Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant

Recuperator is a heat exchanger that is used in gas turbine power plants to recover energy from outlet hot gases to heat up the air entering the combustion chamber. Similarly, the combustion chamber inlet air can be heated up to temperatures up to 1000 (°C) by solar power tower (SPT) as a renewable...

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Main Authors: Ali Rajaei, Hasan Barzegar Avval, Elmira Eslami
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:International Journal of Chemical Engineering
Online Access:http://dx.doi.org/10.1155/2016/8323859
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author Ali Rajaei
Hasan Barzegar Avval
Elmira Eslami
author_facet Ali Rajaei
Hasan Barzegar Avval
Elmira Eslami
author_sort Ali Rajaei
collection DOAJ
description Recuperator is a heat exchanger that is used in gas turbine power plants to recover energy from outlet hot gases to heat up the air entering the combustion chamber. Similarly, the combustion chamber inlet air can be heated up to temperatures up to 1000 (°C) by solar power tower (SPT) as a renewable and environmentally benign energy source. In this study, comprehensive comparison between these two systems in terms of energy, exergy, and environmental impacts is carried out. Thermodynamic simulation of both cycles is conducted using a developed program in MATLAB environment. Exergetic performances of both cycles and their emissions are compared and parametric study is carried out. A new parameter (renewable factor) is proposed to evaluate resources quality and measure how green an exergy loss or destruction or a system as a whole is. Nonrenewable exergy destruction and loss are reduced compared to GT with recuperator cycle by 34.89% and 47.41%, respectively. Reductions in CO2, NOx, and CO compared to GT with recuperator cycle by 49.92%, 66.14%, and 39.77%, respectively, are in line with renewable factor value of around 55.7 which proves the ability of the proposed green measure to evaluate and compare the cycles performances.
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institution Kabale University
issn 1687-806X
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series International Journal of Chemical Engineering
spelling doaj-art-b2e9dfec202e4e6684bde8a85cbeb2382025-02-03T05:47:18ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782016-01-01201610.1155/2016/83238598323859Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power PlantAli Rajaei0Hasan Barzegar Avval1Elmira Eslami2Power and Water University of Technology, Tehran, IranEnergy Optimization Research and Development Group (EORDG), Tehran, IranPower and Water University of Technology, Tehran, IranRecuperator is a heat exchanger that is used in gas turbine power plants to recover energy from outlet hot gases to heat up the air entering the combustion chamber. Similarly, the combustion chamber inlet air can be heated up to temperatures up to 1000 (°C) by solar power tower (SPT) as a renewable and environmentally benign energy source. In this study, comprehensive comparison between these two systems in terms of energy, exergy, and environmental impacts is carried out. Thermodynamic simulation of both cycles is conducted using a developed program in MATLAB environment. Exergetic performances of both cycles and their emissions are compared and parametric study is carried out. A new parameter (renewable factor) is proposed to evaluate resources quality and measure how green an exergy loss or destruction or a system as a whole is. Nonrenewable exergy destruction and loss are reduced compared to GT with recuperator cycle by 34.89% and 47.41%, respectively. Reductions in CO2, NOx, and CO compared to GT with recuperator cycle by 49.92%, 66.14%, and 39.77%, respectively, are in line with renewable factor value of around 55.7 which proves the ability of the proposed green measure to evaluate and compare the cycles performances.http://dx.doi.org/10.1155/2016/8323859
spellingShingle Ali Rajaei
Hasan Barzegar Avval
Elmira Eslami
Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
International Journal of Chemical Engineering
title Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
title_full Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
title_fullStr Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
title_full_unstemmed Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
title_short Exergy and Environmental Impact Assessment between Solar Powered Gas Turbine and Conventional Gas Turbine Power Plant
title_sort exergy and environmental impact assessment between solar powered gas turbine and conventional gas turbine power plant
url http://dx.doi.org/10.1155/2016/8323859
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AT hasanbarzegaravval exergyandenvironmentalimpactassessmentbetweensolarpoweredgasturbineandconventionalgasturbinepowerplant
AT elmiraeslami exergyandenvironmentalimpactassessmentbetweensolarpoweredgasturbineandconventionalgasturbinepowerplant