OPPURTUNITIES FOR ENERGY SAVING IN SUGAR FACTORY BASED ON CO GENERATION PLANT

Energy may be defined as the capacity for vigorous activity. Energy is present in nature in various forms. The various forms of energy used by mankind for different purposes consist for lighting, heating, cooking, running machinery, transportation and for other applications. It is crucial resource for all nation building activities, which keep the country’s wheels of progress moving at an accelerated pace. Without energy the activities of mankind will come to a standstill and the life on the earth become impossible.  Energy may be derived from coal, oil, gas, biofuels such as wood, vegetable oil, bagasse. The term audit signifies an analysis of the input and output parameters to evaluate discrepancies if any. Energy audit also aims to identifying, evaluating and analyzing various forms of energy input and output. But the scope of the energy audit does not end here. With the help this information, potential areas of energy conservations are identified so as to review. The specific energy input both in terms of cost as well as absolute quantity. an attempt is made to collect exhaustive data, calculation of boiler and turbine efficiency for cogeneration, before overhaul and after overhaul. From the observations and calculation performed in previous chapter the following results are drawn. The boiler efficiency has increased from 49.54% to 56.98%. The turbine underwent capital overhaul and has improved in performance from 38.07% to 38.13%

DESIGN AND ANALYSIS OF BAGASSE DRYER TO RECOVER ENERGY OF WATER TUBE BOILER IN A SUGAR FACTORY

The prices of sugar cane, sugar produced and molasses are fixed by the government authorities, hence the only method for generating profits for sugar mills is by reducing manufacturing cost where steam and fuel economy plays an important role. The aim of the present research work is to reduce the moisture content of the bagasse by designing the counter flow heat exchanger configuration to increase the dryness fraction of the bagasse. The proposed design of Bagasse Drier consists of a device wherein the hot flue gases are indirectly mixed with the wet bagasse falling on the conveyer plate from the crushing section. Є-NTU method is used for analysis of counter flow heat exchanger and 1-D conductive heat transfer is considered across a thin plate. Reduction of dryness fraction of bagasse has increased its GCV from 9471.378KJ/kg to 11818.122 KJ/kg which enhanced boiler efficiency by 63.288% to 72.877%.  The wet bagasse dried up from 50.30% to 38.115%