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    • 32. 发明申请
    • A METHOD FOR MONITORING FUGITIVE GAS EMISSIONS FROM THE SOIL, VIA VERTICAL CONCENTRATION MEASUREMENTS
    • 通过垂直浓度测量监测来自土壤的排放气体排放的方法
    • WO2012046180A1
    • 2012-04-12
    • PCT/IB2011/054351
    • 2011-10-04
    • TEA SISTEMI S.p.A.ANDREUSSI, Paolo
    • ANDREUSSI, Paolo
    • G01M3/38G01N21/39
    • G01N21/3103G01M3/38G01N21/3504G01N2021/1795G01N2021/399G01N2201/0214
    • Method for the quantification of the fugitive gas flow from a dispersed source (A) by monitoring with a remote detection optical instrument mounted on an aircraft (UAV) which moves at a determined height along a plane (S) perpendicular to the direction of the wind field (u), such wind field being known through suitable positioning of meteorological stations within and in areas neighbouring the site to be monitored according to known techniques and use of commercially available diagnostic meteorological models. By this instrument discrete vertical measurements are carried out of the fugitive gas concentration averaged over said height along the whole width (W) of the plane (S) to yield corresponding mean vertical concentration values and, according to mean wind speed values detected at said discrete vertical measurements, a value of the fugitive gas flow (Q) is obtained by integrating the product of the mean vertical concentration values and of the corresponding mean wind speed values with respect to the surface of the sampling plane (S). The obtained value of the fugitive gas flow (Q) is corrected by a corrective factor (a) obtainable by comparing concentration values obtained by direct measurements and values calculated by dispersion models.
    • 通过使用安装在飞行器(UAV)上的远程检测光学仪器进行监测来量化来自分散源(A)的短暂气体流的方法,其以垂直于风向的平面(S)在确定的高度移动 (u),这样的风场是通过根据已知技术和市售的诊断性气象模型的使用通过适当地定位要监测的站点内和附近的区域中的气象站而已知的。 通过该仪器,沿着平面(S)的整个宽度(W)在所述高度上平均的逸散气体浓度进行离散垂直测量,以产生相应的平均垂直浓度值,并且根据在所述离散值处检测到的平均风速值 通过将平均垂直浓度值和对应的平均风速值的乘积相对于采样平面(S)的表面积分,获得短暂的气体流量(Q)的值。 通过比较通过直接测量获得的浓度值和通过分散模型计算的值可获得的校正因子(a)来校正获得的逸散气体流量(Q)值。