Authors: Stefano Alessandrini; Enrico Ferrero
Addresses: RSE (Research on Energy Systems), via Rubattino 54, Milano, Italy ' Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Teresa Michel, 11, 15121 Alessandria, Italy
Abstract: In this work, a Lagrangian particle model able to account for simple chemical reactions between NO and O3 has been improved to consider the photolysis of NO2. A system of chemical equations is numerically solved on a Eulerian grid, while the particle trajectories are moved in a Lagrangian frame. The NOx emissions of a power plant in real atmosphere, situated in a complex topography environment, have been considered as a test case. The simulated episodes refer to the diurnal time, when the ultraviolet radiation activates the NO2. Comparisons between NO/NO2's concentrations ratio are presented in terms of scatter plots and statistical indexes analysis.
Keywords: atmospheric dispersion; nitrogen oxides; NOx emissions; chemistry models; Lagrangian particle model; photo-stationary equilibrium; air quality; air pollution; dispersion modelling; power plant emissions.
International Journal of Environment and Pollution, 2011 Vol.47 No.1/2/3/4, pp.97 - 107
Received: 08 May 2021
Accepted: 12 May 2021
Published online: 14 Jun 2012 *