== Abstract ==

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CO<jats:sub>2</jats:sub> solid phase formation accompanying rapid decompression of high-pressure CO<jats:sub>2</jats:sub> pipelines may lead to blockage of the flow and safety valves, presenting significant hazard for safe operation of the high-pressure CO<jats:sub>2</jats:sub> storage and transportation facilities. In this study, a homogeneous equilibrium flow model, accounting for conjugate heat transfer between the flow and the pipe wall, is applied to study the CO<jats:sub>2</jats:sub> solid formation in a 50 mm internal diameter and 37 m long pipe for various initial thermodynamic states of CO<jats:sub>2</jats:sub> fluid and wide range of discharge orifice diameters. The results show that the rate of CO<jats:sub>2</jats:sub> solid formation in the pipe is limited by heat transfer at the pipe wall. The predicted amounts of solid CO<jats:sub>2</jats:sub> are discussed in the context of venting of CO<jats:sub>2</jats:sub> pipelines.

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Document type: Article

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== Full document ==

<pdf>Media:Draft_Content_454778547-beopen5662-2963-document.pdf</pdf>

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== Original document ==

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

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* [https://www.matec-conferences.org/articles/matecconf/pdf/2018/99/matecconf_icchmt2018_01026.pdf https://www.matec-conferences.org/articles/matecconf/pdf/2018/99/matecconf_icchmt2018_01026.pdf] under the license https://creativecommons.org/licenses/by

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* [https://discovery.ucl.ac.uk/10064608 https://discovery.ucl.ac.uk/10064608],

: [https://academic.microsoft.com/#/detail/2903400240 https://academic.microsoft.com/#/detail/2903400240] under the license cc-by

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* [https://discovery.ucl.ac.uk/id/eprint/10064608 https://discovery.ucl.ac.uk/id/eprint/10064608],

: [https://discovery.ucl.ac.uk/id/eprint/10064608/1/matecconf_icchmt2018_01026.pdf https://discovery.ucl.ac.uk/id/eprint/10064608/1/matecconf_icchmt2018_01026.pdf]

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* [https://doi.org/10.1051/matecconf/201824001026 https://doi.org/10.1051/matecconf/201824001026],

: [https://doaj.org/toc/2261-236X https://doaj.org/toc/2261-236X]

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* [https://www.matec-conferences.org/10.1051/matecconf/201824001026/pdf https://www.matec-conferences.org/10.1051/matecconf/201824001026/pdf],

: [http://dx.doi.org/10.1051/matecconf/201824001026 http://dx.doi.org/10.1051/matecconf/201824001026]

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 under the license http://creativecommons.org/licenses/by/4.0

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