The Westinghouse/Rolls-Royce WR-21 marine gas turbine with an intercooled, recuperated thermodynamic cycle utilises exhaust heat to provide exellent efficiency not only at full power but also at part power. Vital to the success of the engine and the optimisation of fuel consumption is the Variable Aera Nozzle (VAN) which is used to control turbine capacity across the power range. By continuously monitoring and controlling turbine capacity, the heat recovered by the recuperator is optimised across the power range. The efficiency of the power turbine variable stage at low power (low flow) and its ability to deliver full power (high flow) is vital to the success of the engine. Success also requires precise control of the variable vane, easy maintenance and good reliability in a hot, mechanically hostile environment. This paper describes the aerodynamic and mechanical design, rig verification and early engine experience of variable power turbine stage.
The Westinghouse/Rolls-Royce WR21 gas turbine variable area power turbine design
Die Auslegung der WR 21 Gasturbine von Westinghouse/Rolls-Royce mit variabler Leistungsabgabe
1995
7 Seiten, 10 Bilder, 3 Quellen
Aufsatz (Konferenz)
Englisch
Marinetechnik , Schiffsgasturbine , thermischer Wirkungsgrad , Leistungsabgabe , variables Eintrittsleitgitter , stufenlose Regelung , Abgasrückführung , Wärmeenergie , Wartungsfreundlichkeit , Wirtschaftlichkeit , Betriebssicherheit , technische Entwicklung , Auslegung (Dimension) , Konstruktionsdaten , Aerodynamik , Betriebseigenschaft
POWER GENERATION - Rolls-Royce Turbine Powers Past Milestone
Online Contents | 2006
38,000,000 hours with Rolls-Royce turbine engines
Engineering Index Backfile | 1963
Rolls-Royce gas turbine for marine propulsion
Engineering Index Backfile | 1953
Development of Rolls-Royce propeller turbine engines
Engineering Index Backfile | 1956
|Development of rolls-royce propeller turbine engines
Engineering Index Backfile | 1956
|