Bagasse boiler in cane sugar industry India
The economic viability of the cane sugar industry largely depends upon the use of bagasse as a fuel to generate power and process steam. In a well balanced raw sugar factory the quantity of bagasse available should be just sufficient to meet the total energy load.
Unbalanced factories may experience a short fall or surplus of bagasse in which case either costly auxiliary fuels have to be used or costly bagasse disposal techniques employed. Where off crop outside power and irrigation loads are high, these can be met either by increasing factory thermal efficiency and stock piling baled bagasse for use during the off crop or by burning an auxiliary fuel. This choice is dependent upon local conditions.
Energy in the cane sugar mill of biomass fired boiler
The remaining fibrous solids, called bagasse, are burned for fuel in the cane sugar mill’s steam boilers. These boilers produce high-pressure steam, which is passed through a turbine to generate electrical energy (cogeneration).The exhaust steam from the turbine is passed through the multiple effect evaporator station and used to heat vacuum pans in the crystallization stage as well as for other heating purposes in the cane sugar mill.
Bagasse makes a sugar mill more than energy self-sufficient; surplus bagasse goes in animal feed, in paper manufacture, or to generate electricity for sale