| Citation: | TAO Rui, ZHAO Jun, WU Chuan, et al. Overall performance study on turboshaft engine with inter-stage turbine burner[J]. Journal of Aerospace Power, 2025, 40（7）：20230526 doi: 10.13224/j.cnki.jasp.20230526
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To study the impact of inter-stage turbine burner (ITB) technology on the overall performance of turboshaft engine, a simulation model of variable specific heat was established using the component-level modeling method on the Visual C++ (VC) platform. Through simulation and comparative analysis, changes in engine performance were investigated under different operating cycle parameter matching conditions. The results indicated that the total temperature at the exit of the main combustion chamber and the ITB reheating had a significant influence on fuel consumption. When the total temperature at the exit of the main combustion chamber increased by 500 K and the ITB transited from closed to fully open state, the relative increase in fuel consumption decreased by 9.24%. Under throttling conditions, as the relative rotational speed of the engine core decreased, the magnitude of power output improvement from activating ITB decreased. Under altitude conditions, with increase of the flight altitude, the reduction in fuel consumption due to ITB was greater than that in a conventional turboshaft engine. Under temperature conditions, as the ambient atmospheric temperature increased, the increase in fuel consumption due to ITB was higher compared with a conventional turboshaft engine.
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