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| Il Ciclo Brayton× | Termodinamica a Tempo Finito× | Ciclo a compressione di vapore× | |
|---|---|---|---|
| Campo | Termodinamica | Termodinamica | Termodinamica |
| Famiglia | Process / pipeline | Process / pipeline | Process / pipeline |
| Anno di origine≠ | 1873 | 1996 | 1834 |
| Ideatore≠ | George Brayton | Adrian Bejan | Jacob Perkins |
| Tipo≠ | Thermodynamic cycle | Thermodynamic optimization | Thermodynamic cycle |
| Fonte seminale≠ | Moran, M. J., Shapiro, H. N., Boettner, D. D., & Bailey, M. B. (2014). Fundamentals of Engineering Thermodynamics (8th ed.). Wiley. ISBN: 978-1118412947 | Bejan, A. (1996). Entropy Generation Minimization. CRC Press. ISBN: 978-0849394515 | Stoecker, W. F., Jones, J. W., & Sunnam, B. A. (1998). Refrigeration and Air Conditioning (2nd ed.). McGraw-Hill. ISBN: 978-0070613638 |
| Alias | Joule cycle, gas turbine cycle | FTT, irreversible thermodynamics | refrigeration cycle, heat pump cycle |
| Correlati | 3 | 3 | 3 |
| Sintesi≠ | The Brayton Cycle (also called Joule Cycle) describes the thermodynamic process in gas turbines and jet engines. It consists of four processes: isentropic compression in a compressor, isobaric combustion (heat addition), isentropic expansion in a turbine, and isobaric heat rejection. The Brayton Cycle is the foundation for analyzing aircraft propulsion, ground-based power generation, and simple-cycle gas turbine plants. | Finite-Time Thermodynamics (FTT) relaxes the classical assumption that thermodynamic processes occur reversibly (infinitely slowly). Instead, it analyzes real thermal systems operating at finite rates with irreversibilities. FTT reveals fundamental trade-offs: to complete a process quickly requires accepting large irreversibilities and low efficiency, while slow operation achieves high efficiency but requires impractical time and cost. | The Vapor Compression Cycle is the fundamental thermodynamic cycle for refrigeration systems and heat pumps. It describes how mechanical work is used to transfer heat from a cold space (evaporator) to a warm space (condenser), operating against the natural temperature gradient. The cycle consists of four processes: isentropic compression, isobaric condensation, isenthalpic throttling, and isobaric evaporation. |
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