Fast Calculation of the Soil Temperature Field around a Buried Oil Pipeline using a Body-Fitted Coordinates-Based POD-Galerkin Reduced-Order Model

Yu, Bo; Yu, Guojun; Cao, Zhizhu; Han, Dongxu; Shao, Qianqian

doi:10.1080/10407782.2013.756762

Cited by 16 publications

(7 citation statements)

References 13 publications

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“…Therefore, we selected pipeline diameter as an individual influencing factor of the thermally affected region and discussed its thermal influence in this section. Three kinds of oil pipes were adopted in the numerical simulation, including pipes with diameters of 355.6, 426, and 720 mm . These pipes are all used in actual buried crude oil pipelines in public references.…”

Section: Resultsmentioning

confidence: 99%

Numerical Study on the Optimal Thermally Affected Region of a Buried Oil Pipeline

Xie

Wei

et al. 2023

ACS Omega

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Crude oil pipeline transportation is usually a closed process under a certain depth of burial, and the condition of oil in the pipeline changes with the continuous decline of temperature during the transportation process. The safety and energy consumption of pipeline transportation are closely related to the accurate prediction of oil temperature. It is a popular technique to use the thermally affected region to overcome the problem of an unclosed calculation domain caused by the semi-infinite soil around the pipeline. However, there is no clear and unified guidance on the thermally affected region at present, and improper region size may lead to a loss of the accuracy of the pipeline system. Therefore, our study answers two questions about the optimal form of the thermally affected region and its economic scope of application. The coupled solution of heat transfer and flow in a tridimensional numerical model is carried out, and the thermodynamic influences of the geometric shape and range of the thermally affected region on the buried pipeline system are investigated. The results show that the rectangular region is more suitable for the modeling of buried oil pipelines, and a region with 16 m width and 9 m height is recommended for the conventional case.

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Section: Resultsmentioning

confidence: 99%

Numerical Study on the Optimal Thermally Affected Region of a Buried Oil Pipeline

Xie

Wei

et al. 2023

ACS Omega

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“…Ref. [14] only calculated the steady-state temperature field of one specific cross-section by reduced-order model and couldn't reflect the practical situations. In addition, the difference between steadystate model and unsteady-state model not only is the unsteady term, but involves the proper treatment of spatial derivative of Jacobi factor [15].…”

Section: Introductionmentioning

confidence: 99%

“…Ref. [14] used the BFC-based POD reduced-order model to establish the relationship between pipeline cross-sections and achieved the rapid calculation of temperature field with different pipeline diameter and buried depth.…”

Section: Introductionmentioning

confidence: 99%

Fast thermal simulation of a heated crude oil pipeline with a BFC-Based POD reduced-order model

Han

Wang

et al. 2015

Applied Thermal Engineering

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“…The probabilistic method is an effective method to deal with the problem mentioned above, which has been widely used in nuclear industry, − power system, , transportation, , and other fields. At present, there are two ways to study failure probability: historical data statistics and failure mechanism analysis.…”

Section: Introductionmentioning

confidence: 99%

“…From here, we can see that the traditional deterministic analysis method is difficult to describe the influence of parameter changes on the safety of the flow process, and it is unable to give a scientific and accurate description and evaluation on the safety of the operation of pipelines with low throughput. The probabilistic method is an effective method to deal with the problem mentioned above, which has been widely used in nuclear industry, 6−8 power system, 9,10 transportation, 11,12 and other fields. At present, there are two ways to study failure probability: historical data statistics and failure mechanism analysis.…”

Section: Introductionmentioning

confidence: 99%

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

Lei

Gao

et al. 2020

ACS Omega

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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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Fast Calculation of the Soil Temperature Field around a Buried Oil Pipeline using a Body-Fitted Coordinates-Based POD-Galerkin Reduced-Order Model

Cited by 16 publications

References 13 publications

Numerical Study on the Optimal Thermally Affected Region of a Buried Oil Pipeline

Numerical Study on the Optimal Thermally Affected Region of a Buried Oil Pipeline

Fast thermal simulation of a heated crude oil pipeline with a BFC-Based POD reduced-order model

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

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