# Boiler Evaporation Coefficient

The evaporation coefficient is the quantity of steam in tons generated per ton of fuel consumed. The gross evaporation coefficient

x

is given by
x = η_{B}·HCV / (h_{st} - h_{fw})

where

- ηis the boiler efficiency, based on HCV
_{B} - HCVis the Higher Calorific Value of the fuel
- his the enthalpy of the high pressure steam
_{st} - his the enthalpy of the feed water
_{fw}

If the fuel is bagasse then the quantity of steam in tons generated per ton of cane crushed is given by

y = x · (F%C - FibreLost%C) / F%B

where

- F%Cis the fibre content of the cane in percent less the fibre lost in juice and the fibre lost in the mud filters and
- FibreLost%Cis the fibre lost in juice and
- F%Bis the fibre content of the bagasse in percent

You can do these calculations online using the form below.