| 热辐射下木材热解与着火特性实验 |
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| 引用本文： | 沈德魁,方梦祥,李社锋,骆仲泱,岑可法.热辐射下木材热解与着火特性实验[J].燃烧科学与技术,2007,13(4):365-369. |
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| 作者姓名： | 沈德魁 方梦祥 李社锋 骆仲泱 岑可法 |
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| 作者单位： | 浙江大学能源清洁利用国家重点实验室,杭州,310027;浙江大学能源清洁利用国家重点实验室,杭州,310027;浙江大学能源清洁利用国家重点实验室,杭州,310027;浙江大学能源清洁利用国家重点实验室,杭州,310027;浙江大学能源清洁利用国家重点实验室,杭州,310027 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 对几种木材在不同辐射热流下的热解与着火特性进行了研究,且研究了含水率对木材热解与着火过程的影响.分析热解与着火过程中木材试样不同深度的温度变化与失重变化,对木材的着火时间与着火温度进行记录,并着重分析水分对木材温度分布、着火时间与着火温度的影响.通过间接的方法从实验的着火数据中获得了木材的临界着火热流值约为25 kW/m2.
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| 关 键 词： | 热解 着火 辐射热流 含水率 表面温度 着火时间 临界着火热流 |
| 文章编号： | 1006-8740（2007）04-0365-05 |
| 收稿时间： | 2007-03-22 |
| 修稿时间： | 2007-03-22 |
Experimental of Thermal Degradation and Ignition of Wood by Thermal Radiation |
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| SHEN De-kui,FANG Meng-xiang,LI She-feng,LUO Zhong-yang,CEN Ke-fa.Experimental of Thermal Degradation and Ignition of Wood by Thermal Radiation[J].Journal of Combustion Science and Technology,2007,13(4):365-369. |
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| Authors: | SHEN De-kui FANG Meng-xiang LI She-feng LUO Zhong-yang CEN Ke-fa |
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| Affiliation: | State Key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | A set of experiments were firstly conducted on pyrolysis and ignition of wood of several species under different heat flux,species and as well as on the effect of moisture content under normal conditions.Temperature profiles,mass loss rate,ignition time,ignition temperature and critical heat flux were all examined in the experiments.Effect of water evaporation inside the wood on temperature distribution and solid convertion was further discussed.Finally,the critical heat flux,another key ignition characteristics, was obtained from experimental data,which was 25 kW/m2 for wood under normal conditions regardless of the species. |
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| Keywords: | thermal degradation ignition heat flux moisture content surface temperature ignition time critical heat flux |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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