基于声学层析成像的生物质堆垛温度分布测量研究
结题报告
批准号:
61973115
项目类别:
面上项目
资助金额:
58.0 万元
负责人:
胡永辉
依托单位:
学科分类:
自动化检测技术与装置
结题年份:
2023
批准年份:
2019
项目状态:
已结题
项目参与者:
胡永辉
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中文摘要
生物质燃料的自热与自燃是影响生物质电厂运行的重要安全问题,为了获得及时可靠的火灾预警信息,必须对生物质堆垛温度分布进行在线监测。然而,现有的各种接触式及非接触式温度测量仪表存在着测温点数量有限、难以进行堆垛内部温度测量的缺陷,无法有效识别内部高温区域。本项目旨在研究基于声学层析成像的生物质堆垛温度分布在线测量技术,采用声波收发器阵列与层析成像算法,实现堆垛内部温度场的高精度和高分辨率重建。本项目通过理论建模与实验测试研究生物质堆垛内声波传播特性并建立温度测量模型,提出测量模型参数标定方法、时延估计算法、声波收发器优化布局方案以及三维温度场重建方法,并在实验室与工业现场的多种工况下对测量系统进行测试和完善,最终形成系统的生物质堆垛温度声学测量理论、方法和技术。拟开展的理论与实验研究将推动火灾监测预警理论与技术的发展,促进对生物质自热与自燃机理的研究,助力我国生物质能源的大规模安全利用。
英文摘要
The self-heating and spontaneous combustion of biomass fuels are an important issue related to the safe operation of biomass-fired power plants. In order to acquire timely and reliable predictive information on fire, it is necessary to measure the temperature distribution of biomass stockpiles on an online basis. However, existing contact and non-contact instruments for temperature measurement can only provide point measurements of limited number or surface measurements, and thus are incompetent for recognition of internal hot spots. The objective of this proposal is to develop an acoustic tomography technique for online measurement of temperature distribution of biomass stockpiles. Acoustic transceiver arrays and computed tomography algorithms will be employed to reconstruct the temperature field of biomass stockpiles with high accuracy and high spatial resolution. Theoretical modelling and experimental tests will be performed to study the propagation characteristics of sound waves within the stockpile, based on which measurement models of biomass temperature will be established. Methods for parameter calibration of the measurement model, estimation of the time delay, arrangement of acoustic transceivers and three-dimensional reconstruction of the temperature field will also be proposed. Finally, testing and improvement of the measurement system will be carried out under various conditions in the laboratory and the industrial field. Systematic theories, methods and techniques for acoustic temperature measurement of biomass stockpiles will be formulated by the end of the project. The theoretical and experimental studies to be carried out will promote the development of theories and techniques for fire prevention, advance the research on self-heating and spontaneous combustion of biomass, and ultimately help China utilize biomass fuels more safely and on a larger scale.
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DOI:--
发表时间:2022
期刊:IEEE Transactions on Instrumentation and Measurement
影响因子:--
作者:Lifeng Zhang;Li Dai
通讯作者:Li Dai
DOI:--
发表时间:2023
期刊:图学学报
影响因子:--
作者:张立峰;李晶
通讯作者:李晶
DOI:--
发表时间:2021
期刊:IEEE Sensors Journal
影响因子:--
作者:Lifeng Zhang;Li Dai
通讯作者:Li Dai
DOI:10.1109/jsen.2023.3288910
发表时间:2023-08
期刊:IEEE Sensors Journal
影响因子:4.3
作者:Dongchen Lu;Lifeng Zhang
通讯作者:Dongchen Lu;Lifeng Zhang
DOI:10.1109/tim.2023.3325524
发表时间:2023
期刊:IEEE Transactions on Instrumentation and Measurement
影响因子:5.6
作者:Ge Guo;Yong Yan;Wenbiao Zhang;Yonghui Hu;Guimei Fu
通讯作者:Ge Guo;Yong Yan;Wenbiao Zhang;Yonghui Hu;Guimei Fu
基于声发射检测的气送煤粉粒度分布在线测量技术研究
  • 批准号:
    61573140
  • 项目类别:
    面上项目
  • 资助金额:
    66.0万元
  • 批准年份:
    2015
  • 负责人:
    胡永辉
  • 依托单位:
柔性关节机器鱼的神经-身体-流场耦合自适应高效游动控制研究
  • 批准号:
    61105108
  • 项目类别:
    青年科学基金项目
  • 资助金额:
    24.0万元
  • 批准年份:
    2011
  • 负责人:
    胡永辉
  • 依托单位:
国内基金
海外基金