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Gabriele Curci 1 , Paolo Tuccella 1 , Giovanni Cinque 2 , Guido Visconti 1

Impact of a renewable biomass energy power plant in urban landscape with complex terrain in Central Italy: modelling assessment and suggestions for monitoring site. Gabriele Curci 1 , Paolo Tuccella 1 , Giovanni Cinque 2 , Guido Visconti 1. 1 CETEMPS - Dip. Fisica

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Gabriele Curci 1 , Paolo Tuccella 1 , Giovanni Cinque 2 , Guido Visconti 1

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  1. Impact of a renewable biomass energy power plant in urban landscape with complex terrain in Central Italy:modelling assessment and suggestions for monitoring site Gabriele Curci1, Paolo Tuccella1, Giovanni Cinque2, Guido Visconti1 1 CETEMPS - Dip. Fisica Università dell’Aquila, Italy gabriele.curci@aquila.infn.it 2 HIMET S.r.l. L’Aquila, Italy EGU 2011, 8 April, Vienna

  2. RENEWABLE BIOMASS ENERGY:AN ATMOSPHERIC PHYSICIST/CHEMIST’S POINT OF VIEW CO2 CO2 net source Very nice! CO2 neutral cycle Energy Biomass energy plant Biomass Fossil fuels

  3. RENEWABLE BIOMASS ENERGY:AN ATMOSPHERIC PHYSICIST/CHEMIST’S POINT OF VIEW But … CO2 Climate impact CO, NOx, SOx, VOCs, aerosol aerosol, ozone incomplete combustion (10-60% C mass) Landuse impact Air Quality impact Acidification, Euthrophica-tion Biomass energy plant Biomass

  4. NEW INSTALLATION SITE: L’AQUILA

  5. NEW INSTALLATION SITE: TOPOGRAPHY AND WINDS shallow winter PBL* - night 150 ± 100 m - day 600 ± 300 m DAY NIGHT * [Cinque et al., 2000]

  6. POLLUTANT LEVELS: AIRBASE L’AQUILA STATION Suburban station, representative of an area ~50 km2 no ozone exceedances 180 µg/m3 50 µg/m3 several PM10 exceedances

  7. MODELLING ASSESSMENT AT LOCAL SCALE: CALMET/CALPUFF CALMET meteorological processor Mesoscale Weather model (MM5): 3 km resolution + Weather Station Weather station + + Biomass plant Landuse 250 m Topography 250 m = 3-D meteorological fields (winds, T, RH, PBL, turbulence, …) at 250 m resolution

  8. MODELLING ASSESSMENT AT LOCAL SCALE: CALMET/CALPUFF CALPUFF dispersion model CALMET meteo fields Point source EMISSIONS PUFF MODEL sketch from D. Jacob GRIDDED SURFACE CONCENTRATIONS gas: SO2, NOx, HNO3 & aerosol: SO4, NO3, PM10

  9. POINT SOURCE EMISSIONS AND PREVIOUS ASSESSMENT * FUTURIS AQUILANA S.R.L. (the building firm) http://www.collettivo99.org/site/?p=2501

  10. SAMPLE CALPUFF OUTPUT: SULFUR DIOXIDE (SO2) 6-7 January 2008 Biomass Plant Residential areas and Villages All CALMET/CALPUFF simulations with US EPA recommended configurations

  11. IMPACT ON SULFUR DIOXIDE (SO2) January 2008 July 2008 Declared: +6.3 µg/m3 Monthly average impact Peak impact

  12. IMPACT ON NITROGEN DIOXIDE (NO2) January 2008 July 2008 Declared: +16 µg/m3 Monthly average impact NO2 threshold of 200 µg/m3 exceeded! Peak impact

  13. IMPACT ON PARTICULATE MATTER (PM10) January 2008 July 2008 Declared: +0.96 µg/m3 Monthly average impact Peak impact

  14. SUGGESTED MONITORING SITE EU DIRECTIVE 2008/50/EC ANNEX III B. Macroscale siting of sampling points (e) Where contributions from industrial sources are to be assessed, at least one sampling point shall be installed downwind of the source in the nearest residential area. Where the background concentration is not known, an additional sampling point shall be situated within the main wind direction. • No residential area perfectly aligned with main wind direction. • Two suggested sites: • Closest site to the main wind axis • Site aligned to secondary wind direction

  15. CONCLUSIONS AND OUTLOOK • Biomass energy is an attractive solution for mitigation of climate change, but has drawbacks related to its impact on landuse and air quality that should be considered • We applied CALMET/CALPUFF to the case of L’Aquila future biomass power plant and found that the source may episodically yield exceedances of NO2 and PM10 within 1-2 km from the source • The impact of plant emissions are limited to 5-6 km along the main wind axis (valley), but hit residential areas • Further verification of results against model assumptions is recommended • Assessment of the optimal monitoring site not yet conclusive

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