Characteristics of Plunger Pumps

Великанов, Н. Л.; Наумов, В. А.; Koryagin, S. I.

doi:10.3103/s1068798x18060175

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…*isfendi@mail.ru The energy efficiency of volumetric pumps is assessed mainly by nominal parameters: plunger [5,6], screw [7]. The monograph [8] shows how the efficiency factor of a single-screw pump depends on the pressure drop ΔP, rotor speed (RS) n, geometric characteristics of the working parts and fluid properties.…”

Section: Introductionmentioning

confidence: 99%

To the calculation of energy efficiency indicators of single-screw pumps

Akhmedova,

Naumov

2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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Test results from manufacturers of single screw pumps were studied. The expended power of a single-screw pump is directly proportional to the rotor speed. The proportionality coefficient represents the mechanical work of a single screw pump per revolution and increases linearly with increasing pressure drop. Energy efficiency and Specific energy consumption indicators were calculated for the Vulcan series single screw pump. Both indicators improve with increasing rotor speed: energy efficiency increases, specific energy consumption decreases. No maximum efficiency was found when the rotor speed changed in the studied range. If the frequency is fixed, then there is a maximum efficiency at a certain pressure drop. At higher pressure values, both indicators worsen. At lower pressure values, the energy efficiency indicator decreases, and the specific energy consumption indicator shows better energy efficiency. Therefore, when selecting single-screw pumps for operation under these conditions, the specific energy consumption indicator, and not the efficiency, should be taken into account.

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Section: Introductionmentioning

confidence: 99%

To the calculation of energy efficiency indicators of single-screw pumps

Akhmedova,

Naumov

2024

Third International Scientific and Practical Symposium on Materials Science and Technology (MST-III 2023)

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“…конструкций при динамическом нагружении [1][2][3]. Вопросам учета внутреннего трения в настоящий момент уделяется большое внимание, наиболее часто оно вводится в расчет благодаря различным математическим алгоритмам и методикам [4][5][6][7].…”

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The use of fixed points in experimental research of the internal friction of material

Zylev

Борисович²,

Platnov

et al. 2019

Struct. Mech. of Eng. Const. and Build

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The aim of the work. The work is devoted to experimental research of internal friction parameters of the material. Methods. The research of internal friction is carried out by consideration of damped oscillations of the experimental system that consist of rigid plates and a specimen in a state of pure bending. We propose to locate bearings in the fixed points to minimize energy losses in support fastenings. Fixed points are determined by using a finite element complex with consideration of free oscillations of the loose model. Results. Damping curves were determined, which demonstrate a very small logarithmic decrement of oscillations and frequency independence of inertial friction. The main result of the work is the tested improvements of the experimental technique, among which the main one is the use of fixed points for determining the places of fastening of the laboratory installation

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Influence of the rotor speed of the water-ring pump on the vacuum transport unit operation

Наумов

2021

J. Phys.: Conf. Ser.

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Vacuum transport units based on water-ring pumps are used for pumping aggressive liquids. The previously developed mathematical model of the liquid pumping process was used to assess the effect of changes in the rotor speed. The load characteristics of the ELRS-45 water-ring vacuum pump from ERSTVAK were used in the calculation. The numerical method was used to solve the system of differential equations. Increasing of the rotor speed leads to a decrease in the absolute pressure in the tank at the end of the first step. As a result, the volume of liquid pumped in one cycle increases significantly. The average performance of the unit is significantly increased. While energy efficiency decreases. The calculated parameters allow you to select the characteristics of automatic control of the system.

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Characteristics of Plunger Pumps

Cited by 7 publications

References 1 publication

To the calculation of energy efficiency indicators of single-screw pumps

To the calculation of energy efficiency indicators of single-screw pumps

The use of fixed points in experimental research of the internal friction of material

Influence of the rotor speed of the water-ring pump on the vacuum transport unit operation

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