SP2 Intercooled Recuperative Core – Introduction. Intercooled Recuperated Aero-engine (ICR) cycle will use significant benefits from further increased propulsive and thermal efficiencies with a potential of up to 20% fuel consumption- and CO_2-emission reduction versus year 2000 reference. NEWAC SP2 reference are investigations and results from the previous EC-projects EEFAE CLEAN and AEROHEX. The significant low OPR of ICR cycle supports by itself ultra low NO_x combustor conditions and, hence, technologies, which are not applicable for high OPR engines as for instance leanprevaporized-premixed (LPP) combustor technologies. For targets beyond 2020, SP2 will initiate studies on even more innovative core concepts relative to ICR on system level and develop a roadmap to even higher targets then the ACARE 2020.
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