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EPR Proprietary I Licensed Material
Rolls-Royce Aero-Derivative Combustion Turbine Background
2-11
Table 2-1
Pedigree Matrix: Rolls-Royce RB211-6562, RB211-6761, Trent 60 (DLE and WLE) Engine Design Characteristics
Design
Characteristic
RB211 – 6562
(RB211-24G Gas Generator
with RT62 Power Turbine)
RB211 – 6761
(RB211-24GT Gas
Generator with RT61 Power
Turbine)
Trent 60 DLE
(Derivative of AERO 800 on
Boeing 777 and Airbus
A330)
Trent 60 WLE
(Derivative of AERO 800 on
Boeing 777 and Airbus
A330)
Reliability, Maintainability, Durability
Comments
Distinguishing
Features
Standard Annular
Combustor
(Non - DLE) 5 Modules,
Free Power Turbine,
External Gearbox
DLE Combustor Option
More efficient Power
Turbine
DLE Combustor, 3 Spools
with 6 Modules , LP
Turbine drives Generator
and LP Compressor
Directly
Std. Diffusion Combustor
with Water Injection, 3
Spools with 6 Modules ,
LP Turbine drives
Generator and LP
Compressor Directly
Fully interchangeable modules with advanced
condition monitoring techniques allows high levels
of availability with a minimum of downtime.
Year of
Introduction
1993 (DLE option in 1994)
Original RB211 Model 1980
RB211-6556 Model 1990
(-24C GG with RT56 PT)
2000
RB211-6762 Model (-24G
Gas Generator and
RT62 Free Turbine) 1999
1997
(was initially named Trent 50)
2002
Approximate
Fleet Size
240 RB211-24G
Total of 400+ RB211
incl. 260+ mech. drive and
80+ Power Generation
68 DLE engines.
All Existing Units can be
Retro-Fitted
New “short style” DLE
reduces dynamics
10+ Total Operating
1 in Ontario, Canada
5 in the UK
1 in Denmark
5 Ordered for Power
Generation
1
Four (4) development
engines running
Designed for maintenance with full modular
features and five interchangeable modules
Designed with condition monitoring system and
multiple borescope ports
Modules are light weight and easily transportable
Output, ISO, Gas
Fuel
28.8 MW (50 Hz or 60 Hz)
27.5 MW (DLE)
32.1 MW (50 Hz or 60 Hz)
51.5 MW (50 Hz)
51.7 MW (60 Hz)
(58 MW max.)
58 MW (50 Hz)
58 MW (60 Hz)
Utilized on 220 onshore applications and 120
offshore applications
Heat Rate, ISO,
LHV
9,226 Btu/kWh
(9,734 kJ/kWh)
9,415 Btu/kWh DLE
(9,933 kJ/kWh)
8,680 Btu/kWh
(9,158 kJ/kWh)
8,104 Btu/kWh
(8,488 kJ/kWh) 50 Hz
8,138 Btu/kWh
(8,530 kJ,/kWh) 60 Hz
Approx. 8,400 BTU/kWh
(8,900 kJ/kWh)
Firing
Temperature
2128
o
F
1164
o
C
2250
o
F
1232
o
C
HPT Inlet 2250
o
F
1232
o
C
HPT Inlet 2250
o
F ?
1232
o
C ?
Thermal
Efficiency, ISO,
Gas Fuel
36.2% 39.3% 42.1% 41.0%
Industry leading efficiency and reliability are
achieved by incorporating the latest technological
advances proven in the flight engine.
Efficiency and flexibility makes this design also
well-suited for pipeline operation