Turzyński Tomasz, Kluska Jacek, Ochnio Mateusz, Kardaś Dariusz
Institute of Fluid Flow Machinery, Fiszera 14, 80-231 Gdansk, Poland.
Materials (Basel). 2021 May 11;14(10):2484. doi: 10.3390/ma14102484.
This paper describes characteristics of the combustion of sunflower husk (SH), sunflower husk pellets (SHP), and, for comparison, hardwood pellets (HP). The experiments were carried out using a laboratory-scale combustion reactor. A proximate analysis showed that the material may constitute an alternative fuel, with a relatively high heating value (HHV) of 18 MJ/kg. For SHP, both the maximum combustion temperatures (T = 1110 °C) and the kinetic parameters (temperature front velocity v = 7.9 mm/min, combustion front velocity v = 8 mm/min, mass loss rate v = 14.7 g/min) of the process were very similar to those obtained for good-quality hardwood pellets (T = 1090 °C, v = 5.4 mm/min, v = 5.2 mm/min, v = 13.2 g/min) and generally very different form SH (T = 840 °C, v = 20.7 mm/min, v = 19 mm/min, v = 13.1 g/min). The analysis of ash from SH and SHP combustion showed that it has good physicochemical properties (ash melting point temperatures >1500 °C) and is safe for the environment. Furthermore, the research showed that the pelletization of SH transformed a difficult fuel into a high-quality substitute for hardwood pellets, giving a similar fuel consumption density (F = 0.083 kg/s·m for SHP and 0.077 kg/s·m for HP) and power output density (P = MW/m for SHP and 1.5 MW/m for HP).
本文描述了向日葵壳（SH）、向日葵壳颗粒（SHP）的燃烧特性，并与硬木颗粒（HP）进行对比。实验在实验室规模的燃烧反应器中进行。近似分析表明，该材料可构成一种替代燃料，其较高的高热值（HHV）为18兆焦/千克。对于SHP，该过程的最高燃烧温度（T = 1110°C）和动力学参数（温度前沿速度v = 7.9毫米/分钟、燃烧前沿速度v = 8毫米/分钟、质量损失率v = 14.7克/分钟）与优质硬木颗粒的相应参数（T = 1090°C、v = 5.4毫米/分钟、v = 5.2毫米/分钟、v = 13.2克/分钟）非常相似，且总体上与SH的参数（T = 840°C、v = 20.7毫米/分钟、v = 19毫米/分钟、v = 13.1克/分钟）差异很大。对SH和SHP燃烧产生的灰分分析表明，其具有良好的物理化学性质（灰熔点温度>1500°C）且对环境安全。此外，研究表明，SH的制粒将一种难处理的燃料转化为硬木颗粒的优质替代品，二者具有相似的燃料消耗密度（SHP为0.083千克/秒·米，HP为0.077千克/秒·米）和功率输出密度（SHP为兆瓦/米，HP为1.5兆瓦/米）。
