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| Pinch analiza× | Peng-Robinsonova jednadžba stanja× | |
|---|---|---|
| Područje | Primijenjena fizika | Primijenjena fizika |
| Obitelj | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 1978 | 1976 |
| Tvorac≠ | Bodo Linnhoff, John Flower | Ding-Yu Peng and David Bernard Robinson |
| Vrsta≠ | Thermal design and optimization method | Equation of state; thermodynamic property correlation |
| Temeljni izvor≠ | Linnhoff, B., & Flower, J. R. (1978). Synthesis of heat exchanger networks: I. Systematic generation of energy optimal networks. AIChE Journal, 24(4), 633-642. DOI ↗ | Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64. DOI ↗ |
| Drugi nazivi≠ | heat integration, pinch point method, process integration | PR-EOS, Peng-Robinson model |
| Srodne | 4 | 4 |
| Sažetak≠ | Pinch analysis is a systematic method for identifying the minimum energy requirements and optimal heat recovery opportunities in chemical processes. Developed by Bodo Linnhoff and John Flower in 1978, it graphically identifies the 'pinch point'—the most constrained part of the process where heating and cooling demands nearly balance. By targeting these bottlenecks, engineers can design energy-efficient heat exchanger networks and reduce operating costs dramatically. | 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. |
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