Experimental study of leaked hydrogen gas in two connected chambers under natural ventilation
A theoretical model is used to predict the hydrogen-air buoyancy jet generated by the slow leakage of hydrogen in two connected chambers with natural ventilation.The results show that when hydrogen leaks from one of the two connecting cham-bers,the relative position of the connecting port and the vent out-side the leakage area has a greater impact on the hydrogen distri-bution.Increasing the distance between the central communica-tion opening and the vents outside the leakage area,as well as in-creasing the vent area,can reduce density in the space and in-crease the location of high concentrations.The layering height and the change in leakage source height are positively correlated.The dispersion mechanism of hydrogen in naturally ventilated con-nected spaces is predicted in this study.From the perspective of hydrogen risk control,the locations where high concentrations oc-cur are determined,and theoretical support for the safe operation of hydrogen storage equipment is better provided.
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