Thanks, that is much closer to what I was expecting. I don't need a 100F rise (closer to 70) but was padding it by a fair amount. I really appreciate the feedback, thank you.
The diameter doesn't matter, the flow rate, temperature, and volume of the mass to be heated have been supplied.
The heat will not be applied externally so the wall to gas transfer is immaterial.
The question is how much power will it take to raise the temperature of 500lb/min of dry air at...
thread391-260422
Starting with 500lb/min of dry air at 400F moving through a pipe at 84fps (appr. 11,000ACFM) what is the wattage required to raise the temperature 100F?
CP 1.026
Density .046 lb/ft3
It's a real life problem, not homework so any help will be much appreciated.