เปรียบเทียบวิธี

	การวิเคราะห์พินช์	สมการสภาวะ Peng-Robinson
สาขาวิชา	ฟิสิกส์ประยุกต์	ฟิสิกส์ประยุกต์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1978	1976
ผู้ริเริ่ม	Bodo Linnhoff, John Flower	Ding-Yu Peng and David Bernard Robinson
ประเภท	Thermal design and optimization method	Equation of state; thermodynamic property correlation
แหล่งต้นตำรับ	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.
ชื่อเรียกอื่น	heat integration, pinch point method, process integration	PR-EOS, Peng-Robinson model
ที่เกี่ยวข้อง	4	4
สรุป	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.