Air Monitoring
– the manufacturing and development facility behind the Magee Scientific Aethalometers. Magee Scientific is the US company that originally developed the aethalometer technology. Dr. Griša Mocnik, Chief Scientific Officer and Director of Aerosol d.o.o.,says “The instrument was equipped with an isokinetic inlet and had to outperform almost anything we had made before; so far, it has measured very low levels over the oceans and sometimes surprisingly high concentrations of light absorbing aerosols over land. So the design was a tradeoff between measuring both low and high concentrations with no user intervention.
“Plumes of pollution will be encountered and using back trajectories possible source regions will be identified. The results will therefore be not only the concentrations of black carbon at the elevation of the flight but also the source locations.”
The raw data with a time resolution of 30 min is available with a time delay of about a day at:
www.cgsplus.si/portals/0/WGF/index.htm
Other Research
The importance of BC has been recognised by the European Commission which is funding a new research project (
www.Carbotraf.com) that aims to create a method, system and tools for adaptively influencing traffic flow in real-time to reduce
CO2 and BC emissions caused by road transport in urban and inter- urban areas.
The two host cities Glasgow and Graz, were chosen due to their ability to manage traffic flows and utilise real-time air quality monitoring systems from Air Monitors (UK) and a decision support system provided by IBM Inc.
Further information on the ‘GreenLight WorldFlight’ project is available at
www.worldgreenflight.com.
Fitting an aerosol inlet for an Aethalometer to measure Black Carbon
37
Take a look at our website
www.envirotech-online.com
Instruments for Hazardous Area Applications
For more than 30 years, Chromatotec Group (France) is specialised in the manufacturing of gas monitoring & analysis instrumentation. Chromatotec instruments (analysers with gas generators) offer a wide and varied
range of applications suitable for use in hazardous areas including: Emission/CEM, Impurity in pure gas (CO2, Total HydroCarbons, O2, N2, H2, CO, etc.) analysis, Natural Gas/Biogas – Sulphur compound monitoring and Ambient Air Monitoring (indoor & outdoor) – Volatile Organic Compounds detection.
Two Chromatotec instruments have recently completely passed the required tests according to the European Norm 14662-3:2005 (methods for the measurement of Benzene concentration). Recently, Chromatotec Group has installed three instruments in a world-wide soft drinks Manufacturer to control the quality of its CO2 production.
The three analysers, installed in a cabinet, continuously monitor levels of: BTEX compounds (Benzene, Toluene, Xylene) and Acetaldehyde with the AirmoBTX analyser, Volatile Organic Compounds (COV) and Total Hydrocarbons with the Chroma THC analyser, Sulphur Compounds with the Chroma S analyser, contained in the CO2 streams destined to be added to the manufacturer beverages.
Via VistaCHROM, the supervision program of Chromatotec instruments, the activation of four alarms has been incorporated into the analysis bay. These alarms alert the Production Department when the compounds detected levels exceed those defined by the regulatory body (International society of Beverage Technologists).
The Alarm 1 concerns Acetaldehyde and Benzene levels in µg/m3. The Alarm 2 is about Total Sulphur levels in µg/m3 The Alarm 3 concerns Total Hydrocarbons level (THC = CH4 + NMTHC) in ppb or in µg/m3
.
The Alarm 4 is about levels of H2S in µg/m3. Humidity level is also analysed in this cabinet. This efficient collaboration is the result of many years of experience between Chromatotec Group and pure gas manufacturers worldwide.
Reader Reply Card No. 164 or in sulphur equivalent.
Emerson today announce the release of the latest solution for combustion flue gas analysis, the Rosemount Analytical Model 6888 in situ oxygen analyser. The Model 6888 provides accurate measurement of the oxygen remaining in the flue gases coming from combustion processes such as boilers, incinerators, kilns, process heaters, and industrial heating furnaces. By maintaining the ideal level of oxygen in the flue gases, optimal efficiency is achieved and the lowest levels of NOX, CO and CO2 are produced.
New Portable FTIR Analyser on Display at Achema
Gas analyser manufacturer Gasmet Technologies Oy (Finland), has announced its participation in the Achema 2012 exhibition (Frankfurt, 18 – 22 June). The latest gas monitoring technology will be on display at stand C49 in hall 11.1 (Instrumentation, Control and Automation Techniques) including the new Gasmet DX 4040 – a unique portable FTIR analyser that enables the measurement of almost any gas or vapour.
Gasmet staff will be present at the show in addition to the company’s German distributor Ansyco GmbH, who will be available to provide help and advice on gas detection in a wide variety of industrial and environmental applications including continuous emissions monitoring (power plants, waste incinerators, cement kilns etc.) stack testing / comparison measurements, process control, industrial hygiene, indoor air quality, research, engine exhaust gas, semiconductor manufacturing, emergency / first response measurement (HAZMAT), greenhouse gas monitoring, carbon capture, fire testing etc.
Visitors to the Gasmet stand will be able to view live demonstrations of the new DX4040 portable multiparameter gas analyser in addition to transportable and continuous analysers.
Reader Reply Card No. 165
www.envirotech-online.com
The in situ design of the Model 6888 places a zirconium oxide sensing element at the end of a probe which can be inserted directly into a flue gas stream. Probe lengths are available from 18 inches to 12 feet, and a slip mounting option provides the ability to mount a long probe at any insertion depth. Signal conditioning electronics reside in the head of each probe, eliminating the need for expensive signal cable.
The Model 6888 is fully field-repairable. All active components can be replaced including the diffuser/filter, sensing cell, heater and thermocouple, and all electronics cards. A dual-channel operator interface unit provides an easy-to-use method of set-up, calibration and failure diagnostics.
“As the needs and compliance demands for flue gas analysis become greater, we are making our Rosemount Analytical instruments more and more accurate and easy-to-use to meet our customers’ requirements,” stated Dave Anderson, marketing director, Emerson Process Management, Rosemount Analytical.
Anderson added, “The Model 6888 is a real breakthrough in what has traditionally been an old-line technology. It promises real savings in time and resources for users, as well as a way to achieve compliance with federal and state regulations.”
Reader Reply Card No. 166 IET May / June 2012
New Combustion Flue Gas Analyser
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