Roughness factor, pipelines

Rotarv kim reactors. 575, 590 Roughness factor, pipelines, 94 Rounds equation, friction factor, 94 RRS (Rosin-Rammler-Sperling) equation, 525,530-532 Rules of thumb... 

The following analysis enables one to calculate the diameter of a pipeline transporting any compressible fluid. The required inputs are volumetric flow rate, the specific gravity of the gas relative to air, flow conditions, compressibility factor Z where Z is defined by nZRT = PV, the pressure at the point of origin and the destination, the pipe length, and pipe constants such as effective roughness. The working equations have been obtained from the literature. Since the friction factor... 

The value of C3 is 0.011454 in USCS units and 20.178 x 10 in SI units. The inputs for the calculation are Q (bbl/hr or mVhr) and pipeline length (miles or km), viscosity U (Centistokes), pipe diameter D (inches or meters), effective pipe roughness e, and pipeline lengths (miles or km). The Fanning friction factor is... 

A new material is being used for a specialty pipe. When water is pumped through the pipeline made of this material (diameter = 0.08 m), a friction factor of 0.0070 is found for a V of 12 m/sec. What is the f (roughness... 

Economies of scale is the major element in pipeline economies. From a theoretical point of view, doubling the pipeline diameter will tend to increase the amount delivered by more than fourfold in a given period of time—other factors remaining constant. This implies that total cost might double, while the cost per unit delivered would decline. In planning a pipeline system, crude oil moves at a speed of 5 km/h via pipeline, roughly a walking speed. 

---