固定点连续监测系统的性能评估:复杂的排放环境中平均时间的影响
David Ball1, Nathan Eichenlaub1, Ali Lashgari1
1Project Canary, Denver, CO 80202, USA.
Sensors (Basel, Switzerland)
|May 14, 2025
概括
先进的持续监测系统 (CMSs) 准确量化甲排放,即使是复杂的重叠来源. 随着时间的推移,汇总数据显著改善了估计,显示CMSs.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 工程 工程师 工程师 工程师
背景情况:
- 由于复杂,动态和重叠的排放事件,从工业设施中量化甲排放具有挑战性.
- 现有的研究经常使用简化测试设置,使用恒定排放率,而不反映现实世界的场景.
研究的目的:
- 评估持续监测系统 (CMS) 在具有时间变化的基线和重叠来源的复杂排放场景中的性能.
- 评估误差指标和平均时间对排放量化准确性的影响.
主要方法:
- 进行了一项新的单盲控制释放研究,使用未公开的甲释放来源和速度.
- 对CMS性能分析的各种平均时间定义和评估了几个错误指标.
主要成果:
- 短期排放估计显示出显著的误差差异.
- 在CMS性能中偏差较低导致在较长的时间范围内汇总时,排放估计得到了大幅改善.
- 在4周内,释放了700公斤的甲;CMS估计673公斤 (4%低估).
结论:
- 先进的CMS可以在复杂,动态的场景中准确量化现场级累积甲排放.
- 这些发现凸显了CMS在石油和天然气行业加强排放监测和监管应用方面的潜力.
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