Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline

Transportation safety of supercritical CO 2 pipeline is a key aspect of carbon capture and storage (CCS). For reducing the high pressure in supercritical pipeline when accidental cases arise, man-made release will be applied using chocking process. The downstream parameters of chocking process can b...

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Main Authors: Qing Zhao, Yuxing Li, Shunli Li
Format: Article
Language:English
Published: SAGE Publishing 2014-09-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1155/2014/253413
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spelling doaj-f6b6fe0ac335454898ec61e3a724061d2020-11-25T02:58:17ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322014-09-01610.1155/2014/25341310.1155_2014/253413Safety Control on the Chocking Process of Supercritical Carbon Dioxide PipelineQing ZhaoYuxing LiShunli LiTransportation safety of supercritical CO 2 pipeline is a key aspect of carbon capture and storage (CCS). For reducing the high pressure in supercritical pipeline when accidental cases arise, man-made release will be applied using chocking process. The downstream parameters of chocking process can be predicted based on the adiabatic process assumption. In the critical chocking process, the critical velocity at outlet is sonic. A chocking pipe can be designed for buffering between different chocking orifices according to the length of turbulence area produced by jetting momentum. For the effect of noise hazard produced by large jetting velocity, a muffler can be applied at the outlet of final stage orifice to atmosphere. For the influence of impurities on the chocking process of anthropogenic CO 2 pipeline, the presence of SO 2 as an impurity is helpful for increasing the downstream temperatures through the chocking device to prevent the frozen hazard, whereas the presence of N 2 as an impurity indicates a lower downstream temperature. The higher initial temperature can prevent the dry ice formation at the outlet of vent pipe when the multistage chocking is applied.https://doi.org/10.1155/2014/253413
collection DOAJ
language English
format Article
sources DOAJ
author Qing Zhao
Yuxing Li
Shunli Li
spellingShingle Qing Zhao
Yuxing Li
Shunli Li
Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
Advances in Mechanical Engineering
author_facet Qing Zhao
Yuxing Li
Shunli Li
author_sort Qing Zhao
title Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
title_short Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
title_full Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
title_fullStr Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
title_full_unstemmed Safety Control on the Chocking Process of Supercritical Carbon Dioxide Pipeline
title_sort safety control on the chocking process of supercritical carbon dioxide pipeline
publisher SAGE Publishing
series Advances in Mechanical Engineering
issn 1687-8132
publishDate 2014-09-01
description Transportation safety of supercritical CO 2 pipeline is a key aspect of carbon capture and storage (CCS). For reducing the high pressure in supercritical pipeline when accidental cases arise, man-made release will be applied using chocking process. The downstream parameters of chocking process can be predicted based on the adiabatic process assumption. In the critical chocking process, the critical velocity at outlet is sonic. A chocking pipe can be designed for buffering between different chocking orifices according to the length of turbulence area produced by jetting momentum. For the effect of noise hazard produced by large jetting velocity, a muffler can be applied at the outlet of final stage orifice to atmosphere. For the influence of impurities on the chocking process of anthropogenic CO 2 pipeline, the presence of SO 2 as an impurity is helpful for increasing the downstream temperatures through the chocking device to prevent the frozen hazard, whereas the presence of N 2 as an impurity indicates a lower downstream temperature. The higher initial temperature can prevent the dry ice formation at the outlet of vent pipe when the multistage chocking is applied.
url https://doi.org/10.1155/2014/253413
work_keys_str_mv AT qingzhao safetycontrolonthechockingprocessofsupercriticalcarbondioxidepipeline
AT yuxingli safetycontrolonthechockingprocessofsupercriticalcarbondioxidepipeline
AT shunlili safetycontrolonthechockingprocessofsupercriticalcarbondioxidepipeline
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