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Prediction of extreme temperatures in a reactor using measurements affected by control action.

Tunnicliffe Wilson, Granville and Logsdon, J. and Scarrot, C. (2003) Prediction of extreme temperatures in a reactor using measurements affected by control action. Technometrics, 45 (2). pp. 159-168.

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Abstract

In a nuclear reactor, the coolant temperatures at 4,000 channel outlets are important for risk assessment. Temperatures measurements are made at only one in nine channels, and predictions of the temperatures are required at the remaining channels. The measured temperatures do not exceed an upper limit imposed by control action. Their histogram therefore provides no direct information about the distribution above this limit of the temperatures at the remaining channels. We predict the unmeasured temperatures by spatial interpolation of a surface fitted to the measured temperatures and modeling of the distribution of the residuals from this fit.

Item Type: Article
Journal or Publication Title: Technometrics
Additional Information: RAE_import_type : Journal article RAE_uoa_type : Statistics and Operational Research
Uncontrolled Keywords: EXTREMAL INDEX ; GENERALIZED PARETO DISTRIBUTION ; SPATIAL INTERPOLATION
Subjects: Q Science > QA Mathematics
Departments: Faculty of Science and Technology > Mathematics and Statistics
ID Code: 2448
Deposited By: ep_importer
Deposited On: 29 Mar 2008 16:43
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:25
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/2448

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