Experimental study on evaporation characteristics of a hydrogen peroxide droplet at elevated temperature

7th International Conference on Environment and Industrial Innovation

生态环境科学;工业技术

Won, Jonghan^1 ; Kang, Hongjae^1 ; Baek, Seungwook^1 ; Kwon, Sejin^1

Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon

34141, Korea, Republic of^1

关键词: Droplet sizes;    Elevated temperature;    Evaporation process;    Evaporation rate;    High speed ccd cameras;    High temperature;    Normal gravities;    Single droplet;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/67/1/012037/pdf
DOI  :  10.1088/1755-1315/67/1/012037

来源: IOP

【 摘 要 】

In this study, evaporation characteristics of a hydrogen peroxide droplet, 90% purity, was experimentally investigated at elevated temperature (between 400 and 800 °C) and atmospheric pressure under normal gravity. Elevated temperature atmosphere was provided by electric furnace inside the chamber. The range of a droplet size was 1.1 mm to 1.3 mm. The evaporation process of a droplet was recorded by high speed CCD camera. As analysing the image extracted from the camera using the program, evaporation rate of a single droplet was calculated at each ambient temperature. After thermal expansion period, evaporation rate of a hydrogen peroxide droplet followed d2-law but thermal expansion period didn't clearly separate at 400 °C. The evaporation rate increased with increase in ambient temperature. Also thermal decomposition of hydrogen peroxide increased at high temperature.