Experimental research on the infrared gas fire detection system

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Jiang, Yalong^1 ; Liu, Yangyang^1

College of Civil and Environmental Engineering, Anhui Xinhua University, China^1

关键词: CO concentrations;    Combustion products;    Different heights;    Environmental interference;    Experimental research;    Rate of increase;    Smoldering fires;    Wood pyrolysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/3/032042/pdf
DOI  :  10.1088/1755-1315/121/3/032042

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Open fires and smoldering fires were differentiated using five experiments: wood pyrolysis, polyurethane smoldering, wood fire, polyurethane fire and cotton rope smoldering. At the same time, the distribution of CO2and CO concentration in combustion products at different heights was studied. Real fire and environmental interference were distinguished using burning cigarettes and sandalwood. The results showed that open fires and smoldering fires produced significantly different ratios of CO2and CO concentrations. By judging the order of magnitudes of the ratio CO2and CO concentrations in the combustion products, open fire and smoldering fire could be effectively distinguished. At the same time, the comparison experiment showed that the rate of increase of the concentration of CO in the smoldering fire was higher than that under non-fire conditions. With the criterion of the rate of increase of CO concentration, smoldering fire and non-fire could be distinguished.