Dynamic simulation of fluids in vessels via entropy maximization

Castier, Marcelo

doi:10.1016/j.jiec.2010.01.007

Cited by 17 publications

(4 citation statements)

References 25 publications

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“…This algorithm is used in Castier 12 to simulate vessels with various fluid mixtures. In Arendsen and Versteeg, 13 the UV n n n formulation is used to simulate a liquefied gas tank with a propane-butane mixture.…”

Section: Introductionmentioning

confidence: 99%

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Solution of the Span–Wagner Equation of State Using a Density–Energy State Function for Fluid-Dynamic Simulation of Carbon Dioxide

Giljarhus

Munkejord

Skaugen

2011

Ind. Eng. Chem. Res.

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With the introduction of carbon capture and storage (CCS) as a means to reduce carbon emissions, a need has arisen for accurate and efficient simulation tools. In this work, we propose a method for dynamic simulations of carbon dioxide using the Span-Wagner reference equation of state. The simulations are based on using the density and internal energy as states, which is a formulation naturally resulting from mass and energy balances. The proposed numerical method uses information about saturation lines to choose between single-phase and two-phase equation systems, and is capable of handling phase transitions. To illustrate the potential of the method, it is applied to simulations of tank depressurization, and to fluid-dynamic simulations of pipe transport.

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Section: Introductionmentioning

confidence: 99%

“…In the work of Castier, an optimization algorithm is used to maximize the entropy directly. This algorithm is used in Castier’s work to simulate vessels with various fluid mixtures. In the report by Arendsen and Versteeg, the UV n formulation is used to simulate a liquefied gas tank with a propane–butane mixture.…”

Section: Introductionmentioning

confidence: 99%

Solution of the Span–Wagner Equation of State Using a Density–Energy State Function for Fluid-Dynamic Simulation of Carbon Dioxide

Giljarhus

Munkejord

Skaugen

2011

Ind. Eng. Chem. Res.

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“…Vapor-liquid equilibrium constrained mass and energy conservation models also occur for a number of subsurface flow processes related to CO 2 sequestration (Stauffer et al, 2009), magmatic hydrothermal flow (Ingebritsen et al, 2010), and production of oil from an oil reservoir (Li and Johns, 2006;Lucia et al, 2012;Zaydullin et al, 2014). The UV flash is a single stage vapor-liquid equilibrium process and is thus a key component in rigorous modeling of fluid vessels and flash drums (Arendsen and Versteeg, 2009;Castier, 2010;Lima et al, 2008), distillation columns (Flatby et al, 1994), two-phase computational fluid dynamical problems (Qiu et al, 2014), and thermal and compositional oil reservoir flow (Zaydullin et al, 2014). While advanced algorithms for robust simulation of the UV flash problem exist (Castier, 2009;Saha and Carroll, 1997), no algorithm for dynamic optimization of UV flash processes seems to exist in the open literature.…”

Section: Introductionmentioning

confidence: 99%

An algorithm for gradient-based dynamic optimization of UV flash processes

Ritschel

Capolei

Gáspár

et al. 2018

Computers & Chemical Engineering

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“…The UV flash is a key component in rigorous models of dynamic phase equilibrium processes. The UV flash has been used to model flash separation [18]- [20], distillation [21], and computational fluid dynamical processes [22], [23] . It is possible to formulate the UV flash problem as an equality-constrained optimization problem [24].…”

Section: Introductionmentioning

confidence: 99%