1972-02-01

Storable Fueled Power System for Space Shuttle 720836

The effects of system/component selection and design on the fuel consumption of a hydrazine fueled, auxiliary power unit suitable for the Space Shuttle Orbiter are discussed. An auxiliary power unit (APU) output of 150 HP hydraulic and 20 KVA electrical has been assumed as well as a representative load/altitude mission profile. While the efficiency of the various components which make up the system are discussed, emphasis is placed on turbine and control system design as these areas are major contributors to APU performance.

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