15 - Guest lectures
VEHICLE ASSESSMENT AND SYSTEM-WIDE BENEFIT ANALYSES OF HYBRID-ELECTRIC COMMERCIAL AIRCRAFT – ELECTRIFIED POWERTRAIN FLIGHT DEMONSTRATION PROJECT (EPFD)
K.D. James¹, A. Meade¹; ¹NASA Ames Research Center, United States
NASA is committed to aiding the aviation community to realize revolutionary improvements in environmental per-formance of subsonic transports using alternative propulsion approaches. One such approach to improving 2030-2035 subsonic transport system-level metrics of emissions and conventional fuel consumption is the use of hybrid electric propulsion. Partnering with U.S. industry, the Electrified Powertrain Flight Demonstration (EPFD) project was created to focus on turning megawatt-class hybrid electric powertrain flight into a reality. A goal of EPFD is integrating megawatt-class propulsion to commercial aircraft. This is a multi-disciplinary system integration effort and vehicle assessment, and system-wide benefits analyses is necessary to ensure we can achieve the goal. This pa-per outlines EPFD efforts in parametric sizing of megawatt-class propulsion applied to state-of-the-art single-aisle turbofan and turboprop aircraft using projected 2030-2035 technologies, and their projected system-wide impact on emissions and fuel use.