Results 101 to 110 of about 6,109 (270)

Low-temperature centrifugal helium compressors.

open access: yesTEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 1982
Centrifugal helium compressors were developed to improve efficiency and reliability of helium refrigerators. These comprssors are operated almost below the temperature of liquid nitrogen. The rotor of the compressor is supported by helium lubricated gas bearings.
OKANO, Makoto   +3 more
openaire   +2 more sources

Mechanical Vapor Recompression in Distillation: A Framework to Analyze Technical Feasibility, Economic Competitiveness, and Ecological Benefits

open access: yesChemie Ingenieur Technik, EarlyView.
Communication: An approach for a holistic evaluation of distillation processes with mechanical vapor recompression combining an initial energy potential analysis, shortcut methods for the compressor and reboiler design, and the determination of economic and ecological performance parameters is presented.
Katharina Jasch   +4 more
wiley   +1 more source

Experimental and Numerical Investigation of Unforced unsteadiness in a Vaneless Radial Diffuser [PDF]

open access: yes, 2011
The paper reports combined experimental and numerical investigations of unforced un- steadiness in a vaneless radial diffuser. Experimental data were obtained within the diffuser using stereoscopic time resolved Particle Image Velocimetry (PIV) recording
PAVESI, Giorgio   +5 more
core  

Method for the Ecological and Economic Assessment of Mechanical Vapour Recompression in the WindaB Tool

open access: yesChemie Ingenieur Technik, EarlyView.
Method to assess economic and ecologic advantages of mechanical vapour recompression at early stage of development. Main correlations between design parameters and profitability as well as CO2 emission reductions are described shown in a case study of methanol–water.
Hannes Schneider   +2 more
wiley   +1 more source

High Efficiency Centrifugal Compressor for Rotorcraft Applications [PDF]

open access: yes, 2017
A centrifugal compressor research effort conducted by United Technologies Research Center under NASA Research Announcement NNC08CB03C is documented. The objectives were to identify key technical barriers to advancing the aerodynamic performance of high ...
Hardin, Larry W.   +9 more
core  

Analysis of compressor surge induced by converter low-voltage ride through and improvement measures

open access: yesYou-qi chuyun
[Objective] Centrifugal compressors encounter challenges in maintaining stable operation due to the occurrence of harmful surges, and the low-voltage ride through(LVRT) function of converters has been utilized to sustain continuous operation against ...
PU Bin   +3 more
doaj   +1 more source

Effect of the gap between the diffuser blade and impeller blade on the internal complex flow and aerodynamic performance of a centrifugal compressor [PDF]

open access: yesMechanical Sciences
In this paper, the impact of the ratio (Rd= R2/R1) between the diffuser inlet radius (R2) and the impeller outlet radius (R1) on internal complex flow and the aerodynamic performance of a centrifugal compressor is deeply studied through numerical ...
J. Chen   +9 more
doaj   +1 more source

Analysis of the effects of simplifications on the state of loads in a centrifugal compressor. [PDF]

open access: yesSci Rep, 2022
Bednarz A   +4 more
europepmc   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Gas Turbine Application to CO2 Pipeline: A Techno-Economic and Environmental Risk Analysis [PDF]

open access: yes, 2014
Gas Turbines (GTs) are used extensively in pipelines to compress gas at suitable points. The primary objective of this study is to look at CO2 return pipelines and the close coupling of the compression system with advanced prime mover cycles ...
El-Suleiman, Abdussalam
core  

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