An original nondestructive sampling method to study the effect of gravity on the deposition of micron-sized large particles in exhaust gas recirculation (EGR) cooler fouling
Yao, Yipeng; Han, Zhiqiang; Tian, Weiet al.
2023 • In International Journal of Engine Research
An original nondestructive sampling method to study the effect of gravity on the deposition of micron-sized large particles in exhaust gas recirculation (EGR) cooler fouling.pdf
large particle; fouling; gravity; sampling method; EGR; cooler
Abstract :
[en] Fouling is one of the barriers to developing more efficient and near-zero emission internal combustion engines. The micron-sized particulate matter is one of the roots of this fouling phenomenon in exhaust gas recirculation (EGR) coolers. This fouling is inadequately evaluated quantitatively, and its deposition mechanism is unknown. To investigate the effect of gravity on the deposition of micron-sized particles, an original nondestructive sampling fouling method and experiment apparatus have been developed to effectively obtain the upper and lower bottom fouling in the cooler in the direction of airflow, and the area proportion, count, and diameter of large particles in the fouling using image processing software. It was found that (i) the area proportion of large particles in the lower bottom fouling was almost 2.5 times higher than the upper bottom fouling; (ii) the count of large particles in the lower bottom fouling was higher, and the maximum diameter was larger, up to 639 μm; (iii) the mass of the lower bottom fouling was 1.5 times higher than the upper bottom fouling; (iv) gravity can significantly promote the deposition of micron-sized particles and should be considered in the design and arrangement of the EGR cooler to prevent fouling.
Disciplines :
Materials science & engineering
Author, co-author :
Yao, Yipeng ; Thermodynamics and Mathematical Physics Unit, Faculty of Engineering, University of Mons, Mons, Belgium ; Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu, China ; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China
Han, Zhiqiang ; Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu, China ; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China ; Engineering Research Center of Ministry of Education for Intelligent Air-Ground Fusion Vehicles and Control, Xihua University, Chengdu, China
Tian, Wei; Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu, China ; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China ; Engineering Research Center of Ministry of Education for Intelligent Air-Ground Fusion Vehicles and Control, Xihua University, Chengdu, China
He, Gengyuan; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China
Wu, Yi; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China
Yan, Yan; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China
Xia, Qi; School of Intelligent Manufacturing and Electronic Engineering, Wenzhou University of Technology, Wenzhou, China
Fang, Jia; Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu, China ; Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, Xihua University, Chengdu, China
Duprez, Marie-Eve ; Université de Mons - UMONS > Faculté Polytechniqu > Service de Thermodynamique, Physique mathématiques
De weireld, Guy ; Université de Mons - UMONS > Faculté Polytechniqu > Service de Thermodynamique, Physique mathématiques
Language :
English
Title :
An original nondestructive sampling method to study the effect of gravity on the deposition of micron-sized large particles in exhaust gas recirculation (EGR) cooler fouling
science and technology department of sichuan province national natural science foundation of china national natural science foundation of china national defense science and technology innovation fund of the chinese academy of sciences
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