Gas Imaging Articles on Environmental XPRT

The Drumbeat on infrared thermal imaging

Drumbeat Energy regards infrared (thermal) imaging as an amazingly useful tool in the quest for greater energy efficiency. It has the ability to define non-invasively and with uncanny speed and accuracy where heat is leaking from a building. Never was the expression “A picture paints a thousand words” ...

Feb. 21, 2013

By Drumbeat Energy Limited

Three–dimensional pore networks and transport properties of a shale gas formation determined from focused ion beam serial imaging

Three–dimensional pore network reconstructions of mudstone properties are made using dual focused ion beam–scanning electron microscopy (FIB–SEM). Samples of Jurassic Haynesville Formation mudstone are examined with FIB–SEM and image analysis to determine pore properties, topology, and tortuosity. Resolvable pore morphologies (>~10 nm) include large slit–like pores between clay aggregates and ...

Apr. 4, 2012

By Inderscience Publishers

Three-dimensional pore networks and transport properties of a shale gas formation determined from focused ion beam serial imaging

Three-dimensional pore network reconstructions of mudstone properties are made using dual focused ion beam-scanning electron microscopy (FIB-SEM). Samples of Jurassic Haynesville Formation mudstone are examined with FIB-SEM and image analysis to determine pore properties, topology, and tortuosity. Resolvable pore morphologies (>~10 nm) include large slit-like pores between clay aggregates and ...

May 12, 2011

By Inderscience Publishers

3D Offshore Imaging for Seawater Intake for Desalination Plants - Case Study

AGI’s Multi-Electrode Switch Box is an accessory to the SuperSting Wi-Fi. It allows the SuperSting Wi-Fi to automatically ...

Jun. 16, 2017

By Advanced Geosciences, Inc.

A preliminary study of the application of Background Oriented Schlieren (BOS) for the qualitative imaging of methane emissions from coal

Methane presents a pervasive risk in most coal mines, its dilution being one of the primary objectives of the ventilation system. Although many different types of detectors and techniques exist for quantifying methane, little is known about the qualitative aspects of methane, such as visualising how this gas flows from coal. Background Oriented Schlieren (BOS) provides a potential method from ...

Sep. 12, 2011

By Inderscience Publishers

Springs Limestone Fractures - Exploring & Imaging Limestone Fractures at Comal Springs - Case Study

In March 2015, AGI, in partnership with The Jackson School of Geosciences at The University of Texas at Austin and Dr. Marcus Gary of the Edwards Aquifer ...

Jun. 8, 2016

By Advanced Geosciences, Inc.

Fugitive Gas Emissions In The Petroleum & Natural Gas Industry

Challenge: Fugitive emissions in the petroleum and natural gas industry can come from a variety of sources and are classified as intentional (venting from tanks, compressor vents and stacks) or unintentional (equipment wear and tear, improper assembly, damage or manufacturing defects). Most of these fugitive gas leaks are considered insignificant or too small to ...

Jul. 7, 2010

By Leak Imaging, LLC

Gas-to-Energy plant; production of electricity with landfill gas

Type Degassing installation HOFGAS®-C7/1000 + HOFGAS®-Ready 600 Commissioning May 2002 Site Landfill of Iles Les Meldeuses Situation The landfill is being degassed by a plant we supplied in 1998. For the planned extension phase Hofstetter France Sarl was committed to work out a concept for the enhancement ...

Jan. 5, 2009

By Hofstetter BV

Installation of the fixed gas detection

OC-F08 fixed gas monitor with the original imported sensor used to detect the Oxygen gas, combustible gas, toxic gas, CO2, etc. With the different working principle, Electrochemical sensor for O2 and toxic gas, Catalytic combustion sensor for combustible gas, PID sensor for the VOC, Infrared sensor for the CO2 ...

May 20, 2017

By Henan Oceanus Import & Export Co., Ltd

An alternative method to improve the settleability of gas-vacuolated cyanobacteria by collapsing gas vesicles

This study estimated the ability of pressurization to collapse gas vesicles and thereby enhance the settleability of fresh water cyanobacteria. Settling velocities of Pseudanabaena galeata and Microcystis aeruginosa were measured at 11 different pressure values from 0 to 0.5 MPa. The morphological variations that occurred in the gas vacuoles according to the applied pressure ...

May 5, 2016

By IWA Publishing

Gas Hydrate Breakdown Unlikely to Cause Massive Greenhouse Gas Release

The breakdown of methane hydrates due to warming climate is unlikely to lead to massive amounts of methane being released to the atmosphere, according to a recent interpretive review of scientific literature performed by the U.S. Geological Survey and the University of Rochester. Methane hydrate, which is also referred to as ...

Feb. 9, 2017

By U.S. Geological Survey (USGS)

Oil & Gas Leakage Detection Contractors

RADS (Remote Aerial Detection Systems) teamed with market leading vendors to supply state-of-the-art Intelligence Surveillance and Reconnaissance (ISR) and security equipment. RADS is a US-based top-tier Technology Integrator that serves international commercial and government customers across the world. Unlike the large US defense contractors, RADS is independent and can operate with agility ...

Jul. 27, 2013

Advances in gas control technology in the brewery

The use of nitrogen as a process gas, foam enhancer and flavour modifier has come to the fore over the last 10 years, with dissolved gas specifications becoming more stringent. Increasingly, marketing and consumer requirements for a targeted product identity or image have to be met, not only for taste but, perhaps equally as importantly for the consumer, ...

Feb. 1, 1997

Gas Dilution With The Equal Capillaries Technique

The advantages of the equal capillaries technique are surprising and leads to reach accuracy values of one order of magnitude higher than all the other dynamic dilution techniques. This comparison will be supported by analyzing the accuracy available with two different techniques. Nozzles (sonic or non-sonic) technique With this technique, a series of different size nozzles is used ...

Aug. 4, 2016

By Be.T.A. Strumentazione Srl

CFD modelling of electrohydrodynamic gas flow in an electrostatic precipitator

Modelling of the flow velocity fields for electrohydrodynamic flow in a wire-to-plate type electrostatic precipitator was achieved. From calculations for the flow employing different flow models, the Chen-Kim k − ε turbulent model appeared to be the most appropriate choice to obtain a quantitative image of the resulting mean flow field and downstream wake flow of the rear wire, although this was ...

Mar. 10, 2009

By Inderscience Publishers

Learining how to Choose Materials for Gas Valves

The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance of the components of the valve body cannot meet the requirements or even break, it will result in the spillage of gas and explosion. Therefore, material and quality are the most critical part during the ...

Sep. 23, 2016

By China Xinhai Valve Manufacturer Company

Upgrading from Pellistor Gas Sensors to Infrared Technology

In this article Andy Avenell, Crowcon’s Fixed Systems Product Manager, considers the shift towards infrared (IR) gas sensor technology in the oil and gas industry. Abstract Flammable gases and vapours can present considerable dangers in many industrial applications, none more so than the processes involved in extracting, transporting and processing oil and gas. Fast and reliable ...

Feb. 1, 2010

By Crowcon Detection Instruments Ltd - a Halma company

The Measurement of Gas Bubble Size Distributions in a Three Phase Laboratory Gassy Soil

The technique developed can be used to measure the total void, gas void, or particle size distribution in both gassy and saturated sediments provided the void spaces, or particles, can be approximated to spheres. Here the technique is demonstrated for measuring gas bubble size distribution in a reconstituted estuarine silty clay, which has been impregnated with methane gas using the method ...

Mar. 1, 1988

By ASTM International

Development of a novel odor measurement system using gas chromatography

This paper describes a novel odor measurement system for creating arrays of virtual chemical sensors with nonoverlapping responses using ultrahigh-speed gas chromatography with a surface acoustic wave sensor (GC/SAW). This GC/SAW system provides high-resolution twodimensional olfactory images for easy recognition of many complex odors. Separation and quantification of the individual chemicals ...

Dec. 3, 2008

By Air & Waste Management Association (A&WMA)

High-performance geomembranemth evoh technology part of gas vapor mitigation solution case study

Project: Chik-Fil-A Location: Fort Worth, TX Products: Liquid Boot PLUS Gas Vapor Mitigation System with VI-20™ Geomembrane GeoVent™ Gas Venting System Background: The owner of the former manufacturing site and the engineer understood the value of having a barrier with superior vapor resistance and a long standing ...

Feb. 15, 2013

By CETCO

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