Mathematical modeling of environmental impacts of a reactor through the air

Abstract

This paper presents an algorithm for the calculation of internal and external doses as an integral part of the mathematical model of atmospheric dispersion. The air pollution dispersion model is used on average annual activity concentration in the air, deposition on soil and field of total annual dose to a hypothetical resident contaminated by air in the vicinity of a nuclear reactor. The results of modeling were compared with values from an IAEA publication for a given scenario of radionuclide emission to the atmospheric boundary layer. Due to small differences in the results, compared to the IAEA recommended model, the model presented in the paper can be used as a basis for this type of analysis. [Projekat Ministarstva nauke Republike Srbije, br. III 45003, br. III 43009 i br. 171007]

Assessment of atmospheric dispersion stability based on the atmospheric boundary layer monitoring at the Belorussian nuclear power plant site

“…The Pasquill-Vogt at mo spheric sta bil ity class sys tem used [16,17] has a sig nif i cant ad van tage over other sys tems, for ex am ple, the Pasquill at mo spheric sta bil ity classes and their mod i fi ca tions, are widely applied in the ABL state stud ies in the vi cin ity of nuclear fa cil i ties and ther mal power plants [16][17][18][19]. Stabil ity classes make it pos si ble to de ter mine the depend ence of the pa ram e ters of ver ti cal and hor i zon tal dis per sion of con tam i nants in the ABL, un der dif ferent weather con di tions, used in math e mat i cal mod els for cal cu lat ing the con cen tra tion fields of con tam inants.…”

Development of mathematical models of gas leakage and its propagation in atmospheric air at an emergency gas well gushing

“…There are many papers devoted to theoretical studies of atmospheric turbulence and spread of industrial releases. For example, turbulent exchange in an elevated inversion layer is studied in [16], influence of anomalous stratification on initial rise of pollution caused by releases from a technogenic source is considered in [17] and influence of wind speed variation with altitude on distribution of technogenic pollutants in the near-surface atmosphere layers is studied in [18]. However, physical patterns of release, transfer, and dispersion of natural gas in the event of emergency releases are characterized by a considerable complexity and differ significantly from classical releases, such as those from chimneys.…”

Kondisi Arus Pasang Surut dan Angin di Perairan Sekitar PLTU Muara Karang sebagai Indikator Persebaran NORM

“…(2019) di PLTU Tanjung Jati yaitu sebesar 6-8 m/s. BerdasarkanNikezić et al (2014) stabilitas atmosfer akan terjadi saat angin kencang (di atas 6 m/s) dan batas kecepatan angin untuk mengangkat debu adalah sekitar 10 m/s, namun stabilitas juga dapat terjadi pada kecepatan angin rendah jika terdapat sumber debu yang aktif seperti cerobong asap. Oleh sebab itu fly ash yang keluar dari cerobong PLTU cenderung terdistribusi sesuai dengan arah dominan angin yaitu pada sebelah barat laut dan utara, kemudian jatuh ke lingkungan sekitar PLTU yang didominasi perairan laut Nikezić et al (2017).…”