An air-water mixture is flowing in a tube with a diameter of 25.4 mm. The two-phase mixture enters the tube at 15°C and exits at 75°C, while the tube surface temperature is maintained at 80°C. If the superficial gas and liquid velocities are 1 m/s and 2 m/s, respectively, determine the two-phase heat transfer coefficient htp for (a) the horizontal tube (θ = 0°) and (b) the vertical tube (θ = 90°), and compare the two results. Assume the surface tension is σ = 0.068 N/m and the void fraction is α = 0.33. Answers: (a) 10.3 kW/m2·K. (b) 15.3 kW/m2·K
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.