Wilczyński Dominik, Talaśka Krzysztof, Wałęsa Krzysztof, Wojtkowiak Dominik, Kryszczyński Kuba, Kołodziej Andrzej, Konecki Karol, Urbaniak Łukasz
Faculty of Mechanical Engineering, Institute of Machine Design, Poznan University of Technology, Piotrowo Str. 3, 61-138 Poznań, Poland.
Department of Mechanical Engineering, Polytechnic Faculty, University of Kalisz, Poznańska 201-205, 62-800 Kalisz, Poland.
Materials (Basel). 2024 Nov 29;17(23):5869. doi: 10.3390/ma17235869.
The paper presents research on the process of densifying rye-wheat straw for its use in producing mouldable biofuel. The straw used in the research is a waste material from a farm located in Wielkopolska, resulting from the cultivation of triticale for the purpose of producing feed for pig farming. The aim of the study is to determine the utilisation of this material for the production of an agglomerate for energy purposes, such as heating the farm's infrastructure. The research was conducted for two moisture levels of straw: = 10% and 30%. Before the experiment, the straw was cut into particles of the desired size: = 10, 20, 30, 40, 50 and 60 mm. The densification process was carried out at temperatures = 25, 50, 100, 150 and 200 °C, subjecting the straw to a compaction pressure of 15 MPa. Based on experimental studies, two values of the densification degree were determined: -the densification degree under load; and -the densification degree after unloading. The densification degree is more relevant from the perspective of storage and transport. ANOVA analysis of the results showed that the most significant factors affecting were particle size S and process temperature T, with higher values obtained for straw moisture of 30%. The ANOVA analysis of the densification degree after unloading () revealed that higher x values were achieved for straw with 10% moisture and the smallest particle size of 10 mm. The most significant factors affecting were particle size and moisture content. Studies of the friction coefficient between the straw and the materials of the densification equipment components indicated that the optimal process temperature is 150 °C. The conducted research and the obtained results determined the optimal input parameters for the process and also provided a solid support for further studies, including investigation of the influence of other factors, such as binders.
本文介绍了关于黑小麦秸秆致密化过程的研究，旨在将其用于生产可成型生物燃料。研究中使用的秸秆是来自大波兰地区一个农场的废料，该农场种植小黑麦用于生产养猪饲料。本研究的目的是确定这种材料用于生产能源用途的团聚体，如为农场基础设施供暖的可行性。研究针对秸秆的两种水分含量进行： = 10% 和 30%。在实验前，将秸秆切成所需尺寸的颗粒： = 10、20、30、40、50 和 60 毫米。致密化过程在温度 = 25、50、100、150 和 200 °C 下进行，对秸秆施加 15 MPa 的压实压力。基于实验研究，确定了两个致密化程度值： - 加载下的致密化程度；以及 - 卸载后的致密化程度。从储存和运输的角度来看，致密化程度 更具相关性。结果的方差分析表明，影响 的最显著因素是颗粒尺寸 S 和工艺温度 T，对于 30% 水分含量的秸秆， 值更高。卸载后致密化程度（）的方差分析表明，对于水分含量为 10% 且颗粒尺寸最小为 10 毫米的秸秆，获得了更高的 x 值。影响 的最显著因素是颗粒尺寸和水分含量。对秸秆与致密化设备部件材料之间摩擦系数的研究表明，最佳工艺温度为 150 °C。所进行的研究和获得的结果确定了该过程的最佳输入参数，也为进一步研究提供了坚实支持，包括研究其他因素（如粘结剂）的影响。
