Design and Application of a Color Tube for Hydrogen Fuel Flame Cooling
YE Yong-Qian1**, YE Yi-Qin1, YE Yan-Zhu2, YAN Ye-An3
1. Qiaoguang High School, Nanan 362314, China;
2. Chemical Education Research Institute, Fujian Institute of Education, Fuzhou 350025, China;
3. Fujian Sanming No.1 Middle School, Sanming 365000, China
Abstract In order to reduce the ambient temperature and oxygen concentration, an instrument was designed to observe the effect of ambient temperature change on the flame color of hydrogen fuel. It was found that the flame color of hydrogen containing fuel was generally yellow, and it turned to very light blue (under bright conditions) after reducing the ambient temperature. It was proved that the excited state of water molecules in the combustion process was the important reason for the change of flame color from blue to yellow. The flame color reaction of sodium element was not the only reason for the yellow flame of alcohol lamp. Four kinds of visible spectral lines of hydrogen atom spectrum were observed by accident during the temperature reduction test of flame color of butane spray gun, which provided a reference direction for the future search of this spectral line. The research process can be used as the research material based on the real situation. Through the discovery of problems, the improvement of instruments and the summary of laws, the ability of students to solve real problems by using chemical knowledge can be improved, and the core literacy of students can be cultivated.
YE Yong-Qian, YE Yi-Qin, YE Yan-Zhu, YAN Ye-An. Design and Application of a Color Tube for Hydrogen Fuel Flame Cooling[J]. Chinese Journal of Chemical Education, 2021, 42(3): 86-91.
