SHEN Yuliang,ZHAO Xuhui,ZHANG Hao,et al.Research on Methodologies for Testing and Quality Assessment of Greenhouse Gas Observing Systems[J].Journal of Chengdu University of Information Technology,2026,41(02):253-259.[doi:10.16836/j.cnki.jcuit.2026.02.017]
温室气体观测系统测试与质量评估方法研究
- Title:
- Research on Methodologies for Testing and Quality Assessment of Greenhouse Gas Observing Systems
- 文章编号:
- 2096-1618(2026)02-0253-07
- Keywords:
- greenhouse gases; testing; operational quality; air tightness; retention time; analyzing mainframes
- 分类号:
- X84
- 文献标志码:
- A
- 摘要:
- 随着全球气候变化问题的日益严峻,温室气体在线观测系统作为监测和评估温室气体排放的重要手段,其测试方法的准确性和运行质量的稳定性尤为重要。根据观测系统的组成结构和测量原理,深入探讨观测系统气密性、保留时间、分析主机性能等方面的测试方法,以及从数据质量、系统稳定性、平均故障修复时间等多个维度构建完整的评估指标体系。案例分析结果表明,观测系统测试方法能够全面、系统地评估温室气体在线观测系统气密性、保留时间、分析主机性能等多个关键指标,气密性测试中所有管路及接口均无漏气现象,减压阀压力数值稳定不变,分析主机进/出气口连接紧密性检查时浓度无异常升高,观测系统气密性测试合格,满足系统运行要求; 进气口至分析主机保留时间为3.06 min,未满足低于2 min要求,应按要求进行整改; 标气至分析主机保留时间为0.92 min,校正后的目标标气CO2和CH4浓度值与标称浓度的差值分别为0.15 ppm和0.4 ppb,均达到规定的指标要求; 温室气体在线观测系统的CO2和CH4数据获取率均达到99.72%,数据正确率均为97.47%,均显著高于规定的最低标准; 观测系统的稳定运行率为100%,平均故障修复时间为0 h,观测系统能可靠稳定运行。分析主机性能测试结果均满足测试指标要求,分析主机性能可靠。通过测试和运行质量分析,验证了测试方法的有效性和评估方法的科学性,为温室气体在线观测系统的优化和改进提供科学依据,为全球气候变化监测和评估提供更加可靠的数据支持。
- Abstract:
- With the increasingly serious problem of global climate change, the accuracy of the test methods and the stability of the operation quality of the on-line greenhouse gas observation system are particularly important, as an important means of monitoring and evaluating greenhouse gas emissions. This paper firstly briefly introduces the composition structure and measurement principle of the observing system, discusses in depth the testing methods of the observing system in terms of gas tightness, retention time, analyzing host performance, etc., as well as constructs a complete evaluation index system in terms of multiple dimensions, such as data quality, system stability, and average fault repair time. The results of the case study show that the test method of the observation system can comprehensively and systematically evaluate the air tightness, retention time, analyzer host performance, and other key indexes of the online greenhouse gas observation system. All pipelines and interfaces in the air tightness test have no air leakage, the pressure value of the pressure-reducing valve is stable and unchanged, and the concentration of the analyzer does not increase abnormally during the inspection of the tightness of the connection between the analyzer air inlet/outlet. The air tightness test of the observation system is satisfactory, meeting the requirements of system operation; the retention time from the air inlet to the main body of the analyzer is 3.06 min, which does not meet the requirement of less than 2 min and should be rectified according to the requirements; the retention time from the standard gas to the main body of the analyzer is 0.92 min, and the difference between the corrected target standard gasCO2 and CH4 concentration and the nominal concentration is 0.15 ppm and 0.4 ppb, which meets the specified target requirements. The CO2 and CH4 data acquisition rate of the on-line greenhouse gas observation system reached 99.72%, and the data correctness rate was97.47%, which were significantly higher than the minimum standard; the stable operation rate of the observation system was 100%, and the average fault repair time was 0 hour, so the observation system was able to operate reliably and stably. The performance test results of the analyzer mainframe all meet the requirements of the test indicators, and the analyzer mainframe has reliable performance. Through the test and operation quality analysis, the validity of the test method and the scientific validity of the assessment method have been verified, providing a scientific basis for the optimization and improvement of the GHG online observation system, and providing more reliable data support for the monitoring and assessment of global climate change.
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备注/Memo
收稿日期:2024-06-24
基金项目:安徽省气象局创新发展专项资助项目(CXM202204)资助。
通信作者:张昊.E-mail:1063448934@qq.com