An improved two-colour pyrometer based method for measuring dynamic temperature mapping of hydrogen-air combustion. (6th October 2021)

• Record Type: Journal Article
• Authors: Cheng, Yang-Fan; Yao, Yu-Le; Wang, Zhong-Hua; Zhang, Bei-Bei; Xia, Yu; Liu, Rong; Shu, Chi-Min
• Is Part Of: International journal of hydrogen energy. Volume 46:Number 69(2021)
• Page Start: 34463
• Page End: 34468
• Publication Date: 2021-10-06
• Subjects: Hydrogen -- Temperature measurement -- Two-colour pyrometer -- Gas combustion -- Thermocouple; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2021.07.224
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: To solve the problem of measuring the combustion temperature of hydrogen gas, an improved two-colour pyrometer with suspended tungsten powder was developed and calibrated by a tungsten halogen lamp. The characteristic temperature parameters of the premixed 30% H2 /70% air flame, including temperature distribution, proportion, maximum value, minimum value, and average value, could be measured and calculated using the improved two-colour pyrometer method and a python code. The temperature measuring results of H2 -air mixture obtained by this technique were compared with that of thermocouples and previous studies. The results verified its feasibility to measure the flame temperature structure of H2 combustion. Future work concerning the influential factors of the improved two-colour pyrometer was also mentioned. Graphical abstract: Image 1 Highlights: An improved two-colour pyrometer for measuring H2 flame temperature was developed. Tungsten powder was chosen as the auxiliary grey-body for the two-colour pyrometer. Dynamic temperature mapping of H2 combustion was performed with the technique. Temperature characteristic parameters of H2 -air flame were calculated and presented.