Data for characterizing devolatilized wood pellets for fluidized bed applications

This dataset was used to characterize devolatilized wood pellets for fluidized bed applications. The results and the details about the methodology are presented in "Jarolin, K.; Wang, S.; Dymala, T.; Song, T.; Heinrich, S.; Shen, L.; Dosta, M. (2021): Characterizing devolatilized wood pellets for fluidized bed applications. In: Biomass Conversion and Biorefinery." In this work, three types of wood pellets, called Type A (white sawdust pellet from spruce wood), Type B (brown sawdust pellet from foliage and coniferous wood), and Type C (brown sawdust pellet from mixed, unspecified wood types) were characterized after devolatilization. Three different methods for devolatilization were applied: 1. Muffle Furnace (MF) at 900°C 2. Fluidized Bed Reactor (FBR) at 900°C 3. empty fluidized bed reactor with high gas flow rate (HFR) at 900°C 4. empty fluidized bed reactor with low gas flow rate (LFR) at 900°C The raw data from the three main methods for characterization are provided in this repository: 1. compressionTest: Formatted force-displacement measurements of quasi-steady, uniaxial compression tests in the radial direction. The data was used to study breakage behavior. 2. impactTest: Mass loss of the pellets due to impact on a steel plate at different velocities. The mass loss is given after 10 consecutive impacts. In case of breakage, the masses of the fragments are given. The data was used to study resistance to impact and the continuous wear of the pellets. 3. uCT: Micro-computed tomography images from the same pellets before and after devolatilization as well as images of devolatilized pellet for reference. One of the pellets' end-faces was ground into an angle to allow the identification of the orientation. The data was used to study the change in the porosity of the pellets. Please refer to the linked publication for further details.本数据集用于表征流化床应用中的脱挥发分木质颗粒。相关研究结果与方法细节已发表于论文：Jarolin, K.; Wang, S.; Dymala, T.; Song, T.; Heinrich, S.; Shen, L.; Dosta, M. (2021): Characterizing devolatilized wood pellets for fluidized bed applications. In: Biomass Conversion and Biorefinery。 本研究针对三类木质颗粒开展脱挥发分后的表征工作，分别为A型（云杉白锯末颗粒）、B型（源自枝叶与针叶木的棕锯末颗粒）及C型（源自未指定混合木材的棕锯末颗粒）。 本次实验采用四种脱挥发分处理方案： 1. 马弗炉（Muffle Furnace, MF），900℃； 2. 流化床反应器（Fluidized Bed Reactor, FBR），900℃； 3. 高气流速率空流化床反应器（High Gas Flow Rate, HFR），900℃； 4. 低气流速率空流化床反应器（Low Gas Flow Rate, LFR），900℃。 本仓库提供了三类核心表征方法的原始实验数据： 1. 压缩试验（compressionTest）：径向准稳态单轴压缩试验的力-位移格式化测量数据，用于探究颗粒的破碎行为。 2. 冲击试验（impactTest）：不同冲击速度下木质颗粒撞击钢板后的质量损失数据，结果为连续10次冲击后的质量损失；若颗粒发生破碎，则一并给出各破碎碎片的质量。该数据用于研究颗粒的抗冲击性能与持续磨损特性。 3. 显微计算机断层扫描（Micro-computed Tomography, uCT）：同一颗粒在脱挥发分前后的显微CT图像，以及脱挥发分颗粒的参考图像。实验中对其中一颗颗粒的端面进行倒角处理，以确定其成像取向。该数据用于分析颗粒孔隙率的变化情况。 如需获取更多细节，请参阅已关联的发表论文。