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Your search keyword '"dynamic simulation"' showing total 3 results
3 results on '"dynamic simulation"'

1. Dynamic Simulation of Snell's and Malus's Laws.

Author

Camacho-Mendoza, Luis J. and Racedo-Niebles, Francisco J.

Subjects
*DYNAMIC simulation, *OPTICAL polarization, *REFRACTION (Optics), *LIGHT propagation, *FREEWARE (Computer software)
Abstract

The present work shows the design of two simulations using free dynamic software that allows efficient modeling of the reflection, refraction and polarization of light. Specifically, the objective of the designed simulations is to verify computationally the laws of Snell and Malus, evaluating each one of the phenomena in an ideal way. These simulations were developed in GeoGebra computer software which allows the generation of dynamic designs referring to the nature and propagation of light. As a result, the numerical verification of each of the physical phenomena under study is shown, thus generating validity and reliability in the design of the simulations. [ABSTRACT FROM AUTHOR]

Published
2022
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2. MODELO INSUMO PRODUCTO DINÁMICO PARA UNA ECONOMÍA PEQUEÑA.

Author

Arón Fuentes, Noé and Martínez Pellégrini, Sarah

Subjects
*SMALL state economy, *ECONOMIC models, *DYNAMIC simulation, *DYNAMICAL systems, *COMPUTER simulation, *DIFFERENTIAL equations, *SAVINGS
Abstract

This article applies the Dynamic Simulation (DS) technique to the dynamic input-output model (DS/IO) designed by Johnson (1985 and 1986). The model is a generalization of the static input-output model (Leontief, 1941), with an additional emphasis on economic imbalance. The DS/IO consists of a system of 4n differential equations and 2n constraints. Therefore, attempts to model analytically are likely to be unsuccessful without numerical simulation. The DS/IO used data from the Mexican economy for calibration and validation. It was found that the dynamic multipliers are greater than the static multipliers due to the accelerator effect. The simulation of the DS/IO is also validated by the fact that the adjustment between current values and production projections from 2013 to 2019 is plausible. [ABSTRACT FROM AUTHOR]

Published
2021
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3. Análisis del control dinámico de un tren de destilación multicomponente del área de recuperación de solvente de una planta de polietileno lineal.

Author

Ramos Montero, Gustavo Enrique, Gutiérrez Mendoza, Charles Albert, and Marrufo Pachano, Beatriz María

Subjects
*STEAM flow, *DISTILLATION, *BINARY mixtures, *DYNAMIC simulation, *POLYETHYLENE
Abstract

This research provides the dynamic analysis of a distillation train, which instead of the traditional study of a binary mixture, this was carried out for a multicomponent mixture of the solvent recovery area of a linear polyethylene plant. This was done through a dynamic simulation in Aspen Plus®with the purpose of predicting the behavior of the operational variables (temperature, pressure, flow, level or composition) when an interruption of the feed flow occurs in the distillation area to model a reaction area shutdown, and then establish procedures that compensate for deviations in the controlled variables. Several thermodynamic methods were evaluated: Soave-Redlich-Kwong, Peng-Robinson, Lee-Kesler-Plock, Peng-Robinson-Boston-Mathias y Soave-Redlich-Kwong-Boston-Mathias; the SRKBM method was chosen, since it presents lower error percentages in most of the estimated properties. This rigorous comparison adds greater reliability to the values reported in the simulations. The results showed a destabilization of the level controllers of distillation columns A and B, in addition to an increase of approximately 14 °C in the temperature profile of column A. Column C did not show deviations from its operational variables. Finally, to stabilize the system, it was necessary to carry out three steps involving the switch to manual mode and changing the valve opening percentage of the column A steam flow controller (50%), the D-101separator pressure (50%) and the column B top flow controller (43%). [ABSTRACT FROM AUTHOR]

Published
2019
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