Study on Influence Factors of Hydrogen Combustion Flame Color and Redesign of Demonstration Scheme
YE Yong-Qian1**, YE Yi-Qin2, YE Yan-Zhu3, YAN Ye-An4
1. Chemical Education Research Institute, Fujian Institute of Education,Fuzhou 350025;China; 2. High School Affiliated to Fujian Normal University,Fuzhou 350007,China; 3. Science Research Institute, Fujian Institute of Education, Fuzhou 350025, China; 4. Fujian Sanming No.1 Middle School, Sanming 365000, China
Abstract Based on the different explanations of the flame color of hydrogen combustion, this paper makes an empirical study on the design scheme of three influencing factors, namely flame reaction, flame temperature and gas flow rate. It is concluded that the main factors affecting the flame color of hydrogen are air flow speed, flame temperature and flame reaction of drugs. By using the characteristics of the spherical drying tube to control both the air velocity and the flame temperature, a demonstrative device is designed, which can observe the hydrogen combustion flame is obviously blue. The discussion about the color of hydrogen combustion flame in the textbook is verified by the available instruments and drugs, the executable experimental scheme, the reproducible experimental phenomena and the verifiable experimental results, which breaks through the limitation that the color of hydrogen combustion is not easy to observe in the actual operation.
YE Yong-Qian, YE Yi-Qin, YE Yan-Zhu, YAN Ye-An. Study on Influence Factors of Hydrogen Combustion Flame Color and Redesign of Demonstration Scheme[J]. Chinese Journal of Chemical Education, 2023, 44(3): 100-103.
