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通过使用双射流丙烷和甲醇，对燃烧室中使用进气圆形射流和椭圆形射流进行比较。

Comparison between using inlet circular jet and elliptic jet in combustion chamber by using twin jet flow propane and methanol.

作者信息

Yaseen Mohamed M S, Attia Ahmed A, El-Dosouky M W, Hegazy Maher Gamil, Elsemary Ismail M M

机构信息

Mechanical Engineering Department, Higher Technological Institute, Tenth of Ramadan City, Al-Sharqia, Egypt.

Combustion and Energy Technology Lab Mechanical Engineering Department, Faculty of Engineering at Shoubra, Benha University, Banha, Egypt.

出版信息

Sci Rep. 2024 Apr 5;14(1):7993. doi: 10.1038/s41598-024-58000-2.

DOI:10.1038/s41598-024-58000-2
PMID:38580708
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10997666/
Abstract

The current work aimed to improve the combustion behavior of a non-premixed twin-jet inlet. The effect of fuel and air inlet shape under different velocities was studied using ANSYS as the process takes place in species transport and finite rate/eddy dissipation, and the flow is considered to be turbulent. Two different shapes (circular-circular and circular-elliptic inlet jets) were investigated, and the results show that the behavior and intensity of the fire are affected by variations in the speed and, geometry of the inlet which affects temperature, heat release rate, combustion efficiency, and equivalent ratios. The optimum air/fuel velocities were found to be 2.5/1.5 with circular-circular inlet jets.

摘要

当前的工作旨在改善非预混双射流进气口的燃烧性能。利用ANSYS研究了不同速度下燃料和空气进气口形状的影响，因为该过程发生在组分输运和有限速率/涡耗散中，且流动被视为湍流。研究了两种不同的形状（圆形-圆形和圆形-椭圆形进气射流），结果表明，火焰的行为和强度受进气速度和几何形状变化的影响，而进气速度和几何形状又会影响温度、热释放率、燃烧效率和当量比。发现对于圆形-圆形进气射流，最佳空气/燃料速度为2.5/1.5。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0f1c/10997666/7220b17ce52f/41598_2024_58000_Fig14_HTML.jpg
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