VW Engineering International, Volume: 4, Issue: 2, 59-65
Received: June 07, 2022
Accepted: June 22, 2022
Published online: June 23, 2022
Yusuf Parvez1,*, Ravinder Kumar2
1Mechanical Engineering, Maulana Azad National Urdu University, Cuttack, Odisha, India.
2Mechanical and Automation Engineering, Indira Gandhi Delhi Technical University for Women, New Delhi, India.
Abstract: Cogeneration, the combined generation of heat and power, is an efficient method to reduce cost or to save energy and hence, reduce pollution. A large number of thermal process industries have this option to install cogeneration systems and sugar mill is one of them. In this work, energy, and exergy analysis of a sugar mill running on cogeneration system, having a back pressure turbine system, has been carried out. Based on the operational data received from the industry, a detailed analysis of the system has been performed. It was found that the output power and excess power of the plant increase with the increase in the boiler pressure and therefore, increase the cogeneration efficiency. Also, it was noticed that when the back pressure increases, the turbine output and cogeneration efficiency decrease, Heat to Power Ratio (HPR) spans over a range of 2.79 to 4.07. From the exergy analysis of the plant, it is observed that the boiler is the main component for exergy destruction. The energy analysis of the bagasse-fired boiler was carried out and the results showed that energy efficiency was high up to 84.5%. However, the second law efficiency gave 28.5% and the irreversibility rate associated with the combustion chamber was 62.19 MW which accounts for 55.09% of the total fuel exergy.
Keywords: Sugar industry, Cogeneration, Back pressure turbine, Energy analysis, Exergy analysis,
