激光与光电子学进展, 2019, 56 (10): 100901, 网络出版: 2019-07-04   

基于高速数字全息的燃烧生物质颗粒测试 下载: 1237次

Measurement of Burning Biomass Particles via High-Speed Digital Holography
作者单位
浙江大学能源清洁利用国家重点实验室, 浙江 杭州 310027
摘要
搭建了基于高速数字全息的燃烧颗粒测试系统。通过对全息图进行处理,观察了竹粉颗粒形貌变化和颗粒破碎等现象;验证了对颗粒三维轨迹追踪的可行性;比较了燃烧前后颗粒粒径分布和速度分布。重建结果展示了各种不同形貌竹粉颗粒的清晰图像。统计结果表明,燃烧后的小颗粒(粒径小于30 μm)数量增多,大颗粒(粒径大于50 μm)数量减少;径向速度分布范围变大;轴向速度整体增大,并出现双峰分布,与观察结果吻合较好。
Abstract
In this study, a high-speed digital holographic system is established for measuring the amount of burning particles. After processing the hologram, the evolution of the morphology and the fragmentation of bamboo powder are observed. Further, the ability of the system to track the three-dimensional trajectories of particles is validated. The size and speed distributions of the particles before and after combustion are compared, and the reconstruction results display high-quality images of bamboo powders having various morphologies. The statistical results denote that the number of small particles (diameter<30 μm) increases, whereas that of the big particles (diameter>50 μm) decreases after combustion. Subsequently, the distribution range of the radial speed of the particles is extended, and the axial speed denotes an overall increase with a bimodal distribution. The statistical results are observed to agree very well with the direct observations.

姚龙超, 吴学成, 林小丹, 吴迎春, 陈玲红, 高翔, 岑可法. 基于高速数字全息的燃烧生物质颗粒测试[J]. 激光与光电子学进展, 2019, 56(10): 100901. Longchao Yao, Xuecheng Wu, Xiaodan Lin, Yingchun Wu, Linghong Chen, Xiang Gao, Kefa Cen. Measurement of Burning Biomass Particles via High-Speed Digital Holography[J]. Laser & Optoelectronics Progress, 2019, 56(10): 100901.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!