Distribution of flow in branches- 28 kB (07-Feb-2001)
For estimating the distribution of flow in branches of pipelines as shown in the diagram:
Pipe friction and losses through fittings- 164 kB (14-Feb-2001)
A 35o API distillate is being transferred from a storage
tank at 1 atm absolute pressure to a pressure vessel at 50 psig by means
of the piping arrangements shown in figure. The liquid flows at the rate of 23100 lb/hr through 3 inch Schedule 40
steel pipe; the length of the straight pipe is 450 feet. Calculate the
minimum horsepower input to the pump having an efficiency of 60
percent. The properties of the distillate are: viscosity = 3.4 cP, density = 52
lb/ft3. The following are the data for the pipe and fittings: For 3 inch Schedule 40 Nominal pipe, OD = 3.5 inch; Thickness =
0.216 inch Flow coefficients for the fittings (K) are: Gate valve = 0.25; 90o elbow = 0.9; Check valve = 10 Friction factor can be calculated from Blasius equation. Account for
entry and exit losses also.
Solution to the pumping problem - 20 kB