RB211

Rolls-Royce RB211

RB211

RB211 DLE

The industrial RB211 is derived from the aerospace RB211, which is the chosen power plant for several large airliners.

Thanks to extensive development, the RB211 is the most reliable and easily maintained industrial gas turbine available today.

Auxiliary equipment such as intake air filtration, acoustics and lubrication all form part of the Rolls-Royce scope of supply for oil and gas and power generation applications.

The RB211 gas turbine package matches the technologically advanced Rolls-Royce gas generator with the efficiency of the RT62 or RT61 power turbine. The aero derivative industrial design has demonstrated outstanding reliability, with more than 650 RB211 gas turbines sold, accumulating a total of over 32 million operating hours of experience.

These gas turbine systems have been refined through experience, including remote and offshore applications where availability and reliability are of crucial importance. With superior performance retention and relative ease of overhaul, RB211 systems provide an ideal solution for today's applications.

Performance

Nominal performance, ISO conditions, zero installation losses, natural gas fuel.

Dual fuel DLE and non-DLE models available for both mechanical drive and power generation applications (please consult Rolls-Royce for further information).

Power generation
PerformanceMeasurementG62 DLEGT62 DLEGT61 DLEGZero** non-DLE
PowerkWe27,21629,84532,13032,000
Heat RatekJ/kWe-hr9,9049,5899,1599,541
Efficiency%36.437.539.337.7
Shaft Speedrpm4,8004,8004,8504,800
Exhaust Flowkg/sec91.095.094.0102.0
Exhaust Temp°C501503510477

Mechanical drive
PerformanceMeasurementG62 DLEG62 Non-DLEGT62 DLEGT62 Non-DLEGT61 DLEGT61 Non-DLEGZero
Powershp37,46539,07541,08441,49544,23045,31643,000
Heat RateBtu/shp-hr6,8196,7436,6026,5996,3066,2996,743
Efficiency%37.337.838.638.640.440.437.7
Shaft Speedrpm4,8004,8004,8004,8004,8504,8504,800
Exhaust Flowlb/sec201206210212207210228
Exhaust Temp°C501500503501510510483

* WLE - Water injected

** Gzero is initially offered in non-DLE variants. A DLE offering is being developed.

Upgrade delivers 10 per cent more power

Product details

The RB211-Gzero retrofit upgrade provides existing users of industrial RB211-C and RB211-G gas generators, utilising RT-56 and RT-62 power turbines, with a nominal 10 per cent power increase depending on ambient temperature. The RB211-Gzero upgrade further enhances the productivity and customer value of these reliable units.

The upgrade can be easily achieved with minimal modification to the existing package design during routine unit overhaul. This cost-effective and simple retrofit approach ensures facility down-time is minimised, while performance, power and operator profitability are optimised.

The power enhancement is achieved with increased air flow featuring zero-staging, partial re-blading of the intermediate pressure compressor and upgrading of the inlet vane of the power turbine to suit the higher flow.

RB211-Gzero  technical specifications

  • Same footprint as current RB211 variants
  • Upgrade focusses on two of the five modules: air intake and intermediate pressure compressor
  • Conversion made during the overhaul cycle
  • Factory tested for low risk site installation
  • Ease of gas generator refit 
  • Minimal package alteration
  • No impact on efficiency
  • Only cold section changes to gas generator