Akademik Veri Yönetim Sistemi
5. INTERNATIONAL GAZİANTEP SCIENTIFIC RESEARCH CONGRESS, Gaziantep, Türkiye, 27 - 28 Aralık 2025, ss.67-74, (Tam Metin Bildiri)
Interest in Range-Extended Electric Vehicles (REEVs) continues to grow due to the range limitations imposed by battery capacities in electric vehicles and persistent long charging times. In these vehicles, when the battery level drops below a certain threshold, a range extender (Internal Combustion Engine, Fuel Cell, or Micro Gas Turbine) activates to charge the battery, thereby extending the electric vehicle's driving range. The utilization of Micro Gas Turbines (MGT) as range extenders is gaining increasing attention due to their high-power density and low emission characteristics. 1D modeling techniques are frequently employed in MGT system design to achieve desired performance outcomes. In this study, a 100-kW micro gas turbine was modeled using the Siemens Amesim software. The system consists of a compressor, combustion chamber, and turbine components. Compressor and turbine maps were generated using the scaling method within Siemens Amesim. The design parameters of the micro gas turbine were determined as a shaft rotational speed of 88500 rpm, a pressure ratio of 5, and an air mass flow rate of 0.82 kg/s. Compressor and turbine efficiencies were defined as 0.79 and 0.89, respectively. Methane was utilized as fuel. As a result of the modeling, compressor and turbine performances were examined. The effect of Turbine Inlet Temperature (TIT) on the system's thermal efficiency was demonstrated as a function of the pressure ratio. It was observed that thermal efficiency increases with rising TIT but declines after a certain pressure ratio. The study concludes that micro gas turbines represent an efficient, sustainable, and compact range extender solution for electric vehicles.