Source: https://tendernation.io/opportunities/01a13c42-0187-72c8-b58e-5595a78cab70/provision-of-technical-support-services-to-perform-independent-confirmatory-safe awarded GB restricted procedure # Provision of technical support services to perform independent confirmatory safety analysis [Health & Safety Executive](https://tendernation.io/buyers/health-safety-executive) Estimated value £1,454,832 Published 6 Sept 2019 Deadline Closed 19 Mar 2019 ## About this tender ONR is seeking to engage one of the Technical Support Contractors (TSC) appointed on Lot 1 of its Technical Support Framework. The TSC is required to develop a thermal hydraulic system code computer model of the UK HPR1000. - A pragmatic approach to its development should be taken to ensure the model can be applied to a selection of fault transients without expending unnecessary effort developing redundant capabilities that are not required. - The computer model should utilise a point kinetic approach for the reactor physics for the initial work scope. However, the model should be developed with a view to coupling with the more sophisticated reactor physics model in the final phase. - The computer model should include a basic consideration of containment response. A more detailed containment model is not envisaged at this time but there is value in providing the capability and flexibility to develop and couple such a modelling if containment behaviour emerges as an area of regulatory interest. Develop a Core Physics computer model of the UK HPR1000. - The TSC will use geometric and isotopic data to derive a set of neutron cross sections for each proposed fuel assembly type as a function of irradiation and other suitable dependencies. Given the proposed fuel loading pattern, this will be used to determine the nominal power distribution for full-power conditions. The nuclear data derived will need to take account of the spectral history of each fuel assembly in the equilibrium core to determine appropriate nuclear data. - The TSC will use the nuclear data produced in 1) to develop a 3D, transient core model suitable for use as part of a wider model for the purposes of fault transient analysis. The adequacy of the predicted steady state performance will be confirmed by comparison against core power-distribution data supplied. Read full description ## CPV classification Research and development services and related consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/98acbd64-7cd7-45ed-9bfb-1a582da7d702) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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