Diffusion in building wakes for ground-level releases |
| |
| Institution: | 1. Institute for Energy Technology – OECD Halden Reactor Project, Halden, Norway;2. Division of Applied Nuclear Physics, Uppsala University, Uppsala, Sweden;3. Westinghouse Electric Sweden AB, Fredholmsgatan 22, 72163 Västerås, Sweden;1. Department of Nuclear Engineering, Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Iran;2. Department of Energy Engineering, Sharif University of Technology, Tehran, Iran;1. Fuel Development Branch, Canadian Nuclear Laboratories, Chalk River, ON K0J 1J0 Canada;2. Fuel and Fuel Channel Safety Branch, Canadian Nuclear Laboratories, Chalk River, ON K0J 1J0 Canada;3. Canadian Neutron Beam Centre, Chalk River, ON K0J 1J0 Canada;1. Paul Scherrer Institute, Switzerland;2. INSET s.r.o (ex-Paul Scherrer Institute), Switzerland;1. School of Mechanical Engineering, The University of Leeds, Leeds LS2 9JT, UK;2. ExxonMobil Research and Engineering Company, Paulsboro Technical Centre, 600 Billingsport Road, Paulsboro, NJ 08066, USA;3. School of Chemistry, The University of Leeds, Leeds LS2 9JT, UK;4. The University of Sheffield, Department of Mechanical Engineering, Mappin Street, S1 3JD, UK |
| |
| Abstract: | A time-based model for estimating centerline concentrations from ground-level releases in building wakes is developed from theoretical considerations. Variables in the model are distance from the release point, wind speed, atmospheric stability, and projected building area. The model is evaluated using experimental data obtained in experiments made at seven nuclear reactor sites, and is compared with other building-wake diffusion models. The new model is slightly biased with a median ratio between predicted and observed concentrations of 1.07 and accounts for about 55% of the variation in the observed concentrations. Previous models have median ratios between predicted and observed concentrations greater than 2 and account for less than 30% of the observed variation in concentrations. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
