Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance

Xuegang Zhang; Tianzhi Li; Sirui Jiang; Xuecheng Wu; Ying Zhang; Donghui Ci

doi:10.1093/ce/zkag035

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Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance

更新时间：2026-09-12

- Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance
- Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance
- 清洁能源（英文） 2026年第5期
- 作者机构：
  
  1. State Key Laboratory of Clean Energy Utilization, Zhejiang University
  2. National Institute of Clean-and-Low-Carbon Energy
- 作者简介：
- 基金信息：
  
  This study was supported by the Fundamental Research Funds for the Central Universities, China (2022ZFJH004) and Capacity Building for the National Energy Technology R&D (Experimental) Center on Clean Coal Conversion (2024) (Grant No. GJNY-24-126) (S93002402502).
- DOI：10.1093/ce/zkag035
  中图分类号：
- 纸质出版：2026
- 稿件说明：
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Xuegang Zhang, Tianzhi Li, Sirui Jiang, 等. Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance[J]. 清洁能源（英文）, 2026,(5).

Xuegang Zhang, Tianzhi Li, Sirui Jiang, Xuecheng Wu, Ying Zhang, Donghui Ci, Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance, Clean Energy, Volume 10, Issue 5, October 2026, Pages 156–165, https://doi.org/10.1093/ce/zkag035
Xuegang Zhang, Tianzhi Li, Sirui Jiang, 等. Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance[J]. 清洁能源（英文）, 2026,(5). DOI： 10.1093/ce/zkag035.

Xuegang Zhang, Tianzhi Li, Sirui Jiang, Xuecheng Wu, Ying Zhang, Donghui Ci, Experimental and numerical study on enhanced combustion of low-rank coal: a combined approach of inclined rotation and laser assistance, Clean Energy, Volume 10, Issue 5, October 2026, Pages 156–165, https://doi.org/10.1093/ce/zkag035 DOI：

摘要

Abstract

To address the incomplete combustion of low-rank coal under atmospheric pressure in small-scale systems

this study proposes an enhanced burnout method that combines inclined rotation and laser assistance. By integrating EDEM numerical simulation with experimental investigation

it was identified that incomplete combustion of bottom-layer pulverized coal constitutes the main bottleneck. Results showed that optimizing the rotation initiation timing and inclination angle significantly enhances disturbance and combustion efficiency. Compared to stacked combustion

this method can reduce the unburned rate from 11.44% to 5.95%. Further introduction of laser assistance during the burnout stage lowers the unburned rate to 3.60%. Tests on multiple types of low-rank

difficult-to-burn coal confirm the effectiveness of this method

which achieves a reduction of over 50% in the unburned rate compared to stacked combustion

consistently maintaining it below 6%. This work develops a novel technical approach for advancing miniature measurement devices through optimized pulverized coal combustion.

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