Formulation, application and evaluation of a stack emission model for coal-based power stations

Estimation of coal power plant emissions is a vital step to visualise emission trends with respect to specific policy implementations and technological interventions so that their effectiveness in terms of emission reductions and ambient air quality improvement can be quantitatively assessed. However, research work concerning stack emission estimations specifically for coal power plants in India is limited. To bridge the present gap, we present a plant-specific multi-year and multi-parameter Coal Power Stack Emission Model. This model has been developed to explore current and historical annual stack emissions from a coal-based thermal power plant taking into account essential variables such as coal characteristics, process attributes and control equipment aspects, which can significantly influence the stack emissions. This study concentrates on development of Coal Power Stack Emission model and its application for the estimation of plant and year-specific emission factors and stack emissions for a coal-based power plant at Badarpur, New Delhi, for the period of 2000–2008. The validation of Coal Power Stack Emission model has also been successfully carried out by comparing the trends of percentage change in annual emission estimates and observed ambient air concentrations of total suspended particles, PM10 and sulphur dioxide at two nearby air quality monitoring stations, namely Siri Fort and Nizamuddin.

[1]  Amit Garg,et al.  The sectoral trends of multigas emissions inventory of India , 2006 .

[2]  M. Radojević,et al.  Computer simulated versus observed NO2 and SO2 emitted from elevated point source complex , 2007 .

[3]  M. Molina,et al.  Estimating Air Pollution Emissions From Fossil Fuel Use in the Electricity Sector in Mexico , 2004 .

[4]  S. Soltanali,et al.  Economic evaluation for air pollution control technologies selection in power plants processes , 2008 .

[5]  J. Hao,et al.  Trend and characteristics of atmospheric emissions of Hg, As, and Se from coal combustion in China, 1980–2007 , 2010 .

[6]  B. R. Gurjar,et al.  Emission Estimates and Trends (1990-2000) for Megacity Delhi and Implications , 2004 .

[7]  Ishita Sengupta.  Regulation of suspended particulate matter (SPM) in Indian coal-based thermal power plants , 2004 .

[8]  C. Venkataraman,et al.  Inventory of aerosol and sulphur dioxide emissions from India: I—Fossil fuel combustion , 2002 .

[9]  Andrew P. Jones,et al.  Mercury Capture and Fate Using Wet FGD at Coal-Fired Power Plants , 2006 .

[10]  János M. Beér,et al.  High efficiency electric power generation: The environmental role , 2007 .

[12]  Mukesh Khare,et al.  General plume dispersion model (GPDM) for point source emission , 2006 .

[13]  S. Raghuvanshi,et al.  Carbon dioxide emissions from coal based power generation in India , 2006 .

[14]  Subhodip Ghosh.  Status of thermal power generation in India—Perspectives on capacity, generation and carbon dioxide emissions , 2010 .

[15]  Jiming Hao,et al.  Primary air pollutant emissions of coal-fired power plants in China: Current status and future prediction , 2008 .

[16]  Niladri Chakraborty,et al.  Measurement of CO2, CO, SO2, and NO emissions from coal-based thermal power plants in India , 2008 .

[17]  Neil Hewitt,et al.  Comparative assessment of sub-critical versus advanced super-critical oxyfuel fired PF boilers with CO2 sequestration facilities , 2007 .

[18]  Govinda R. Timilsina,et al.  SO2 emission intensities of the power sector in Asia : Effects of generation-mix and fuel-intensity changes , 1997 .