Question

Ethanol is vaporized at 78°c (hfg 846 kj/kg) in a double-pipe parallel-flow heat exchanger at a rate of 0.03 kg/s by hot oil (cp=2200 j/kg °c) that enters at 120°c. if the heat transfer surface area and the overall heat transfer coefficients are 6.2 m2 and 320 w/m2°c, respectively, determine the outlet temperature and the mass flow rate of oil using (a) the lmtd method and (b) the ε–ntu method.

Answer 1

Respuesta:

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