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A Probabilistic System Analysis of Intelligent Propulsion System Technologies

[+] Author Affiliations
Michael T. Tong

NASA Glenn Research Center, Cleveland, OH

Paper No. GT2007-27914, pp. 153-161; 9 pages
doi:10.1115/GT2007-27914
From:
  • ASME Turbo Expo 2007: Power for Land, Sea, and Air
  • Volume 1: Turbo Expo 2007
  • Montreal, Canada, May 14–17, 2007
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4790-X | eISBN: 0-7918-3796-3

abstract

NASA’s Intelligent Propulsion System Technology (Propulsion 21) project focuses on developing adaptive technologies that will enable commercial gas turbine engines to produce fewer emissions and less noise while increasing reliability. It features adaptive technologies that have included active tip-clearance control for turbine and compressor, active combustion control, turbine aero-thermal and flow control, and enabling technologies such as sensors which are reliable at high operating temperatures and are minimally intrusive. A probabilistic system analysis is performed to evaluate the impact of these technologies on aircraft CO2 (directly proportional to fuel burn) and LTO (landing and takeoff) NOx reductions. A 300-passenger aircraft, with two 396-kN thrust (85,000-pound) engines is chosen for the study. The results show that NASA’s Intelligent Propulsion System technologies have the potential to significantly reduce the CO2 and NOx emissions. The results are used to support informed decision-making on the development of the intelligent propulsion system technology portfolio for CO2 and NOx reductions.

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