02342nab a2200229 4500 20260520003102.0 260224s2012 xxu ing Inglés Optimization of Gas Turbine Cogeneration Systemfor Various Heat Exchanger Configurations mayo/jun. 2012 16/05/2013 ; 16/05/2013 18 p. ; 517-535 Traducción del resúmen del autor: The present paper investigates and compares the performance of three configurations of Gas Turbine systems allowing cogeneration of heat and electricity, on the basis of an irreversible regenerative Brayton-Joule cycle. The proposed model is developed for two different cycle constraints, namely, an imposed heat transfer rate released by the fuel combustion, or an imposed maximum cycle temperature. The model also includes the irreversibility due to the friction in the compressor and turbine, and due to the heat losses in the combustion chamber and heat exchangers. Energy efficiency for the system without and with cogeneration, and the exergetic efficiency are used in order to emphasize the cogeneration advantages, but also to help the designer to choose the best configuration of the Gas Turbine system that suits to his needs. Experimental data from a real operating microturbine were used to validate the model. The power output and the energy and exergetic efficiencies are optimized with respect to a set of operating parameters. The optimum values of the Gas Turbine engine parameters corresponding to maximum power output and respectively to maximum thermodynamic efficiency are discussed. The results show same optimal values of the compression ratio corresponding to almost all maximum performances for an imposed heat transfer rate released by the fuel combustion, excepting the maximum exergetic efficiency that requires higher optimal values of the compression ratio than the maximum exergy rate one. A performance comparison of the three configurations is done and future perspectives of the work are proposed. 3 Oil and Gas Science and Technology 67 ARTICULO Costea, M. 49205 Feidt, M. 12870 Alexandru, G. 53205 Descieux, D. 53206 187700 187700 0 0 0 0 255519 BAAB BAAB 2026-03-06 200059842 0 200059842 2026-03-06 00:17:41 2026-03-06 ARTICULO