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Advanced Expander Test Bed Engine
Annual rept. no. 2, 1 Jan-31 Dec 1991
PRATT AND WHITNEY WEST PALM BEACH FL
Pagination or Media Count:
The Advanced Expander Test Bed AETB is a key element in NASAs Space Chemical Engine Technology Program for development and demonstration of expander cycle oxygenhydrogen engine and advanced component technologies applicable to space engines as well as launch vehicle upper stage engines. The AETB will be used to validate the high-pressure expander cycle concept, investigate system interactions, and conduct investigations of advanced mission focused components and new health monitoring techniques in an engine system environment. The split expander cycle AETB will operate at combustion chamber pressures up to 1200 psia with propellant flow rates equivalent to 20,000 lbf vacuum thrust. Contract work began 27 April 1 1990. During 1991, work was concentrated mainly on 1 the Preliminary Design Review and subsequent publishing of the PDR Report, 2 updating the steady-state and transient simulation models to reflect design changes, and 3 analytical and mechanical design of engine components, primarily the turbopumps.
APPROVED FOR PUBLIC RELEASE