Full Content is available to subscribers

Subscribe/Learn More  >

Aerothermodynamic Optimization of a TSTO Concept With a Liquid Air Cycle

[+] Author Affiliations
Takahiko Toki

University of Tokyo, Tokyo, Japan

Nandeesh Hiremath, Narayanan Komerath

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2016-65846, pp. V001T03A039; 12 pages
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5051-0
  • Copyright © 2016 by ASME


Regular, routine and affordable access to low Earth orbit (LEO) with heavy payloads is essential to develop infrastructure beyond Earth. A Space Solar Power system based on the Intensified Conversion architecture gives the market parameters to routinely transfer 25000 kg to and from LEO. An initial analysis combines aerodynamics and aerothermodynamics. A hydrogen-oxygen system which collects the oxygen for the rocket phase in flight. The transonic airliner class carrier with hydrogen-fueled turbofans contains the equipment for oxygen collection during subsonic ascent. The second stage starts as transonic ramjet near 18000m, transitions to supersonic combustion at Mach 5 and then to rocket. Aerodynamic lifting surfaces sized by the second stage landing are used in supersonic ascent. This establishes a new basis to estimate launch cost for large-scale infrastructure development in orbit. The optimization results show that a supersonic carrier to Mach 2 and above, along with a higher release altitude for the second stage, should improve payload, but requires design of a completely new supersonic carrier. The results also show the need for oxygen liquefaction systems optimized for LACE and utilizing the availability of liquid hydrogen at the rate needed by the engines.

Copyright © 2016 by ASME
Topics: Optimization , Cycles



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In