Abstract: A sensor having a converging shape (e.g., ellipsoidal) that causes a flow stream velocity to increase from the entry towards the center (narrowest region), in line to Bernoulli's principle. The sensor includes a trapped volume that can be used to detect gas molecules. The positioning of the sensor in a narrow region can expose it to higher velocity and higher ppm, which in turn lead to a better exchange of molecules between ambient and the void in front of a gas sensing element within the sensor, thereby improving the sensor's ability to detect gas molecules at lower concentrations and with a higher speed of response. The shape of the emission detection device allows for flow convergence regardless of the wind direction in 360°.

Abstract: A method and system for locating and quantifying fugitive gas emission leaks includes obtaining gas sensor data and wind direction data from a plurality of sensors and weather stations located proximate a given area of interest. The gas sensor data and the wind direction data is validated to remove erroneous values and to merge the gas sensor data with the wind direction data to provide time synchronized gas sensor data and wind direction data over a given time interval. The time synchronized gas sensor data and wind direction data is segmented for each gas sensor location into wind direction bins containing a concentration of the gas levels in each bin. The area of interest is divided into a grid of cells and the bins projected on the grid cells for each gas sensor location along with the level of gas contained in the bins.

Abstract: A method and system for determining the size of a gas emission expelled from a processing facility includes obtaining gas sensor data from a plurality of gas sensors and wind speed and direction data from at least one weather station located at the processing facility. The wind speed and direction data is correlated with the gas sensor data to triangulate a location of the gas emission. A mean concentration of the gas emission is calculated, and the size of the gas emission is estimated by using at least one of a base calculation model, a gaussian plume (GP) model fit, or an event probability model fit.

Abstract: An illustrative system for probability based fugitive gas leak detection comprises an equipment group including: a potential fugitive gas source; and a plurality of gas sensors positioned at respective locations in proximity to the potential fugitive gas source, wherein each of the plurality of gas sensors is configured to detect gas concentrations over a time period, and a supervisor communicatively coupled to the equipment group, the supervisor being configured to: receive the detected gas concentrations; determine a probability matrix based at least on the coordinates of the gas sensors and coordinates of the potential fugitive gas source; and identify the potential fugitive gas source as an actual fugitive gas source based on the probability matrix and the detected gas concentrations.

Abstract: A system and method for training a machine learning gas detection model that monitors gas sensors located at an industrial site. The system and method uses a digital twin arranged to execute simulations of gas leaks using a virtual representation of the physical industrial site and varying simulated wind patterns, gas leak locations and leak rates. The simulations executed by the digital twin train a machine learning gas detection model with time-series gas sensor responses for the simulated gas leaks executed by the digital twin. The trained gas detection model is used in a gas detection system to monitor for gas leaks at the physical industrial site.

Abstract: A method and system for determining the size of a gas emission expelled from a processing facility includes obtaining gas sensor data from a plurality of gas sensors and wind speed and direction data from at least one weather station located at the processing facility. The wind speed and direction data is correlated with the gas sensor data to triangulate a location of the gas emission. A mean concentration of the gas emission is calculated, and the size of the gas emission is estimated by using at least one of a base calculation model, a gaussian plume (GP) model fit, or an event probability model fit.

Abstract: A method and system for locating and quantifying fugitive gas emission leaks includes obtaining gas sensor data and wind direction data from a plurality of sensors and weather stations located proximate a given area of interest. The gas sensor data and the wind direction data is validated to remove erroneous values and to merge the gas sensor data with the wind direction data to provide time synchronized gas sensor data and wind direction data over a given time interval. The time synchronized gas sensor data and wind direction data is segmented for each gas sensor location into wind direction bins containing a concentration of the gas levels in each bin. The area of interest is divided into a grid of cells and the bins projected on the grid cells for each gas sensor location along with the level of gas contained in the bins.

Abstract: A sensor having a converging shape (e.g., ellipsoidal) that causes a flow stream velocity to increase from the entry towards the center (narrowest region), in line to Bernoulli's principle. The sensor includes a trapped volume that can be used to detect gas molecules. The positioning of the sensor in a narrow region can expose it to higher velocity and higher ppm, which in turn lead to a better exchange of molecules between ambient and the void in front of a gas sensing element within the sensor, thereby improving the sensor's ability to detect gas molecules at lower concentrations and with a higher speed of response. The shape of the emission detection device allows for flow convergence regardless of the wind direction in 360°.

Abstract: A system, method, and apparatus for reducing ringing effects associated with a transducer comprises a transducer body, a transducer cap, a piezoelectric element formed in the cap, and a damping material formed around the piezoelectric element wherein the damping material suppresses a ringing effect associated with the transducer, while an O-ring is used together with damping material to support high pressure applications up to 230 bars.

Abstract: A system, method, and apparatus for reducing ringing effects associated with a transducer comprises a transducer body, a transducer cap, a piezoelectric element formed in the cap, and a damping material formed around the piezoelectric element wherein the damping material suppresses a ringing effect associated with the transducer, while an O-ring is used together with damping material to support high pressure applications up to 230 bars.

Abstract: A system includes at least one pressure sensor that is configured to generate a first signal in response to sensing a process and generate a second signal in response to sensing a drift detection condition different from the process. The system includes at least one processing device that is configured to determine a pressure measurement (Pprocess) of the process using the first signal, and determine a pressure measurement (AP2) of the drift detection condition using the second signal. The at least one processing device is configured to compare the pressure measurement of the drift detection condition to one of: the pressure measurement of the process or a reference value. The at least one processing device is configured to identify whether drift has deteriorated accuracy of the at least one pressure sensor based on the comparison.

Abstract: An ultrasonic meter includes a group of piezoelectronic ceramic arrays, wherein each array comprises array stripes, such that a signal associated with each array can be split and a required phase shaft added to the signal to obtain simultaneously different data from the signal such as, for example, the transit time of a direct path and crosstalk. The smaller array can provide a higher aperture and improve the use of crosstalk.

Abstract: An ultrasonic meter includes a group of piezoelectronic ceramic arrays, wherein each array comprises array stripes, such that a signal associated with each array can be split and a required phase shaft added to the signal to obtain simultaneously different data from the signal such as, for example, the transit time of a direct path and crosstalk. The smaller array can provide a higher aperture and improve the use of crosstalk.