A Feasibility Study of Inverted Brayton Cycle for Gas Turbine Repowering

Author:

Bianchi M.1,Negri di Montenegro G.1,Peretto A.1,Spina P. R.1

Affiliation:

1. DIEM-University of Bologna, Viale del Risorgimento, 2, 40136 Bologna, Italy

Abstract

In the paper a feasibility study of inverted Brayton cycle (IBC) engines, for the repowering of existing gas turbines, is presented. The following main phases have been carried out: (i) identification of the more suitable gas turbines to be repowered by means of an IBC engine; (ii) designing of the IBC components. Once the IBC engines for the candidate gas turbines were designed, an analysis has been developed to check the possibility to match these engines with other gas turbines, similar to those for which the IBC engines have been designed. In all the analyzed cases the evaluated performance result only slightly worse than that obtainable by repowering the same gas turbine with IBC engines ad hoc designed.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference12 articles.

1. Wilson, G. D., 1984, The Design of High-Efficiency Turbomachinery and Gas Turbine, The MIT Press, Cambridge, MA.

2. Bianchi, M., Negri di Montenegro, G., and Peretto, A., 2002, “Inverted Brayton Cycle Employment for Low-Temperature Cogenerative Applications,” ASME J. Eng. Gas Turbines Power, 124, pp. 561–565.

3. Gate Cycle, Computational Code–Release 5.22, Enter Software, Menlo Park, CA.

4. Thermoflex 5.2, Thermoflow 8, Release 1, Thermoflow, Sudbury, MA.

5. Gas Turbine World 2001–2002 Handbook, 2002, published in addition to Handbook and Performance Specifications annual, 22, Pequot, Fairfield, CT.

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