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Numerical and experimental methods in development of the novel biomass combustion system concept for wood and agro pellets

机译：新型生物量燃烧系统概念开发木材和农业颗粒的数值和实验方法

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This paper presents the research on improving combustion of wood and agro pellets in domestic hot water boilers. The novel biomass combustion system concept consisting of rotary burner and two types of combustion intensifiers is proposed, with the aim to allow simple application in the most of existing boilers, as well as to improve the efficiency and emissions to extent the related requirements of the relevant EU standards are met. In this regard, inclusion of the combustion intensifier based on honey-comb structure into conventional combustion system is numerically and experimentally investigated and the most appropriate placement in a furnace found. The results show that, with such implementation of the combustion intensifier, significant reductions in unburned pollutant emissions (CO 40% in case of wood pellets and 30% in case of agro pellets), particulate matter emissions (28-56 mg/m(n)(3) at 10% of O-2 in dry flue gases) and improvements in combustion efficiency (2.6-3.7%) can be obtained. A detailed numerical analysis of the subsequent combustion process within the combustion intensifier lead to the novel combustion intensifier design, aimed at lowering manufacturing cost. Preliminary numerical and experimental results indicate similar or slightly less reduction in unburned pollutants of novel design. (C) 2021 Elsevier Ltd. All rights reserved.
机译：本文介绍了在国内热水锅炉中改善木材和农业颗粒燃烧的研究。提出了一种由旋转燃烧器和两种类型的燃烧增强器组成的新型生物量燃烧系统概念，目的是在现有现有锅炉中的大量应用，以及提高相关要求的效率和排放。相关要求欧盟标准满足。在这方面，将燃烧增强剂基于蜂蜜梳结构进入常规燃烧系统，在数值上和实验研究，并在发现炉中最合适的放置。结果表明，随着燃烧增强剂的这种实施，未燃烧的污染物排放（CO＆GT; 40％，在木质颗粒的情况下，颗粒颗粒的30％）的显着减少），颗粒物质排放（28-56毫克） / m（n）（3）在干烟气中10％的O-2），可以获得燃烧效率的改善（＆ 2.6-3.7％）。燃烧增强器内的后续燃烧过程的详细数值分析导致新型燃烧增强器设计，旨在降低制造成本。初步数值和实验结果表明，未燃烧的新颖设计污染物相似或略微降低。 （c）2021 elestvier有限公司保留所有权利。

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