RESEARCH PAPERS: Gas Turbines: Marine

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

[+] Author and Article Information
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

J. Eng. Gas Turbines Power 117(3), 557-562 (Jul 01, 1995) (6 pages) doi:10.1115/1.2814131 History: Received February 09, 1994; Online November 19, 2007


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.

Copyright © 1995 by The American Society of Mechanical Engineers
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