Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study

The backpressure steam turbine installations for combined production generate thermal energy and electricity. The produced electricity depends on the heat load determined by consumers. Heat energy is released in the district heating system through water, which is heated with the exhausted steam in b...

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Autores principales:	Hristov Kaloyan, Genovski Ivan
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/74f8b0475a6f41e58ae1960e529d2738
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spelling	oai:doaj.org-article:74f8b0475a6f41e58ae1960e529d27382021-12-02T17:12:19ZMathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study2267-124210.1051/e3sconf/202132701003https://doaj.org/article/74f8b0475a6f41e58ae1960e529d27382021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/103/e3sconf_pepm2021_01003.pdfhttps://doaj.org/toc/2267-1242The backpressure steam turbine installations for combined production generate thermal energy and electricity. The produced electricity depends on the heat load determined by consumers. Heat energy is released in the district heating system through water, which is heated with the exhausted steam in boiler-condenser (district heater). The operation regime of the installation is influenced by load of the released district heat and the temperature of the district heat water at the input and output of the boiler-condenser. The variables are heat load of the district heating system and temperature of district heat water at power plant output. The temperature of the district heat water at the boiler-condenser input is an uncontrollable variable, whose value depends on heat consumption. It influences the steam pressure in the boiler-condenser and the available enthalpy drop of the cogeneration installation. In this report, a verified simulation model is applied on a backpressure steam turbine installation, type SST-300 CE2L/V36S. A multivariate simulation is carried out, studying the performance of the installation in off-design regimes. The results obtained are used for the creation of regression models of the installation’s energy characteristics. They reveal the dependence between the energy characteristics of the cogeneration steam turbine by the released heat load in the district heating system and the temperature of incoming and outgoing district heat water. The accuracy of the developed models is evaluated through multiple correlation coefficients. The mathematical models could be successfully used to optimize the operating regime of the backpressure steam turbine installation.Hristov KaloyanGenovski IvanEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 327, p 01003 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Hristov Kaloyan Genovski Ivan Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
description	The backpressure steam turbine installations for combined production generate thermal energy and electricity. The produced electricity depends on the heat load determined by consumers. Heat energy is released in the district heating system through water, which is heated with the exhausted steam in boiler-condenser (district heater). The operation regime of the installation is influenced by load of the released district heat and the temperature of the district heat water at the input and output of the boiler-condenser. The variables are heat load of the district heating system and temperature of district heat water at power plant output. The temperature of the district heat water at the boiler-condenser input is an uncontrollable variable, whose value depends on heat consumption. It influences the steam pressure in the boiler-condenser and the available enthalpy drop of the cogeneration installation. In this report, a verified simulation model is applied on a backpressure steam turbine installation, type SST-300 CE2L/V36S. A multivariate simulation is carried out, studying the performance of the installation in off-design regimes. The results obtained are used for the creation of regression models of the installation’s energy characteristics. They reveal the dependence between the energy characteristics of the cogeneration steam turbine by the released heat load in the district heating system and the temperature of incoming and outgoing district heat water. The accuracy of the developed models is evaluated through multiple correlation coefficients. The mathematical models could be successfully used to optimize the operating regime of the backpressure steam turbine installation.
format	article
author	Hristov Kaloyan Genovski Ivan
author_facet	Hristov Kaloyan Genovski Ivan
author_sort	Hristov Kaloyan
title	Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
title_short	Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
title_full	Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
title_fullStr	Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
title_full_unstemmed	Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study
title_sort	mathematical models of the energy characteristics of a backpressure steam turbine based on a simulation study
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/74f8b0475a6f41e58ae1960e529d2738
work_keys_str_mv	AT hristovkaloyan mathematicalmodelsoftheenergycharacteristicsofabackpressuresteamturbinebasedonasimulationstudy AT genovskiivan mathematicalmodelsoftheenergycharacteristicsofabackpressuresteamturbinebasedonasimulationstudy
_version_	1718381440098369536

Mathematical Models of the Energy Characteristics of a Backpressure Steam Turbine Based on a Simulation Study

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