氨燃烧及反应机理研究进展

Progress in Ammonia Combustion and Reaction Mechanism

现今的一系列环境和能源问题迫使人类急需寻找清洁的燃料以替代传统的化石燃料。氨作为一种富氢的无碳燃料,具有能量密度高、成本低、储运安全等优势,近年来受到了越来越多学者的关注,成为了一个研究热点。本文介绍了氨燃料的物化特性及燃烧特性,分析了氨与各种燃料混合燃烧在燃烧速度、火焰结构、污染物形成等方面的表现以及在发动机的应用情况,详述了氨燃烧机理及动力学模型的研究现状,指出有待进一步研究的问题并展望了氨燃烧研究的发展方向。

A series of environmental and energy issues today has forced humans to find clean alternative fuels to replace traditional fossil fuels.As a carbon-free fuel,ammonia has the advantages of high energy density,low cost and high safety.In recent years,it has attracted more and more scholars’attention and become a research hotspot.This review introduces the physicochemical properties and combustion characteristics of ammonia fuel.The combustion characteristics of ammonia/various fuels are also discussed in detail,such as burning speed,flame structure,pollutant formation,etc.The application of ammonia in engines and the combustion mechanism are summarized.The problems to be further studied are pointed out and the development direction of the ammonia combustion research is prospected.