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| Pinch-analyysi× | CSTR-malli× | |
|---|---|---|
| Tieteenala | Sovellettu fysiikka | Sovellettu fysiikka |
| Menetelmäperhe | Process / pipeline | Process / pipeline |
| Syntyvuosi≠ | 1978 | 1962 |
| Kehittäjä≠ | Bodo Linnhoff, John Flower | Octave Levenspiel |
| Tyyppi≠ | Thermal design and optimization method | Mathematical model for continuous flow reactor |
| Alkuperäislähde≠ | 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 ↗ | Levenspiel, O. (1999). Chemical Reaction Engineering (3rd ed.). John Wiley & Sons. ISBN: 978-0-471-25424-9 |
| Rinnakkaisnimet | heat integration, pinch point method, process integration | ideal mixed reactor, back-mix reactor, CSTR |
| Liittyvät≠ | 4 | 3 |
| Tiivistelmä≠ | 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 CSTR (Continuous Stirred-Tank Reactor) model describes the behavior of an ideal mixed reactor where fresh feed is continuously added, products are withdrawn, and contents are kept uniform by vigorous stirring. This fundamental model, formalized by Octave Levenspiel in the 1960s, is widely used to design and scale batch and continuous processes. Despite its simplicity, it captures essential dynamics of industrial reactors and is the baseline for process control and optimization. |
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