Burner Design
Three parameters decides performances of the burner
1. Turbulence,
May be created by ‘Swearler’ & high velocities, which results in better fuel atomization. optimum size of fuel droplet is 50 microns
2. Time,
Time of residence, residence time of the fuel during combustion, for gas its low, for LDO its high & for FO its highest
3. Temperature,
Right & high temperature at core, wil yield better combustion.
O2%
O2% gives excess air level, excess air decides fuel qty, more excess air, more the fuel gases, more stack temperature & hence more stack losses, as more air is carrying the heat with it.
Heat is carried away with the N2 in the flue gases, which can’t be recovered & hence carried away in stack.
