NASA NTRS · 19730020273
H2-O2 auxiliary power unit for space shuttle vehicles
Abstract
A program to establish technology readiness of hydrogen-oxygen (H2-O2) auxiliary power units for use on board the space shuttle orbiter vehicle is discussed. Fundamental objectives include experimentally establishing an acceptable propellant flow control method, verification of combustor stability, and adequate thermal management. An initial APU configuration with recycled hydrogen flow has been studied and revised towards greater simplicity and scaling ease. The selected APU is a recuperated open-cycle, turbine-driven unit. Series flow of cryogenic hydrogen removes internally-generated heat and from the hydraulic system. Steady-state test of the combustor has been successful.
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Joyce, J. P., Beremand, D. G., Cameron, H. M., Jefferies, K. S.. 1973-01-01. H2-O2 auxiliary power unit for space shuttle vehicles. https://ntrs.nasa.gov/citations/19730020273
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