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N₂/CO₂稀释比对/混合物的爆炸特性的影响

Chengxu You¹, Songping Yang¹, Chengcai Wei²

¹Chongqing Vocational Institute of Safety Technology, No. 583 Anqing Rd, Chongqing 404121, P. R. China.

|March 10, 2025

概括

本研究研究了 (N2) 和二氧化碳 (CO2) 如何降低/ (H2/C3H8) 燃料混合物的爆炸风险. 二氧化碳通过抑制关键的激进反应,有效降低爆炸压力,火焰温度和热释放率.

科学领域:

燃烧科学和化学工程.
能源安全和风险管理.
能能源的应用.

背景情况:

混合燃料,如/ (H2/C3H8),越来越多地使用,引发了人们对爆炸危险的担忧.
有效的惰性化策略对于减轻这些燃料混合物的爆炸风险至关重要.
了解惰性气体对燃烧特性的影响对于安全至关重要.

研究的目的:

研究 (N2) 和二氧化碳 (CO2) 对H2/C3H8气体混合物的惰性作用.
分析N2和CO2的不同稀释比如何影响爆炸参数和反应动力学.
为提高能应用中的安全提供理论见解.

主要方法:

使用CHEMKIN-Pro软件模拟爆炸和惰性性能.
分析关键参数:增压爆炸压力,火焰温度,激素度和热释放率.
对基本反应进行敏感性分析,以确定关键路径.

主要成果:

增加的二氧化碳稀释线性地降低了增压爆炸压力和火焰温度.
较高的二氧化碳比率降低了热释放率和产生H,O和OH基的速度,特别是H.
二氧化碳通过CH + CO2 = HCO + CO等反应抑制关键中间体,降低总体释放的热量.

结论:

二氧化碳通过改变反应路径和减少激素形成,对H2/C3H8燃烧产生显著的抑制作用.
2和二氧化碳作为有效的惰性剂,而二氧化碳对抑制爆炸特征的影响更为明显.
这些发现为开发安全协议和推进使用混合物的清洁能源技术提供了理论基础.

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