Journal of Shanghai Jiao Tong University

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2025 , Vol. 59 >Issue 5: 637 - 647

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.256

Mechanical Engineering

Experimental Study on Stable Combustion of Air Atomized Diesel in Porous Media

  • LIU Hongsheng ,
  • LIANG Xiaoyan ,
  • XU Yichen ,
  • XIE Maozhao
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  • 1. School of Energy and Power, Dalian University of Technology, Dalian 116024, Liaoning, China
    2. Liaoning Academy of Materials, Shenyang 110623, China

Received date: 2023-06-19

  Revised date: 2023-08-12

  Accepted date: 2023-08-17

  Online published: 2023-08-28

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Abstract

A porous media liquid combustion system based on air atomization fuel supply mode is developed to explore the combustion characteristics of liquid fuel in porous media. Long-term self-sustaining combustion and flame localization of diesel spray are successfully achieved by electric preheating ignition. The flame characteristics and temperature field of diesel spray combustion in spherical bed porous and medium are experimentally studied, and the effects of air flow and fuel injection on temperature distribution are discussed. The experimental results indicate that the electric preheating system has a good stability and repeatability, and the minimum preheating temperature required to maintain stable combustion is 719.2 ℃. Different flame forms are observed in the ignition stage and the stable combustion stage. The burner has a good temperature response performance, and the optimum equivalent ratio to achieve stable combustion of air atomized diesel oil should be between 0.63 and 0.84.

Key words： liquid fuel; air atomization mode; porous media; steady combustion

Cite this article

LIU Hongsheng , LIANG Xiaoyan , XU Yichen , XIE Maozhao . Experimental Study on Stable Combustion of Air Atomized Diesel in Porous Media[J]. Journal of Shanghai Jiaotong University, 2025 , 59(5) : 637 -647 . DOI: 10.16183/j.cnki.jsjtu.2023.256

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