Nuclear Wave Rotor Bi-Modal Cycle for In-Space Propulsion

Ryan Gosse, Garrison Osborne, Haris Mahmood, Sarah K. Burrows, Subrata Roy, Justin Watson, Michael Tonks, Anthony J. Colozza

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nuclear Thermal Propulsion (NTP) is currently identified as one of the preferred propulsion technologies for human missions throughout the solar system. The state-of-the-art NTP cycle is based on a solid core Nuclear Engine for Rocket Vehicle Application (NERVA) class technology that is envisioned to provide a specific impulse (Isp) of 900 seconds doubling chemical rocket performance (450 seconds). Even with this impressive increase, the NTP Isp still has issue providing adequate initial to final mass fractions for high ΔV missions. Nuclear Electric Propulsion (NEP) can provide extremely high Isp (>10,000 seconds) but with only low thrust and limits on propulsion system mass to power ratio. The need for an electric power source also adds the issue of heat rejection in space where thermal energy conversion to electric is at best 30-40% under ideal conditions. A novel Wave Rotor (WR) topping cycle is proposed that promises to deliver thrust approaching NERVA class NTP propulsion, but with Isp in the 1200-2000 second range. Integrated with a hybrid NEP mode, the duty cycle Isp can further be increased (1800-4000 sec) with minimal additional dry mass. The bi-modal design enables a Fast Transit class human mission to Mars and has the potential to revolutionize the deep space exploration of our solar system.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum and Exposition, 2024
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624107115
DOIs
StatePublished - 2024
EventAIAA SciTech Forum and Exposition, 2024 - Orlando, United States
Duration: Jan 8 2024Jan 12 2024

Publication series

NameAIAA SciTech Forum and Exposition, 2024

Conference

ConferenceAIAA SciTech Forum and Exposition, 2024
Country/TerritoryUnited States
CityOrlando
Period1/8/241/12/24

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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