Experimental investigation of the flame stability limits for H2 + C3H8, H2 + C2H6 and H2 + CH4 jet flames

Autor: Yajue Wu, Mahar Diana Hamid, Zine labidine Messaoudani, Che Rosmani Che Hassan
Rok vydání: 2021
Předmět:
Zdroj: Brazilian Journal of Chemical Engineering. 39:487-510
ISSN: 1678-4383
0104-6632
Popis: Experimental work was conducted to investigate the flame stability limits of H2 + C3H8, H2 + C2H6 and H2 + CH4 jet flames by using a single jet diffusion burner with a nozzle diameter of 2 mm. The results of 400 experimental tests showed that the increment of hydrogen composition increases the stability limits of the hydrogen-hydrocarbon jet flames. Furthermore, the results also showed that H2 + C3H8 jet flames could be effectively lifted or blown out at a lower jet exit velocity than H2 + C2H6 and H2 + CH4 jet flames at similar H2 concentrations. In addition, it was observed that the H2 + CH4 jet flame exhibits the highest blowout velocity. It was also found that the stability limit of hydrogen-hydrocarbon jet flames starts to increase rapidly at hydrogen volumetric composition of 90% for H2 + C3H8, 85% for H2 + C2H6 and 70% for H2 + CH4.
Databáze: OpenAIRE
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