公开(公告)号：US12050155B2

公开(公告)日：2024-07-30

申请号：US17685522

申请日：2022-03-03

Applicant: ABB Schweiz AG

Inventor： John B. Leen ,  Joseph E. Thomaz ,  Douglas S. Baer

IPC: G01M3/04 ,  F17D5/00 ,  F17D5/02 ,  G01C19/00 ,  G01C21/16 ,  G01M3/26 ,  G01N33/00 ,  G01P5/02 ,  G01P15/08 ,  G01P15/18

CPC classification number: G01M3/04 ,  F17D5/005 ,  F17D5/02 ,  G01C19/00 ,  G01C21/16 ,  G01C21/165 ,  G01M3/26 ,  G01N33/0009 ,  G01P5/02 ,  G01P15/08 ,  G01P15/18

Abstract: 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.

公开(公告)号：US20230280230A1

公开(公告)日：2023-09-07

申请号：US17685522

申请日：2022-03-03

Applicant: ABB Schweiz AG

Inventor： John B. Leen ,  Joseph E. Thomaz ,  Douglas S. Baer

IPC: G01M3/04 ,  G01C21/16 ,  G01P15/08 ,  G01C19/00 ,  G01P5/02 ,  G01P15/18

CPC classification number: G01M3/04 ,  G01C21/16 ,  G01P15/08 ,  G01C19/00 ,  G01P5/02 ,  G01P15/18

Abstract: 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.