Multicriteria Relocation Analysis of an Off-site Radioactive Monitoring Network for a Nuclear Power Plant |
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Authors: | Ni-Bin Chang Shu-Kuang Ning Jen-Chang Chen |
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Institution: | (1) Department of Civil and Environmental Engineering, University of Central Florida, Orlando, Florida 32816, USA;(2) Department of Civil and Environmental Engineering, National University of Kaohsiung, Nan-Tzu District 811, Kaohsiung, Taiwan;(3) U-Tech Technology Corporation, Kaohsiung, Taiwan |
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Abstract: | Due to increasing environmental consciousness in most countries, every utility that owns a commercial nuclear power plant
has been required to have both an on-site and off-site emergency response plan since the 1980s. A radiation monitoring network,
viewed as part of the emergency response plan, can provide information regarding the radiation dosage emitted from a nuclear
power plant in a regular operational period and/or abnormal measurements in an emergency event. Such monitoring information
might help field operators and decision-makers to provide accurate responses or make decisions to protect the public health
and safety. This study aims to conduct an integrated simulation and optimization analysis looking for the relocation strategy
of a long-term regular off-site monitoring network at a nuclear power plant. The planning goal is to downsize the current
monitoring network but maintain its monitoring capacity as much as possible. The monitoring sensors considered in this study
include the thermoluminescence dosimetry (TLD) and air sampling system (AP) simultaneously. It is designed for detecting the
radionuclide accumulative concentration, the frequency of violation, and the possible population affected by a long-term impact
in the surrounding area regularly while it can also be used in an accidental release event. With the aid of the calibrated
Industrial Source Complex–Plume Rise Model Enhancements (ISC-PRIME) simulation model to track down the possible radionuclide
diffusion, dispersion, transport, and transformation process in the atmospheric environment, a multiobjective evaluation process
can be applied to achieve the screening of monitoring stations for the nuclear power plant located at Hengchun Peninsula,
South Taiwan. To account for multiple objectives, this study calculated preference weights to linearly combine objective functions
leading to decision-making with exposure assessment in an optimization context. Final suggestions should be useful for narrowing
the set of scenarios that decision-makers need to consider in this relocation process. |
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Keywords: | Nuclear power plant Monitoring network Multi objective programming Multi criteria decision-making Air quality model ISC-PRIME |
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