An innovative method for waste heat recovery from flue gas treatment system through an additional economizer

Archives of Thermodynamics

article

Iliya Krastev Iliev¹  Tomasz Kowalczyk²  Hristo Kvanov Beloev¹  Angel Kostadinov Terziev³  Krzysztof Jan Jesionek⁴  Janusz Badur² 

[1] University of Ruse, Department of Thermotechnics, Hydraulics and Environmental Engineering;Energy Conversion Department, Institute of Fluid Flow Machinery, Polish Academy of Sciences;Technical University of Sofia, Department of Power Engineering and Power Machines;Witelon Collegium State University, Faculty of Technical and Economic Science

关键词: Waste heat recovery;    Flue gases;    Feasibility study;    Battery emulsifier second generation;    Bag filters;   

DOI  :  10.24425/ather.2022.141977

学科分类：能源（综合）

来源: Polska Akademia Nauk * Oddzial w Gdansku, Instytut Maszyn Przeplywowych / Polish Academy of Sciences, Institute of Fluid-Flow Machinery

【 摘 要 】

The usage of wet methods for flue gas dedusting from coalfired boilers is associated with significant heat losses and water resources. Widespread emulsifiers of the first and second generation are satisfactory in terms of flue gas cleaning efficiency (up to 99.5%), but at the same time do not create conditions for deeper waste heat recovery, leading to lowering the temperature of gases. Therefore, in the paper, an innovative modernization, including installing an additional economizer in front of the scrubber (emulsifier) is proposed, as part of the flue gas passes through a parallel bag filter. At the outlet of the emulsifier and the bag filter, the gases are mixed in a suitable ratio, whereby the gas mixture entering the stack does not create conditions for condensation processes in the stack.

【 授权许可】

Unknown