红外技术, 2011, 33 (8): 473, 网络出版: 2011-12-08
基于 OP-FTIR法监测城市交通排放 CO、CO2、N2O和 CH4气体
Monitoring of Transport Gases CO\CO2\N2O and CH4 Emissions in Urban Area by OP-FTIR
摘要
介绍了在傅里叶变换红外光谱( FTIR)技术基础上发展起来的一种监测气体的新方法 ——开放光程傅里叶变换红外光谱(OP-FTIR)法和基于非线性最小二乘法反演气体浓度的算法。利用 OP-FTIR系统对广州交通排放 CO、CO2、N2O和 CH4气体进行了连续监测,并对实验结果进行了分析。实验表明:广州交通排放 CO、CO2、N2O和 CH4气体浓度与交通流量密切相关,并具有明显的日变化周期特征。整个监测期间,CO2和 CO、CH4具有较高的相关性。
Abstract
Method of monitoring gases, OP-FTIR, is presented in detail. It is developed on the basis of FTIR. The retrieval algorithm of the concentrations of gases based on nonlinear least squares is proposed. An OP-FTIR system is presented, the concentrations of transport greenhouse gases N2O,CO2, CH4 and CO were measured continuously with this system in Guangzhou. The results show that the concentrations of Guangzhou traffic CO\CO2\N2O and CH4 gases are closely related to traffic, and the diurnal cycle features is clear, The results also show that the correlations between concentrations of CO2 and CO are similar, and the correlations between CO2 and CH4 are also similar.
李相贤, 高闽光, 徐亮, 童晶晶, 魏秀丽, 程巳阳, 冯明春. 基于 OP-FTIR法监测城市交通排放 CO、CO2、N2O和 CH4气体[J]. 红外技术, 2011, 33(8): 473. LI Xiang-xian, GAO Min-guang, XU Liang, TONG Jing-jing, WEI Xiu-li, CHENG Si-yang, FENG Ming-chun. Monitoring of Transport Gases CO\CO2\N2O and CH4 Emissions in Urban Area by OP-FTIR[J]. Infrared Technology, 2011, 33(8): 473.