A numerical blowdown simulation incorporating cubic equations of state

Mahgerefteh, H; Wong, Shan M.A

doi:10.1016/s0098-1354(99)00296-3

Cited by 40 publications

(33 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To date, the majority of the pipeline outflow models reported in the literature have utilised the homogeneous equilibrium model (HEM) Mahgerefteh and Wong, 1999;Popescu, 2009;Webber et al, 1999) where the constituent fluid phases are assumed to remain in thermal and mechanical equilibrium during the decompression process.…”

Section: Modelling Approachmentioning

confidence: 99%

An integrated, multi-scale modelling approach for the simulation of multiphase dispersion from accidental CO2 pipeline releases in realistic terrain

Woolley

Fairweather

Wareing

et al. 2014

International Journal of Greenhouse Gas Control

View full text Add to dashboard Cite

The deployment of a complete carbon capture and storage chain requires a focus upon the hazards posed by the operation of pipelines transporting carbon dioxide (CO 2 ) at high pressure in a dense-phase (supercritical or liquid state). The consequences of an intentional or accidental release from such pipelines must be considered as an integral part of the design process. There are a number of unique challenges to modelling these releases due to the unusual phase-transition behaviour of CO 2 . Additionally, few experimental observations of large-scale CO 2 releases have been made, and the physics and thermochemistry involved are not fully understood. This work provides an overview of elements of the EC FP7CO2PipeHaz project, whose overall aim is to address these important and pressing issues, and to develop and validate mathematical models for multiphase discharge and dispersion from CO 2 pipelines. These are demonstrated here upon a full-scale pipeline release scenario, in which dense-phase CO 2 is released from a full-bore 36-inch pipeline rupture into a crater, and the resulting multiphase CO 2 plume disperses over complex terrain, featuring hills and valleys. This demonstration case is specifically designed to illustrate the integration of different models for the pipeline outflow, near-field and far-field dispersion.

show abstract

Section: Modelling Approachmentioning

confidence: 99%

An integrated, multi-scale modelling approach for the simulation of multiphase dispersion from accidental CO2 pipeline releases in realistic terrain

Woolley

Fairweather

Wareing

et al. 2014

International Journal of Greenhouse Gas Control

View full text Add to dashboard Cite

show abstract

“…during blowdown was reported by Haque et al 1992a and Ž . later extended by Mahgerefteh and Wong 1999 . However, although extensively validated against experimental data, the simulation is limited to blowdown under ambient surroundings only.…”

Section: Introductionmentioning

confidence: 98%

“…Mahgerefteh and Wong, 1999 . Should the wall temperature fall below the ductile-brittle transition temperature of the vessel wall material, rupture is likely to occur.…”

Section: Introductionmentioning

confidence: 99%

Modeling blowdown of cylindrical vessels under fire attack

2002

Self Cite

View full text Add to dashboard Cite

“…Due to the growing importance of this practical problem, several programs for the simulation of leaks and venting from pressure vessels exist (Woodward and Mudan, 1990;Bendiksen et al, 1991;Haque et al, 1992aHaque et al, , 1992bRichardson and Saville, 1996;Mahgerefteh and Wong, 1999;Cumber, 2001;Witlox and Bowen, 2002;Renfro et al, 2014;D'Alessandro et al, 2015). In order to simplify the formulation and shorten their execution time, some of them use approximations, such as that of ideal gas behavior, that increase the uncertainty of their predictions.…”

Section: Introductionmentioning

confidence: 99%

“…In order to simplify the formulation and shorten their execution time, some of them use approximations, such as that of ideal gas behavior, that increase the uncertainty of their predictions. Other papers account for deviations from ideal gas behavior as, for example, those of Haque et al (1992aHaque et al ( , 1992b and Richardson and Saville (1996), who used a proprietary computer package for physical properties called PREPROP, and of Mahgerefteh and Wong (1999), who used cubic equations of state. Another approximation occasionally used is that the chemical components can be lumped into a single pseudo-component; however, the composition of the vented fluid and of the fluid inside the vessel can vary significantly during a simulated period.…”

Section: Introductionmentioning

confidence: 99%

Discharge of Non-Reactive Fluids from Vessels

Castier

Basha

Kanes

et al. 2017

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-This paper presents simulations of discharges from pressure vessels that consistently account for non-ideal fluid behavior in all the required thermodynamic properties and individually considers all the chemical components present. The underlying assumption is that phase equilibrium occurs instantaneously inside the vessel and, thus, the dynamics of the fluid in the vessel comprises a sequence of equilibrium states. The formulation leads to a system of differential-algebraic equations in which the component mass balances and the energy balance are ordinary differential equations. The algebraic equations account for the phase equilibrium conditions inside the vessel and at the discharge point, and for sound speed calculations. The simulator allows detailed predictions of the condition inside the vessel and at the discharge point as a function of time, including the flow rate and composition of the discharge. The paper presents conceptual applications of the simulator to predict the effect of leaks from vessels containing mixtures of light gases and/or hydrocarbons and comparisons to experimental data.

show abstract

A numerical blowdown simulation incorporating cubic equations of state

Cited by 40 publications

References 9 publications

An integrated, multi-scale modelling approach for the simulation of multiphase dispersion from accidental CO2 pipeline releases in realistic terrain

An integrated, multi-scale modelling approach for the simulation of multiphase dispersion from accidental CO2 pipeline releases in realistic terrain

Modeling blowdown of cylindrical vessels under fire attack

Discharge of Non-Reactive Fluids from Vessels

Contact Info

Product

Resources

About