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PRCI PR-15-9528
- Life Management of the RB211-24C Gas Turbine
- Report / Survey by Pipeline Research Council International, 12/01/1998
- Publisher: PRCI
$198.00$395.00
L51797e
Southwest Research Institute
Need: Gas turbine engines are in common use in the Gas Pipeline industry to drive gas compressors in compression facilities. One of the major cost factors in the operation of these turbines is the repair or replacement of the hot section components. Technology that can extend the operational life of these components, or increase the ability to repair these components, is of immediate financial and operational benefit to members of PRCI. The RB211 gas turbine engine is commonly used in compression facilities. The life of the model 24C HP turbine blades is currently inadequate, leading to early replacement at a cost of approximately $300,000 per set. Actual life is not known by the users (or the OEM) and existing estimates are unreliable.
Result: Since users do not have adequate means to predict the point at which the blades must be retired, this study of the RB211-24C HP blade life factors was initiated to provide users with guidance for blade maintenance. The objectives of the project were to define the life factors affecting the repair and replacement decisions for the RB211-24C HP turbine blades. This includes determining the operative degradation modes of these turbine blades; the expected life of these blades as a function of engine operation; the potential to repair these blades, and the potential to obtain additional life and durability of the blades by the use of more protective coatings.
Benefit: The results of this project will assist Gas Pipeline Operators in making cost-effective maintenance decisions with respect to replacement and/or repair of HP turbine blades. The results will also improve the reliability, as well as extend the life and serviceability of existing compressor facilities.
Southwest Research Institute
Need: Gas turbine engines are in common use in the Gas Pipeline industry to drive gas compressors in compression facilities. One of the major cost factors in the operation of these turbines is the repair or replacement of the hot section components. Technology that can extend the operational life of these components, or increase the ability to repair these components, is of immediate financial and operational benefit to members of PRCI. The RB211 gas turbine engine is commonly used in compression facilities. The life of the model 24C HP turbine blades is currently inadequate, leading to early replacement at a cost of approximately $300,000 per set. Actual life is not known by the users (or the OEM) and existing estimates are unreliable.
Result: Since users do not have adequate means to predict the point at which the blades must be retired, this study of the RB211-24C HP blade life factors was initiated to provide users with guidance for blade maintenance. The objectives of the project were to define the life factors affecting the repair and replacement decisions for the RB211-24C HP turbine blades. This includes determining the operative degradation modes of these turbine blades; the expected life of these blades as a function of engine operation; the potential to repair these blades, and the potential to obtain additional life and durability of the blades by the use of more protective coatings.
Benefit: The results of this project will assist Gas Pipeline Operators in making cost-effective maintenance decisions with respect to replacement and/or repair of HP turbine blades. The results will also improve the reliability, as well as extend the life and serviceability of existing compressor facilities.
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