The Design and Fabrication of a Small Highly Instrumented Counterrotating Turbine Rig PUBLIC ACCESS

[+] Author Affiliations
D. P. Davidson

Rotadata Incorporated, Cincinnati, OH

A. K. Finke

Pratt & Whitney, West Palm Beach, FL

Paper No. 93-GT-396, pp. V03CT17A057; 8 pages
  • ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3C: General
  • Cincinnati, Ohio, USA, May 24–27, 1993
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7892-7
  • Copyright © 1993 by ASME


The paper describes some of the design solutions that were adopted in the realization of a small two shaft, counterrotating turbine rig. The turbine, for a small space engine technology upper stage liquid propellant rocket turbo pump system, was only 100mm tip diameter with a correspondingly small annulus height. Detailed flow measurements were provided by 3 axis actuators at inlet and outlet of the working section. Torque and Power were measured on each shaft using Radio Frequency (R.F.) telemetry torquemeters.

A modular design allowed the rig to be rebuilt rapidly in one and two stage configurations with different blade sets. This enabled the effect of changing turbine configurations to be studied.

Copyright © 1993 by ASME
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