The Hermetic Synchronous Engines for Pumping the Aggressive Liquids
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2014, Vol 21, Issue 2
Abstract
The paper covers brief information about asynchronous and synchronous engines used for driving centrifugal pumps. It is argued the fact that asynchronous engines do not, actually, satisfy the requirements for hermetic engines designed for pumping radioactive and chemical liquids, because they possess low technical and economic indexes. Modification of rotor construction of these engines gives the possibility to increase these indexes. The shortcut rotor was replaced with a ferromagnetic rotor in hermetic asynchronous engine serially produced and permanent magnets had been inserted into its body. Different synchronous engine constructions with permanent magnets had been analyzed and developed, which operating characteristics had been compared with those of the asynchronous one.
Authors and Affiliations
Tudor Ambros, Marcel Burduniuc
Effects of Structural Damage on Dynamic Behavior at Sandwich Composite Beams - Part I-Theoretical Approach
This paper series presents an analysis regarding the dynamics of sandwich composite beams, embedded at one end, in order to highlight the effect of geometrical and material discontinuities upon the natural frequencies. I...
Influence of Cutting Regime Parameters on Edge Endurance of Lathe Tool
In mechanical industry, to increase productivity is very important to correctly establish the factors that influence the process dynamic. One of these factors is the features cutting regime. In practice, the technologica...
Computing of the Slot Number within the Induction Machine Approached in Terms of Electromagnetic Forces
In order to find the final solution the design of electrical machines usu-ally involves different steps. In the starting stages of design procedure, some of the main variables are given data and all the others must be ad...
A Comparative study about the Influence of Vibration on Elbow Joint Mobility
The results shown in [1] have referred to a particular appreciation of the elbow joint mobility of a subject to the action vibrations produced by a fitness device. Experiments - performed on four subjects - were held at...
Investigation on Self-Organization Processes in DC Generators by Synergetic Modeling
In this paper is suggested a new mathematical model, based on which it can be justified the self-excitation DC generators, either shunt or series excitation, by self-organization phenomena that appear to overcome thresho...