Study on Overall Parameter and Performance Analysis of Different Configurations for Civil Turbofan Engine

Abstract

In order to improve the competitiveness, optimizing the fuel economy and competitiveness of civil turbofan engines is becoming the research highlights recently. The comparison analysis of cycle parameters is carried out for different configurations such as advanced turbofan(ATF), geared turbofan(GTF) and intercooled recuperated aero-engine(IRA). The technical advantage of different configurations is determined. The research results show that the specific fuel consumption at the cruise uninstall condition of GTF configuration is decreased by 2.5% compared to that of ATF configuration. The specific fuel consumption at the cruise uninstall condition of IRA configuration is decreased by 11.97% compared to that of ATF configuration, and which is decreased by 9.7% compared to that of GTF configuration. Comparing to ATF and GTF configurations, the stage number of high pressure compressor and high pressure turbine in IRA configuration can be reduced to shorten the core engine length, and this also diminish the design difficulties of high pressure compressor.

Keywords

• civil turbofan engine
• advanced turbofan
• geared turbofan
• intercooled recuperated aero-engine
• performance analysis