Leak detection of hydrogen–natural gas mixtures in pipes using the characteristics method of specified time intervals

Elaoud, Sami; Taïeb, Lamjed Hadj; Hadj-Taïeb, Ezzeddine

doi:10.1016/j.jlp.2010.06.015

Cited by 49 publications

(24 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with eq[1] = Eq (20), eq [2] = Eq (21), ini = Eq (22), L is pipe length and h is pipe length partition size. Fig 4 shows a validation between the regression polynomials of pressure P(x) (Eq (23)) with the numerical results of Elaoud et al and Subani et al as presented in the references [7,23] for different values of mass ratio ϕ = 0, 0.5, 1.…”

Section: Solving Steady State Equationsmentioning

confidence: 88%

See 1 more Smart Citation

Controlling the pressure of hydrogen-natural gas mixture in an inclined pipeline

Chaharborj

Amin

2020

PLoS ONE

View full text Add to dashboard Cite

This paper discusses the optimal control of pressure using the zero-gradient control (ZGC) approach. It is applied for the first time in the study to control the optimal pressure of hydrogen natural gas mixture in an inclined pipeline. The solution to the flow problem is first validated with existing results using the Taylor series approximation, regression analysis and the Runge-Kutta method combined. The optimal pressure is then determined using ZGC where the optimal set points are calculated without having to solve the non-linear system of equations associated with the standard optimization problem. It is shown that the mass ratio is the more effective parameter compared to the initial pressure in controlling the maximum variation of pressure in a gas pipeline. OPEN ACCESSCitation: Chaharborj SS, Amin N (2020) Controlling the pressure of hydrogen-natural gas mixture in an inclined pipeline. PLoS ONE 15(2): e0228955.

show abstract

Section: Solving Steady State Equationsmentioning

confidence: 88%

“…Now, by using the approximation series (19) and regression polynomials (23) and (24) with coefficients from Table 3, we can solve the Eqs (2) [7] and the method of characteristics (MOC) presented by Elaoud at al. in the paper [23].…”

Section: Solving Eqs (2) and (3)mentioning

confidence: 94%

Controlling the pressure of hydrogen-natural gas mixture in an inclined pipeline

Chaharborj

Amin

2020

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Vankov, et al [9] used neural networks to analyze the vibrations in the pipe and identify defects. Elaoud, et al [10] studied the transient pressure waves caused by sudden closing of the downstream shut-off valve of the hydrogen-natural gas mixture pipeline by the characteristic method of the specified time interval. Hermansyah, et al [11] used event tree analysis to analyze the risk of gas pipeline leakage.…”

Section: Related Workmentioning

confidence: 99%

“…In the above model, Equations (8), (10) and 13are non-linear. Currently, methods for solving non-linear models include intelligent algorithms and coupling algorithms.…”

Section: Model Solvingmentioning

confidence: 99%

Study on Optimization of Active Control Schemes for Considering Transient Processes in the Case of Pipeline Leakage

Zhang

Shen

et al. 2020

Energies

View full text Add to dashboard Cite

Pipeline leakage of crude oil, refined oil or other petroleum derivatives can cause serious damage to the environment, soil, and more importantly, pose a serious threat to personal safety. The losses can be minimized to a degree by active control. Therefore, timely and effective control measures should be taken to minimize the leak volume whenever a pipeline leaks. However, the complexity of pipeline hydraulic systems makes it difficult to optimize control schemes for pipeline hydraulic devices under leak conditions, and existing studies rarely consider complex transient processes. This paper aims to establish a mixed integer linear programming model considering transient processes, hydraulic constraints, equipment constraints and flow constraints, and develop a detailed control scheme of the devices by the branch and bound algorithm. Moreover, it is the objective of the model to figure out the most optimal control plan to minimize the leakage. Experiments on a real-world liquid pipeline have proved the practicability and high reliability of the model.

show abstract

“…Alkhaledi et al [3] presented gas leak detection system called fault tree analysis and this technique identifies the exact point of leakage. Elaoud et al [4] developed an oil leakage detection technique which is based on transient negative pressure waves. Scott and Barrufet [5] developed a complex method which uses real-time transient model to detect the small pipes leakages.…”

Section: Introductionmentioning

confidence: 99%

Development and Testing of Intelligent Alcohol Transportation Security System

Msomi

Solomons

2018

Journal of Advanced Transportation

View full text Add to dashboard Cite

The development and testing of intelligent liquid transportation security system are being reported in this paper. The targeted fluid to be secured was ethanol alcohol and this was due to the theft cases occurring during the transportation of this product from the supplier to the customer. The system was developed such that only the radar level sensor (VEGAPULS 62) might be in contact with the fluid and the rest of the system remained outside the liquid carrying container to be secured. The system was developed such that it reports any abnormal liquid level drop through short message service (SMS). The functioning of the developed system was tested through the use of 1040 L Intermediate Bulk Container (IBC) filled with water which was hauled for about 1.5 km. The liquid theft was simulated and the system sent two SMS. The first SMS reported the beginning of water level drop and the second one reported the ending of water level drop. The second SMS reported the amount of liquid that was taken out of the container.

show abstract

Leak detection of hydrogen–natural gas mixtures in pipes using the characteristics method of specified time intervals

Cited by 49 publications

References 14 publications

Controlling the pressure of hydrogen-natural gas mixture in an inclined pipeline

Controlling the pressure of hydrogen-natural gas mixture in an inclined pipeline

Study on Optimization of Active Control Schemes for Considering Transient Processes in the Case of Pipeline Leakage

Development and Testing of Intelligent Alcohol Transportation Security System

Contact Info

Product

Resources

About