Second Law Analysis of Alternative Regenerative Gas Turbine

The second law of thermodynamics has proved to be a very powerful tool in optimization of complex thermodynamic systems. This paper involves an exergy analysis of three configurations of gas turbine units, simple unit with no regenerator, conventional regenerative gas turbine unit and alternative r...

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Main Authors: A R. Al-Habbo, Khalid . I. Hasan, Marwan F.Basheer
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2012-12-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1252
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author A R. Al-Habbo
Khalid . I. Hasan
Marwan F.Basheer
author_facet A R. Al-Habbo
Khalid . I. Hasan
Marwan F.Basheer
author_sort A R. Al-Habbo
collection DOAJ
description The second law of thermodynamics has proved to be a very powerful tool in optimization of complex thermodynamic systems. This paper involves an exergy analysis of three configurations of gas turbine units, simple unit with no regenerator, conventional regenerative gas turbine unit and alternative regenerative gas turbine unit. Obviously, in conventional regenerative gas turbine cycle, the position of regenerator is placed immediately after the low pressure turbine. In the current study the position of regenerator is suggested to be immediately after the high pressure turbine. This may result in preheating the compressed air to a high temperature before admitting to the combustion chamber and also lowers the low pressure turbine exit temperature.Results show that the second law efficiency of alternative regenerative gas turbine has been increased throughout the pressure ratio range (6-20) for fixed turbine inlet temperature (1400K) as well as throughout the turbine inlet temperature range (1100-1750 K) for optimum pressure ratio nearly by (52%, 12%) and (23%, 11.6%) as compared to simple and conventional regenerative cycle respectively. The exergy loss due to irreversibility in combustion chamber. 
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spelling doaj.art-ee1cdac48dfb482cbf905512268591e92022-12-22T04:12:00ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-12-01164Second Law Analysis of Alternative Regenerative Gas TurbineA R. Al-Habbo0Khalid . I. Hasan1Marwan F.Basheer2Mechanical Engineering Department, University of Mosul, Mosul, IraqMechanical Engineering Department, University of Mosul, Mosul, IraqMechanical Engineering Department, University of Mosul, Mosul, Iraq The second law of thermodynamics has proved to be a very powerful tool in optimization of complex thermodynamic systems. This paper involves an exergy analysis of three configurations of gas turbine units, simple unit with no regenerator, conventional regenerative gas turbine unit and alternative regenerative gas turbine unit. Obviously, in conventional regenerative gas turbine cycle, the position of regenerator is placed immediately after the low pressure turbine. In the current study the position of regenerator is suggested to be immediately after the high pressure turbine. This may result in preheating the compressed air to a high temperature before admitting to the combustion chamber and also lowers the low pressure turbine exit temperature.Results show that the second law efficiency of alternative regenerative gas turbine has been increased throughout the pressure ratio range (6-20) for fixed turbine inlet temperature (1400K) as well as throughout the turbine inlet temperature range (1100-1750 K) for optimum pressure ratio nearly by (52%, 12%) and (23%, 11.6%) as compared to simple and conventional regenerative cycle respectively. The exergy loss due to irreversibility in combustion chamber.  https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1252Gas turbineExergyRegenerationIrreversibility
spellingShingle A R. Al-Habbo
Khalid . I. Hasan
Marwan F.Basheer
Second Law Analysis of Alternative Regenerative Gas Turbine
Journal of Engineering and Sustainable Development
Gas turbine
Exergy
Regeneration
Irreversibility
title Second Law Analysis of Alternative Regenerative Gas Turbine
title_full Second Law Analysis of Alternative Regenerative Gas Turbine
title_fullStr Second Law Analysis of Alternative Regenerative Gas Turbine
title_full_unstemmed Second Law Analysis of Alternative Regenerative Gas Turbine
title_short Second Law Analysis of Alternative Regenerative Gas Turbine
title_sort second law analysis of alternative regenerative gas turbine
topic Gas turbine
Exergy
Regeneration
Irreversibility
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1252
work_keys_str_mv AT aralhabbo secondlawanalysisofalternativeregenerativegasturbine
AT khalidihasan secondlawanalysisofalternativeregenerativegasturbine
AT marwanfbasheer secondlawanalysisofalternativeregenerativegasturbine