Results 111 to 120 of about 17,267 (230)

Design and Optimization of a Hybrid Gas Generator for Hydrogen Peroxide Tank Pressurization

Challenges and Issues of Modern Science
Purpose. This study develops a pressurization system for hydrogen peroxide tanks using a hybrid gas generator powered by liquid oxygen and solid fuel.
Mykhailo Vorobei, Mykola Bondarenko
doaj  

Hybrid Propulsion Technology Program [PDF]

Future launch systems of the United States will require improvements in booster safety, reliability, and cost. In order to increase payload capabilities, performance improvements are also desirable.
Holzman, A. L., Jensen, G. E.
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Aerospace vehicle [PDF]

, 1985
A dual structure aerospace vehicle is described which has an aeroshell structure and an internally disposed separable and reusable integral tank/thrust structure.
Jackson, L. R., Taylor, A. H.
core   +1 more source

Three orbital transfer vehicles [PDF]

Aerospace engineering students at the Virginia Polytechnic Institute and State University undertook three design projects under the sponsorship of the NASA/USRA Advanced Space Design Program.

core   +1 more source

Real-Gas Effects and Phase Separation in Underexpanded Jets at Engine-Relevant Conditions

, 2018
A numerical framework implemented in the open-source tool OpenFOAM is presented in this work combining a hybrid, pressure-based solver with a vapor-liquid equilibrium model based on the cubic equation of state.
Baab S., Bhaskar V. V. N., Bloomer O. T., Chang S., Cines M. R., Elliott J. R., Firoozabadi A., Goos E., Issa R. I., Kraposhin M. V., Lüdecke D., Matheis J., Mausbach P., Michelsen M. L., Min B. H., Poling B. E., Reid R. C., Wood A. B.   +17 more
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Investigation of the starting transients of high performance solid-propellant motors [PDF]

The starting transients of solid propellant engines were investigated to develop design principles for predicting transients in high performance igniter and engine configurations.
Caveny, L. H., Summerfield, M.
core   +1 more source

Hybrid Buses: Costs and Benefits [PDF]

, 2007
Key Facts:In 2005, more than 60 percent of the 9.7 billion transit passenger trips in the United States were provided by buses, approximately 84 percent of which are powered by diesel combustion engines.Diesel exhaust contains ozone precursors, benzene ...

core  

Hybrid propulsion technology program. Volume 1: Conceptional design package [PDF]

A concept design study was performed to configure two sizes of hybrid boosters; one which duplicates the advanced shuttle rocket motor vacuum thrust time curve and a smaller, quarter thrust level booster.
Holzman, Allen L., Humphrey, John, Jensen, Gordon E., Keilbach, Joseph, Leisch, Steven O., Parsley, Randy   +5 more
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Advanced Earth-to-orbit propulsion technology program overview: Impact of civil space technology initiative [PDF]

The NASA Earth-to-Orbit (ETO) Propulsion Technology Program is dedicated to advancing rocket engine technologies for the development of fully reusable engine systems that will enable space transportation systems to achieve low cost, routine access to ...
Stephenson, Frank W., Jr.
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Overview of space propulsion systems for identifying nondestructive evaluation and health monitoring opportunities [PDF]

The next generation of space propulsion systems will be designed to incorporate advanced health monitoring and nondestructive inspection capabilities. As a guide to help the nondestructive evaluation (NDE) community impact the development of these space ...
Generazio, Edward R.
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