Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"bipropellant"”.
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Experimental investigation of microfabricated bipropellant rocket engines
… thrust-to-weight of conventional chemical liquid bipropellant engines. The first microrocket engine thrust chamber and nozzle design measures 18 x 14 x 3 mm and is fabricated from single crystal silicon using MEMS microfabrication techniques offering the promise of low cost in production. This …
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Systems analysis of a microfabricated storable bipropellant rocket engine
… discusses the systems analysis of a storable bipropellant micro-rocket engine. Micro-rockets are built using MEMS technology and are projected to deliver a thrust to weight ratio up to two orders of magnitude greater than conventional rocket motors at small thrust levels making them very …
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Development and test of a microfabricated bipropellant rocket engine
The development of high aspect-ratio, high precision micromachining in silicon or silicon carbide suggests the feasibility of rnicrofabricated, high chamber pressure chemical rocket engines. Such an engine, approximately 20x15x3 mm in size, would produce about three pounds of thrust using 300 sec I …
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Preliminary design of a liquid bipropellant microfabricated rocket engine
This thesis discusses the design of a microfabricated rocket engine. Micro-rockets feature a thrust to weight ratio up to two orders of magnitude greater than conventional rocket motors at small thrust levels and hence are very attractive for satellite propulsion applications and micro-satellite …
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Supersonic Retro-Propulsion Computational Fluid Dynamics Analysis Applied to Future Mars Mission
… software vetted and used by NASA. The bipropellant motor chosen has been flight proven and supported by data not presentable due to ITAR restrictions. The free stream and subsonic conditions analyses were primarily used to compare the supersonic results. The feasibility of supersonic …
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THERMAL MANAGEMENT OF ROTATING DETONATION ENGINES
… management strategy for a laboratory-scale bipropellant (ethylene-air) RDE by means of a methodical approach to designing a cooling system. The research methods include experimental measurements, low-order analysis, and finite element analysis. A preliminary thermal assessment is performed …
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Micro-scale turbopump blade cavitation
… turbopump for the use in a micro-fabricated bipropellant liquid rocket engine is of interest. Such a pump might have airfoils on the order of 1mm chord and 0.2mm span and operate at a Reynolds number of 6000. Cavitation is a major technical issue in such a pump, but there is little work in …
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The Simulation, Development, and Testing of a Staged Catalytic Microtube Ignition System
… microtubes can be used to cause ignition of a bipropellant mixture in a rocket application and develops a unique ignition system as a low energy alternative or redundant ignition system as compared to current spark systems. Part I covers the experimental testing of a methane and oxygen …
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Development of a High Performance Micropropulsion System for CubeSats
Picosatellites are defined as satellites with a mass between 0.1 and 1kg (Miniaturized satellite). Picosatellites are typically designed to work together or function in formations (Miniaturized satellite). A specific type of Picosatellite known as CubeSats were introduced in 1999 and since then …