Exploring the fuel structure dependence of laminar burning velocity: A machine learning based group contribution approach

2021 ◽  
Vol 232 ◽  
pp. 111525
Author(s):  
Florian vom Lehn ◽  
Liming Cai ◽  
Bruno Copa Cáceres ◽  
Heinz Pitsch
2014 ◽  
Vol 39 (17) ◽  
pp. 9534-9544 ◽  
Author(s):  
Yong He ◽  
Zhihua Wang ◽  
Wubin Weng ◽  
Yanqun Zhu ◽  
Junhu Zhou ◽  
...  

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 996
Author(s):  
Venera Giurcan ◽  
Codina Movileanu ◽  
Adina Magdalena Musuc ◽  
Maria Mitu

Currently, the use of fossil fuels is very high and existing nature reserves are rapidly depleted. Therefore, researchers are turning their attention to find renewable fuels that have a low impact on the environment, to replace these fossil fuels. Biogas is a low-cost alternative, sustainable, renewable fuel existing worldwide. It can be produced by decomposition of vegetation or waste products of human and animal biological activity. This process is performed by microorganisms (such as methanogens and sulfate-reducing bacteria) by anaerobic digestion. Biogas can serve as a basis for heat and electricity production used for domestic heating and cooking. It can be also used to feed internal combustion engines, gas turbines, fuel cells, or cogeneration systems. In this paper, a comprehensive literature study regarding the laminar burning velocity of biogas-containing mixtures is presented. This study aims to characterize the use of biogas as IC (internal combustion) engine fuel, and to develop efficient safety recommendations and to predict and reduce the risk of fires and accidental explosions caused by biogas.


Fuel ◽  
2019 ◽  
Vol 239 ◽  
pp. 1028-1037 ◽  
Author(s):  
Xinlu Han ◽  
Zhihua Wang ◽  
Shixing Wang ◽  
Ronald Whiddon ◽  
Yong He ◽  
...  

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3147 ◽  
Author(s):  
Wu Xu ◽  
Yong Jiang

The effect of NaCl as an extinguishing agent on metal dust fires require further exploration. This paper reports the results of an experimental study on the performance of micron-sized NaCl powders on hybrid aluminum–methane–air flames. NaCl particles with sub-10 μm sizes were newly fabricated via a simple solution/anti-solvent method. The combustion characteristics of aluminum combustion in a methane-air flame were investigated prior to the particle inhibition study to verify the critical aluminum concentration that enables conical aluminum-powder flame formation. To study the inhibition effectiveness, the laminar burning velocity was measured for the established aluminum–methane–air flames with the added NaCl using a modified nozzle burner over a range of dust concentrations. The results were also compared to flames with quartz sand and SiC particles. It is shown that the inhibition performance of NaCl considerably outperformed the sand and SiC particles by more rapidly decreasing the burning velocity. The improved performance can be attributed to contributions from both dilution and thermal effects. In addition, the dynamic behavior of the NaCl particles in the laminar aluminum–methane–air flame was investigated based on experimental observations. The experimental data provided quantified the capabilities of NaCl for metal fire suppression on a fundamental level.


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