A method of designing of torque-flow pump impeller with curvilinear blade profile
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 3, Issue 8
Abstract
<p>The research is devoted to energy efficiency increasing of a “Turo” type torque-flow pump by improving its impeller. This allows minimizing the total pump installation life cycle cost as a result of reducing the costs of electricity.</p><p>The application of the real fluid flow physical model in a torque-flow pump allowed developing the energy distribution mathematical model in its flowing part. In the proposed mathematical model, the ratio of component flows was defined. These include the toroidal vortex, the flow coming from the impeller intervane channels directly to the outlet (through-flow), and the flow that does not contact with the blades (flowing stream). As a result, it is found that the maximum possible energy efficiency of the torque-flow pump operating process without taking into account hydraulic losses is η<sub>op</sub>=0.67.</p><p>The method of designing the torque-flow pump impeller with a curvilinear blade profile is developed. The method is based on the proposed mathematical model of energy distribution in the torque-flow pump flowing part. The blade inlet angle β<sub>1</sub> and the angle on the calculated impeller radius β<sub>r</sub> are proposed to be carried out in accordance with the fluid flow in the impeller intervane channels. The radius r<r<sub>2</sub> is chosen for which there is a radial motion of the fluid in the intervane channels of the impeller.</p><p>The numerical investigation made it possible to estimate the fluid flow structure in the torque-flow pump flowing part. Using the proposed impeller has minimized losses at the inlet and in its intervane channels as a result of coordination of the fluid flow and the impeller skeleton geometry. Increasing the blade part and reducing the vortex part of the operating process allowed increasing the energy efficiency of the torque-flow pump.</p><p>The proposed geometry of the impeller allows increasing the energy efficiency of existing torque-flow pumps by 4–5 %.</p>
Authors and Affiliations
Vladyslav Kondus, Pavlo Kalinichenko, Olexandr Gusak
Keywords
Related Articles
- EP ID EP528004
- DOI 10.15587/1729-4061.2018.131159
- Views 45
- Downloads 0
Estimation model of the diesel engine fuel system with an electromechanical device to intensify fuel supply
<p>The key directions of the development and improvement of the fuel supply system for internal combustion engines with ignition from compression of the fuel/air mixture were pointed out. The need for the comprehensive i...
Comparative investigation of electrochemically synthesized (α+β) layered nickel hydroxide with mixture of α-Ni(OH)2 and β-Ni(OH)2
<p>Nickel hydroxides, owing to their high electrochemical activity are promising materials for chemical power sources (alkaline accumulators, lithium accumulators and hybrid supercapacitors), electrochromic devices, elec...
Determining high quasihydrostatic pressure up to 7 GPa at a temperature to 1,400 °С using resistive sensors
<p>A differential method for measuring high quasi‒hydrostatic pressures for six‒punch pressing installations has been constructed by building a load‒carrying characteristic р=f(Q), where p is the value for pressure in a...
Devising an engineering procedure for calculating the ductility of a roller bearing under a no-central radial load
<p>Known theoretical approaches to calculating the ductility of rolling bearings include rather complicated analytical dependences and require cumbersome computation. That makes it a relevant task to undertake a research...
Influence of plasticizers on fire retarding properties of carbon foams of intumescent coatings
<p>The studies were conducted using the triple intumescent system based on Exolit AP 740 F, which is a synergetic system based on ammonium polyphosphate with the addition of nitrogen-containing compounds. Styrene-acrylic...