Results 31 to 40 of about 9,291 (187)

Propulsion technology needs for advanced space transportation systems [PDF]

open access: yes
Plans are formulated for chemical propulsion technology programs to meet the needs of advanced space transportation systems from 1980 to the year 2000.
Gregory, J. W.
core   +1 more source

Recoverable single stage spacecraft booster Patent [PDF]

open access: yes, 1967
Recoverable, reusable single stage booster capable of injecting large payloads into circular earth ...
Bono, P.
core   +1 more source

Energy Consumption and Saved Emissions of a Hydrogen Power System for Ultralight Aviation: A Case Study

open access: yesEnergies
The growing concern about climate change and the contemporary increase in mobility requirements call for faster, cheaper, safer, and cleaner means of transportation.
Teresa Donateo   +3 more
doaj   +1 more source

On the use of external burning to reduce aerospace vehicle transonic drag [PDF]

open access: yes
The external combustion of hydrogen to reduce the transonic drag of aerospace vehicles is currently being investigated. A preliminary analysis based on a constant pressure control volume is discussed.
Trefny, Charles J.
core   +1 more source

Hydrogen as a fuel. some aspects of its combustion processes [PDF]

open access: yes, 1979
The possibility of utilizing hydrogen as a fuel in air breathing power plants or in other energy conversion systems in a near future has been extensively studied and discussed, as for example, in the First World Hydrogen Energy Conference, including the ...
Crespo Martínez, Antonio   +2 more
core  

Preliminary performance appraisal of Navy V/STOL transport and search-type airplanes using hydrogen fuel [PDF]

open access: yes
First-cut estimates are given of the performance advantages of liquid-hydrogen-fueled, ejector wing, V/STOL aircraft designed for shipboard delivery and search-type missions.
Strack, W. C.
core   +1 more source

Numerical modeling of lean hydrogen spark-ignition engines: On the role of intrinsic instabilities

open access: yesApplications in Energy and Combustion Science
Hydrogen-fueled internal combustion engines (H2-ICEs) hold strong potential as a pathway toward CO2-neutral propulsion. To reduce Image 1001 emissions, H2-ICEs are usually operated under fuel-lean conditions, where the flames are prone to thermo ...
Benjamin Traut   +5 more
doaj   +1 more source

Test program to provide confidence in liquid oxygen cooling of hydrocarbon fueled rocket thrust chambers [PDF]

open access: yes
An experimental program has been planned at the NASA Lewis Research Center to build confidence in the feasibility of liquid oxygen cooling for hydrocarbon fueled rocket engines.
Armstrong, E. S.
core   +1 more source

Correction: Jung et al. Heat Integration of Liquid Hydrogen-Fueled Hybrid Electric Ship Propulsion System. J. Mar. Sci. Eng. 2023, 11, 2157

open access: yesJournal of Marine Science and Engineering
Error in Figure [...]
Wongwan Jung, Jinkwang Lee, Daejun Chang
doaj   +1 more source

The design of two-stage-to-orbit vehicles [PDF]

open access: yes
Two separate student design groups developed conceptual designs for a two-stage-to-orbit vehicle, with each design group consisting of a carrier team and an orbiter team.

core   +1 more source

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