Oceanic Radionuclide Dispersion Method Investigation for Nonfixed Source from Marine Reactor Accident. (18th April 2022)

• Record Type: Journal Article
• Authors: Guo, Dingqing; Wang, Jinkai; Ge, Daochuan; Chen, Chunhua; Chen, Liwei
• Other Names: Ivanov Peter Academic Editor.
• Is Part Of: Science and technology of nuclear installations. Volume 2022(2022)
• Publication Date: 2022-04-18
• Subjects: Nuclear engineering -- Periodicals; Nuclear facilities -- Periodicals; Nuclear engineering; Nuclear facilities; Electronic journals; Periodicals; 621.48
• DOI: 10.1155/2022/2822857
• Languages: English
• ISSNs: 1687-6075

Abstract

Abstract : Radionuclide dispersion model, which is of critical importance to the emergency response of severe nuclear accident, is used to estimate the consequences arising from accidental or routine releases and to predict areas of high contamination. It is difficult to evaluate the radioactive consequence accurately and rapidly for the accidental release of radionuclides from marine reactor because of the complex mobility feature in the sea. Based on CFD method, a finite-volume, three-dimensional regional oceanic dispersion model was developed in this paper to simulate the dispersion of radionuclides originating from marine reactor. The simulated dose variation of 137Cs presented good agreement with the monitoring data of marine radioactive pollution caused by Fukushima Dai-ichi nuclear accident, which demonstrated the validity of the method. A severe accident scenario of marine reactor was simulated and analyzed, which indicates that the regional oceanic dispersion model can provide dose assessment for nuclear emergency response.