Possibilities of steam boiler process optimization in the TPP Ugljevik

IF 1.1 4区工程技术 Q4 THERMODYNAMICS

Thermal Science Pub Date : 2023-01-01 DOI:10.2298/tsci2301133s

Goran Stupar, D. Tucaković, Ognjen Stamenković, Luka Petrovic, Borivoje Vujicic, Zarko Novakovic, Željko Milanović

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引用次数: 0

Abstract

The paper presents a technical solution for modernization with the aim of increasing the efficiency of the steam boiler of TPP Ugljevik, which implies the reorganization of the combustion system. More efficient operation of the furnace can be achieved by replacing the existing burners, reducing the number of burner levels as well as the organization of tangential combustion. The flame formed in the shape of a tube around the two central combustion vortices provides a larger amount of heat transferred to the combustion furnace, less fouling of its screen walls and thus a lower average temperature of the combustion products at its outlet. As the chosen reorganization affects the increase of the temperature of the superheated steam and the decrease of the temperature of the reheated steam, it has been proposed to reduce the area of the semi-irradiated superheater and increase the area of the second reheater. Taking into consideration that the reorganization of the combustion system may lead to the change of the thermal load of the evaporator located in the furnace, the paper presents the work of the steam boiler operation under new operating conditions. Used calculation system enables reliable prediction of operating characteristics of the steam boiler in new operating conditions of combustion, and its application helps assess the quality of the boiler in terms of how effective, efficient, safe and environmentally friendly its operating mode is. In this way, it is possible to form a comprehensive description of the operating mode of the steam boiler.

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TPP中蒸汽锅炉工艺优化的可能性

本文提出了一种以提高TPP ugjevik蒸汽锅炉效率为目标的现代化技术方案，即对燃烧系统进行改造。通过更换现有的燃烧器，减少燃烧器水平的数量以及切向燃烧的组织，可以实现炉子更有效的运行。在两个中心燃烧旋涡周围形成管状火焰，为燃烧炉提供了更大的热量传递，其筛壁结垢较少，因此其出口燃烧产物的平均温度较低。由于所选择的重整方式会影响过热蒸汽温度的升高和再热蒸汽温度的降低，因此建议减小半辐照过热器的面积，增加第二再热器的面积。考虑到燃烧系统的重组可能导致炉膛蒸发器热负荷的变化，本文介绍了蒸汽锅炉在新工况下的运行工作。所使用的计算系统可以可靠地预测蒸汽锅炉在新的燃烧工况下的运行特性，其应用有助于评估锅炉运行方式的有效性、高效性、安全性和环保性。这样就有可能对蒸汽锅炉的运行方式形成一个全面的描述。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermal Science 工程技术-热力学

CiteScore

2.70

自引率

29.40%

发文量

399

审稿时长

5 months

期刊介绍： The main aims of Thermal Science to publish papers giving results of the fundamental and applied research in different, but closely connected fields: fluid mechanics (mainly turbulent flows), heat transfer, mass transfer, combustion and chemical processes in single, and specifically in multi-phase and multi-component flows in high-temperature chemically reacting flows processes present in thermal engineering, energy generating or consuming equipment, process and chemical engineering equipment and devices, ecological engineering, The important characteristic of the journal is the orientation to the fundamental results of the investigations of different physical and chemical processes, always jointly present in real conditions, and their mutual influence. To publish papers written by experts from different fields: mechanical engineering, chemical engineering, fluid dynamics, thermodynamics and related fields. To inform international scientific community about the recent, and most prominent fundamental results achieved in the South-East European region, and particularly in Serbia, and - vice versa - to inform the scientific community from South-East European Region about recent fundamental and applied scientific achievements in developed countries, serving as a basis for technology development. To achieve international standards of the published papers, by the engagement of experts from different countries in the International Advisory board.