In: Mechanical Engineering
Hot exhaust gases, which enter a tube heat exchanger with
cross-flow fins (both
unmixed fluids) at...
Hot exhaust gases, which enter a tube heat exchanger with
cross-flow fins (both
unmixed fluids) at 1.5 kg/s and 250 oC, are used to heat
pressurized water at a speed
of 1.0 kg/s and 35 oC. The specific heat of the exhaust gas is
1.0 kJ/kg K, and the
overall heat transfer coefficient based on the surface area of
the gas side is Uh = 100
22
W/m K and Ah = 40 m . Calculate heat transfer for heat
exchanger and gas and
water outlet temperatures.