PRINCIPLES OF DETECTION OF FLAMMABLE ATMOSPHERES BY CATALYTIC DEVICES
PRINCIPLES OF DETECTION OF FLAMMABLE ATMOSPHERES BY CATALYTIC DEVICES
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DOI：
10.1016/0010-2180(73)90021-7
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发表时间：
1973-01-01
影响因子：
4.4
通讯作者：
JONES, TA
中科院分区：
文献类型：
--
作者：
FIRTH, JG;JONES, A;JONES, TA
大多数用于测量燃料/空气环境爆炸性的仪器使用催化氧化作为测量方法。详细的机制，这种方法已被检查和方程描述的输出从这些设备已被导出。燃料爆炸下限的输出V（LEL）具有一般形式V（LEL）= KD 12 δH [LEL]，其中D12、ΔH和[LEL]分别为燃料在空气中的扩散系数、氧化热和爆炸下限，K为常数。计算已使爆炸性气体/空气混合物的响应进行预测和修正系数，以获得实际设备。根据燃料的氧化热与爆炸下限之间的经验关系，提出了一种新的爆炸性测定方法。
Most instruments used for measuring the explosibility of fuel/air atmospheres use catalytic oxidation as a method of measurement. The detailed mechanism of this method has been examined and equation describing the output from these devices have been derived. The output V (LEL) at the lower explosive limit of a fuel has the general form V (LEL)= KD 12 δH [LEL], where D 12, ΔH, and [LEL] are respectively the diffusion coefficient, heat of oxidation, and the lower explosive limit of the fuel in air, and K is a constant. Calculations have been made which enable the responses to explosive gas/air mixtures to be predicted and correction factors to be derived for practical devices. A new method for the measurement of explosiveness is discussed based on the empirical correlation between the heat of oxidation of the fuel and its lower explosive limit.