Showing results for: open-path Articles
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The Technology Behind GasFinder
This is a group of tutorials and papers based on the scientific principles of open path gas measurement, a broad collection intended for those who are unfamiliar with infra-red laser-based ...
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Complete HF Monitoring Solutions for Primary Aluminum Smelters
Aluminium smelting generates large amounts of hydrogen fluoride gas (HF). Worker safety and ambient air quality concerns require that HF be monitored at several locations in smelters. Historically, a variety of methods have been used for HF monitoring. Cassette samplers and wet chemistry techniques, coupled with complex and expensive sampling manifolds have monitored roof-line and scrubber duct ...
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Integral transport scheduling in emergency relief based on an immune evolutionary algorithm
The integral transport scheduling problem in emergency relief is studied with the following features: simultaneous transport of people and resources, integral forward and reverse transport, matching between scattered vehicles and demands. The proposed solution has two stages: first, feasible paths are generated by an exact algorithm and an immune evolutionary algorithm, all based on an open path ...
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Remote sensing of emissions: new technologies and recent work
The Second International Workshop on Remote Sensing of Emissions: New Technologies and Recent Work was held April 1-3, 2008. The workshop was sponsored by the U.S. Environmental Protection Agency's (EPA) Office of Air Quality Planning and Standards at Research Triangle Park (RTP), Office of Research and Development (RTP), and Office of Solid Waste and Emergency Response (HQ). At the workshop, ...
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H2S Safety in Sour Gas Operations
How GasFinder works Boreal Laser’s GasFinder & GasFinder MC are open-path gas detectors that use an integrated transmitter/receiver unit and a remote, passive retro-reflector. In GasFinder (see below) the transceiver als o houses the laser diode, drive electronics, detector module and micro-computer subsystems. The transceiver unit is contained in an IP65 enclosure and has connectors for ...
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First Laser H2S Open Path for safety related applications
Teledyne Gas and Flame Detection is unveiling its GD1 laser-based gas detector with full SIL2 3rd party approval. This ground-breaking development means that the GD1 SIL2 is the market´s first open-path gas detector for hydrogen sulphide (H2S) safety-related applications. The global importance of SIL (Safety Integrity Level) has grown substantially in the oil, gas, petrochemical and other ...
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Compliance to standards in continuous emissions monitoring case study
Customer: Glass Manufacturer Application: Continuous Emissions Monitoring Service (CEMS) for Glass Manufacturing Background: A glass factory is required to continuously monitor emissions in compliance with the Operating Licence. The licence requires a reliable Continuous Emissions Monitoring Service (CEMS) installation for the measurement of Oxygen, NOx, Temperature and Opacity. The exhaust ...
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Open source: an opportunity structure for boundless innovation
The methods Open Innovation (OI) and Open Source Innovation (OSI) are often highlighted together as new forms of the creation of innovation. Their respective peculiarities are considered only rarely, because ? as Abdelkafi et al. argue in 2009 ? for many it suffices to say that both innovation methods imply an open participation of human resources. This is however not the case. By answering the ...
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Nikira Labs OEA-532 Deployment at Christman Airfield
The Nikira Labs Optical Extinction Analyzer (OEA-532) was deployed alongside several co-located nephelometers at the Christman Airfield (Fort Collins, CO). The measured data taken over 3-week period was compared directly to an open-path Optec NGN-2a Nephelometer. The OEA-532 was placed outdoors in a covered lean-to with no thermal control or other environmental protection. DATA PRESENTATION ...
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Safety Monitoring in HF Alkylation Units
How GasFinder works Boreal Laser’s GasFinder & GasFinder MC are open-path gas detectors that use an integrated transmitter/receiver unit and a remote, passive retro-reflector. In GasFinder (see below) the transceiver also houses the laser diode, drive electronics, detector module and micro-computer subsystems. The transceiver unit is contained in an IP65 enclosure and has connectors for power ...
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Developing innovation strategies for convergence – is ‘open innovation’ imperative?
Industrial change leading to industry convergence can be observed in many industries. This is provoked by the application of new technologies across industry boundaries, changing customer structures and regulations. Convergence presents a particular context for innovation and technology management, as firms face new bodies of technological and market knowledge which may create competence gaps. ...
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On the Application of Open-Path Fourier Transform Infrared Spectroscopy to Measure Aerosols: Observations of Water Droplets
ABSTRACT This paper proposes the application of Open-Path Fourier Transform Infra-Red (OP-FTIR) spectroscopy to measure aerosols. A preliminary experiment conducted in a standard shower chamber generated a condensed water aerosol cloud. The OP-FTIR beam acquired spectra through the cloud of water droplets. We matched calculated extinction spectra to measured extinction in the spectral range ...
By Arcadis
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A Comparison of Point Sensors and Open Path Monitors For Toxic Gas (esp. HF) Monitoring
Point Sensors Ion Mobility Spectroscope (IMS) – a gas sample is ionized by a radioactive source (Ni63). Differences in ion drift under the influence of an applied electric field produce a spectrum that is dependent on the mass, charge, and shape of the component ions. The detector signal and strength is tuned to the drift time of the ion of interest (in this case HF) and signal strength is ...
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Ambient Air Fence Line Application case study
Customer: Confidential Application: Ambient air Fenceline application Background: The Victoria Environmental Protection Agency installed an Opsis DOAS open path system to measure Benzene & SO2 emissions on the Fenceline of our client’s refinery. After initial findings, our client was requested to supply their own monitoring system. Ecotech was approached to design, install and ...
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An Application of Tomographic Reconstruction of Atmoshperic CO2 Over a Volcanic Site Based on Open Path IR Laser Measurements
Abstract—The southern area of Italy is characterized by the presence of many active volcanic areas. In Pozzuoli (Naples, Italy), an urban area characterized by high volcanic risk, a gas emitting site is present. An high percentage of CO2 is emitted, whose atmospheric concentration measurement is an important task in many environmental and scientific applications. In this paper, we describe the ...
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TDLAS Gas Detection Instrumentation
PKL Technologies Inc. manufactures tunable diode laser (TDLAS) based gas detectors and monitors. Spectra-1 open path gas sensors are used in a variety of environmental and safety remote sensing applications. Spectra-1 gas sensors have been designed in a compact, easy to use, robust and portable format. Spectra-1 has been developed using proprietary hardware and software, to produce a low cost ...
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PerspectUV- an open path ambient gas monitor for industry
ABSTRACT PerspectUV is a unique instrument developed to perform ambient air monitoring in urban and industrial settings. It has been designed to be transportable with quick and simple set-up and operation that requires no specialist knowledge by the user. The instrument is fully weatherproof for operation in a wide range of environmental conditions and maintenance is minimal. This paper ...
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The Application of a Laser Based Open-Path Spectrometer for the Measurement of Fugitive Emissions and Process Control.
ABSTRACT In this paper examples of field operations are presented explaining the application of a new laser based spectrometer and incorporating real-time dispersion modeling techniques to measure fugitive emissions from land fills, gas processing facilities, chemical plants, aluminium smelters, etc. Whilst open-path FTIR spectrometers can measure a variety of gases, they suffer from the ...
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Using Open Path TDLAS CO2 Sensors for Carbon Capture and Storage Projects
Public confidence in CCS projects worldwide is not very high. Many believe that CCS is not permanent storage, and at great expense to govermnents who are funding these projects. Effective monitoring and verification programs could go a long way to improve public perception. Our Spectra-1 open path TDLAS gas sensor has shown very high accuracy in monitoring ambient CO2 levels. Better than 0.3% ...
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Field Evaluation of a Method for Estimating Gaseous Fluxes from Area Sources Using Open-Path Fourier Transform Infrared
This paper describes results from the first field experiment designed to evaluate a new approach for quantifying gaseous fugitive emissions of area air pollution sources. The approach combines path-integrated concentration data acquired with any path-integrated optical remote sensing (PI-ORS) technique and computed tomography (CT) technique. In this study, an open-path Fourier transform infrared ...
By Arcadis
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