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Under-expanded jets and dispersion in high pressure CO₂ releases from an industrial scale pipeline

Guo, X; Yan, X; Zheng, Y; Yu, J; Zhang, Y; Chen, S; Chen, L; ... Brown, S; + view all (2017) Under-expanded jets and dispersion in high pressure CO₂ releases from an industrial scale pipeline. Energy , 119 pp. 53-66. 10.1016/j.energy.2016.12.048. Green open access

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Abstract

The widespread implementation of carbon capture and storage (CCS) in industry will require extensive long-distance CO₂ pipeline networks to integrate the component technologies. The potential for pipeline rupture and leakage, possibly resulting in catastrophic accidents, will inevitably increase as networks become more extensive. The study of near-field source terms and dispersion behavior after pipeline rupture is an essential foundation of CO₂ pipeline risk assessment and will provide effective technical support for the implementation of large-scale CCS projects and contribute to pipeline safety. In the CO₂QUEST project under-expanded CO₂ jets, cloud dispersion characteristics and the formation of dry ice particles in the near field were investigated during releases from a 258 m long, fully instrumented pipeline. Experimental data including cloud temperature, CO₂ concentration and the visual evolution of the cloud (recorded on film), was gathered to investigate cloud behavior and to support future work in the field of CO₂ pipeline safety. Experiments included the release of gaseous and dense phase CO₂ through three orifice diameters: 15 mm, 50 mm and Full Bore Rupture (FBR). The lower limit of gaseous CO₂ concentration for adverse effects in humans is 5% v/v. Safety distances from the release, based on this threshold concentration limit, are determined and reported for each experiment conducted.

Type: Article
Title: Under-expanded jets and dispersion in high pressure CO₂ releases from an industrial scale pipeline
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.energy.2016.12.048
Publisher version: http://doi.org/10.1016/j.energy.2016.12.048
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: CO₂ release; Under-expanded jet; Dispersion; Industrial scale pipeline
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1539359
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