Quantitative safety goals for fusion power plants: Rationales and suggestions
- 13 January 2021
- journal article
- research article
- Published by Hindawi Limited in International Journal of Energy Research
- Vol. 45 (6), 9694-9703
- https://doi.org/10.1002/er.6399
Abstract
“How safe is safe enough?” is a key and fundamental question for any risky engineering and safety goals has been extensively studied in many fields, such as chemical industry, nuclear industry, etc. Fusion reactors are advanced nuclear reactors which are expected to be more attractive in terms of safety and environmental impact, and remarkable progress has been made toward the realization of fusion energy in this regard. However, fusion safety is not guaranteed automatically: accidents could happen with any possible future fusion reactor, potentially resulting in releases of radioactive materials. Meanwhile, there are also safety issues about radioactive wastes and occupational exposure, due to high neutron radiation produced in the reactor. To ensure the safety of fusion reactors from the origin, defining safety goals is very necessary to guide reactor design. In this paper, the evolution of safety goals for nuclear reactors is reviewed and a hierarchical framework for fusion quantitative safety goals is established in the four aspects of occupational radiation exposure, routine releases of radioactive materials, accidents and radwastes, based on the characteristics of fusion reactors from a designer's perspective as well as the experiences from the pressurized water reactor, Generation‐IV, and International Thermonuclear Experimental Reactor. These safety goals will provide reference for designers of fusion reactors These safety goals will be helpful to guide the designer of fusion reactors to seek and develop appropriate means to enhance safety.Funding Information
- Ministry of Science and Technology of the People's Republic of China (2019YFE0191600)
- National Natural Science Foundation of China (51906249)
This publication has 28 references indexed in Scilit:
- Quantitative guidance on how best to respond to a big nuclear accidentProcess Safety and Environmental Protection, 2017
- J-value assessment of remediation measures following the Chernobyl and Fukushima Daiichi nuclear power plant accidentsProcess Safety and Environmental Protection, 2017
- Overview of the present progress and activities on the CFETRNuclear Fusion, 2017
- Identification of safety gaps for fusion demonstration reactorsNature Energy, 2016
- Overview of the design approach and prioritization of R&D activities towards an EU DEMOFusion Engineering and Design, 2015
- Comparison of the Chernobyl and Fukushima nuclear accidents: A review of the environmental impactsScience of The Total Environment, 2014
- Lessons learnt from PSA for new and advanced reactors in RussiaKerntechnik, 2011
- The Future of Nuclear Power: Value Orientations and Risk PerceptionRisk Analysis, 2009
- "Acceptable Risk": The Case of Nuclear PowerJournal of Policy Analysis and Management, 1983
- Risk Analysis: Understanding “How Safe is Safe Enough?“Risk Analysis, 1981