Zobrazeno 1 - 10
of 307
pro vyhledávání: '"pump unit"'
Autor:
M. S. Ershov, E. S. Efimov
Publikováno v:
Горные науки и технологии, Vol 9, Iss 3, Pp 292-303 (2024)
The use of a variable frequency drive (VFD) for sucker-rod pump units (SRPUs), widely employed in oil extraction, enhances the energy and technological efficiency of oil production and reduces equipment wear. However, its application is hindered by u
Externí odkaz:
https://doaj.org/article/1d93c5b05f7442f681979ef684315a62
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract For the electric hydrostatic pump unit (EPU), which is a crucial component in the electro hydraulic servo pump control system (EHSPCS), nonlinear flow modelling is a key challenge to achieve high performance operation, especially in position
Externí odkaz:
https://doaj.org/article/a380db3e997d4448adc890c01eea0049
Publikováno v:
Технічна інженерія, Vol 1, Iss 93, Pp 295-300 (2024)
The article analyzes the features of using an asynchronous electric drive in pumping equipment. Focusing on the problems that arise in the diagnosis, research and maintenance of such engines, in particular in electro-hydraulic systems, the study uses
Externí odkaz:
https://doaj.org/article/10380a00426e4feca6a82ab2565e03b8
Autor:
V. V. Yanchuk, V. N. Romaniuk
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 66, Iss 6, Pp 509-523 (2023)
At industrial CHP plants which are characterized, in particular, by steam supply to industrial consumers, in cases with significant condensate losses, it is proposed to develop a system of feed water regenerative heating by utilizing low-temperature
Externí odkaz:
https://doaj.org/article/5b047ea307a74531918f01ebbeca94f1
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 7, p 1124 (2024)
Influenced by the clearance flow between stator and rotor, the operational performance and hydraulic performance of full cross-flow pump units are often worse than that of semi-cross-flow pumps. In order to explore the influence mechanism of clearanc
Externí odkaz:
https://doaj.org/article/027f15d2a97a417497ec3f76e8a70b78
Publikováno v:
Космические аппараты и технологии, Vol 7, Iss 2, Pp 107-115 (2023)
This article characterizes the spacecraft as a means of performing various tasks, including by precision equipment. Emphasis is placed on vibration as one of the influencing factors and on the need for a low level of vibration on the spacecraft. Amon
Externí odkaz:
https://doaj.org/article/b22621093d9b4345928dde402886198d
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 334, Iss 10 (2023)
Link for citation: Korobov G.Y., Vorontsov A.A. Study of conditions for gas hydrate and asphaltene-resin-paraffin deposits formation in mechanized oil production. Bulletin of the Tomsk Polytechnic University. Geo Аssets Engineering, 2023, vol. 334,
Externí odkaz:
https://doaj.org/article/322f2f175c944c3a89ca7d3b14a5a9b3
Autor:
Mereutsa E.V., Sukhikh A.A.
Publikováno v:
Problems of the Regional Energetics, Vol 57, Iss 1, Pp 99-110 (2023)
This article proposes and analyzes a circuit solution for providing heat supply to the generator of an absorption refrigeration machine (AHM) in centralized air conditioning systems using a heat pump unit (HPU) and solar collectors (SOL). Previously,
Externí odkaz:
https://doaj.org/article/4954a139cff646308a92b27c0417d70c
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 334, Iss 8 (2023)
Link for citation: Totanov A.S., Molchanova V.A., Urazakov K.R. Study of the performance of the dynamic level stabilization system operation in the wellbore equipped with an electrical submersible pump unit. Bulletin of the Tomsk Polytechnic Universi
Externí odkaz:
https://doaj.org/article/d415f5dc47124d14becf97335fae060c
Publikováno v:
Energies, Vol 17, Iss 4, p 882 (2024)
The scientific novelty of the proposed article lies in the development of the theory of analysis of the operation modes of group pump units operating on a long pipeline network with back pressure. This was achieved by creating electric equivalent cir
Externí odkaz:
https://doaj.org/article/b1cd8a8931a647b2aefcb1ce4a78d72c