Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Prediction of extreme temperatures in a reactor using measurements affected by control action.
AU - Tunnicliffe Wilson, Granville
AU - Logsdon, J.
AU - Scarrot, C.
N1 - RAE_import_type : Journal article RAE_uoa_type : Statistics and Operational Research
PY - 2003/5/1
Y1 - 2003/5/1
N2 - 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.
AB - 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.
KW - EXTREMAL INDEX
KW - GENERALIZED PARETO DISTRIBUTION
KW - SPATIAL INTERPOLATION
U2 - 10.1198/004017003188618797
DO - 10.1198/004017003188618797
M3 - Journal article
VL - 45
SP - 159
EP - 168
JO - Technometrics
JF - Technometrics
SN - 1537-2723
IS - 2
ER -