Design and Development of the WR-21 Intercooled Recuperated (ICR) Marine Gas Turbine

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  • S. B. Shepard
    Naval Sea Systems Command, Washington, DC 20362
  • T. L. Bowen
    Naval Surface Warfare Center, Annapolis Detachment, Carderock Division, Annapolis, MD 21802
  • J. M. Chiprich
    Westinghouse Electric Corporation, Marine Division, Sunnyvale, CA 94088

Description

<jats:p>The U.S. Navy is developing an Intercooled Recuperated (ICR) marine gas turbine, designated the WR-21, for propulsion of future surface ships. The objectives of this development program and the key technical requirements are summarized. The design of the WR-21 is described in considerable detail. Meeting all the design requirements for performance, space, weight, reliability, maintainability, and life has been challenging. Numerous design tradeoffs and iterations have been performed to optimize the design within the constraints imposed in the ICR technical specification. Integration of the WR-21 engine into the DDG51 Flight IIA ship, which is the U.S. Navy’s first application, has influenced the WR-21 design. This paper discusses the aspects of the DDG-51 application that were factored into the design of the ICR engine in order to reduce installation costs.</jats:p>

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