METHOD FOR ESTIMATING FLUX USING HANDHELD GAS SENSORS AND AN INERTIAL MEASUREMENT UNIT

A system, method, and apparatus are provided for estimating a flux of fugitive gas emissions. The method is performed using a gas analyzer coupled to a sampling wand, where gas enters the inlet tip of the sampling wand prior to being sampled by the gas analyzer. The sampling wand is fixed to a mobil...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEEN, John B, THOMAZ, Joseph E, BAER, Douglas S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING GYROSCOPIC INSTRUMENTS HEATING LIGHTING MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MECHANICAL ENGINEERING NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PIPE-LINE SYSTEMS PIPE-LINES STORING OF DISTRIBUTING GASES OR LIQUIDS SURVEYING TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A system, method, and apparatus are provided for estimating a flux of fugitive gas emissions. The method is performed using a gas analyzer coupled to a sampling wand, where gas enters the inlet tip of the sampling wand prior to being sampled by the gas analyzer. The sampling wand is fixed to a mobile device that includes an inertial measurement unit. Location information from the inertial measurement unit is used to compile a high resolution geo-spatial map of gas concentration levels across a cross-sectional area of a gas plume. A near-field Gaussian plume inversion calculation is then performed to estimate the flux based on the gas concentration data and the location information.