Results 11 to 20 of about 60,885 (195)

Study of Helical Structure for High Performance about “Helical Compression Mechanism”

open access: yesJournal of Fluid Science and Technology, 2007
Helical compression mechanism is the newly developed one that can compress gas by using helical components. This mechanism was designed in 1987, and the helical compressors were manufactured for refrigerators first in the world in 2000.
Takayoshi FUJIWARA   +2 more
doaj   +1 more source

Vibration fault diagnosis and handling of exciter in Tangshan compressor station of China–Russia Eastern Gas Pipeline

open access: yesYou-qi chuyun, 2020
In the no-load test of the 3# motor in Tangshan compressor station of China–Russia Eastern Gas Pipeline Project before commissioning, the amplitude of exciter end rose rapidly and resulted in the shutdown when the operating speed reached 3 120 r/min.To ...
Entao HUANG   +4 more
doaj   +1 more source

Analysis of 3D Transient Flow in a High-Speed Scroll Refrigeration Compressor

open access: yesEnergies, 2023
In mobile devices such as aircraft and electric vehicles, due to limited space, there are strict requirements on the volume and weight of the compressor mounted on the vehicle.
Xiaoran Li   +5 more
doaj   +1 more source

Selection and study of methods for implementing a diagnostic model for compressor stations of the rocket and space complex [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The article considers a compressed air system as an object of diagnosis, which is part of a complex of compressor equipment for the production, storage, and distribution of gases for spaceports providing launch vehicles.
A. V. Burakov   +2 more
doaj   +1 more source

Grid Generation for CFD Analysis and Design of a Variety of Twin Screw Machines

open access: yesDesigns, 2019
A detailed study of the fluid flow and thermodynamic processes in positive displacement machines requires 3D CFD modeling in order to capture their real geometry, including leakage gaps.
Sham Rane   +2 more
doaj   +1 more source

Development of technology and manufacturing of an import-substituting complex of machines for cultivating crops

open access: yesАграрная наука Евро-Северо-Востока, 2020
A variety of topography, climate, vegetation and soil of the Southern Urals indicates the need to choose the technology and complex of machines for cultivating crops in accordance with the conditions of the zone and economy.
R. S. Rakhimov   +7 more
doaj   +1 more source

Tribological Behavior Characterization and Fault Detection of Mechanical Seals Based on Face Vibration Acceleration Measurements

open access: yesLubricants, 2023
A mechanical seal is a common type of rotating shaft seal in rotating machinery and plays a key role in the fluid seal of rotating machinery, such as centrifugal pumps and compressors.
Qingfeng Wang   +4 more
doaj   +1 more source

Routes of Aircraft Cabin Air Contamination from Engine Oil, Hydraulic and Deicing Fluid [PDF]

open access: yesINCAS Bulletin, 2022
Purpose: This paper discusses potential contamination of the air in passenger aircraft cabins. It gives an overview of cabin air contamination basics. It further names possible contamination sources and possible routes of contamination.
Dieter SCHOLZ
doaj   +1 more source

Profile design of twin screw air compressor for fuel cell

open access: yesEnergy Reports, 2022
Hydrogen–oxygen vehicle fuel cells have high research and development prospect because of their advantages of environmental protection, pollution-free and high energy conversion efficiency. Air compressor is an important part of vehicle fuel cell system.
Maofei Geng   +5 more
doaj  

Analysis and Optimization of Truck Windshield Defroster

open access: yesApplied Sciences, 2020
Frosting and fogging of automobile windshields is a common problem that emerges in daily driving. It is important and essential to quickly and completely defrost the windshield for safety purposes.
Zhilong He   +4 more
doaj   +1 more source

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