A thermodynamic optimization of a gas turbine cycle with a supplementary regenerator

Abstract

International concern regarding pollution related to maritime transport sector and energy efficiency desiderate have determined specialists to search for more suitable alternatives to internal combustion engines. Due to their advantages, gas turbine systems are met in different marine propulsion applications, such as passenger ships or military vessels. Gas turbines will be even more intensively used in the future, an outcome of this reality being the need of their performance increment. A direction to be followed, considered in this study, is the combination between the improvement of the gas turbine efficiency by including a regenerator in the layout of the plant and, also, the rise of the temperature at the inlet of the turbine (TIT). Will be considered an open cycle gas turbine. The thermodynamic analysis is about the assessment of different influences such as: regenerative effectiveness versus the heat added in the combustor, regenerative effectiveness versus the work consumed by the compressor, regenerative effectiveness versus the thermal efficiency, regenerative effectiveness versus the specific fuel consumption, temperature at inlet of the turbine (TIT) versus the thermal efficiency. The results obtained will indicate the fact that both actions will lead to a gain in the performance of this technology.