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首先从两个方面详细介绍了燃料加湿燃烧的研究成果,一方面是加湿对燃气轮机燃烧室内燃烧特性的影响,另一方面是加湿对燃料着火特性、可燃极限的影响。分析了目前加湿燃烧研究所取得的结论,空气加湿燃烧可以降低火焰燃烧温度、改变燃烧过程中的化学反应以及传热传质过程,影响火焰的流场和结构,使火焰趋于不稳定。同时燃烧区温度的降低有利于降低NOx排放,对HAT、IGCC等热力循环中降低NOx排放有重要意义,最后指出了目前加湿燃烧存在的不足,并结合本课题组的研究结论为后续研究方向提出了建议。
First of all, the research results of fuel humidification and combustion are introduced in detail in two aspects. The first is the influence of humidification on the combustion characteristics in the combustion chamber of the gas turbine and the other is the influence of humidification on the ignition characteristics and flammability limit of the fuel. Analyzed the current conclusion of humidification and combustion research, air humidification combustion can reduce the flame combustion temperature, change the chemical reaction in the combustion process and heat and mass transfer process, affect the flame flow field and structure, the flame tends to be unstable. At the same time, reducing the temperature in the combustion zone is beneficial to reducing the NOx emission, which is of great significance to reduce the NOx emission in the heat cycle such as HAT and IGCC. Finally, the existing problems of humidification and combustion are pointed out and the research conclusions of this research group are put forward for future research Suggestion