ABSTRACT
To improve the explosion suppression efficiency of porous media in natural gas hydrogen-doped pipelines, this paper designs and builds an experimental platform with dimensions of 10 cm × 10 cm × 100 cm organ transparent glass explosion pipeline and researches the synergistic effect of the use of nickel foam and to inhibit the explosion of hydrogen-doped methane with a hydrogen doping ratio of . Studies have shown that using a dual explosion suppression mechanism, the synergistic effect of nickel foam and acting at different jet positions has a significant inhibitory effect on the flame and overpressure of low-hydrogen-ratio methane explosions. The synergistic in porous media has a more potent inhibitory effect on the right-side wall jet than on the left-side and left-side jet. When the synergistic impact of nickel foam and acts on the right-side wall jet, the flame is quenched, substantially attenuating the overpressure peak. When the nickel foam synergistic acts on the right-side wall jet, the optimal effect is achieved when the jet pressure is set at 0.3 MPa, which successfully quenches the flame and significantly reduces the overpressure peak. However, the dual explosion suppression mechanism fails when the jet pressure is 0.2 MPa.
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No potential conflict of interest was reported by the author(s).
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Notes on contributors
Xianqi Duan
Xianqi Duan Investigation, Methodology, Data curation, Writing - original draft.
Yulong Duan
Yulong Duan Conceptualization, Resources, Funding acquisition, Supervision, Writing - review & editing.
Lulu Zheng
Lulu Zheng: Carried out experiments, Investigation, Data curation, Softwar, Methodology.
Guoqin He
Guoqin He Investigation, Writing - review & editing.
Shilin Lei
Shilin Lei Investigation, Writing - review & editing