THE MECHANISM OF SMOULDERING IN CIGARETTES
THE MECHANISM OF SMOULDERING IN CIGARETTES
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DOI：
10.1016/0010-2180(63)90156-1
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发表时间：
1963-01-01
影响因子：
4.4
通讯作者：
WEINBERG, FJ
中科院分区：
文献类型：
--
作者：
EGERTON, A;GUGAN, K;WEINBERG, FJ
本文研究了卷烟阴燃的物理机理，阐明了温度、消耗率等因素对卷烟阴燃的影响，香烟结构和吸烟参数。通过特殊方法获得的信息包括：通过辐射高温计获得的外围表面温度;通过微小夹杂物熔化的X射线摄影获得的不同时间的内部温度轮廓;通过纹影摄影获得的热气外部分布;以及各种吸烟条件下的消费模式。考虑到一维理论和绝热模拟物的阴燃，使用石墨颗粒，产生了香烟的工作模型。一些结论是：所有“可用”的烟雾都来自最外面的环形空间，其中包含总体积的一半到三分之一;那里的颗粒温度超过900°C，表面温度达到1200 °C。内筒--占总半径的四分之三--主要通过自然对流阴燃，这与吸烟者有关，只是因为它起着先导的作用，并保持阴燃区的形状和气体通过它的通道。
The physical mechanism o f cigarette smouldering has been studied with a view to elucidating the dependence of temperatures, consumption rates, etc., upon cigarette structure and smoking parameters. Information obtained by special methods includes: peripheral surface temperatures by tine radiation-pyrometry; internal temperature contours, at various times, by tine x-ray photography of the melting of minute inclusions; external distribution of hot gases by schlieren photography; and consumption patterns for a variety of smoking conditions. Considerations o f unidimensional theory and o f the smouldering o f an adiabatic analogue, using graphite particles, yielded a working model for cigarettes. Some conclusions are: that all ‘available’ smoke derives from the outermost annulus containing one half to one third of the total volume; particle temperatures there exceed 900°C and surface temperatures reach 1 200°C. The inner cylinder-three quarters of the total radius-smoulders chiefly by natural convection, which is relevant to the smoker only in that it acts as pilot and maintains the shape of the smouldering zone and the passage of gases through it.