Dinorwig Power Station: The successful solution to cavitation problems at Dinorwig Power Plant with the aid of polymeric coatings
Conference
·
OSTI ID:220176
Dinorwig Power Station commissioned in 1983 is among the largest pumped storage power plants in Europe. It was specifically designed to meet sudden increases in electricity demand and can generate up to 1320 MW of station output within approximately 12 seconds. The station is one of two plants operated by the National Grid Company`s Pumped Storage Business. The Pump Turbines were commissioned in 1983, and after early operation cavitation problems were evident on the majority of the stayvanes. The acceleration of this cavitation damage threatened the operational availability of the power station. Traditional repair techniques were considered, and rejected due to the difficult access, length of shutdown period, and massive financial cost due to the stations non availability and therefore research into polymeric coatings was instigated. The six Dinorwig machines were used as test beds testing various combinations of polymeric blends. Using the high flow and cavitation characteristics of each turbine and stayvane it became a fast way of assessing the suitability of individual formulations.
- OSTI ID:
- 220176
- Report Number(s):
- CONF-9507190--
- Country of Publication:
- United States
- Language:
- English
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