Estimation Method of Greenhouse Gases Emissions at Thermal Power Plants

2019 ◽  
Author(s):  
Igor Volchyn ◽  
Liydmyla Haponych ◽  
Vitaliy Mokretskyy
Keyword(s):  
Greenhouse Gases ◽  
Power Plants ◽  
Thermal Power ◽  
Estimation Method ◽  
Thermal Power Plants ◽  
Greenhouse Gases Emissions

scholarly journals EMISSIONS OF GREENHOUSE GASES FROM UKRAINIAN THERMAL POWER PLANTS

2019 ◽  
pp. 3-12 ◽  
Author(s):  
I.A. Volchyn ◽  
L.S. Haponych
Keyword(s):  
Greenhouse Gases ◽  
Carbon Content ◽  
Co2 Emission ◽  
Power Plants ◽  
Thermal Power ◽  
Calorific Value ◽  
Unburned Carbon ◽  
Thermal Power Plants ◽  
Organic Fuels ◽  
Ch4 And N2o

In 2014, Ukraine signed and ratified the Agreement on associated with the EU. One of the requirements advanced in this Agreement lies in establishing the procedures of monitoring, reporting, and verification of the emissions of greenhouse gases (GG) from power plants. This system is based on the assemblage of procedures for estimating the GG emissions. Greenhouse gases formed at the combustion of organic fuels are CO2, CH4, and N2O. Carbon dioxide is the main GG emitted by power plants. In carrying out this work, we developed a method for the calculation of CO2 emission, formed during coal firing at thermal power plants (TPP), based on the carbon content factors with regard for the low calorific value of coal and heat loss due to unburned carbon. Using this method, we obtained the values of specific carbon content factors, CO2 emission factors and gross CO2 emissions from Ukrainian TPP during the last years. We also calculated the gross GG emissions. In 2018, the GG emissions at Ukrainian TPP were equal to 45.5 mln t of CO2-equivalent.The values of specific GG emissions per unit of supplied electric power constituted 1126 g/kW-h. This parameter reached 1186 g/kW-h for coal of grade A and L, and 1112 g/kW-h for grades G and DG. Ref. 16, Tab. 8.

Multi criteria FMECA for coal-fired thermal power plants using COPRAS-G

2014 ◽  
Vol 31 (5) ◽  
pp. 601-614 ◽  
Author(s):  
Debasis Das Adhikary ◽  
Goutam Kumar Bose ◽  
Dipankar Bose ◽  
Souren Mitra
Keyword(s):  
Failure Mode ◽  
Power Plants ◽  
Failure Modes ◽  
Thermal Power ◽  
Uncertain Data ◽  
Estimation Method ◽  
Straight Tube ◽  
Thermal Power Plants ◽  
Content Type ◽  
Criticality Analysis

Purpose – The purpose of this paper is to present a multi criterion failure mode effect and criticality analysis for coal-fired thermal power plants using uncertain data as well as substituting the traditional risk priority number estimation method. Design/methodology/approach – Grey-complex proportional assessment (COPRAS-G) method, a multi criteria decision making tool is applied to evaluate the criticalities of the failure modes (alternatives). In this model the criteria (criticality factor) against each alternative are expressed in grey number instead of crisp values. Findings – Rupture failure of the straight tube of economizer (ECO) due to erosion is the highest critical failure mode whereas rupture failure of the stub of ECO due to welding defect is the lowest critical failure mode. Originality/value – This paper incorporates human and environmental factors as additional factors which also influence the failure modes significantly. The COPRAS-G method is modified according this problem. Uncertainty in the scoring of criticality factors against each failure mode by various maintenance personnel is expressed in grey numbers.

scholarly journals INFORMATION CONTENT OF MODELS FOR DETERMINING THE ENVIRONMENTAL CHARACTERISTICS OF THE ENERGY FACILITIES FUNCTIONING

2021 ◽  
pp. 49-61
Author(s):  
Елена Петровна Майсюк ◽  
Ирина Юрьевна Иванова ◽  
Роман Андреевич Иванов
Keyword(s):  
Greenhouse Gases ◽  
Information Content ◽  
Power Plants ◽  
Reference Data ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Sources Of Information ◽  
Environmental Characteristics ◽  
Ash And Slag Waste ◽  
Slag Waste

В статье сформирована последовательность выполнения действий по определению экологических характеристик функционирования объектов энергетики. Приведены показатели энергообъектов и справочные данные, необходимые для получения промежуточных показателей этапов исследований. Дано описание расчетных моделей определения массы выбросов в атмосферу загрязняющих веществ и парниковых газов и массы образующихся золошлаковых отходов. Модели разработаны на основе утвержденных методик для тепловых электростанций, котельных и дизельных электростанций. Показано, что технологии расчетов экологических характеристик для каждой категории энергообъектов зависят от вида сжигаемого топлива и типа используемого оборудования. Выполнена систематизация информации для моделей определения экологических характеристик функционирования энергетических объектов. Вся необходимая информация представлена в виде трех крупных блоков: характеристика населенных пунктов; показатели энергообъектов; справочные данные по видам топлива, энергетическому и улавливающему оборудованию. Приведено подробное описание показателей каждого блока информации. Показана зависимость перечня определяемых экологических характеристик энергообъектов от вида сжигаемого топлива. Обозначены источники информации и доступность получения показателей каждого блока. The article forms a sequence of actions to determine the environmental characteristics of the functioning of energy facilities. The indicators of energy facilities and reference data required to obtain intermediate indicators of research stages are presented. A description of the models for determining the mass of emissions of pollutants and greenhouse gases into the atmosphere and the mass of ash and slag waste are described. The models are developed on the basis of approved methodologies for thermal power plants, boiler houses and diesel power plants. It is shown that technologies for calculating environmental characteristics for each category of energy facilities depend on the type of fuel burned and the type of equipment used. The systematization of information for models to determining the environmental characteristics of the functioning of energy facilities has been carried out. All the necessary information is presented in the form of three large blocks: characteristics of settlements; indicators of energy facilities; reference data on types of fuel, energy and capture equipment. A detailed description of the indicators of each block of information is given. The dependence of the list of determined environmental characteristics of energy facilities on the type of burned fuel is shown. The sources of information and the availability of obtaining indicators for each block are indicated.

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