Structural parameter design of hydrogen gas stove burner

To achieve the dual carbon goal, the decarbonization of gas is an irresistible trend for the development of urban new energy in the future. Hydrogen, as a promising zero-carbon energy, is expected to be widely applied in urban gas in the future. Herein, a combustion experiment system of hydrogen gas stoves was established based on the commonly-used atmospheric burner. Then, a combustion experiment was conducted to study the influence of the variation of structural parameters, including the diameter, spacing and angle of the burner port, and the primary air coefficient on the performance indicators such as NO_x and H₂ concentration in flue gas, the ignition noise and energy efficiency. Thus, the feasibility of a pure hydrogen gas stove was verified, and according to the experimental results, suggestions were put forward for the structural parameter design of the hydrogen gas stove. The study shows that it is not required to significantly change the structure of the conventional natural gas stove, and stable combustion of hydrogen in the gas stove can be realized only if the structural parameters of the burner are designed properly. Besides, the flue gas produced by hydrogen combustion contains fewer harmful components compared with conventional natural gas. Such results could provide reference to the design and promotion of hydrogen gas appliances.