A recent experimental extension of this work revealed that for some combinations of arrestor and pipe yield stresses, the design formula was overly conservative.
Accurate determination of pipe yield strength (as an indication of material resistance to plastic collapse) is of great importance to pipeline engineers.
Results show that, for a dilute system (oil concentration less than 1%), the hyperbolic and parabolic swirl chambers without a tail pipe yield, respectively, 16.5% and 25% higher separation efficiency for a droplet size of 30 μm when compared with a conical swirl chamber without tail pipe.
Since the contact of water with the internal wall of a steel pipe yields significant corrosion, it is desirable for the water accumulated to be flushed out by the flowing oil.
The effects of key parameters including pipe diameter, pipe thickness, yield strength, hardening exponent and internal pressure, on the critical bending moment, critical compressive stress and the critical compressive strain have been investigated comprehensively through a series of models.
In principle, the latest passive safety designs, by reducing the number of pumps, valves, and pipes, should yield a cost saving; however, other more stringent safety standards might raise construction costs.
Welded Bar Sleeve (WBS) was made from mild steel pipes (nominal yield strength, f sy = 250 N/mm2) with the inner diameters, d si, of 50, 65 and 75 mm.
Local buckling occurs after the stress of the pipe reaches yield strength.
Those strengths are: collapse resistance, pipe body yield strength, joint strength, and internal pressure resistance (burst strength).
Our research reveals that the corrosion defects can decrease the burst pressure for a pipe; the yield criterion and the strain hardening exponent are crucial to accurately capture the burst pressure.
