Abstract
With the development of society, people become more and more dependent on energy. In present scenario, coal is the major fuel for energizing the economy. India is the 6th largest country in terms of power generation. In India major part of the electricity produced from thermal power plant. Thermal power plants use coal, petroleum or natural gas to produce electricity among which coal is the major source. Coal burning in power plant releases a significant amount of CO2, NO, SOx, and airborne inorganic particles in the environment. In this research paper, an approach has been made to evaluate total emission of CO2 (in particular) along with NO, SOx and Hg from these thermal power plants. In Indian power plants different qualities of coal are used with different combustion technology and operating condition. The study reveals that CO2 emission/release from these thermal power plants is expected to increase from 589 Mt/year (2010) to 1007 Mt/year (2020) if no proper step will be taken in this respect. SO2 emissions increased from 3.04 Mt/year in 2010 to 5.20 Mt/year in 2020, while NO emissions increased from 0.90 to 1.54 Mt/year during this period. Since pollution becomes the threat to the environment, it is very important to improve the existing technology used in thermal power plants, clean coal technology are one of them. Role of different clean coal technologies like supercritical (SC), ultra-supercritical (USC), etc., in the reduction of CO2 emission are also discussed and it was found that maximum of 33% of the reduction can be obtained in case of more efficient clean coal technology, although per kw electricity generation cost is more in advance technology.
Published Version
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