Results 31 to 40 of about 1,277,194 (266)

Overview of electric pump units for spacecraft thermal control systems

Космические аппараты и технологии, 2021
The paper reports a brief description of spacecraft operating conditions, the main reasons of heating and thermal gradient appearance and need to reassign the thermal energy.
E. B. Korotkov, O. V. Shirobokov, S. A. Matveev, Z. A. Yudina   +3 more
doaj   +1 more source

Method for determining the parameters of a substitution scheme for an electromechanical module with an increased electromagnetic momentwith increased electromagnetic torque

Известия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. Consider the problems of determining the energy parameters of electrical equipment elements of electrical complexes for oil production with submersible electric centrifugal pumps.
A. G. Gorodnov, V. Yu. Kornilov, E. Yu. Fedorov   +2 more
doaj   +1 more source

Study of Start-up and Shutdown Modes of an Asynchronous Electric Drive for a Centrifugal Pump [PDF]

Problems of the Regional Energetics
The aim of this study is to investigate the commutation processes of an asynchronous short-circuited electric drive for a centrifugal pump. The set goal is achieved by solving two tasks: an-alyzing the dynamic modes of connection to and disconnection ...
Boiko A., Naidenko E., Besarab O., Maevskaya E.   +3 more
doaj   +1 more source

A numerical and experimental analysis of flow in a centrifugal pump [PDF]

, 2002
Computational fluid dynamics (CFD) analysis has been used to solve the unsteady three-dimensional viscous flow in the entire impeller and volute casing of a centrifugal pump.
Scanlon, T.J., Stickland, M.T., Fernandez, J., Blanco, E., Parrondo, J.   +4 more
core   +3 more sources

EXPERIMENTAL STUDIES OF OPERATION OF A PNEUMATIC SPRING PRESSURE COMPENSATOR WITH QUASI-ZERO STIFFNESS

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the research is caused by vibration negative effect on the elements in the installation of the electric centrifugal pump. The presence of vibration increases the number of premature failures.
Аlеxеy N. Zоtоv, Elena B. Dumler, Kamil R. Urazakov, Roza I. Vakhitova, Oleg Yu. Dumler, Pavel M. Tugunov   +5 more
doaj   +1 more source

Numerical studies of the velocity distribution within the volute of a centrifugal pump [PDF]

Centrifugal pumps play an essential role in engineering systems since they are widely used in the process and power industries. The performance of a centrifugal pump needs to be maximised due to its importance and this depends on the flow structure ...
Zala, Karina, Al-Obaidi, Ahmed, Pradhan, Suman, Asim, Taimoor, Mishra, Rakesh   +4 more
core   +3 more sources

Diagnosis of Centrifugal Pump Faults Using Vibration Methods [PDF]

, 2012
Pumps are the largest single consumer of power in industry. This means that faulty pumps cause a high rate of energy loss with associated performance degradation, high vibration levels and significant noise radiation.
Gu, Fengshou, Ball, Andrew, Althobiani, F., Gu, F., Al Thobiani, Faisal, Ball, A., Albraik, A.   +6 more
core   +1 more source

A CFD parametric study of geometrical variations on the pressure pulsations and performance characteristics of a centrifugal pump. [PDF]

, 2009
Pressure pulsations may be troublesome during the operation and performance of centrifugal pumps. Such pressure pulsations have traditionally been investigated experimentally but numerical analysis techniques allow these effects to be explored. The multi-
Amaral Teixeira, Joao, Spence, R.
core   +1 more source

Investigation of the Effect of the Voltage Drop and Cable Length on the Success of Starting the Line-Start Permanent Magnet Motor in the Drive of a Centrifugal Pump Unit

Mathematics, 2023
The use of Line-Start Permanent Magnet Synchronous Motors (LSPMSM) improves the efficiency of conventional direct-on-line electric motor-driven fluid machinery such as pumps and fans. Such motors have increased efficiency compared to induction motors and
Aleksey Paramonov, Safarbek Oshurbekov, Vadim Kazakbaev, Vladimir Prakht, Vladimir Dmitrievskii   +4 more
doaj   +1 more source

Applying the ERP Business Software in the Analysis of Electric Drives Steady State

Tehnički Glasnik, 2023
The paper presents the possibility of using ERP business software for the purpose of analyzing steady states of electric drives. A centrifugal pump is used as an example of active load.
Josip Nađ, Dunja Srpak, Antonija Šumiga, Branko Tomičić   +3 more
doaj   +1 more source