Flame Propagation Mechanisms in Hybrid-Mixture Explosions

混合混合物爆炸中的火焰传播机制

• 批准号: RGPIN-2017-05156
• 负责人: Pegg, Michael
• 金额: $ 1.6万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638426
• 关键词: Flame; Propagation; Mechanisms; Hybrid; Mixture

Hybrid mixtures, i.e. mixtures of flammable gas and combustible dust, often occur in chemical and processing operations like paint manufacturing, pharmaceutical industries, coal mines, and grain elevators. Research into dust- and gas-air explosions has been extensive so they are well understood, but hybrid-mixture explosions have not been as extensively investigated so data on them is rather scarce. They pose a significant hazard because their combined Lower Explosion Limit (LEL) has been shown to lie below that of the single components.

混合混合物，即可燃气体和可燃粉尘的混合物，经常出现在化学和加工操作中，如油漆制造、制药工业、煤矿和谷物升降机。对粉尘爆炸和气体-空气爆炸的研究已经很广泛，因此对它们有很好的了解，但混合混合物爆炸尚未得到广泛的研究，因此有关它们的数据相当稀少。它们构成重大危险，因为它们的组合爆炸下限（LEL）已被证明低于单个组件的爆炸下限。