Abstract: The demand for energy is increasing day by day. The energy for the world depends heavily on fossil fuels for electricity generation. It is also expected to continue the dependence on fossil fuels for next few decades. So it is important to note that this plants must reduce their environmental impact by operating fossil fuels more effectively. Energy analysis based on first law of thermodynamics cannot be applied as it cannot justify the real useful energy loss because it does not differentiate between quality and quantity of energy within the system. Whereas exergy analysis will characterize the work potential of a system based on the second law of thermodynamics and the maximum work that can be obtained from the system when its state is brought to the reference or dead state. The paper presents the results of energy and exergy analysis of boiler and extraction cum condensing steam turbine of 18.9 MW cogeneration plant. It is seen that maximum exergy destruction occurs in boiler particularly during combustion process. The energy analysis of boiler and steam turbine is 66.08 % and 78.26% while exergy analysis of boiler and steam turbine is 42.55% and 74.74 % respectively. The exergy destruction in boiler is 31.472 MW.
Keywords: Energy, Efficiency, Exergy, Exergy destruction, power plant, cogeneration.
Title: Energy and Exergy Analysis of Boiler and Extraction cum Condensing Steam Turbine in Sugar Cogeneration Plant
Author: V.H. Bhagat, A.I.Rehman, D.N.Hatkar
International Journal of Interdisciplinary Research and Innovations
ISSN 2348-1218 (print), ISSN 2348-1226 (online)
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