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Integrated Testing of the Full Authority Digital Control and Redundant Independent Mechanical Start System for the U.S. Navy’s DDG-51 Ship Service Gas Turbine Generator Sets FREE

[+] Author Affiliations
Helen J. Kozuhowski, Matthew G. Hoffman, C. David Mako

Naval Surface Warfare Center

Leonard L. Overton, Jr.

Allison Engine Company

William E. Masincup

Naval Sea Systems Command

Paper No. 98-GT-273, pp. V002T03A006; 8 pages
doi:10.1115/98-GT-273
From:
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7863-7
  • Copyright © 1998 by ASME

abstract

The U.S. Navy and Allison Engine Company successfully completed a second round of testing which integrated a new Woodward Governor Full Authority Digital Control (FADC) system for gas turbine control and a Redundant Independent Mechanical Start System (RIMSS). This integrated system will be installed on Allison Model AG9140 Ship Service Gas Turbine Generators (SSGTGs) on hull numbers DDG-86 and follow of the U.S. Navy’s Arleigh Burke (DDG-51) class destroyers.

The Full Authority Digital Control (FADC) Local Operating Panel (LOCOP) will be a direct replacement of the original AG9140 LOCOP and will control both the Allison 501-K34 gas turbine and the RIMSS unit. RIMSS is a gas turbine powered, mechanically coupled start system for the SSGTGs and is designed to replace the high pressure start air system on DDG-51 class ships.

This paper describes the FADC and RIMSS systems and details Phase II testing that was conducted on the AG9140 SSGTG located at the Naval Surface Warfare Center, Carderock Division - Ship Systems Engineering Station (NSWCCD-SSES) DDG-51 Land Based Engineering Site (LBES), Figure 1. The test program embodied the second portion of RIMSS testing which included the addition of the final prototype FADC control system. The test agenda included electric plant operations with the FADC and a second 500 start endurance test of RIMSS. The primary objective of Phase II testing was to evaluate the FADC control system and to further validate engine life predictions for the RIMSS engine.

Copyright © 1998 by ASME
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