Rocket Engines

Rocket Engines - Engines JIN KANG Propulsion Comparison Chart Rocket Propulsion Main difference carries own oxidizer Conventional combustion

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Engines JIN KANG
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Propulsion Comparison Chart
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Rocket Propulsion ! Main difference : carries own oxidizer ! Conventional combustion engines : air-breathing engines ! Rockets : carries both fuel and oxidizer " No air in space " Simpler design
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Rocket Types ! Chemical ! Liquid " Mono propellant " Bi-propellant ! Solid ! Hybrid ! Electric propulsion ! Electric thermal ! Electric Static ! Cold gas system 4
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5 Chemical Rocket ! Chemical fuel and oxidizer combine inside chamber ! Mixed chemical inside chamber is ignited to produce hot gas ! Hot gas expands through nozzle to produce thrust
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6 Bi-propellant Rocket ! Liquid oxidizer and fuel react in combustion process ! Oxidizer: liquid oxygen, nitrogen tetroxide, etc. ! Fuel: liquid hydrogen, kerosene, hydrazine, etc. ! Advantages: ! High I sp (~400s) ! Can be throttled ! Can be re-started ! Disadvantages ! Two propellants separate tanks, etc. ! Very high heat thermal control can be problematic
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7 Monopropellant Rocket ! Single propellant containing both fuel and oxidizer is
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This note was uploaded on 04/26/2011 for the course MEM 373 taught by Professor Jinkang during the Spring '11 term at Drexel.

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Rocket Engines - Engines JIN KANG Propulsion Comparison Chart Rocket Propulsion Main difference carries own oxidizer Conventional combustion

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