Estimating stray current interference from DC traction lines on buried pipelines by means of a Monte Carlo algorithm

Lucca, Giovanni

doi:10.1007/s00202-015-0333-6

Cited by 30 publications

(16 citation statements)

References 4 publications

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“…Current and potential along the pipeline located in an electric flow field (E(x) = -dV e /dx) due to stray currents can be calculated using a pipeline modeled as a circuit with lumped parameters [4,[7][8][9]15].…”

Section: Current and Potential Along A Pipeline Buried In The DC Stmentioning

confidence: 99%

“…influence electrical parameters (mutual conductance, series and shunt resistances, propagation coefficients) of the coupled earth return circuits. It is assumed in the paper, as in [7], that two stochastic quantities: locomotive position and a load current are most useful, as independent random variables characterized by suitable probability distribution, for the estimation of stochastic stray currents effects on affected pipelines.…”

Section: Incorporating Monte Carlo Proceduresmentioning

confidence: 99%

“…the Boundary Element Method [1,2,13] is an alternative to the approximate method in which the equivalent rail with current energization is modeled as a large multinode electrical equivalent circuit with lumped parameters. This circuit is a chain of basic circuits, which are equivalents of homogenous sections of the rail [3,4,7,9,14,15]. It should be pointed out, that the simulations presented by deterministic approach refer to the chosen point of time, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In reality flowing stray currents are stochastic in character, meaning that the current as well as the flow direction change at random. Different from the existing models, which are based on a deterministic approach, the paper [7] presents a non-deterministic approach to study of effects generated on buried pipelines located in stray currents area. The method bases on random and statistical aspects of stray current, which are captured by Monte Carlo approach.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of pipeline random response to stray currents effects produced by D.C. traction system

2018

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Simulation of pipeline random response to stray currents effects produced by d.c. traction system Symulacja losowej odpowiedzi rurociągu na prądy błądzące generowane przez trakcję elektryczną prądu stałego AbstractThe paper presents a method of the simulation of the pipeline potential shift produced by D.C. traction stray currents which are stochastic in character. The calculation model presented is based on the deterministic model used in the earth-return circuit theory combined with the non-deterministic approach based on the Monte Carlo procedure. The model of the equivalent rail with current energization and the concept of superposition allow one to consider more complicated D.C. railway systems using a segmental approximation of the complex railway route and taking into account a number of substations and loads at any location. A locomotive position and a load current are assumed to be independent random variables in the non-deterministic approach. Using simulation program developed random characteristics of a pipeline response e.g. maximum, minimum, median and mean values can be obtained. Hence the pipeline regions more exposed to corrosion risk can be determined.

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Section: Current and Potential Along A Pipeline Buried In The DC Stmentioning

confidence: 99%

Section: Incorporating Monte Carlo Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulation of pipeline random response to stray currents effects produced by D.C. traction system

2018

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“…DC stray current causes the fluctuations of pipeline potential and the required protective current to change greatly [3][4][5][6][7][8]. Therefore, it is necessary to make appropriate adjustments to the design of cathodic protection system with DC interference.…”

Section: Introductionmentioning

confidence: 99%

Study on the Electrochemical Performance of Sacrificial Anode Interfered by DC Stray Current

Shen

Cui

Xue

2018

International Journal of Corrosion

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The influence of sacrificial anode electrochemical properties interfered by direct stray current (DC) of 0 V, 1 V, 3 V, and 5 V, with different chloride ion concentration and temperature, was studied by open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and polarization curves. The specific performance was as follows: as the DC interference voltage increased from 0 V to 5 V, the degree of positive migration of the sacrificial anode open circuit potential increased. The effect of temperature in DC interference voltage environment on sacrificial anode corrosion was not great, but the low temperature of 10 ∘ C could slow down the sacrificial anode corrosion and maintain good work efficiency. With the increase of the ambient temperature, the degree of corrosion of the sacrificial anode was deepened. As the chloride ion concentration in DC interference voltage environment increased from 0% to 0.3%, the degree of positive migration of the sacrificial anode open circuit potential increased. The higher the chloride ion concentration was, the greater the impact on the performance of the sacrificial anode was.

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Effect of dynamic DC stray current on corrosion behavior of X70 steel

Qin

et al. 2019

Materials & Corrosion

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Corrosion behavior of X70 steel under the application of dynamic DC stray current was investigated in simulated soil solution by immersion tests and electrochemical measurements. Experimental results indicated that the corrosion rate of X70 steel under dynamic DC stray current was strongly influenced by the dynamic period. When the dynamic period was <80 s, the corrosion rate was only approximately 1–7% of that caused by an equivalent amount of steady direct current. However, as the dynamic period became >80 s, the corrosion rate increased significantly with the dynamic period. And finally when the dynamic period was >1 hr, the corrosion rate was nearly equal to 100% of that caused by an equivalent amount of steady direct current. Meanwhile, the surface examination showed that the specimens experienced uniform corrosion under the experimental conditions. On the basis of the experiment results, the dynamic DC stray current corrosion mechanism of X70 steel under the experimental conditions was discussed, which was closely related to the electric double‐layer structure at the electrode/solution interface and dynamic electrochemical reactions under dynamic stray current.

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Estimating stray current interference from DC traction lines on buried pipelines by means of a Monte Carlo algorithm

Cited by 30 publications

References 4 publications

Simulation of pipeline random response to stray currents effects produced by D.C. traction system

Simulation of pipeline random response to stray currents effects produced by D.C. traction system

Study on the Electrochemical Performance of Sacrificial Anode Interfered by DC Stray Current

Effect of dynamic DC stray current on corrosion behavior of X70 steel

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