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Vehicle-Deployed Off-Axis Integrated Cavity Output Spectroscopic CH4/C2H6 Sensor System for Mobile Inspection of Natural Gas Leakage
ACS Sensors ( IF 8.2 ) Pub Date : 2022-05-27 , DOI: 10.1021/acssensors.2c00373 Kaiyuan Zheng 1 , Ling Yu 1 , Chuantao Zheng 1 , Zhenhai Xi 1 , Yixiao Zhang 1 , Ge Yan 1 , Haipeng Zhang 1 , Yu Zhang 1 , Yiding Wang 1 , Frank K Tittel 2
ACS Sensors ( IF 8.2 ) Pub Date : 2022-05-27 , DOI: 10.1021/acssensors.2c00373 Kaiyuan Zheng 1 , Ling Yu 1 , Chuantao Zheng 1 , Zhenhai Xi 1 , Yixiao Zhang 1 , Ge Yan 1 , Haipeng Zhang 1 , Yu Zhang 1 , Yiding Wang 1 , Frank K Tittel 2
Affiliation
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A vehicle-deployed parts-per-billion in volume (ppbv)-level off-axis integrated cavity output spectroscopic (OA-ICOS) CH4/C2H6 sensor system was experimentally presented for mobile inspection of natural gas leakage in urban areas. For the time-division-multiplexing-based dual-gas sensor system, an antivibration 35-cm-long optical cavity with an effective path length of ∼2510 m was fabricated with a high-stability temperature and pressure control design. An Allan deviation analysis yielded a minimum detection limit of 0.2 ppbv for CH4 detection and 10 ppbv for C2H6 detection for a 1 s averaging time. A natural gas leakage source location algorithm was proposed using an improved hybrid Nelder–Mead simplex search method and a particle swarm optimization (NM-PSO) algorithm. For field industrial application, the accuracy of the sensor system and leakage source location algorithm was confirmed through a CH4/C2H6 cylinder leakage experiment on the campus. Furthermore, through natural gas pipeline network inspection measurements in urban areas, three types of leakage sources, including natural gas, biogas, and possible leakage source were respectively located and confirmed using the global positioning system and wind speed and direction measurement system, verifying the reliability and potential application of the vehicle-deployed inspection system for future natural gas pipeline leakage monitoring.
中文翻译：
用于移动检测天然气泄漏的车载离轴集成腔输出光谱 CH4/C2H6 传感器系统
实验提出了一种车载部署的十亿分之一体积（ppbv）级离轴集成腔输出光谱（OA-ICOS）CH 4 /C 2 H 6传感器系统，用于城市地区天然气泄漏的移动检测. 对于基于时分复用的双气体传感器系统，采用高稳定性温度和压力控制设计制造了一个有效路径长度约为 2510 m 的抗振 35 cm 长的光学腔。Allan 偏差分析得出 CH 4检测的最低检测限为 0.2 ppbv，C 2 H 6的最低检测限为 10 ppbv平均时间为 1 秒的检测。采用改进的混合 Nelder-Mead 单纯形搜索法和粒子群优化 (NM-PSO) 算法，提出了一种天然气泄漏源定位算法。对于现场工业应用，传感器系统和泄漏源定位算法的准确性通过 CH 4 /C 2 H 6确认校园气瓶泄漏实验。此外，通过城市地区天然气管网巡检测量，利用全球定位系统和风速风向测量系统分别定位并确认了天然气、沼气和可能的泄漏源三类泄漏源，验证了可靠性。车载检测系统在未来天然气管道泄漏监测中的潜在应用。
更新日期：2022-05-27
中文翻译：
用于移动检测天然气泄漏的车载离轴集成腔输出光谱 CH4/C2H6 传感器系统
实验提出了一种车载部署的十亿分之一体积（ppbv）级离轴集成腔输出光谱（OA-ICOS）CH 4 /C 2 H 6传感器系统，用于城市地区天然气泄漏的移动检测. 对于基于时分复用的双气体传感器系统，采用高稳定性温度和压力控制设计制造了一个有效路径长度约为 2510 m 的抗振 35 cm 长的光学腔。Allan 偏差分析得出 CH 4检测的最低检测限为 0.2 ppbv，C 2 H 6的最低检测限为 10 ppbv平均时间为 1 秒的检测。采用改进的混合 Nelder-Mead 单纯形搜索法和粒子群优化 (NM-PSO) 算法，提出了一种天然气泄漏源定位算法。对于现场工业应用，传感器系统和泄漏源定位算法的准确性通过 CH 4 /C 2 H 6确认校园气瓶泄漏实验。此外，通过城市地区天然气管网巡检测量，利用全球定位系统和风速风向测量系统分别定位并确认了天然气、沼气和可能的泄漏源三类泄漏源，验证了可靠性。车载检测系统在未来天然气管道泄漏监测中的潜在应用。
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