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Tenfell
Awarded contract
Published 17 Aug 2016

Research Support on the Study of Local Heat Transfer Co-Efficient on Peripheral PWR Assembly Fuel in the Event of Touching Spacer Grids

Health and Safety Executive · North West

Key facts

Contract value
£26,650
Awarded
08 Jun 2016
Contract starts
31 Aug 2016
Contract ends
30 Nov 2016
Procedure
Restricted procedure
Buyer type
Central government

Awarded to

SupplierValue
Checkendon Hill Ltd£26,650

Description

Identify the base phenomena defining the CHF limit for both flow reduction and overpower fault conditions in the PWR core, considering the potential for TSG. This analysis should consider the limitations of CHF test rigs in representing core cross-flow and assembly-periphery conditions. Review the options (methods, tools and models) that are currently available for CHF prediction and their development status. The review should cover the practices of the leading PWR vendors, operators and fuel providers as well as independent research establishments and academic institutions. Recommend a reasonable strategy allowing ONR to assess the adequacy of safety margins in set points for CHF mitigation arrangements of current and new built PWRs against the criterion that protection should be demonstrated with a high level of confidence. Provide conclusions and recommendations

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