Energy and Exergy Analysis of Extraction cum Back Pressure Steam Turbine
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 2
Abstract
Abstract: Power is very vital factor for development of any society. Coal shares major chunk of fuels used to produce power in thermal power plants in India. Coal reserves are limited and present coal consumption rate is in increasing trend to fulfill the power demand. Therefore energy efficiency and energy conservation are of prime importance. Moreover, fossil fuel based power plant has significant negative environmental impacts. Energy and exergy analysis are used to analyze the performance of thermal systems. Energy analysis deals with quantity aspect whereas exergy analysis deals with quality aspect in addition to quantity. Exergy analysis focuses on magnitude and true location of energy loss. In this analysis, energy efficiency, exergy destruction, exergy efficiency and turbine heat rate are evaluated at 70 % and 85 % maximum continuous rating (MCR) of steam turbine. Analysis shows that operating turbine at 85 % MCR attract heat rate improvement by 17.01 kJ / kWh, which reduces CO2 emission by 26.89 kg/h, SO2 emission by 26.89 kg/h and ash generation by 41.47 kg/ day.
Authors and Affiliations
A. H. Ran
Keywords
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