关于煤灰爆炸性能和工程应用前景的初步研究
1China University of Mining and Technology (Beijing), Beijing, 100083, China. yizeown@163.com.
Scientific reports
|January 4, 2025
概括
这项研究表明,脉冲引爆发动机 (PDE) 中增加煤炭质量流量可以提高引爆压力和燃烧效率. 炭石煤显示了最高的压力,推进了更清洁的煤炭利用.
科学领域:
- 工程 工程师 工程师 工程师
- 能源科学 能源科学
- 燃烧科学 燃烧科学
背景情况:
- 脉冲引爆发动机 (PDE) 提供了高效能源转换的潜力.
- 深煤液化爆炸技术需要了解煤炭的燃烧特性.
研究的目的:
- 为了评估煤炭类型的效率和PDEs中的能量释放.
- 为了更清洁的利用,推进深层煤的流体化爆炸.
主要方法:
- 使用定制PDE设置与四种煤炭类型进行实验.
- 煤的质量流量从30g/s到120g/s不等.
- 使用高频压力传感器和数值模拟.
主要成果:
- 最大爆炸压力 (Pmax) 与煤的质量流量线性增加.
- 在120g/s的速度下,炭石达到1.52 MPa.
- 爆炸燃烧效率 (ηDCE) 随着质量流量而提高,在泥炭中达到83.7%.
结论:
- 建立了Pmax,煤炭质量流和最大温度 (Tmax) 之间的线性关系.
- 通过增加质量流量,证明了爆炸燃烧效率的提高.
- 为推进深层煤炭液化爆炸技术提供了基础数据.
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