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On the Theory of Methane Hydrate Decomposition in a One- Dimensional Model in Porous Sediments: Numerical Studyстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Abu-Nab Ahmed K., Koldoba Alexander V., Koldoba Elena V., Poveshchenko Yury A., Podryga Viktoriia O., Rahimly Parvin I., Bakeer Ahmed E.
- Журнал: Mathematics
- Том: 11
- Номер: 2
- Год издания: 2023
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 1
- Последняя страница: 22
- Номер статьи: 341
- Аннотация: The purpose of this paper is to present a one-dimensional model that simulates the thermophysicalprocesses for methane hydrate decomposition in porous media. The mathematical modelconsists of equations for the conservation of energy, gas, and liquid as well as the thermodynamicequilibrium equation for temperature and pressure (P T) in the hydrate stability region. Thedeveloped model is solved numerically by using the implicit finite difference technique on thegrid system, which correctly describes the appearance of phase, latency, and boundary conditions.The Newton–Raphson method was employed to solve a system of nonlinear algebraic equationsafter defining and preparing the Jacobean matrix. Additionally, the proposed model describes thedecomposition of methane hydrate by thermal catalysis of the components that make up the mediumthrough multiple phases in porous media. In addition, the effect of thermodynamic processesduring the hydrate decomposition on the pore saturation rate with hydrates a7nd water duringdifferent time periods was studied in a one-dimensional model. Finally, in a one-dimensional modelover various time intervals, t = 1, 10, 50 s, the pressure and temperature distributions during thedecomposition of methane hydrates are introduced and investigated. The obtained results includemore accurate solutions and are consistent with previous models based on the analysis of simulationsand system stability.Keywords: methane hydr
- Добавил в систему: Колдоба Елена Валентиновна