Abstract
In this paper we present an irreversible model of the Joule-Brayton cycle. As is well known, the gas-turbines follow approximately this thermal cycle. Our model reproduces several characteristics of a real gas-turbine such as convex curves of power versus pressure ratio and efficiency versus pressure ratio. Typical loop-shaped curves of power versus efficiency for real heat engines are also recovered. Our model is based in a lumped friction-like term and in a parameter arising from the Clausius inequality. We also suggest a procedure for improving the power and the efficiency of the cycle.
Original language | English |
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Pages (from-to) | 619-623 |
Number of pages | 5 |
Journal | Revista Mexicana de Fisica |
Volume | 44 |
Issue number | 6 |
State | Published - Dec 1998 |
Keywords
- Endoreversibility
- Finite-time
- Thermal cycle