dear all:
pls what the relation equetions for preheater fan design? (power +flow etc.....)
Ahmed
Base data for your PH Fan design:
Type of Fuel: Coal or HFO or NG
CV of your fuel : For HFO it is 9700 KCal/Kg Fuel
Specific Heat Consumption : Around 720 KCal/Kg Cl. without Bypass and
820 KCal/Kg Cl. with Bypass Systems
From Your Specific Heat Consumption
1) You can calculate the amount of Fuel Consumption in both your Kiln Firing and PC Firing .
2) From your amount of Fuel you can calculate the amount of air required for combustion.
Therefore, the Flow of your PH Fan would be ( Combustion air + 5 % O2 at PH Exit - Primary air introducing through Burner Pipe ( appr. 7 % of Total Air ) )
From Flow data you can calculate Power Consumption of your PH Fan in KW
For Cooler ID Fan,
We will introduce approximately 2.0 - 2.2 NM3/Kg Cl. of air into cooler,
and the PH Fan consumes around 0.8 NM3/Kg Cl. of air
then remaining is for cooling your Clinker from 1300 Deg. C to 100 Deg C
this is your Cooler ID Fan Margin i.e around 1.2 NM3/Kg Cl. of air.