Browsing by Author "Hergenreder, DF"
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- ItemCalculation of the core parameters measured during the commissioning of the OPAL Reactor(American Nuclear Society, 2010-05-12) Villarino, EA; Hergenreder, DF; Braoudakis, G; Ersez, TThe OPAL Research reactor is a multi-purpose open-pool type reactor. The nominal fission power of the reactor is 20 MW. It was commissioned during the second half of the year 2006. The reactor has several nuclear safety related design criteria that have to be experimentally verified during Stage B of the commissioning of the reactor. The present work presents the measurements carried out during the Stage B of the commissioning of the OPAL reactor, and the numerical verification of the calculated values using the design calculation methodology against these measured values. A brief description of the OPAL reactor, its commissioning plan, its nuclear safety related design criteria and the calculation and the experimental methodology are presented. The measured values and a comparison with the calculated is also given.
- ItemContract performance demonstration tests in the OPAL(International Atomic Energy Agency, 2007-11-08) Hergenreder, DF; Lecot, CA; Lovotti, O; Villarino, EA; Braoudakis, G; Ersez, TThis paper will describe the measurements and calculations that were done in the OPAL Reactor to demonstrate compliance against contractual Design Features and Performance Acceptance Criteria. The contract specifies several neutronic aspects to be fulfilled by the core, the irradiation and the beam facilities design, which have to be verified during the commissioning tests. Guaranteed flux values will be taken as being for equilibrium core conditions. The relationship between values measured during commissioning (First Core) and the guaranteed values is largely based on calculations. The calculated values are obtained modelling with full detail the measurement conditions using the INVAP traditional calculation lines: CITVAP and MCNP calculation lines. © The Authors