An 8" ID pipe carries air at 80.0 ft/sec, 21.5 psi absolute and 80°F. How many pounds of air are flowing? The 8" pipe reduces to a 4" ID pipe and the pressure and temperature in the 4" pipe are 19.0 psi absolute and 48°F respectively. Find the velocity in the 4" pipe and compare the flows in ft3/sec in the two pipes.

Answer rating: 100% (QA)

ID 8 inch 23 feet Area A pi x D 2 4 314 x 23 2 4 034889 ft 2 Volumetric flow rate Q Area x velocity ... View the full answer