Inter-comparison of transboundary atmospheric dispersion calculations: A summary of outputs from the ASEAN NPSR benchmark exercise
| Autor: | Somboon Rassame, Tang Jia Hao, Kampanart Silva, Hoang Sy Than, Nguyen Hao Quang, Chung Keng Yeow, Tom Charnock, Pham Kim Long, Wasin Vechgama, Piyawan Krisanungkura, Vitesh Krishnan, Narakhan Khunsrimek, Tay Bee Kiat, Pham Duy Hien |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Meteorology
020209 energy Gaussian Energy Engineering and Power Technology 02 engineering and technology 010501 environmental sciences Wind direction Atmospheric dispersion modeling 01 natural sciences law.invention Term (time) symbols.namesake Nuclear Energy and Engineering law Benchmark (surveying) Nuclear power plant 0202 electrical engineering electronic engineering information engineering symbols Environmental science Statistical dispersion Safety Risk Reliability and Quality Waste Management and Disposal Lead time 0105 earth and related environmental sciences |
| Zdroj: | Progress in Nuclear Energy. 135:103718 |
| ISSN: | 0149-1970 |
| Popis: | Previous nuclear power plant (NPP) severe accidents have raised great concern in Southeast Asia on the issue of transboundary atmospheric dispersion of an accidental release from an external NPP. This study presents the inter-comparison of atmospheric dispersion calculations performed by different calculation codes employing Lagrangian particle model or Gaussian puff model with Southeast Asia weather data during the northeast monsoon period. The test case is a hypothetical accident in Fangchenggang NPP with a hypothetical source term. Radionuclide concentration and radiation dose distribution maps along with specified values at specific locations are compared to demonstrate the similarities and differences of each calculation code. All calculation codes can generally capture the dispersion pathway, though only those employing Lagrangian particle model can record microscale changes in wind direction. Analysis of predicted exposure extent and lead time shows that radioactive plume contributing to the radiation dose of several μSv/day can reach one or more ASEAN countries within the 24-h timeframe. This information can be used to design appropriate risk communication strategy to dispel unnecessary public anxiety or to plan for more extensive radiation monitoring capability. For this purpose, Gaussian puff model can be used to provide initial information which can be later confirmed by Lagrangian particle model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect