Tube fluid 100 C Shell fluid 20°C P-3) A flat-plate-type heater is to be used to

Question

Tube fluid 100 C Shell fluid 20°C P-3) A flat-plate-type heater is to be used to heat air with the hot exhaust gases from a turbine. The required airflow rate is 0.75 kg/s, entering at 290 K; the hot gases are available at a temperature of 1150 K and a mass flow rate of 0.60 kg/s. Determine the temperature of the air leaving the heat exchanger for the parameters listed below: Pa wetted perimeter on air side, 0.703 m g wetted perimeter on gas side, 0.416 m Ag cross-sectional area of gas passage (per passage), 1.6 x10 s m

Explanation / Answer

From the above given the the temprature of the leaving air can be calculated as follows

Sqrtph/row as

130 degree centrigate

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