…This oversight could potentially result in inaccurate predictions of CD. Focusing on this aspect, Li et al 122 conducted simulations that specifically examined the heat exchange between carbon dioxide and ground and its impact on the dispersion. The research findings indicated that an increase in ground temperature reduces the size of ground plumes.…”

Section: Numerical Simulationmentioning

confidence: 99%

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Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

Shang,

Chen,

Yang

et al. 2024

Energy Fuels

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The leakage of carbon dioxide pipelines may result in significant incidents, such as fracture expansion, harm to humans and animals, and the loss of transported substances. Therefore, it is essential for us to accurately explain the processes of leakage and diffusion in carbon dioxide pipelines. Initially, this paper introduces the hazards of carbon dioxide leakage and the physical processes involved in such incidents. Subsequently, it systematically reviews recent research involving experiments and numerical simulations of carbon dioxide pipeline leakage at the entire process, including the in-pipe depressurization process, the near-field jetting process, and the far-field diffusion process. Moreover, it specifically discusses the differences in leakage processes between buried and overhead pipelines, highlighting the distinctive appearance resulting from leaks in buried pipelines. The Span-Wagner (SW) equation of state was found to accurately predict the thermodynamic behaviors of carbon dioxide during the entire process of pure carbon dioxide leakage and diffusion. Conversely, the GERG-2008 equation of state is better suited for carbon dioxide with impurities. Additionally, Homogenous Relaxation Model (HRM) and Delay Homogeneous Equilibrium Model (DHEM) have provided more precise predictions of carbon dioxide leakage and diffusion processes compared to the Homogeneous Equilibrium Model (HEM). The Computational Fluid Dynamics (CFD) model, in comparison to simplified models like Process Hazard Analysis Software Tool (PHAST), can better account for complex terrains, specific environmental conditions, and the impact of nearby structures or other obstacles on the carbon dioxide diffusion process. Its prediction aligns more closely with the actual results. However, research on buried carbon dioxide pipelines is still in its infancy, with only preliminary insights available at this time. Finally, this paper summarizes the research deficiencies on the leakage characteristics and diffusion laws of carbon dioxide pipelines, while providing a perspective on future research possibilities.

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Section: Numerical Simulationmentioning

confidence: 99%

Section: Far-field Diffusion Processmentioning

confidence: 99%

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

Shang,

Chen,

Yang

et al. 2024

Energy Fuels

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“…Liu et al. 24–26 developed a multiphase CFD model to investigate the decompression process of high‐pressure CO 2 pipeline after a rupture. By comparing measured and predicted decompression wave speeds and considering the phase transition “time relaxation factor,” their findings highlighted the significant impact of non‐equilibrium phase transition on decompression wave speed.…”

Section: Introductionmentioning

confidence: 99%

“…Teng et al 23 demonstrated that accounting for the deviations in decompression wave speed in the low-pressure zones of gaseous CO 2 pipelines during CFD simulations led to an excellently accurate prediction model for pure CO 2 pipeline ruptures. Liu et al [24][25][26] developed a multiphase CFD model to investigate the decompression process of high-pressure CO 2 pipeline after a rupture. By comparing measured and predicted decompression wave speeds and considering the phase transition "time relaxation factor," their findings highlighted the significant impact of non-equilibrium phase transition on decompression wave speed.…”

mentioning

confidence: 99%

A study on decompression wave propagation characteristics during CO₂ pipeline leakage with consideration of gas‐liquid transition

Bin,

Kaixuan,

Zhipeng

et al. 2024

Greenhouse Gases

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Pipelines stand as the most cost‐effective method for large‐scale transportation of CO2 from a source point to the storage site, especially over extensive distances. The potential for crack propagation following a pipeline rupture highlights the need for precise analysis of decompression wave propagation. To accurately model this, understanding the decompression wave's propagation laws becomes imperative. Although previous studies have predominantly focused on pipeline leaks within the dense phase or supercritical state, the transition from liquid to gas during leakage significantly affects the decompression wave propagation. When a gaseous CO2 pipeline ruptures, the high Joule‐–Thomson coefficient causes a swift temperature plunge, potentially leading to a gas–liquid transition. However, research on how this phase transition impacts the decompression wave characteristics is limited. To address this gap, this study proposes a transition computational fluid dynamics model to predict the decompression wave behavior. The model is validated with an industrial‐scale full‐bore rupture experiment. The results reveal that the gaseous CO2 leakage induces a pressure plateau at a certain distance from the leakage due to the gas‐liquid phase transition. The influences of initial conditions on this pressure plateau and decompression wave are also explored. This study provides valuable insights into understanding the decompression wave behaviors of gaseous CO2 pipelines, which are essential for ensuring the safety and reliability of CO2 transportation within the carbon capture and storage technology chain. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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A New Model for Predicting Characteristics of the Near-Field Leakage in High-pressure CO2 Pipelines

Shang,

Chen,

et al. 2024

Journal of Pipeline Science and Engineering

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A CFD study of the effects of combined impurities, ground temperature, and topography upon the consequence distances and plume shapes generated by CO2 release from CCS pipeline failure

Cited by 3 publications

References 40 publications

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

A study on decompression wave propagation characteristics during CO₂ pipeline leakage with consideration of gas‐liquid transition

A New Model for Predicting Characteristics of the Near-Field Leakage in High-pressure CO2 Pipelines

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A CFD study of the effects of combined impurities, ground temperature, and topography upon the consequence distances and plume shapes generated by CO2 release from CCS pipeline failure

Cited by 3 publications

References 40 publications

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

Comprehensive Review on Leakage Characteristics and Diffusion Laws of Carbon Dioxide Pipelines

A study on decompression wave propagation characteristics during CO2 pipeline leakage with consideration of gas‐liquid transition

A New Model for Predicting Characteristics of the Near-Field Leakage in High-pressure CO2 Pipelines

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Product

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A study on decompression wave propagation characteristics during CO₂ pipeline leakage with consideration of gas‐liquid transition