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Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method

[Image: see text] When the hot oil pipeline is running at a low throughput, it easily enters into an unstable condition, which seriously threatens the safety of the hot oil pipeline operation. In this study, the unsteady heat transfer and flow mathematical models for the hot oil pipeline system were...

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Autores principales: Yu, Pengfei, Lei, Yun, Gao, Yuming, Peng, Haoping, Deng, Song, Liu, Yang, Lv, Xiaofang, Zhao, Huijun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7774277/
https://www.ncbi.nlm.nih.gov/pubmed/33403296
http://dx.doi.org/10.1021/acsomega.0c05140
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author Yu, Pengfei
Lei, Yun
Gao, Yuming
Peng, Haoping
Deng, Song
Liu, Yang
Lv, Xiaofang
Zhao, Huijun
author_facet Yu, Pengfei
Lei, Yun
Gao, Yuming
Peng, Haoping
Deng, Song
Liu, Yang
Lv, Xiaofang
Zhao, Huijun
author_sort Yu, Pengfei
collection PubMed
description [Image: see text] When the hot oil pipeline is running at a low throughput, it easily enters into an unstable condition, which seriously threatens the safety of the hot oil pipeline operation. In this study, the unsteady heat transfer and flow mathematical models for the hot oil pipeline system were established first by comprehensively considering the uncertainty of parameters during pipeline operation, such as the operating parameters (throughput and oil temperature), physical properties of crude oil (freezing point, viscosity, and thixotropic parameters), and environmental parameters (buried deep soil temperature and soil thermal conductivity). Then, the efficient Latin hypercube sampling (LHS) stochastic numerical algorithm was applied and further developed to quantitatively describe the operation safety of hot oil pipelines with low throughput in the form of probability. On the basis of the abovementioned research, the qualitative relationship between pipeline flowrate and friction loss is obtained. Finally, taking an actual crude oil pipeline as an example, the failure probabilities of the pipeline under different operating conditions were analyzed in detail. Combined with the target safety level of pipeline operation, the minimum allowable throughput of pipelines was determined. This study revealed the flow and heat transfer law of hot oil pipelines with low throughput and determined its operation safety and reliability under different operating conditions.
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spelling pubmed-77742772021-01-04 Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method Yu, Pengfei Lei, Yun Gao, Yuming Peng, Haoping Deng, Song Liu, Yang Lv, Xiaofang Zhao, Huijun ACS Omega [Image: see text] When the hot oil pipeline is running at a low throughput, it easily enters into an unstable condition, which seriously threatens the safety of the hot oil pipeline operation. In this study, the unsteady heat transfer and flow mathematical models for the hot oil pipeline system were established first by comprehensively considering the uncertainty of parameters during pipeline operation, such as the operating parameters (throughput and oil temperature), physical properties of crude oil (freezing point, viscosity, and thixotropic parameters), and environmental parameters (buried deep soil temperature and soil thermal conductivity). Then, the efficient Latin hypercube sampling (LHS) stochastic numerical algorithm was applied and further developed to quantitatively describe the operation safety of hot oil pipelines with low throughput in the form of probability. On the basis of the abovementioned research, the qualitative relationship between pipeline flowrate and friction loss is obtained. Finally, taking an actual crude oil pipeline as an example, the failure probabilities of the pipeline under different operating conditions were analyzed in detail. Combined with the target safety level of pipeline operation, the minimum allowable throughput of pipelines was determined. This study revealed the flow and heat transfer law of hot oil pipelines with low throughput and determined its operation safety and reliability under different operating conditions. American Chemical Society 2020-12-16 /pmc/articles/PMC7774277/ /pubmed/33403296 http://dx.doi.org/10.1021/acsomega.0c05140 Text en © 2020 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Yu, Pengfei
Lei, Yun
Gao, Yuming
Peng, Haoping
Deng, Song
Liu, Yang
Lv, Xiaofang
Zhao, Huijun
Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title_full Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title_fullStr Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title_full_unstemmed Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title_short Study on the Operation Safety and Reliability of a Waxy Hot Oil Pipeline with Low Throughput Using the Probabilistic Method
title_sort study on the operation safety and reliability of a waxy hot oil pipeline with low throughput using the probabilistic method
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7774277/
https://www.ncbi.nlm.nih.gov/pubmed/33403296
http://dx.doi.org/10.1021/acsomega.0c05140
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