These are individually mounted within the ships engine rooms. The enclosure offers noise and heat dissipation through the application of lagging on the enclosure walls and a ventilation system utilising the static depression within the exhaust to create a natural flow of air.
4. CONCLUSION
This paper has described how Rolls-Royce is incorporating technological advancements into its product range to meet new marine market requirements. Changes in both the Naval and Commercial markets are demanding reduced through life costs and increased availability. These requirements are met through improved cycle efficiency (and hence reduced fuel usage), greater reliability, reduced maintainability and support of the product for the next 40 years. The ship operators require guarantees of continual support and improvements for their future products through the life of the ship. Therefore, new marine gas turbines benefit from having commonality with the latest aero engines that have a large production and support infrastructure. The WR-21 and Marine Trent gas turbines are the latest Rolls-Royce marine products incorporating both the latest aero technology and marine specific technology necessary to meet the latest challenges of a developing marine gas turbine market.
5. REFERENCES
[1] Qualification of the WR-21 Gas Turbine System for Service - M. Parker/D. Branch - IGTC 1999 Kobe 05-203
[2] The future of Royal Navy Marine Gas Turbines and their application - Lt. Cdr. N. Wright - NATO R and TA
[3] The Introduction and application of the ICR WR-21 for marine service - Lt. Cdr. N. Wright - Journal of Naval Engineering - June 2000
[4] Leading Edge Gas Turbine and Waterjet propulsion technology for Fastship - R. Svensson, H. Janzon, M. Duckworth, R. Watson - Seapower, Portsmouth, January 2000
[5] A comparison of advanced cycle gas turbines with medium speed diesels in cruise ship applications - R. Kok, University of Technology - Delft
[6] Development testing and validation of the WR-21 - M. Parker, E. Watson, D. Branch - INEC 1996
[7] The WR-21 advanced cycle gas turbine: Balancing the needs of the cruise industry and the environment - Geraint Lloyd
