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Sustainability 2017, 9(11), 2076; doi:10.3390/su9112076

Impact Assessment of Pollutant Emissions in the Atmosphere from a Power Plant over a Complex Terrain and under Unsteady Winds

Dipartimento di Ingegneria Enzo Ferrari, Università di Modena e Reggio Emilia, via P. Vivarelli 10, 41125 Modena, Italy
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Received: 4 October 2017 / Revised: 1 November 2017 / Accepted: 7 November 2017 / Published: 11 November 2017
(This article belongs to the Section Sustainable Engineering and Science)
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Abstract

The development of a natural gas-fired tri-generation power plant (520 MW Combined Cycle Gas Turbines + 58 MW Tri-generation) in the Republic of San Marino, a small independent country in Northern Italy, is under assessment. This work investigates the impact of atmospheric emissions of NOx by the plant, under the Italian and European regulatory framework. The impact assessment was performed by the means of the Aria Industry package, including the 3D Lagrangian stochastic particle dispersion model SPRAY, the diagnostic meteorological model SWIFT, and the turbulence model SURFPRO (Aria Technologies, France, and Arianet, Italy). The Republic of San Marino is almost completely mountainous, 10 km west of the Adriatic Sea and affected by land-sea breeze circulation. SPRAY is suitable for simulations under non-homogenous and non-stationary conditions, over a complex topography. The emission scenario included both a worst-case meteorological condition and three 10-day periods representative of typical atmospheric conditions for 2014. The simulated NOx concentrations were compared with the regulatory air quality limits. Notwithstanding the high emission rate, the simulation showed a spatially confined environmental impact, with only a single NOx peak at ground where the plume hits the hillside of the Mount Titano (749 m a.s.l.), 5 km west of the future power plant. View Full-Text
Keywords: dispersion model; tri-generation power plant emission; atmospheric dispersion; NOx; complex topography dispersion model; tri-generation power plant emission; atmospheric dispersion; NOx; complex topography
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ghermandi, G.; Fabbi, S.; Arvani, B.; Veratti, G.; Bigi, A.; Teggi, S. Impact Assessment of Pollutant Emissions in the Atmosphere from a Power Plant over a Complex Terrain and under Unsteady Winds. Sustainability 2017, 9, 2076.

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