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<p>The objective of this study was to investigate the properties of experimental wood pellets manufactured from varying mixture ratios of mahogany (<i>Swietenia macrophylla</i> King), Taiwania (<i>Taiwania cryptomerioides</i> Hayata), and thorny bamboo (<i>Bambusa stenostachya</i> Hackel). The moisture content, mechanical durability, bulk density, calorific value, energy density, ash content, volatile matter content, fixed carbon content, and thermal decomposition behavior of seven types of pellets with different material ratios were determined using thermogravimetric analysis (TGA)/derivative thermogravimetric analysis (DTG) to increase their overall fuel performance from a resource-sustainability perspective. Bamboo-predominant pellets exhibited superior mechanical strength because of their favorable fiber structure but were limited by high ash and volatile contents, resulting in lower energy conversion efficiency. In contrast, the highest calorific value (20.58&#xa0;MJ/kg), energy density (13.42&#xa0;GJ/m<sup>3</sup>), and thermal stability were observed for pellets with relatively high Taiwania contents because of their increased lignin content. The results of Pearson’s correlation analysis revealed significant relationships between raw material proportions and pellet properties. The results of this study suggest that the precise optimization of material ratios can improve pellet fuel quality, reduce the dependence on single species, and support circular bioresource utilization in line with low-carbon energy goals.</p>

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Properties of pellets prepared from bamboo–wood combinations at different mixture ratios

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月31日

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  • Chen-hui Chen,
  • Shyh-Chian Tang,
  • Way Long,
  • Jeng-Wei Tsai,
  • Tung-Lin Wu

摘要

The objective of this study was to investigate the properties of experimental wood pellets manufactured from varying mixture ratios of mahogany (Swietenia macrophylla King), Taiwania (Taiwania cryptomerioides Hayata), and thorny bamboo (Bambusa stenostachya Hackel). The moisture content, mechanical durability, bulk density, calorific value, energy density, ash content, volatile matter content, fixed carbon content, and thermal decomposition behavior of seven types of pellets with different material ratios were determined using thermogravimetric analysis (TGA)/derivative thermogravimetric analysis (DTG) to increase their overall fuel performance from a resource-sustainability perspective. Bamboo-predominant pellets exhibited superior mechanical strength because of their favorable fiber structure but were limited by high ash and volatile contents, resulting in lower energy conversion efficiency. In contrast, the highest calorific value (20.58 MJ/kg), energy density (13.42 GJ/m3), and thermal stability were observed for pellets with relatively high Taiwania contents because of their increased lignin content. The results of Pearson’s correlation analysis revealed significant relationships between raw material proportions and pellet properties. The results of this study suggest that the precise optimization of material ratios can improve pellet fuel quality, reduce the dependence on single species, and support circular bioresource utilization in line with low-carbon energy goals.