二元活性剂对氨高温自着火特性影响分析
Analysis of the Influence of Binary Activators on the High-temperature Self-ignition Characteristics of Ammonia
在全球碳中和的背景下,氨作为可再生无碳燃料受到广泛关注。文章利用激波管实验平台测量了氨、氨/氢、氨/氢/二甲醚三种燃料在当量比为1.0,压力为0.14 MPa、1.0 MPa下的高温着火延迟期,并构建了适用于高温点火的氨/氢/二甲醚动力学模型。实验结果表明,氨/氢/二甲醚三元混合燃料相比于氨/氢二元混合燃料在相同条件下有着更短的着火延迟期,其在1.0 MPA时,含5%H2+5%DME活性剂的混合燃料相比与 0.14 MPa时的纯氨,IDT缩短了近…查看全部>>
In the context of global carbon neutrality,ammonia has received widespread attention as a renewable and carbon-free fuel.The study utilized a shock tube experimental platform to measure the high-temperature ignition delay time of ammonia,ammonia/hydrogen,and ammonia/hydrogen/dimethyl ether(DME)fuels at an equivalence ratio of 1.0 and pressures of 0.14 MPa and 1.0 MPa.Additionally,a kinetic model suitable for high-temperature ignition of ammonia/hydrogen/DME …查看全部>>
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