Now let’s put all four curves on a single chart. Here it will give you an overall pump performance review. You can see how these curves interact with each other. As said earlier, all these curves are drawn for a constant speed fixed diameter impeller. If you change any of these, all...
enum PumpType /* Type of pump curve: */ {CONST_HP, /* constant horsepower */ POWER_FUNC, /* power function */ CUSTOM, /* user-defined custom curve */ NOCURVE}; // enum SourceType /* Type of source quality input */ {CONCEN, /* inflow concentration */ MASS, /* mass inflow boos...
Creation a universal technique of predicting performance curves for small-sized centrifugal stages of well oil pump units The work provided is a continuation the development of research work on the process of pumping high-viscosity liquids and is aimed at creating a universal technique of recalculating...
IN rectly a centrifugal proportional pump, to speed, flow is head directly proportional t speed, head varies as the square of the speed, and horsepower as the cube of the speed. Thus, in a water system the discharge pressure can be held constant over a wide range of flow rates by varyin...
According to the MICP curves, the mercury injection of the samples can be roughly divided into three stages. At the initial stage (mercury injection capillary pressure below 0.2 MPa), the samples had a very small volume of mercury injected under 0.0002 ml/g mostly. When the mercury intrusion...
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Frequently, the main pump is at a significant height above the fluid reservoir. An important consideration in this system is that both main and auxiliary pumps operate at essentially the same speed and have essentially the same characteristic curves. The importance of assuring correct similar ...