How Cane Sugar is Made - The Energy Aspects
The steam is raised in bagasse fired boilers which usually have a secondary fuel to accommodate imbalances in bagasse supply and steam or power demand. The factory designer attempts to balance the site such that bagasse is neither left over nor insufficient: any secondary fuel costs money and a large surplus of bagasse may cost money to dispose. Balancing is done by selecting the right mix of turbine and electric drives for major equipment and selecting the pressure of the steam to give the efficiency required. In many cases this does not recognise the full energy value of the bagasse and is therefore wasteful in an overall sense. Today, more and more factories are considering power export as another by-product of sugar production. To do this they are improving the efficiency of their thermodynamic cycles and converting equipment drives to optimise power output.
Factories are frequently in very undeveloped places and have no connection to an external power supply. This requires special techniques to start the factory and means that any breakdown in the power house impacts on the entire neighbourhood. Wives soon tell their husbands what happened to dinner when their spouses lost power!
Do you want to know more about bagasse fired boilers? Try the web domain of Thermal Energy Systems.