Survey of steam turbine blade failures. Final report
This report presents results of an industry-wide survey for blade failures. The overall goal of the EPRI-/EEI sponsored study was to quantify in terms of cost and lost availability, the effect of blade failure on units 300 MW and larger during the period 1970 through 1981. Detailed information on 423 separate outages was collected from 69 US utilities by questionnaire and interview. Analysis of this data indicates that, for the responding portion of the industry surveyed, a significant loss of unit availability between 1970-1981 can be directly attributed to blade failure. Substantial losses of revenue in terms of blade repair costs and power production due to unit downtime were reported by these members of the industry, and are presented within. Based on the data provided, it is concluded that a need exists for a coordinated effort between the utilities, manufacturers and EPRI to develop adaptable technology options which will improve the reliability of LP, IP, and HP blades and increase the availability of fossil and nuclear turbine generator units currently being affected by this problem. 7 references, 30 figures, 41 tables.
- Research Organization:
- Stress Technology, Inc., Rochester, NY (USA)
- OSTI ID:
- 5963134
- Report Number(s):
- EPRI-CS-3891; ON: TI85920554
- Country of Publication:
- United States
- Language:
- English
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