Results 21 to 30 of about 6,109 (270)

Analysis and Improvement of a Two-Stage Centrifugal Compressor Used in an MW-Level Gas Turbine

Applied Sciences, 2018
The performance of a low/high-pressure-stage centrifugal compressor in a land-use MW-level gas turbine with a pressure ratio of approximately 11 is analyzed and optimized with a 1D aerodynamic design and modeling optimization system.
Wei Zhu, Xiao-Dong Ren, Xue-Song Li, Chun-Wei Gu   +3 more
doaj   +1 more source

Aerodynamic design and strength check of a two-stage dual-rotor opposed centrifugal compressor

Zhongguo Jianchuan Yanjiu, 2019
[Objectives] To accomplish the design of a two-stage dual-rotor opposed centrifugal compressor for a small gas turbine,[Methods] the compressor is subject to aerodynamic design and three-dimensional flow field check by using the software Concepts NREC ...
Geng Shaojuan, Ni Ming, Ding Linchao, Wang Wentao, Zhang Xiaoyu   +4 more
doaj   +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

Rapid Modeling Method for Performance Prediction of Centrifugal Compressor Based on Model Migration and SVM

IEEE Access, 2017
An accurate model is important for design and optimization control of centrifugal compressor. However, due to the varying operation conditions and the complexity of the flow dynamics inside it, establishing a satisfaction model of a new compressor is ...
Fei Chu, Bangwu Dai, Wei Dai, Runda Jia, Xiaoping Ma, Fuli Wang   +5 more
doaj   +1 more source

Spatiotemporal Evolution and Fluctuation Characteristics of a Centrifugal Compressor under Near-Stall Conditions and High Mass-Flow Rate

Energies, 2022
Spatiotemporal evolution and fluctuation characteristics of a centrifugal compressor are investigated by numerical simulation under near-stall conditions and with a high mass-flow rate.
Kang Xiao, Zhengdao Wang, Hui Yang, Yikun Wei   +3 more
doaj   +1 more source

Direction for High-Performance Supercritical CO₂ Centrifugal Compressor Design for Dry Cooled Supercritical CO₂ Brayton Cycle

Applied Sciences, 2019
To overcome the degradation of the cycle efficiency of a supercritical carbon dioxide (S-CO2) Brayton cycle with dry cooling, this study proposes an improved design of an S-CO2 centrifugal compressor.
Seong Kuk Cho, Seong Jun Bae, Yongju Jeong, Jekyoung Lee, Jeong Ik Lee   +4 more
doaj   +1 more source

Time-Marching Throughflow Analysis of Centrifugal Compressors with Boundary Conditions Based on Newton’s Method

Applied Sciences, 2022
The meridional distribution of the flow parameters inside the centrifugal compressor is of great importance to its overall performance, as well as its matching performance under a thermal cycle.
Chen Yang, Juan Du, Hongwu Zhang, Hu Wu, Qing Tang, Jinguang Yang   +5 more
doaj   +1 more source

The Current State of the Engineering Method for the Optimal Gas-Dynamic Design and Calculation of Centrifugal Compressor

Energies, 2020
In the practice of centrifugal compressor designing, different engineering techniques are widely used because flow motion differential equations cannot be integrated, and Computational fluid dynamics cannot resolve the problem as a whole.
Yuri Galerkin, Aleksey Rekstin, Kristina Soldatova, Aleksandr Drozdov, Olga Solovyeva, Vasiliy Semenovskiy, Lyubov Marenina   +6 more
doaj   +1 more source

Assessment of turbulence model predictions for a centrifugal compressor simulation [PDF]

, 2017
Steady-state computational fluid dynamics (CFD) simulations are an essential tool in the design process of centrifugal compressors. Whilst global parameters, such as pressure ratio and efficiency, can be predicted with reasonable accuracy, the accurate ...
Sung in Kim, Stephen Spence, Galloway, Lee, Kim, Sung in, Spence, Stephen, Gibson, Lee, Lee Galloway, Lee Gibson   +7 more
core   +1 more source

PARAMETRIC DIAGNOSTICS OF THE CENTRIFUGAL SUPERCHARGER'S TECHNICAL CONDITION DURING OPERATION

Вестник Дагестанского государственного технического университета: Технические науки, 2018
. Objectives The main aim is to develop a mathematical model of a centrifugal compressor and carry out a parametric diagnostics of a centrifugal supercharger's technical condition during operation.
Regina A. Khuramshina
doaj   +1 more source