Pump manufacturers do not normally provide the characteristic curves of their pumps working as turbines. Therefore, establishing a correlation between the performances of direct (pump) and reverse (turbine) modes is essential in selecting the proper machine. In this paper, several centrifugal pumps (...
2.Calculation of the performance curve for inverter fed asynchronous traction motor;逆变器供电的异步牵引电机特性曲线的计算 3.The characteristics of all kinds of gas-lift performance curves were analyzed.论述了气举区块优化配气的发展现状,分析了各种类型的气举特性曲线,完善了区块优化配气模型,并建立了与...
1. HOW TO READ A CENTRIFUGAL PUMP PERFORMANCE CURVE? Curves typically include performance metrics based on pressure, flow, horsepower, impeller trim, and Net Positive Suction Head Required (NPSHr). Centrifugal pump curves are useful because they show the pump characteristics and performance metrics ...
Online Detection and Operational Analysis of Pump Characteristic in Sewage Pumping Station 污水泵站水泵特性在线检测与运行分析 www.ilib.cn 6. Orthogonal Polynomial Fitting for Pump Characteristic Curves 水泵性能曲线的正交多项式拟合 service.ilib.cn 7. Single Spiral Pump Characteristic and Its Selection 单螺...
Characteristic curves of centrifugal pumps are used to illustrate operating behaviour and are used as the basis for assessing hydraulic capability. To determine the head, measurement procedures are laid down in international codes such as ISO 3555. These codes also describe the set-up of measuring ...
Centrifugal pumpcharacteristic curvedimensional analysissimilitudeIn this study, experimental and analytical investigations are carried out in order to determine the steady state performance curves of a centrifugal pump. The pump rotor of the hydraulic facility (TE-83), available at the fluid laboratory ...
The characteristic curves (flow-head) of the pump were determined by measuring the difference between the outlet and the inlet pressures for different steady flow rates. The curves were plotted for various values of the rotating speed. For each speed the head is recorded then plotted at ...
The purpose of this work is to study the effect of solid-mixture on the cavitation characteristic of a centrifugal pump. However, pump tests under varied volumetric concentrations of sandy clay are reported. The experimental results show that: 1. at low flow rates, NPSH curv...
The purpose of this work is to study the effect of solid-mixture on the cavitation characteristic of a centrifugal pump. However, pump tests under varied volumetric concentrations of sandy clay are reported. The experimental results show that: at low flow rates, NPSH curves are independent of ...
The research results show that the change of impeller outlet width has obvious impacts on characteristics at design point, flow field and the shape of performance curves. At nominal condition, the change of outlet width has more important effects on moderate specific speed centrifugal pumps. The ...