Rim-rotor rotary ramjet engine, part 1: structural design and experimental validation

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DOIResolve DOI: http://doi.org/10.2514/1.B34227
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TypeArticle
Journal titleJournal of Propulsion and Power
ISSN0748-4658
Volume28
Issue6
Pages12931303; # of pages: 11
SubjectExperimental validations; Flame holder; G-loads; High-temperature combustion; Partial failure; Power densities; Proof of concept; Rotor-dynamics; Short periods; Stationary power systems; Turbine blade; Ethers; Structural design; Ignition
AbstractThe rim-rotor rotary-ramjet engine (R4E) is a new propulsion-system design with the potential to significantly improve power density and reduce complexity of conventional gas turbines, thus making it an interesting alternative for future transportation and stationary power systems. This paper presents the structural design and an experiment validation of a proof-of-concept prototype that can sustain 560 m=s (200 krpm) and transient combustion, which is initiated by an integrated-ignition system.Ahigh-strength carbon-polyetheretherketone (PEEK) composite winding is used around the ramjet blades to support the high g load and includes the flame holder. A6.5-cm prototype is spun up to 188 krpm at rim temperature, reaching 473-K for short periods without failure or rotordynamics issues. Several ignitions and high-temperature combustion of 1 s were achieved at 80,000 rpm. High-combustion temperature for 1 s led to the failure of turbine blades. Total and partial failures of the rim rotor demonstrated the concept safety, as all projections were contained without important damage. Copyright © 2012 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc.
Publication date
LanguageEnglish
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number21270122
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Record identifiercce58c9e-0ded-4ca9-b630-286ef9dd6cb0
Record created2014-01-03
Record modified2016-05-09
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