Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser

The purpose of this work is to develop and test the methodology of elucidation of the reasons for turbine unit capacity limitations based on a mathematical model of its condenser. This pur-pose is achieved by using a mathematical model of the condenser as part of the developed methodology, taking in...

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Autor principal:	Shempelev A. G.
Formato:	article
Lenguaje:	EN RO RU
Publicado:	Academy of Sciences of Moldova 2021
Materias:	steam turbine capacity condenser main ejector limitations condenser pressure mathematical model of a condenser. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/5b61c0e3eb88453aafc952f7bdcc8012
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id	oai:doaj.org-article:5b61c0e3eb88453aafc952f7bdcc8012
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spelling	oai:doaj.org-article:5b61c0e3eb88453aafc952f7bdcc80122021-11-26T15:24:21ZDevelopment and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser10.52254/1857-0070.2021.4-52.081857-0070https://doaj.org/article/5b61c0e3eb88453aafc952f7bdcc80122021-11-01T00:00:00Zhttps://journal.ie.asm.md/assets/files/08_04_52_2021.pdfhttps://doaj.org/toc/1857-0070The purpose of this work is to develop and test the methodology of elucidation of the reasons for turbine unit capacity limitations based on a mathematical model of its condenser. This pur-pose is achieved by using a mathematical model of the condenser as part of the developed methodology, taking into account the separate effects of contamination of the heat exchange surfaces, air suction into the vacuum system and the operating mode of the main ejector. Based on operational data sampling, the value of the limiting pressure in the condenser, excess of which leads to limitation of turbine unit capacity, was determined. It was established that the cause of power limitation is the abnormal operation of the main ejector due to inadmissible high temperature in the intermediate cooler of its first stage. For regimes that were not pressure-limited, using a mathematical model, the degree of tubes contamination, its influence on the condenser pressure and the power generated by the turbine unit, and the influence of actual air suctions on the condenser pressure were determined. The most important result of the study is to determine the possibility and feasibility of using the developed and tested methodology for solv-ing similar problems for any type of turbine unit equipped with a condenser. The significance of the work lies in the fact that the proposed approach expands the possibilities of using mathemat-ical models of this class in terms of solving such problems.Shempelev A. G.Academy of Sciences of Moldovaarticlesteam turbinecapacitycondensermain ejectorlimitationscondenser pressuremathematical model of a condenser.Electrical engineering. Electronics. Nuclear engineeringTK1-9971Production of electric energy or power. Powerplants. Central stationsTK1001-1841Renewable energy sourcesTJ807-830ENRORUProblems of the Regional Energetics, Vol 4(52), Iss 4, Pp 79-87 (2021)
institution	DOAJ
collection	DOAJ
language	EN RO RU
topic	steam turbine capacity condenser main ejector limitations condenser pressure mathematical model of a condenser. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830
spellingShingle	steam turbine capacity condenser main ejector limitations condenser pressure mathematical model of a condenser. Electrical engineering. Electronics. Nuclear engineering TK1-9971 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Renewable energy sources TJ807-830 Shempelev A. G. Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
description	The purpose of this work is to develop and test the methodology of elucidation of the reasons for turbine unit capacity limitations based on a mathematical model of its condenser. This pur-pose is achieved by using a mathematical model of the condenser as part of the developed methodology, taking into account the separate effects of contamination of the heat exchange surfaces, air suction into the vacuum system and the operating mode of the main ejector. Based on operational data sampling, the value of the limiting pressure in the condenser, excess of which leads to limitation of turbine unit capacity, was determined. It was established that the cause of power limitation is the abnormal operation of the main ejector due to inadmissible high temperature in the intermediate cooler of its first stage. For regimes that were not pressure-limited, using a mathematical model, the degree of tubes contamination, its influence on the condenser pressure and the power generated by the turbine unit, and the influence of actual air suctions on the condenser pressure were determined. The most important result of the study is to determine the possibility and feasibility of using the developed and tested methodology for solv-ing similar problems for any type of turbine unit equipped with a condenser. The significance of the work lies in the fact that the proposed approach expands the possibilities of using mathemat-ical models of this class in terms of solving such problems.
format	article
author	Shempelev A. G.
author_facet	Shempelev A. G.
author_sort	Shempelev A. G.
title	Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
title_short	Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
title_full	Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
title_fullStr	Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
title_full_unstemmed	Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser
title_sort	development and approbation of methodology aimed to define the reasons for turbine unit capacity limitation based on the specified mathematical model of its condenser
publisher	Academy of Sciences of Moldova
publishDate	2021
url	https://doaj.org/article/5b61c0e3eb88453aafc952f7bdcc8012
work_keys_str_mv	AT shempelevag developmentandapprobationofmethodologyaimedtodefinethereasonsforturbineunitcapacitylimitationbasedonthespecifiedmathematicalmodelofitscondenser
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Development and Approbation of Methodology Aimed to Define the Reasons for Turbine Unit Capacity Limitation Based on the Specified Mathematical Model of its Condenser

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