Parametric Cycle Analysis of a Turbofan with Core Engine replaced by Revolutionary Innovative Turbine Engine

摘要

The Revolutionary Innovative Turbine Engine (RITE) is a novel concept turbine engine, which integrates the technology of dual compression rotor (DCR) and inter turbine burner (ITB). What' s more, the RITE concept represents a paradigm shift from traditional turbofan design and offers the potential to improve current standards for turbofan cores. By studying the conventional turbofan base engine and RITE core turbofan, the simulation models were built. Then, analysis on different thermodynamic cycle parameters and performance comparisons between turbofan base engine and RITE core turbofan were conducted. In particular, the matching of forward flow compressor (FFC), centrifugal compressor (CC) and reversed flow compressor (RFC) pressure ratio as well as main burner (MB) and ITB exit temperature of RITE core turbofan were performed. The results indicates that, comparing with conventional turbofan base engine, RITE core turbofan gains better performance improvement at high speed and high compressor pressure ratio, which provides a design basis for high-performance engines. Besides, the performance of RITE core turbofan is improved as RFC pressure ratio increases, while with the increasing of FFC and CC pressure ratio, both the specific thrust (ST) and specific fuel consumption (SFC) are nearly decreasing. In addition, the ST is more sensitive to the change of FFC pressure ratio while the SFC is more sensitive to the change of RFC pressure ratio. And the interaction of FFC and CC is much more intense than that of CC and RFC. Unlike the turbofan base engine, the performance of RITE core turbofan is improved as MB exit temperature increases while the SFC continues to increasing as ITB exit temperature increases. However, the performance of RITE core turbofan, especially the ST, is mainly determined by ITB exit temperature. In general, particularly attention is the unique characters of special components of RITE, namely DCR and ITB.