[djdemzy]

Good Evening,

I am currently desiging a heat exchanger to heat Air from 10 oC to 110oC and cool flue gas from 1259.4 oC to 725 oC.

As both fluids are gases, i would like to know if it is advicable to use a shell and tube heat exchanger?

I read online that the convertional gas-to-gas heat exchanger is vertical shell and tube heat exchanger


Thank You Very Much
Kind Regards


Paul

[jaspevacek]

So the cold side is being heated by 100 C and the hot side is being cooled by 534 C ? Assuming that the heat capacity of air is linear (it isn't), that is a 5 to 1 imbalance. I'm not saying it can't be done, but it will require a big difference in flow rates.

As an aside, your credibility is hurting from having 5 significant figures.