in fire tube boiler furnace on oil fuel calculation
we want to calculate emissivity of gases as
emissivity=B(1-e^kps)
k is attenuation factor
can i write
k=k1+k2
k1 is for luminous flame oil and gas
k2 is for nonluminous flame or is thing wrong imust write only
k= k1
and how ican calculate it...
