1.5 % for coal fired boilers with ash greater than 20 %. Efficiency % = 100 - Sum of all Losses % The Boiler engineer should really worry about category one. This is what the operator can adjust and reduce.
When the O2 in the combustion zone varies from 3.5% to 8.0% efficiency drops of 2.0% points are experienced in the boiler and turbine separately and the gross overall efficiency drop is 3.0% ...
Nov 01 2014 · The improvement in net unit heat rate is higher than the improvement in boiler efficiency because with drier coal the station auxiliary power used is lower compared to the wet coal. CO 2
Apr 05 2010 · Coal Fired Boilers Efficiency 1. Increasing Energy Efficiency and Reducing GHGs Emissions and Fuel input by Coal-Fired Plants
Adam J. Szladow
REDUCT & Lobbe Technologies