32 posts
Re: Calciner air req
As you enlighten to calculate the GJ of kiln.
Here is my calculation of heat (In GJ) for kiln . My objective is to cal the operating parameter for Kiln Burner
Thermal load in kiln= 6462x30000= 193GJ
6462= Combustible flow or feed rate in KG/HR
30000= Calorific value of petcoke.
As per your calc . this thermal load is required to be multiplied by 365(ie air in kg/GJ of fuel ) . Well this Gega joule I have calculated in approach to calc the thermal load of kiln. Perhabs I may be wrong , kindly get me in right direction .
Continuing to process envisages by you
193X365=70445kg/hr
This result does not in resonance of what I have been given from my alternate source. As per alternate source the result is
Conveying air volume-3374 NM3/HR (@ 0°C, 1 atm).
Discharge pressure – 7900 MM WG.
Conveying Pipe Size – 200 NB Sch 40
If I convert the mass flow in volume flow than also the result wouldn’t match with the resulted air volume ie 3374NM3/HR.
Pressure and pipesize being desin , taking site condn parameter. But my worry is , how to calculate the volume , probably they must have considered heat value.
Iam looking forward volume flow calculation.
Thanks in anticipation
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57 posts
Re: Calciner air req
Conveying air is only a part of the combustion air.
If you are interested in calculating a pneumatic transport, for transporting pulverized fossil fuels, a range of 4-7 kg fuel/kg air would be expected for short distances.
3 posts