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Summary of Air Dispersion Modelling of the proposed power plant at Patenga, Chittagong, Bangladesh

Project Title:   Summary of Air Dispersion Modelling of the proposed power plant at Patenga, Chittagong, Bangladesh
Type of Project Air Dispensor Modelling
Duration:   January 2012 - April 2012 (Three Months)
Status:   Complete
Partner Organizations:   EPCV Chittagong Ltd.
Key words: AERMOD, ISC-PRIME, mixing height, Monin-Obukhov length, surface roughness length, windroses
Main Objective:   To determine the affected zone around an emitter by producing results that can be compared against impact assessment criteria
Brief Description: Dispersion models are widely used by environmental regulators in almost all the countries. The results have been shown, through numerous model evaluation studies, to be sufficiently robust to be relied on to calculate concentration limits for point-source stack emissions. An air dispersion modelling was completed to predict ground level concentrations (GLCs) of different pollutants (NOx, SO2, CO, PM10, PM2.5) for the required averaging period across modelled domain (7.5km  7.5 km around the stack). Since ISC3P requires a smaller suite of meteorological data inputs than AERMOD, the former (ISC3P) has been selected for this project. To facilitate collection of background air quality data taking wind direction into consideration, six windroses for the year 2010 are given for the months January, March, May, July, September and November, covering 6 seasons of the year.
Output Modelling results indicate that emission around the power plant site during the operation of the plant will remain much below the DOE and WB standards. There will therefore, be no environmental and health hazard due to the operation of this 108 MW HFO-based power plant at the specified location of Patenga.
Contact Person Dr. M.Eusuf, Bangladesh Centre for Advanced Studies (BCAS),
Email: muhammad.eusuf@bcas.net
Website: www.bcas.net
Documents Download Full Description
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