What are the outlet air temperature

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Reference no: EM13942662

Atmospheric air enters a 10-m-long, 150-mm-diameter uninsulated heating duct at 60°C and 0.04 kg/s. The duct surface temperature is approximately constant at Ts = 15°C.

(a) What are the outlet air temperature, the heat rate q, and pressure drop tip for these conditions?

To illustrate the tradeoff between heat transfer rate and pressure drop considerations, calculate q and tip for diameters in the range from 0.1 to 0.2 m.

In your analysis, maintain the total surface area, As = 7TDL, at the value computed for part (a). Plot q, tip, and L as a function of the duct diameter.

Reference no: EM13942662

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