煤火裂隙区CO_2排放通量观测装置的开发与应用  

Development and application of a device for CO_2 emission flux observation in coal spontaneous combustion zone

作　　者：刘生根[1] 吴日峰[1] 李润奎[1] 胡正义[1] 宋现锋[1] 

机构地区：[1]中国科学院大学资源与环境学院,北京100049

出　　处：《环境污染与防治》2014年第2期32-36,42,共6页Environmental Pollution & Control

基　　金：中国科学院战略性先导科技专项课题(No.XDA05030200)

摘　　要：煤田自燃中的CO2排放是碳排放的重要组成部分。对煤火区CO2排放的观测研究有助于准确估算煤炭烧失量和温室气体排放量。以空气动力学理论为基础,开发了针对CO2排放监测的环境数据实时采集系统,用于采集CO2浓度以及不同高度的气温和风速等环境参数,最终估算CO2排放通量。所研制的系统在内蒙古典型煤火裂隙区现场进行了实验观测。结果表明,在煤火裂隙区CO2排放通量观测研究中,根据通量估算模型开发的低成本移动式在线观测装置具有同时采集多种环境参数的特性,工作稳定,结果合理,弥补了目前观测方法和设备中的不足,具有一定的实用价值。Emission of CO2 from coal spontaneous combustion is an important component of total carbon emis- sions. Observation of these CO2 emissions facilitates the estimation of coal loss and greenhouse gas emission. Based on the aerodynamic theory for estimating gas fluxes, an observing system was developed to measure the required envi- ronmental parameters, such as gas density, air temperature and wind speed at different heights. A preliminary field observation experiment was conducted in a representative fissure zone in Inner Mongolia. The results demonstrated that the developed observation system can collect many environmental parameters at the same time, it is also movable and cheapcost, performs stable and convenient for field observation.

关 键 词：煤火裂隙区 CO2排放通量 观测装置 空气动力学 

分 类 号：X701[环境科学与工程—环境工程]