Analysis for Efficiency Improvement and Fuel Savings Opportunities in Thermal Power Plant

Abstract

The availability of electrical energy is regarded as an index of progress. In India, still the major portion of electrical energy produced from thermal power stations using fossil fuels. In present scenario the per capita energy consumption determines the level of development of the nation. The energy supplies to demand narrowing down every day around the world. The growing energy demand overcome by implementing new concept into the existing system. This present work deals the way of reducing the losses in power plant and improving the performance of existing lignite fired thermal power plant. Lignite is considered as a domestic and abundant energy source for several countries. However its high moisture content has a negative effect on power plant. The aim of present work is to analyse the new concept and technology for improving overall performance and fuel savings. This paper discusses the concept of utilising the heat of flue gas for pre-drying the lignite to achieve the fuel savings about 40%. The waste heat energy used for drying the lignite before entering into the boiler unit increased the efficiency of boiler and reduced the fuel consumption. Because reduction in the flue gas temperature will save the fuel. This also reviews the concept of reducing the environmental effect caused due to CO₂ emissions by installing CO₂ capturing unit using dry regenerable solvent as a absorber in existing power plant. By implementing the proposed concept, the improvement in efficiency and fuel savings can be achieved.