Σύγκριση μεθόδων

	Ανάλυση Pinch	Εξίσωση καταστάσεως Peng-Robinson
Πεδίο	Εφαρμοσμένη Φυσική	Εφαρμοσμένη Φυσική
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1978	1976
Δημιουργός	Bodo Linnhoff, John Flower	Ding-Yu Peng and David Bernard Robinson
Τύπος	Thermal design and optimization method	Equation of state; thermodynamic property correlation
Θεμελιώδης πηγή	Linnhoff, B., & Flower, J. R. (1978). Synthesis of heat exchanger networks: I. Systematic generation of energy optimal networks. AIChE Journal, 24(4), 633-642.	Peng, D. Y., & Robinson, D. B. (1976). A new two-constant equation of state. Industrial & Engineering Chemistry Fundamentals, 15(1), 59-64.
Εναλλακτικές ονομασίες	heat integration, pinch point method, process integration	PR-EOS, Peng-Robinson model
Συναφείς	4	4
Σύνοψη	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.