碳基燃料燃烧的温室气体在线监测实验  

Online monitoring experiment of greenhouse-gas emissions from carbon-based fuel combustion

作　　者：张锦萍[1] 陈昊煊 刘银河[1] ZHANG Jinping;CHEN Haoxuan;LIU Yinhe(School of Energy and Power Engineering,Xi an Jiaotong University,Xi an 710049,China)

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《实验室科学》2024年第1期45-48,53,共5页Laboratory Science

基　　金：陕西省重点研发计划项目(项目编号:2021GXLH-Z-088)。

摘　　要：为加深学生对“双碳”理念和碳基燃料清洁高效利用技术的理解,设计了半焦及烟煤两种燃料燃烧的温室气体在线监测实验。模拟燃煤锅炉工况,搭建燃烧反应系统,采用便携式傅里叶红外气体分析仪研究碳基燃料燃烧的温室气体释放特征。结果表明,CH_(4)与CO_(2)、N_(2)O的起始和终止释放时间不同,单位质量半焦和烟煤释放出的CO_(2)量均远高于CH_(4)和N_(2)O的释放量;燃烧温度升高,CO_(2)释放量均先升高后降低,CH_(4)和N_(2)O的释放量逐渐降低;1000℃以上燃烧时,半焦释放的CO_(2)较多,CH_(4)较少,两种燃料的N_(2)O释放量都接近0。该综合实验中,教师以学科前沿知识为基奠,引导学生自主实践,旨在于培养学生分析解决问题的能力,提升学生的工程实践综合素质。To enhance students understanding of the“double carbon”concept and the clean-efficient utilization technology of coal resource,an online monitoring experiment of greenhouse-gas emissions from semi-coke and bituminous coal was designed.A combustion reaction system was established by simulating the coal-fired boiler condition,and the greenhouse gas emission characteristics of carbon-based fuel combustion was evaluated by using portable Fourier infrared gas analyzer.The results indicated that the initial and final release time of CH_(4)is different from that of CO_(2)and N_(2)OThe CO_(2)emission by per unit mass of semi-coke or bituminous coal is much higher than that of CH_(4)and N_(2)OWith the increase of combustion temperature,the CO_(2)emission first increased and then decreased,while the emissions of CH_(4)and N 2 O gradually decreased.When the temperature is above 1000℃,the semi-coke releases more CO_(2)and less CH_(4),and the N 2 O emission of both fuels are close to zero.Through this comprehensive experiment,teachers take the frontier knowledge of the discipline as the foundation to guide students independent practical learning,which aims to cultivate their ability to analyze and solve problems and improve their comprehensive quality of engineering practice.

关 键 词：碳基燃料 燃烧 温室气体 在线监测 综合实验 

分 类 号：TK16[动力工程及工程热物理—热能工程]