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Biomass Boiler Particulate Material Estimation
#1
Posted 11 September 2014 - 12:16 PM
I need to estimate the mass flow of exhaust gases and the particulate material concentration in this stream for a biomass boiler (sugarcane bagasse).
I think i have all the data needed like the composition of the biomass, the usual %excess air rate, boiler thermal efficiency but i dont know the route to estimate the total gases and the particulate material.
Need this info to especify a scrubber for this gas and later a water treatment station for the resulting waste water.
Hope u guys can help.
TY
#2
Posted 12 September 2014 - 03:27 AM
You need to know the exact composition of the biomass, including its water content, to calculate the flue gas it will yield.
Water will obviously appear as H2O vapor in the flue gas.
C atoms from biomass will appear as CO2 in the flue gas,
H atoms from biomass will appears as H2O in the flue gas,
S atoms from biomass will appear as SO2 in the flue gas,
N atoms from biomass will appear as N2 in the flue gas,
Based on that you calculate required O2 from air,
N2 from air will obviously appear as N2 in flue gas.
How much particulates will appear in the flue gas depends on the whole design of the biomass boiler. Biomass also contains ash. Does the boiler remove part of that ash? Otherwise all ash will be carried into the flue gas.
Is there soot produced in the boiler? If so you can not calculate that but need typical operating data from similar boilers.
#3
Posted 12 September 2014 - 09:06 AM
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