Energy and Exergy Analysis of Combined Cycle Cogeneration System

Abstract� For the Effective energy utilization and its management to minimizing irreversibility has made human to look for efficient energy consumption & conversion. The energy supply to demand narrowing down day by day around the world, the growing demand of power has made the power plants of scientific interest, but most of the power plants are designed by the energetic performance criteria based on first law of thermodynamics only. The real useful energy loss cannot be justified by the fist law of thermodynamics, because it does not differentiate between the quality and quantity of energy. The aim of this research work is the comparison of energy and exergy analysis of cogeneration power plants. In this thesis work calculation of energy loss and exergy destruction of various components of Indian Glycol cogeneration thermal power plant has been done. And also first law efficiency and second law efficiency is shown. The first law efficiency of boiler is calculated by means of direct method proposed by Shieh and Fan and it is observed that the boiler has the maximum energy loss among all the components of power plant. There is a future scope of improvement in boiler to increase the overall efficiency of Indian Glycol Cogeneration Thermal Power Plant.