基于低分辨率红外光谱分析的燃烧气相组分温度测量  

Temperature Measurement of Gas Phase Component in Flames Based on the Analysis of Low-resolution Infrared Spectroscopy

作　　者：李兆宇 张仲侬 郜宁 曲欣 娄春[3] LI Zhaoyu;ZHANG Zhongnong;GAO Ning;QU Xin;LOU Chun(Xinjiang Xinneng Group Co.,Ltd.Urumqi Electric Power Construction Commissioning Institute,Urumqi,Xinjiang 830000,China;Electric Power Research Institute of Xinjiang Power Grid Co.,Ltd.,Urumqi,Xinjiang 830000,China;State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China)

机构地区：[1]新疆新能集团有限责任公司乌鲁木齐电力建设调试所,新疆乌鲁木齐830000 [2]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830000 [3]华中科技大学煤燃烧国家重点实验室,湖北武汉430074

出　　处：《广东电力》2022年第7期64-71,共8页Guangdong Electric Power

基　　金：国家自然科学基金项目(51827808);新疆新能集团有限责任公司乌鲁木齐电力建设调试所科技项目(SGTYHT/21-JS-223)。

摘　　要：温度、气体体积分数是燃烧检测中的重要参数,由于气体的辐射特性较为复杂,实现温度和体积分数的准确测量需要很高的光谱采集分辨率。为降低检测成本并保证气体体积分数及温度测量的有效性,提出一种基于粒子群优化算法和低分辨率红外光谱分析的燃烧气氛温度及组分体积分数的测量方法。对测量结果进行模拟反演计算,结果表明采用粒子群优化算法反演计算得到的H_(2)O体积分数误差小于5%,气体温度误差小于3%,说明所提方法测量精度较高。采用近红外光谱检测技术,开展乙烯扩散火焰中气体温度以及H_(2)O体积分数的测量实验,并将不同工况下得到的结果与已有研究中燃烧数值模拟的气体温度、图像法测量的碳烟温度进行对比,实验结果表明红外光谱法测量的气体温度与后二者的相对偏差均小于4%,验证了所提方法用于气体温度测量的可靠性。Temperature and volume fraction of gas are important parameters for combustion detection.Due to the complex radiation characteristics of gas,high-resolution infrared spectroscopy acquisition is required for accurate measurement of gas temperature and volume fraction.Therefore,in order to reduce the detection cost and ensure the validity of volume fraction and temperature measurement of the gas,this paper proposes a measurement method based on the particle swarm optimization algorithm(PSO)and low-resolution infrared spectroscopy to detect temperatures and volume fractions of components in combustion process.Furthermore,the accuracy of the measurement results is verified by the simulation inversion calculation.The calculation results show that the error of the volume fraction of H_(2)O calculated by PSO algorithm inversion is less than 5%,and the error of the gas temperature is less than 3%,which proves high precision of the proposed method.Meanwhile,the measurement experiment of gas-phase temperature and volume fraction of H_(2)O in ethylene diffusion flame is carried out based on the near-infrared spectroscopy detection technology.The results are compared with the gas-phase temperature by combustion numerical simulation and the soot temperature measured by image method in previous studies.The experimental results show that the relative deviations between the gas-phase temperature measured by the combustion numerical simulation and the soot temperature measured by the image method with the gas-phase temperature measured by the infrared spectroscopy method proposed are less than 4%,which further verifies the reliability of this method for gas-phase temperature measurement.

关 键 词：燃烧火焰 气体温度 红外光谱分析 气体辐射 粒子群优化算法 

分 类 号：TM621.2[电气工程—电力系统及自动化] TK311[动力工程及工程热物理—热能工程] TK314