[fertan]

Hi All,

Does anybody know how to calculate the Normalized furnace inlet temperature ? I have a Diesel Hydrotreater preheat train (feed effluent pinched) which I would like to calculate this vector...I have estimated the heat transfer coefficient as well as the fouling factor on the preheaters...but would like to represent them as the NFIT deterioration curve over time...Any help on how to estimate this would be most appreciated!

Regards