Unformatted text preview: with a longitudinal pitch of 4 cm and transverse pitch of 5 cm. 3. Fluids flow through the channels of the heat exchanger. The hydraulic diameter of the channel is 0.0241 m. Calculate power expenditure per heating surface area for the following fluid: (1) Air at an average temperature of 30 o C and 2 atm pressure with h = 55 W/ m 2 K. (2) Water at average temperature of 30 o C with h = 3850 W/ m 2 K....
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 Fall '09
 HojinAHN
 Heat, Heat Transfer, average air temperature

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