Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline
Buried pipelines have been widely used to transport petroleum-based products over long distances in permafrost regions. Field observations reveal that they are endangered by rapid permafrost thawing and resulting massive soil movements, despite adopting some measures to protect pipeline foundation p...
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ftdoajarticles:oai:doaj.org/article:50c27bcaacb04640859f6f441d64b26e 2024-09-15T18:29:19+00:00 Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline Zhaoyu Chen Guoyu Li Wei Ma Yongting Huang Fei Wang Yanhu Mu Alexander Fedorov 2024-07-01T00:00:00Z https://doi.org/10.1016/j.csite.2024.104581 https://doaj.org/article/50c27bcaacb04640859f6f441d64b26e EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2214157X24006129 https://doaj.org/toc/2214-157X 2214-157X doi:10.1016/j.csite.2024.104581 https://doaj.org/article/50c27bcaacb04640859f6f441d64b26e Case Studies in Thermal Engineering, Vol 59, Iss , Pp 104581- (2024) Direct-buried warm pipeline Seasonal air-cooled embankment Permafrost thawing Thaw bulb Water migration Engineering (General). Civil engineering (General) TA1-2040 article 2024 ftdoajarticles https://doi.org/10.1016/j.csite.2024.104581 2024-08-05T17:49:15Z Buried pipelines have been widely used to transport petroleum-based products over long distances in permafrost regions. Field observations reveal that they are endangered by rapid permafrost thawing and resulting massive soil movements, despite adopting some measures to protect pipeline foundation permafrost. A new mitigation technique is proposed to slow down the permafrost thawing ulteriorly. With this technique, a seasonal air-cooled embankment (SACE), mainly composed of a crushed rock layer, supports the pipeline and transfers the heat from the pipeline to ambient air in the cold seasons. A scale model test with the controlled air and oil temperatures was carried out to evaluate the proposed measure. The temperature and volumetric unfrozen water content of the permafrost subgrade beneath both the SACE and the direct-buried pipeline, as well as ground surface displacements, were measured during the whole testing process. A comparison of the hydrothermal process of the subgrade permafrost under the SACE and the direct-buried warm pipeline indicates that the proposed measure can substantially mitigate the rapid thawing of permafrost by controlling the geothermal regimes of the pipeline. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Case Studies in Thermal Engineering 59 104581 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Direct-buried warm pipeline Seasonal air-cooled embankment Permafrost thawing Thaw bulb Water migration Engineering (General). Civil engineering (General) TA1-2040 |
spellingShingle |
Direct-buried warm pipeline Seasonal air-cooled embankment Permafrost thawing Thaw bulb Water migration Engineering (General). Civil engineering (General) TA1-2040 Zhaoyu Chen Guoyu Li Wei Ma Yongting Huang Fei Wang Yanhu Mu Alexander Fedorov Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
topic_facet |
Direct-buried warm pipeline Seasonal air-cooled embankment Permafrost thawing Thaw bulb Water migration Engineering (General). Civil engineering (General) TA1-2040 |
description |
Buried pipelines have been widely used to transport petroleum-based products over long distances in permafrost regions. Field observations reveal that they are endangered by rapid permafrost thawing and resulting massive soil movements, despite adopting some measures to protect pipeline foundation permafrost. A new mitigation technique is proposed to slow down the permafrost thawing ulteriorly. With this technique, a seasonal air-cooled embankment (SACE), mainly composed of a crushed rock layer, supports the pipeline and transfers the heat from the pipeline to ambient air in the cold seasons. A scale model test with the controlled air and oil temperatures was carried out to evaluate the proposed measure. The temperature and volumetric unfrozen water content of the permafrost subgrade beneath both the SACE and the direct-buried pipeline, as well as ground surface displacements, were measured during the whole testing process. A comparison of the hydrothermal process of the subgrade permafrost under the SACE and the direct-buried warm pipeline indicates that the proposed measure can substantially mitigate the rapid thawing of permafrost by controlling the geothermal regimes of the pipeline. |
format |
Article in Journal/Newspaper |
author |
Zhaoyu Chen Guoyu Li Wei Ma Yongting Huang Fei Wang Yanhu Mu Alexander Fedorov |
author_facet |
Zhaoyu Chen Guoyu Li Wei Ma Yongting Huang Fei Wang Yanhu Mu Alexander Fedorov |
author_sort |
Zhaoyu Chen |
title |
Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
title_short |
Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
title_full |
Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
title_fullStr |
Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
title_full_unstemmed |
Model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
title_sort |
model test on cooling performance of a new method for mitigating permafrost thaw around buried oil pipeline |
publisher |
Elsevier |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.csite.2024.104581 https://doaj.org/article/50c27bcaacb04640859f6f441d64b26e |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Case Studies in Thermal Engineering, Vol 59, Iss , Pp 104581- (2024) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2214157X24006129 https://doaj.org/toc/2214-157X 2214-157X doi:10.1016/j.csite.2024.104581 https://doaj.org/article/50c27bcaacb04640859f6f441d64b26e |
op_doi |
https://doi.org/10.1016/j.csite.2024.104581 |
container_title |
Case Studies in Thermal Engineering |
container_volume |
59 |
container_start_page |
104581 |
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1810470732871761920 |