Air at 14.7 psia and 85ºF enters a square 1 ft x 1 ft heating duct. If the duct is 80 ft long and has an inside surface temperature of 65ºF, determine (a) hydraulic diameter, (b) convective heat transfer coefficient, and (c) air temperature leaving the duct.

What will be an ideal response?


The hydraulic diameter is



Physics & Space Science

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