Influence of Parameters of Induction Motor-Centrifugal Pump Units with Hydropaths Connected in Series on their Modes
Journal Title: Energy Engineering and Control Systems - Year 2015, Vol 1, Issue 2
Abstract
Using the mathematical model of the pump station power supply system in steady-state modes developed by the author, the influence of the parameters of induction motor-centrifugal pump units with in-series-connected hydropaths of the pumps on their steady-state modes was studied. A comparison was drawn on the operation of a number of coupled units with different pump ratings. It was revealed that the difference in rated flow of the operating fluid in centrifugal pumps results in the fact that only the unit with the lowest operating fluid rated flow works effectively. Units with larger rated flow of the operating fluid are underutilized and work with a decreased efficiency in all modes. Viability of applying centrifugal pumps with minimal difference in operating fluid rated flow for induction motor-centrifugal pump units with in-series-connected hydropaths of the pumps was substantiated.
Authors and Affiliations
Vladyslav Lysiak
Techniques for Natural Gas Physical Properties Definition for Flow Rate and Volume Metering Systems
The results of researching the techniques for natural gas properties determination for flow rate and volume metering systems are presented in the paper. The necessity of developing techniques for calculating the isentrop...
Gas Dynamical Capillary Flowmeters of Small and Micro Flowrates of Gases
The possibility of application of glass capillary tubes (CTs) as sensors of small and micro flowrates of gases was justified. The accuracy of a number of CTs flowrate equations was analyzed on the basis of experimental s...
Dynamic Modelling of Centrifugal Hydraulic Load of Pumping Station Electric Drive
The paper analyzes modern trends in modelling the centrifugal hydraulic load of the pumping station electric drive. It was found that a very simplified approach to the representation of one of the inextricably linked sub...
Identification of Controlled Plant and Development of Its Model by Means of PLC
The results of experimental and theoretical investigation of dynamic and static characteristics of a thermal object (electric oven) as a controlled plant are presented in the paper. The up-to-date microprocessor instrume...
Controlled Switched Reluctance Motors with Energy Capacitor
One of the most simple in terms of construction, the most practically feasible and reliable motors is a switched motor with salient-pole stator, concentrated coils and its winding and toothed passive rotor. Such motor is...