INFLUENCE OF THERMOPHYSICAL PROPERTIES EXTRAPOLATION, IN THE COURSE OF ITERATIVE CALCULATIONS, ON THE CONVERGENCE PATTERN OF A SIMULATION ALGORITHM-A GENERAL ANALYSIS

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概要

• 論文の詳細を見る

• An extrapolating model provides values for the thermophysical properties when infeasible specifications (either pressure or temperature) are recognized at a given iteration in a process simulator, applying an EOS technique. The model has a considerable effect on the convergence characteristics, accuracy and robustness of a higher-level simulation algorithm.The present paper outlines a general approach for evaluating and comparing the abilities of different extrapolation techniques: to promote the convergence of higher-level algorithms; to ensure for them a solution that is accurate and not significantly inferior to the actual one. The latter could have been obtained using for example a different thermodynamic model.The approach is based on the classical fixed-point theory and its connection with the contraction-mapping principle.

• 社団法人 化学工学会の論文
• 1992-06-20

著者

• Tsvetkov Stefan

  Institute Of Chemical Engineering Bulgarian Academy Of Sciences Acad.

• STATEVA Roumiana

  Institute of Chemical Engineering Bulgarian Academy of Sciences Acad.

関連論文

• INFLUENCE OF THERMOPHYSICAL PROPERTIES EXTRAPOLATION, IN THE COURSE OF ITERATIVE CALCULATIONS, ON THE CONVERGENCE PATTERN OF A SIMULATION ALGORITHM-A GENERAL ANALYSIS

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