23 research outputs found
The application of modern computational fluid dynamics techniques for increasing the efficiency and stability of an axial compressor in an industrial gas turbine
This paper contains on-site test data of an axial compressor as part of an industrial gas turbine, as well as the process of Computational Fluid Dynamics (CFD) modelling, verification, research and modernization. The research method has been verified with actual test data gathered from the real gas turbine unit (GTU) test. The computational studies showed significant potential for improving aerodynamic efficiency and the surge margin of a compressor by better matching of inlet and outer groups of stages. A special design approach was used to improve aerodynamic parameters of the inlet system and certain middle stages. Computations made for the improved compressor model showed a 3% efficiency gain and 5% stall margin gain with possibilities for further modernization. Β© 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen
Identification of corner separation modelling in axial compressor stage
The paper presents a study of corner separations in hub to blade region at various operation conditions towards compressor stall. It is known that for compressor flows with low or none separations computation fluid dynamics with RANS methods work quite well, however, for highly separated flows they are no longer entirely valid. Therefore, several criteria were applied for prediction and quantification of possible corner separation, and the main interest of this work is in predicting the separation just before it will actually happen by certain flow metrics, so these metrics can be further used as a 'pre-stall' criteria whilst the RANS CFD operating point still behave within its appropriate limits. Also the effect of shear lean is discussed in the presented context. Β© The Authors, published by EDP Sciences, 2020
Development of a mobile compressor station
Π ΡΠ°Π±ΠΎΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ Π²ΠΎΠΏΡΠΎΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΎΡΠ½ΠΎΠΉ ΡΡΠ°Π½ΡΠΈΠΈ Π΄Π»Ρ Π²ΡΠΊΠ°ΡΠΊΠΈ Π³Π°Π·Π° ΠΈΠ· ΠΌΠ°Π³ΠΈΡΡΡΠ°Π»ΡΠ½ΡΡ
Π³Π°Π·ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ² ΠΏΡΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠΈ ΠΏΠ»Π°Π½ΠΎΠ²ΡΡ
ΡΠ΅ΠΌΠΎΠ½ΡΠ½ΡΡ
ΡΠ°Π±ΠΎΡ. ΠΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ ΠΊΠΎΠΌΠΏΠΎΠ½ΠΎΠ²ΠΊΠΈ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΡ.The issues of compressor station development for pumping natural gas from the main pipeline during planned repairs are considered in the work. Also equipment arrangement options were analyzed in this work
Software development of computational fluid dynamic for an Euler equation
In this paperwork, writing an Euler equationβs solver was described. The main purpose of this work is an investigation of mathematical models to solve inviscid and compressible fluid flow in two-dimensional tasks. During this research, I explored how to influence number of CFL and artificial viscosity on an accuracy and a stability of a solution.Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ Π±ΡΠ»ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΎ Π½Π°ΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΊΠΎΠ΄Π° Π΄Π»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΠΠΉΠ»Π΅ΡΠ°. Π¦Π΅Π»ΡΡ Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠ²Π»ΡΠ»ΠΎΡΡ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΠ΅ Π½Π°Π²ΡΠΊΠΎΠ² ΠΏΡΠΈΠΊΠ»Π°Π΄Π½ΠΎΠ³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΠΌΠ΅Ρ
Π°Π½ΠΈΠΊΠΈ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΠΈ Π³Π°Π·ΠΎΠ², ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ ΡΠ΅ΡΠ΅Π½ΠΈΠΉ Π·Π°Π΄Π°Ρ Ρ ΠΈΡΡΠ΅ΡΠ΅Π½ΠΈΠ΅ΠΌ Π½Π΅Π²ΡΠ·ΠΊΠΈΡ
ΡΠΆΠΈΠΌΠ°Π΅ΠΌΡΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ. ΠΡΠ»ΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠΉ Π²ΡΠ·ΠΊΠΎΡΡΠΈ Π½Π° ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠ΅ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠ°ΡΡΠΈΠ½Π΅ ΠΈΡΡΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΠΆΠΈΠ΄ΠΊΠΎΡΡΠ΅ΠΉ. Π’Π°ΠΊΠΆΠ΅ Π±ΡΠ» ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠΈΡΠ»Π° ΠΡΡΠ°Π½ΡΠ° Π½Π° ΡΡ
ΠΎΠ΄ΠΈΠΌΠΎΡΡΡ ΡΠ°ΡΡΠ΅ΡΠ°
Analysis of strength and vibration characteristics of the first working blades of an axial compressor with rotor groove
Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΠΌΠΎΠ΄Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈ ΡΡΡΡΠΊΡΡΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΠ΅ΡΠΎΠ² Π΅Π΄ΠΈΠ½ΠΈΡΠ½ΠΎΠΉ Π»ΠΎΠΏΠ°ΡΠΊΠΈ ΠΏΠ΅ΡΠ²ΠΎΠΉ ΡΡΡΠΏΠ΅Π½ΠΈ ΠΎΡΠ΅Π²ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΎΡΠ° ΠΈ Π»ΠΎΠΏΠ°ΡΠΊΠΈ Π² ΡΠ±ΠΎΡΠΊΠ΅ Ρ ΠΏΠ°Π·ΠΎΠΌ. ΠΡΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π° Π²Π΅ΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΡΠ°ΡΡΠΎΡ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ. ΠΡΡΠ²Π»Π΅Π½Ρ Π·ΠΎΠ½Ρ Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΠ΅ΠΉ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ ΠΏΡΠΈ Π½Π°Π³ΡΡΠΆΠ΅Π½ΠΈΠΈ ΡΠ΅Π½ΡΡΠΎΠ±Π΅ΠΆΠ½ΡΠΌΠΈ ΡΠΈΠ»Π°ΠΌΠΈ Π΄Π»Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠ²Π½ΡΡ
ΠΈΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΉ Π»ΠΎΠΏΠ°ΡΠΎΡΠ½ΠΎΠ³ΠΎ Π°ΠΏΠΏΠ°ΡΠ°ΡΠ° ΡΡΡΠ±ΠΎΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΎΡΠ°. ΠΠΎΠΊΠ°Π·Π°Π½Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ ΠΏΡΡΠ΅ΠΌ Π²ΡΠ±ΠΎΡΠ° Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ΄Π°ΡΠ½ΠΎΠΉ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ.This paper presents a comparative analysis of the results of the modal and structural calculations individual blade of the first stage axial compressor and blade assembly to the groove. Verification of the natural frequencies was produced. Identified areas of localization of the intensities of stresses when loaded by centrifugal forces for various design versions of the blade apparatus of the turbocharger. Shown the possibility of reducing stress by selecting the most successful design
Experimental and calculated research of a double flow in a plane turbine latch under conditions of the stand of the department of "Turbines and engines"
The creation and purging of a nozzle from a flat turbine lattice is considered. This nozzle is calculated in ANSYS CFX. The patterns of velocity distribution and pressure drop graphs along the profile are constructed and analyzed.Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΈ ΠΏΡΠΎΠ΄ΡΠ²ΠΊΠ° Π½Π°ΡΠ°Π΄ΠΊΠ° Ρ ΠΏΠ»ΠΎΡΠΊΠΎΠΉ ΡΡΡΠ±ΠΈΠ½Π½ΠΎΠΉ ΡΠ΅ΡΠ΅ΡΠΊΠΈ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ ΡΠ°ΡΡΠ΅Ρ ΡΡΠΎΠ³ΠΎ Π½Π°ΡΠ°Π΄ΠΊΠ° Π² ANSYS CFX. ΠΠΎΡΡΡΠΎΠ΅Π½Ρ ΠΈ ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Ρ ΠΊΠ°ΡΡΠΈΠ½Ρ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠ΅ΠΉ ΠΈ Π³ΡΠ°ΡΠΈΠΊΠΈ ΠΏΠ΅ΡΠ΅ΠΏΠ°Π΄ΠΎΠ² Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎ ΠΏΡΠΎΡΠΈΠ»Ρ
Redesign of an axial compressor with mass flow reduction of 30%
In this paper redesign process of an axial compressor of a Gas Turbine for mechanical drive is discussed together with computational results and experimental data. The goal of the project was to reduce compressor mass flow by 30% and at the same time to increase compressor specific work by about 10%. This could not be achieved by conventional methods such as re-staggering of Inlet Guide Vanes. Throughflow and CFD calculations were performed for redesigned versions. As a result an updated compressor was produced for the real engine and achieved design objectives. This paper shows how the swept area distribution along the compressor affects stage loading distribution and surge limits. Β© 2019 WIT Press
On Technical Performance Estimation of a Gas Turbine with Variable Power Turbine Vanes
AbstractThe results of a special methodology design for technical performance of a gas turbine with variable nozzles are presented in the paper. The data are provide for the industrial implementation experience and special heat engineering tests on appropriate machines. The methodology was designed with the use of approximated manufacturer characteristics where dependencies from initial conditions and GT load were adopted
3D-scanning
Π Π°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π²Ρ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΊΠΎΠ½ΡΡΠΎΠ»Ρ ΡΡΡΠ±ΠΈΠ½Π½ΡΡ
Π»ΠΎΠΏΠ°ΡΠΎΠΊ Ρ ΠΏΠΎΠΌΠΎΡΡΡ 3D-ΡΠΊΠ°Π½Π΅ΡΠ° ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠ΅Π²Π΅ΡΡ-ΠΈΠ½ΠΆΠΈΠ½ΠΈΡΠΈΠ½Π³Π°.The possibility of carrying out incoming inspection of turbine blades with the help of 3D-scanner and the possibility of reverse engineering
The influence of lean blades of highly loaded axial compressor at its integral characteristics and the stock of gas-dynamic stability
Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Π° ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΎΡΠ΅Π²ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΎΡΠ° ΠΈ Π½ΠΎΠ²ΠΎΠΉ 3D ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΠΌΠ½ΠΎΠ³ΠΎΠΊΡΠΈΡΠ΅ΡΠΈΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°. ΠΠΎΠ²ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΠ΅ Π΄Π»Ρ ΡΡΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΏΡΠ΅ΡΡΠΎΡΠ°, ΠΎΡΠ½ΠΎΠ²Π°Π½Ρ Π½Π° Π°Π²ΡΠΎΠΌΠ°ΡΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠΈ Π°ΡΡΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΎΡΠΈΠ»Ρ Π² IOSΠ NM ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ Ρ 3D-CFD Π°Π½Π°Π»ΠΈΠ·ΠΎΠΌ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ ΠΌΠ½ΠΎΠ³ΠΎΡΡΡΠΏΠ΅Π½ΡΠ°ΡΡΠΉ CFD Π°Π½Π°Π»ΠΈΠ· Π΄Π»Ρ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π½Π°Π³ΡΡΠ·ΠΊΠΈ ΠΏΠΎ ΡΡΡΠΏΠ΅Π½ΡΠΌ ΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
ΡΠ²ΠΎΠΉΡΡΠ². CFD Π°Π½Π°Π»ΠΈΠ· ΡΡΠΏΠ΅ΡΠ½ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π», ΡΡΠΎ ΡΡΡΠ²Ρ Π² ΠΊΠΎΡΠ½Π΅Π²ΠΎΠΉ ΡΠ°ΡΡΠΈ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ½ΠΈΠΆΠ΅Π½Ρ.This paper presents the modification of the current baseline axial flow compressor design and the development of a new 3D design using an automated multi-objective optimization process. The new design methodology used to this compressor design was based on an automated airfoil geometric optimization system in the IOSO NM combined with a 3D-CFD analysis. A multi-stage CFD analysis was used effectively in order to adjust a loading distribution along stages and to obtain a proper stage matching. CFD analysis showed that hub corner stall was successfully suppressed