摘要
利用层流炉可以测定闪速加热条件下(升温速率104K/s以上)生物质的热挥发特性。生物质热挥发特性的研究对于获得生物质快速热解液化机理、实现液化装置设计的科学化有重要意义。层流炉内部气流的温度场的测量与控制,是精确控制生物质快速热挥发实验条件的一个关键因素。通过对层流炉内部温度场的测量和理论分析,得到了影响层流炉内部气流温度的关键因素,在此基础上重新设计了层流炉内部气流温度的控制模式,得到了理想的均匀温度场。
The pulverized biomass devolatilization characteristics at flash heating rate(more than 104 K/s) could be conducted in a laminar furnace. These studies are very important for the knowledge of biomass flash pyrolysis mechanism and for the design of biomass flash pyrolysis equipments effectively. The temperature measurement and control in the laminar furnace is the key factor for maintaining experiment conditions of biomass devolatilization. Theoretic studies of temperature profile in laminar furnace showed that the laminar furnace tube surface heat flux is the main factor for temperature field. After adjusting the control method, the uniform temperature profile was obtained in testing area.
出处
《可再生能源》
CAS
北大核心
2004年第3期15-17,共3页
Renewable Energy Resources
基金
国家"十五"863计划资助项目(2001AA514030
2003AA514030)
国家自然科学基金资助项目(50376031)
关键词
层流炉
温度测量
控制
laminar furnace
temperature measurement
control method
