I have a simple question that I couldn't figure out.
We have L=60 m, with dia 1600 mm Stainless Steel (thickness=1,6 mm)round duct at outside. Outside minimum temperature is -36 C, with RH = 90%. The two ends of duct are open. From right end, 23500 m3/h air enters at -36 C. At the center of the...