Selected Aspects of Combustion Optimization of Coal in Power Plants

Maciej Dzikuć,Rafał Dudziak,Karolina Godzisz,Piotr Kuryło,Maria Dzikuć,Szymon Szufa

doi:10.3390/en13092208

Maciej Dzikuć, Rafał Dudziak + Show 4 more

Open Access

https://doi.org/10.3390/en13092208

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Abstract

Growing ecological standards force the implementation of solutions that will contribute to reducing greenhouse gas (GHG) emissions to the atmosphere. This is particularly important in Poland, whose energy system is almost 80% based on coal. In the interest of low carbon development it is worth considering the optimization of existing old coal-based power plants. The main goal of the research was to present the benefits of modernization of existing boiler equipment and to analyze the combustion process of various types of coal sorts that have a significant impact on the optimization of the production processes of energy media. An analysis of the processes occurring in boiler devices during the combustion of fuel was carried out, which had a significant impact on the quality of generated heat and electricity. The conducted research defined technological solutions for boiler structures that have a significant impact on improving the efficiency of the technological process in heating plants and the characteristics of coal as energy fuel. Practical technical and modernization solutions have been proposed that contribute to the optimization of coal combustion processes, resulting in increased energy efficiency of the heating plant.

Highlights

In the heating industry, a boiler device is referred to as a whole set of devices that are used to convert chemical energy contained in solid fuel, which is coal, into thermal energy in the form of water or steam, which is used for technological processes when driving steam turbines or hot water supply [1,2].Interpreting the phrase steam boiler, we define a boiler device in which the process of changing the liquid, which is water, in the so-called saturated steam
This is important in Poland, whose energy system is almost 80% based on coal [19]
The main goal of the research was to present the benefits of modernization of existing boiler equipment and to analyze the combustion process of various types of coal sorts that have a significant impact on the optimization of the production processes of energy media [20]

Summary

Introduction

A boiler device is referred to as a whole set of devices that are used to convert chemical energy contained in solid fuel, which is coal, into thermal energy in the form of water or steam, which is used for technological processes when driving steam turbines or hot water supply [1,2]. Before undertaking any works related to the modernization of the power line, it is absolutely necessary to analyze the technical condition of the main components of the system and its auxiliary devices It should be determined what coal sorts are planned to be burned and whether the devices cooperating with the boiler, such as: feeding and circulating water pumps, coal container, primary and secondary forced-draught fans have a surplus of processing capacity, because properly carried out modernization and optimization is associated with an increased water, air and fuel flow as well as limitation of chimney loss, which significantly affects the efficiency of the power plant [31,43,44,45]

Modernization of the Boiler Device to Reduce Heat Loss through the Chimney

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