Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles

Indirectly or externally-fired gas-turbines (IFGT or EFGT) are novel technology under development for small and medium scale combined power and heat supplies in combination with micro gas turbine technologies mainly for the utilization of the waste heat from the turbine in a recuperative process and...

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Main Authors: Ma Zheshu, Zhu Zhenhuan
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2009-01-01
Series:Thermal Science
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0354-9836/2009/0354-98360904041M.pdf
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spelling doaj-c96a2b06fe4a4d71a96f96cd6f68cb382021-01-02T15:06:55ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362334-71632009-01-01134414810.2298/TSCI0904041M0354-98360904041MThermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cyclesMa Zheshu0Zhu Zhenhuan1Department of Power Engineering, Jiangsu University of Science and Technology, Zhenjiang City, Jiangsu Province, P.R. ChinaUniversity of Manchester, School of Mechanical, Aerospace and Civil Engineering, Manchester, UKIndirectly or externally-fired gas-turbines (IFGT or EFGT) are novel technology under development for small and medium scale combined power and heat supplies in combination with micro gas turbine technologies mainly for the utilization of the waste heat from the turbine in a recuperative process and the possibility of burning biomass or 'dirty' fuel by employing a high temperature heat exchanger to avoid the combustion gases passing through the turbine. In this paper, by assuming that all fluid friction losses in the compressor and turbine are quantified by a corresponding isentropic efficiency and all global irreversibilities in the high temperature heat exchanger are taken into account by an effective efficiency, a one dimensional model including power output and cycle efficiency formulation is derived for a class of real IFGT cycles. To illustrate and analyze the effect of operational parameters on IFGT efficiency, detailed numerical analysis and figures are produced. The results summarized by figures show that IFGT cycles are most efficient under low compression ratio ranges (3.0-6.0) and fit for low power output circumstances integrating with micro gas turbine technology. The model derived can be used to analyze and forecast performance of real IFGT configurations.http://www.doiserbia.nb.rs/img/doi/0354-9836/2009/0354-98360904041M.pdfindirectly fired gas turbinethermodynamic analysisbioenergybiomass utilizationmicro gas turbine
collection DOAJ
language English
format Article
sources DOAJ
author Ma Zheshu
Zhu Zhenhuan
spellingShingle Ma Zheshu
Zhu Zhenhuan
Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
Thermal Science
indirectly fired gas turbine
thermodynamic analysis
bioenergy
biomass utilization
micro gas turbine
author_facet Ma Zheshu
Zhu Zhenhuan
author_sort Ma Zheshu
title Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
title_short Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
title_full Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
title_fullStr Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
title_full_unstemmed Thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
title_sort thermodynamic modelling and efficiency analysis of a class of real indirectly fired gas turbine cycles
publisher VINCA Institute of Nuclear Sciences
series Thermal Science
issn 0354-9836
2334-7163
publishDate 2009-01-01
description Indirectly or externally-fired gas-turbines (IFGT or EFGT) are novel technology under development for small and medium scale combined power and heat supplies in combination with micro gas turbine technologies mainly for the utilization of the waste heat from the turbine in a recuperative process and the possibility of burning biomass or 'dirty' fuel by employing a high temperature heat exchanger to avoid the combustion gases passing through the turbine. In this paper, by assuming that all fluid friction losses in the compressor and turbine are quantified by a corresponding isentropic efficiency and all global irreversibilities in the high temperature heat exchanger are taken into account by an effective efficiency, a one dimensional model including power output and cycle efficiency formulation is derived for a class of real IFGT cycles. To illustrate and analyze the effect of operational parameters on IFGT efficiency, detailed numerical analysis and figures are produced. The results summarized by figures show that IFGT cycles are most efficient under low compression ratio ranges (3.0-6.0) and fit for low power output circumstances integrating with micro gas turbine technology. The model derived can be used to analyze and forecast performance of real IFGT configurations.
topic indirectly fired gas turbine
thermodynamic analysis
bioenergy
biomass utilization
micro gas turbine
url http://www.doiserbia.nb.rs/img/doi/0354-9836/2009/0354-98360904041M.pdf
work_keys_str_mv AT mazheshu thermodynamicmodellingandefficiencyanalysisofaclassofrealindirectlyfiredgasturbinecycles
AT zhuzhenhuan thermodynamicmodellingandefficiencyanalysisofaclassofrealindirectlyfiredgasturbinecycles
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