Air flows through a smooth tube, 2.5 cm diameter and 10 m long, at 37°C. If the pressure drop through the tube is 10000 Pa, estimate (a) the air velocity through the tube and the friction factor (b)...

Extracted text: Air flows through a smooth tube, 2.5 cm diameter and 10 m long, at 37°C. If the pressure drop through the tube is 10000 Pa, estimate (a) the air velocity through the tube and the friction factor (b) the heat transfer coefficient using Colburn Analogy [jH the Stanton Number and Pr is the Prandtl Number. (St)(Pr)0.67], where St is Gas constant, R = 82.06 cm³.atm/mol.K. Darcy friction factor, ƒ = 0.184/Re.2. Other relevant properties of air under the given conditions: viscosity = 1.8 x 10-5 kg/m.s, density = 1.134 kg/m³, specific heat capacity, C, = 1.046 kJ/kg.°C, thermal conductivity = 0.028 W/m.°C. %3D %3D