Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature

Cogeneration represents one of the main ways for increasing the efficiency of primary energy use. This paper deals with a theoretical analysis of cogeneration plants equipped with various back-pressure turbines type R. These plants are studied during their operation with conventional method (water i...

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Main Authors: Moayed Razoki Hasan, Mohammed Jasim Salih
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2013-09-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_83385_8c1e74be7e8f0a322f85315054c42153.pdf
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author Moayed Razoki Hasan
Mohammed Jasim Salih
author_facet Moayed Razoki Hasan
Mohammed Jasim Salih
author_sort Moayed Razoki Hasan
collection DOAJ
description Cogeneration represents one of the main ways for increasing the efficiency of primary energy use. This paper deals with a theoretical analysis of cogeneration plants equipped with various back-pressure turbines type R. These plants are studied during their operation with conventional method (water injection) and the suggested method (sliding live steam temperature) to regulate steam temperature supplied to the industrial consumers. A computer program had been written to work under MathCad software to simulate cogeneration plant with each back-pressure turbine under design and off design conditions. The performance of the different schemes is analysed in view of the first and second laws. In this analysis entropy method (second law) in addition to more conventional energy analysis (first law), are employed to evaluate overall and component efficiencies, fuel consumption and to identify the thermodynamic losses. The results show that, using the suggested method leads to increase the overall efficiency of the cogeneration plant for all types of back-pressure turbine and can reduce the fuel consumption. Finally, the results show that increasing back-pressure leads to improve the performance of cogeneration plant regardless of the method used.
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spelling doaj.art-deeb000f5abb41e1a5d060d34d65cce42024-02-04T17:36:20ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582013-09-0131163007303410.30684/etj.31.16A.283385Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam TemperatureMoayed Razoki HasanMohammed Jasim SalihCogeneration represents one of the main ways for increasing the efficiency of primary energy use. This paper deals with a theoretical analysis of cogeneration plants equipped with various back-pressure turbines type R. These plants are studied during their operation with conventional method (water injection) and the suggested method (sliding live steam temperature) to regulate steam temperature supplied to the industrial consumers. A computer program had been written to work under MathCad software to simulate cogeneration plant with each back-pressure turbine under design and off design conditions. The performance of the different schemes is analysed in view of the first and second laws. In this analysis entropy method (second law) in addition to more conventional energy analysis (first law), are employed to evaluate overall and component efficiencies, fuel consumption and to identify the thermodynamic losses. The results show that, using the suggested method leads to increase the overall efficiency of the cogeneration plant for all types of back-pressure turbine and can reduce the fuel consumption. Finally, the results show that increasing back-pressure leads to improve the performance of cogeneration plant regardless of the method used.https://etj.uotechnology.edu.iq/article_83385_8c1e74be7e8f0a322f85315054c42153.pdfcogenerationcombined heat and power plantback pressure turbinelive steam temperature
spellingShingle Moayed Razoki Hasan
Mohammed Jasim Salih
Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
Engineering and Technology Journal
cogeneration
combined heat and power plant
back pressure turbine
live steam temperature
title Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
title_full Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
title_fullStr Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
title_full_unstemmed Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
title_short Modeling and Simulation of the Cogeneration Plant Equipped with Back-Pressure Turbine Operates at Various Control Programs of Exit Steam Temperature
title_sort modeling and simulation of the cogeneration plant equipped with back pressure turbine operates at various control programs of exit steam temperature
topic cogeneration
combined heat and power plant
back pressure turbine
live steam temperature
url https://etj.uotechnology.edu.iq/article_83385_8c1e74be7e8f0a322f85315054c42153.pdf
work_keys_str_mv AT moayedrazokihasan modelingandsimulationofthecogenerationplantequippedwithbackpressureturbineoperatesatvariouscontrolprogramsofexitsteamtemperature
AT mohammedjasimsalih modelingandsimulationofthecogenerationplantequippedwithbackpressureturbineoperatesatvariouscontrolprogramsofexitsteamtemperature