The accuracy and efficiency of a MATLAB-Simulink library for transient flow simulation of gas pipelines and networks

Behbahani–Nejad, Morteza; Bagheri, A.

doi:10.1016/j.petrol.2009.11.018

Cited by 68 publications

(41 citation statements)

References 11 publications

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“…For other types of the boundary conditions, following relations are derived. The simplified transfer functions (18) work well for conventional applications of natural gas pipelines and are widely used by others (Kralik et al, 1998;Reddy et al, 2006;Behbahani-Nejad and Bagheri, 2010).…”

Section: Flow Transfer Functionsmentioning

confidence: 99%

See 1 more Smart Citation

A state space model for transient flow simulation in natural gas pipelines

Alamian

Behbahani–Nejad

Ghanbarzadeh

2012

Journal of Natural Gas Science and Engineering

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Section: Flow Transfer Functionsmentioning

confidence: 99%

“…For known inlet gas flow rate and outlet gas pressure, the derived equations are as below Transfer function models are used by Reddy et al (2006), Gonzales et al (2009) andBagheri (2010). Although the answers by this method are good in comparison to other methods, this method cannot be applied to a complicated network.…”

Section: Flow Transfer Functionsmentioning

confidence: 99%

A state space model for transient flow simulation in natural gas pipelines

Alamian

Behbahani–Nejad

Ghanbarzadeh

2012

Journal of Natural Gas Science and Engineering

Self Cite

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“…Ibraheem and Adewumi [28], Zhou and Adewumi [29], Einfeldt [30] simulated transients in gas pipelines using FV methods. Herrán-González et al [31], Behbahani-Nejad and Bagheri [32] and Alamian [33] proposed gas transient flow simulations based on the state space equations, solved using a MATLAB-Simulink transfer function. Ke and Ti [34] extended an electrical analogy method to transient analysis of isothermal gas flows in a pipeline network.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Water Level Fluctuations in a Hydraulic System Using a Coupled Liquid-Gas Model

Wang

Yang

Nilsson

2015

Water

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Abstract:A model for simulating vertical water level fluctuations with coupled liquid and gas phases is presented. The Preissmann implicit scheme is used to linearize the governing equations for one-dimensional transient flow for both liquid and gas phases, and the linear system is solved using the chasing method. Some classical cases for single liquid and gas phase transients in pipelines and networks are studied to verify that the proposed methods are accurate and reliable. The implicit scheme is extended using a dynamic mesh to simulate the water level fluctuations in a U-tube and an open surge tank without consideration of the gas phase. Methods of coupling liquid and gas phases are presented and used for studying the transient process and interaction between the phases, for gas phase limited in a chamber and gas phase transported in a pipeline. In particular, two other simplified models, one neglecting the effect of the gas phase on the liquid phase and the other one coupling the liquid and gas phases asynchronously, are proposed. The numerical results indicate that the asynchronous model performs better, and are finally applied to a hydropower station with surge tanks and air shafts to simulate the water level fluctuations and air speed.

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“…Due to the fast dynamics, the power system (DAE) has to be simulated in a short time step. Considering time and space dependent characteristics of the gas network models (PDE system), the pipelines are usually simulated based on the finite difference scheme [24], which separates the pipeline into subsections. In order to get a consistent numerical scheme, the time step and space step should satisfy a link (c is the isothermal speed of sound (m/s)) [27].…”

Section: Two-time Scale Methodsmentioning

confidence: 99%

Dynamic Modeling and Interaction of Hybrid Natural Gas and Electricity Supply System in Microgrid

Jia

Chiang

et al. 2015

IEEE Trans. Power Syst.

140

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Natural gas (NG) network and electric network are becoming tightly integrated by microturbines in the microgrid. Interactions between these two networks are not well captured by the traditional microturbine (MT) models. To address this issue, two improved models for single-shaft MT and split-shaft MT are proposed in this paper. In addition, dynamic models of the hybrid natural gas and electricity system (HGES) are developed for the analysis of their interactions. Dynamic behaviors of natural gas in pipes are described by partial differential equations (PDEs), while the electric network is described by differential algebraic equations (DAEs). So the overall network is a typical two-time scale dynamic system. Numerical studies indicate that the two-time scale algorithm is faster and can capture the interactions between the two networks. The results also show the HGES with a single-shaft MT is a weakly coupled system in which disturbances in the two networks mainly influence the dc link voltage of the MT, while the split-shaft MT is a strongly coupled system where the impact of an event will affect both networks.Index Terms-Dynamic modeling, hybrid natural gas and electricity system (HGES), interaction, microgrid, microturbine (MT), natural gas network.

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The accuracy and efficiency of a MATLAB-Simulink library for transient flow simulation of gas pipelines and networks

Cited by 68 publications

References 11 publications

A state space model for transient flow simulation in natural gas pipelines

A state space model for transient flow simulation in natural gas pipelines

Simulation of Water Level Fluctuations in a Hydraulic System Using a Coupled Liquid-Gas Model

Dynamic Modeling and Interaction of Hybrid Natural Gas and Electricity Supply System in Microgrid

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