Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application

A performance analysis of a three stage axial flow compressor with part load consideration in gas turbine application regarding surge margin is presented in this paper. A three stage compressor was designed and numerical simulation as well as a modified stream line curvature analysis was applied to...

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Main Authors: Majid ASLI, Abolghasem M. TOUSI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2013-09-01
Series:Journal of Thermal Science and Technology
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jtst/8/3/8_476/_pdf/-char/en
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author Majid ASLI
Abolghasem M. TOUSI
author_facet Majid ASLI
Abolghasem M. TOUSI
author_sort Majid ASLI
collection DOAJ
description A performance analysis of a three stage axial flow compressor with part load consideration in gas turbine application regarding surge margin is presented in this paper. A three stage compressor was designed and numerical simulation as well as a modified stream line curvature analysis was applied to validate the design model. These two analyses verified the design which was based on a test case model and showed an acceptable accuracy. Performance was predicted by introducing a modified one dimensional method for the compressor. A typical gas turbine with specific components was considered to evaluate the effect of compressor early design parameters on its behavior at part loads. Four compressors were designed with change in reaction ratio and flow coefficient as the input data of the design process. The analysis showed that an increase of 8% and decrease of 5% in reaction ratio and flow coefficient respectively, compared with the base design model, would lead to getting away the running line from the surge line by an amount of 5% approximately and working in a safer margin as well as higher efficiency working range, so the energy conversion can be done efficiently.
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spelling doaj.art-f6bb88e2421a4c63a403dc11e96283b02022-12-21T18:11:26ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662013-09-018347648710.1299/jtst.8.476jtstPerformance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine ApplicationMajid ASLI0Abolghasem M. TOUSI1Department of Aerospace Engineering, Amirkabir University of TechnologyDepartment of Aerospace Engineering, Amirkabir University of TechnologyA performance analysis of a three stage axial flow compressor with part load consideration in gas turbine application regarding surge margin is presented in this paper. A three stage compressor was designed and numerical simulation as well as a modified stream line curvature analysis was applied to validate the design model. These two analyses verified the design which was based on a test case model and showed an acceptable accuracy. Performance was predicted by introducing a modified one dimensional method for the compressor. A typical gas turbine with specific components was considered to evaluate the effect of compressor early design parameters on its behavior at part loads. Four compressors were designed with change in reaction ratio and flow coefficient as the input data of the design process. The analysis showed that an increase of 8% and decrease of 5% in reaction ratio and flow coefficient respectively, compared with the base design model, would lead to getting away the running line from the surge line by an amount of 5% approximately and working in a safer margin as well as higher efficiency working range, so the energy conversion can be done efficiently.https://www.jstage.jst.go.jp/article/jtst/8/3/8_476/_pdf/-char/enperformancegas turbinecompressor characteristicspart speedworking linepressure ratio
spellingShingle Majid ASLI
Abolghasem M. TOUSI
Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
Journal of Thermal Science and Technology
performance
gas turbine
compressor characteristics
part speed
working line
pressure ratio
title Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
title_full Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
title_fullStr Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
title_full_unstemmed Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
title_short Performance Analysis of Axial Flow Compressor and Part Load Consideration in a Gas Turbine Application
title_sort performance analysis of axial flow compressor and part load consideration in a gas turbine application
topic performance
gas turbine
compressor characteristics
part speed
working line
pressure ratio
url https://www.jstage.jst.go.jp/article/jtst/8/3/8_476/_pdf/-char/en
work_keys_str_mv AT majidasli performanceanalysisofaxialflowcompressorandpartloadconsiderationinagasturbineapplication
AT abolghasemmtousi performanceanalysisofaxialflowcompressorandpartloadconsiderationinagasturbineapplication