مقایسهٔ روشها
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| معادله حالت پنگ-رابینسون× | مدل راکتور جریان مسدودی (PFR)× | |
|---|---|---|
| حوزه | فیزیک کاربردی | فیزیک کاربردی |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 1976 | 1962 |
| پدیدآور≠ | Ding-Yu Peng and David Bernard Robinson | Octave Levenspiel |
| نوع≠ | Equation of state; thermodynamic property correlation | Mathematical model for plug-flow reactor |
| منبع بنیادین≠ | Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64. DOI ↗ | Levenspiel, O. (1999). Chemical Reaction Engineering (3rd ed.). John Wiley & Sons. ISBN: 978-0-471-25424-9 |
| نامهای دیگر≠ | PR-EOS, Peng-Robinson model | ideal tubular reactor, plug-flow model, PFR |
| مرتبط≠ | 4 | 3 |
| خلاصه≠ | The Peng-Robinson equation of state is a cubic model that describes the thermodynamic properties of pure fluids and mixtures. Introduced by Ding-Yu Peng and David Bernard Robinson in 1976, it improves upon earlier models (van der Waals, Redlich-Kwong) by better predicting compressibility factors and phase equilibria, especially near the critical point. It is widely used in petroleum engineering, chemical process design, and natural gas calculations. | The PFR (Plug Flow Reactor) model describes the behavior of a tubular reactor in which fluid elements move through as distinct plugs with no axial mixing. Fluid at the inlet is freshly unreacted; as it travels downstream, reactions progress. This idealized model, formalized by Octave Levenspiel alongside CSTR theory, is the opposite extreme: while CSTRs are fully mixed, PFRs have no axial mixing. In practice, PFRs achieve higher conversion than CSTRs for the same residence time and are widely used in the chemical and petroleum industries. |
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