Scipediacontent: Scipediacontent moved page Draft Content 899205565 to Mahgerefteh et al 2015a

2021-01-28T19:53:27Z

Scipediacontent moved page Draft Content 899205565 to Mahgerefteh et al 2015a

Scipediacontent: Created page with " == Abstract == urate prediction of transient releases of CO2 fluid from high-pressure transportation pipelines is important for the hazard assessment of such pipelines and t..."

2021-01-28T19:53:23Z

Created page with " == Abstract == urate prediction of transient releases of CO2 fluid from high-pressure transportation pipelines is important for the hazard assessment of such pipelines and t..."

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== Abstract ==

urate prediction of transient releases of CO2 fluid from high-pressure transportation pipelines is important for the hazard assessment of such pipelines and the planning of their routine venting procedures. The accurate prediction of the fluid phase content, mass flow rate, pressure and temperature is key to the emergency response strategy or the vent pipe design, and is fundamental to the pipeline design and material selection for fracture control. Commonly to calculate releases of flashing fluids, such as hydrocarbons, from high-pressure vessels and pipelines, the simplifying assumption of a homogeneous equilibrium mixture (HEM) is applied. While this approach has proven to be robust for hydrocarbon mixtures, its validity is limited to inertia-dominant flows where the vapour and liquid-phases are well mixed. In the case of CO2 fluid, the widely different densities of the vapour and liquid phases can lead to phase stratification in the pipeline during its decompression. The fluid phase stratification creates phase slip and thermal nonequilibrium between the phases, significantly impacting the outflow rate. In this work, a two-fluid compressible flow model is used to investigate the impact of thermal non-equilibrium on transient CO2 pipeline decompression; the model predictions are compared with the results of simulations using HEM model as well as the experimental data on CO2 releases from a large-scale pipeline.

== Original document ==

The different versions of the original document can be found in:

* [http://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf http://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf]

* [http://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf http://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf],
: [http://dx.doi.org/10.2495/mpf150041 http://dx.doi.org/10.2495/mpf150041]

* [https://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf https://www.witpress.com/Secure/elibrary/papers/MPF15/MPF15004FU1.pdf],
: [https://www.witpress.com/elibrary/wit-transactions-on-engineering-sciences/89/33218 https://www.witpress.com/elibrary/wit-transactions-on-engineering-sciences/89/33218],
: [https://www.researchgate.net/profile/Solomon_Brown/publication/267026666_Modelling_heat_transfer_in_flashing_CO2_fluid_upon_rapid_decompression_in_pipelines/links/54413fa60cf2a76a3cc7d299.pdf?inViewer=true&pdfJsDownload=true&disableCoverPage=true&origin=publication_detail https://www.researchgate.net/profile/Solomon_Brown/publication/267026666_Modelling_heat_transfer_in_flashing_CO2_fluid_upon_rapid_decompression_in_pipelines/links/54413fa60cf2a76a3cc7d299.pdf?inViewer=true&pdfJsDownload=true&disableCoverPage=true&origin=publication_detail],
: [https://academic.microsoft.com/#/detail/2036394027 https://academic.microsoft.com/#/detail/2036394027]

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Mahgerefteh et al 2015a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 899205565 to Mahgerefteh et al 2015a

Scipediacontent: Created page with " == Abstract == urate prediction of transient releases of CO2 fluid from high-pressure transportation pipelines is important for the hazard assessment of such pipelines and t..."