Question: Air enters a small duct having a cross section of an equilateral triangle, 3.0 mm on a side. The entering temperature is 27oC and the

Air enters a small duct having a cross section of an equilateral triangle, 3.0 mm on a side. The entering temperature is 27oC and the exit temperature is 77oC. If the flow rate is 5 × 10−5 kg/s and the tube length is 30 cm, calculate the tube wall temperature necessary to effect the heat transfer. Also calculate the pressure drop. The pressure is 1 atm.

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T b 27 77 2 52 o C 325 K 196 10 5 k 00282 Pr 07 c p 1007 L 30 cm ... View full answer

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