The effect of hydrogen addition on methane-air flame in a stratified swirl burner

Design of hydrogen energy storage frequency modulation method based on primary frequency modulation of power grid

“…Compared with other energy storage methods, hydrogen energy storage has the following four obvious advantages: 1 in the new energy absorption, the advantages of hydrogen storage over other types of energy storage in terms of discharge time (hours to quarters) and capacity scale (100GW) are obvious,in terms of economies of scale of energy storage, as storage time increases [5][6][7][8] , as the marginal value of energy storage systems decreases, the total affordable cost will also decrease, with the cost of large-scale hydrogen storage being an order of magnitude lower than that of electricity storage, hydrogen storage can be carried out by means of long-tube trailers, pipeline transmission, natural gas mixing with hydrogen [9][10][11][12][13][14][15] , ultra-high voltage transmission-hydrogen production at the receiving end and liquid ammonia, etc. , compared with large-scale energy storage technologies such as pumped storage and Compressed air storage, hydrogen storage does not require specific geographical conditions and does not destroy the ecological environment as depicted is table 1.…”

Impact of H2/CH4 blends on the flexibility of micromix burners applied to industrial combustion systems

“…Extensive studies exist on the flexibility of NG/H 2 blends in different types of burners and applications, focused on thermal NO x , CO and CO 2 emissions, flame stability (premixed and partially-premixed systems) and air to gas ratio control systems [28,29,30,31]. In particular, Fuel-flexibility of micromix gas turbine burners at high air-fuel equivalence ratios (represented by λ) with λ >2 was studied by N.Beckmann [32] focusing on the burner geometry optimisation to keep the main micromix combustion characteristics and low emission levels along with high combustion efficiency for the widest possible range of H 2 /CH 4 blends.…”

Measurement of laminar burning speed of mixture of methane, hydrogen, and air

“…A mixture of hydrogen and methane is a colorless and odorless gas, it is lighter than air and extremely flammable [28]. The addition of hydrogen in the combustion process of hydrocarbons improves the flame stability [29], widens methane lean flammability limits, boosts the burning speed [30], and reduces pollutant emissions [31]. For these reasons, there is considerable interest in using hydrogen-methane and other hydrogen-hydrocarbon mixtures as an alternative fuel [31].…”