Characterization of In-Cylinder Combustion Temperature Based on a Flame-Image Processing Technique

Hanyu Chen, Yaoqi Hou, Xi Wang, Zhixiang Pan and Hongming Xu
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Hanyu Chen: School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Yaoqi Hou: School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Xi Wang: School of Physical Education, Jianghan University, Wuhan 430056, China
Zhixiang Pan: School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Hongming Xu: Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK

Energies, 2019, vol. 12, issue 12, 1-12

Abstract: The analysis of in-cylinder combustion temperatures using flame image processing technology is reliable. This method can accurately, intuitively, and in real time obtain the temperature field distribution law of the combustion flame in the cylinder, so we can more deeply understand the characteristics of the combustion process of internal combustion engines. In this paper, a high-speed charge-coupled device (CCD) camera is used to record an in-cylinder combustion image, which is calculated and corrected according to the principle of three primary color temperature measurement, and the temperature field distribution of the combustion flame in the diesel engine cylinder is analyzed in detail. In addition, the temperature of the typical combustion flame images under the open-cycle and closed cycle conditions is compared by the CMS2002 measurement and MATLAB program, respectively. The results show that the accuracy of the MATLAB program is acceptable in general but not entirely acceptable in a few ways.

Keywords: combustion flame; CCD image; trichromatic method; temperature measurement (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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