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Xprt Product Applications In Algeria
162 applications found
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The almost closed environment means that high levels of air pollution often occur inside the tunnels. The limit values for the pollutants are often higher in tunnels than in open ambient air because the exposure time is normally limited, but it may still be necessary to monitor that the limit values are not exceeded. Traffic tunnels often have to be provided with ventilation to keep the levels of air pollutants below the applicable limit values. To save energy, however, it is common not to operate the fans more ...
ByOPSIS AB based in  Furulund, SWEDEN
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Air pollution at regional and national scales. It is important to monitor air pollution where many people stay, i.e. in cities and especially at street level. In order to better understand where the pollution comes from, a so-called background monitoring may also be needed. Then the monitoring station is placed in the countryside, at a great distance from obvious sources of the ...
ByOPSIS AB based in  Furulund, SWEDEN
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Various types of sulfur compounds often arise during the production of paper pulp. There are emission limits and monitoring requirements, often expressed as total reduced sulfur, TRS. TRS includes hydrogen sulfide, H2S, and the sulfur compounds methyl mercaptan, dimethyl sulfide, and dimethyl disulfide. OPSIS offers systems to monitor both H2S and ...
ByOPSIS AB based in  Furulund, SWEDEN
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Challenging conditions for gas analysis at waste-to-energy facilities. Process and emissions monitoring at waste-to-energy plants or plain waste incineration plants can be a challenge. A large number of gas components need to be monitored with high accuracy. The flue gas is often aggressive and has high dust and moisture content. Close to 100% uptime is required, the monitoring system must be easy to maintain, and it must be able to be calibrated quickly. The OPSIS monitoring system handles all these challenges ...
ByOPSIS AB based in  Furulund, SWEDEN
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Port environments can be particularly exposed to air pollution, both in gaseous form and as particles. The ships are an obvious source, but both activities related to the unloading and loading of goods and land traffic to and from the ports can also contribute. Monitoring the concentration of air pollutants can be done both in order to monitor the environment in general and to map the sources. In the case of emissions from ships, it may be of particular interest to monitor sulfur dioxide (SO2) levels near the ...
ByOPSIS AB based in  Furulund, SWEDEN
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Gas analysis in brick manufacturing: Process control and emissions monitoring at brick plants can be challenging due to high concentrations of hydrogen fluoride (HF) and dust. The use of extractive monitoring systems in such environments requires a lot of maintenance and can still cause major operational disruptions. However, the contactless technology offered by OPSIS solves the ...
ByOPSIS AB based in  Furulund, SWEDEN
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Demanding monitoring environment at cement industries. Process control and emissions monitoring at a cement plant can be a challenge due to high dust levels and corrosive gases. OPSIS offers gas analysis systems that can handle these environments and that have high accuracy, short response times, and long maintenance ...
ByOPSIS AB based in  Furulund, SWEDEN
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'Chemical industry' can comprise many types of industries, for example refineries, paper mills, fertilizer production, and sulfuric acid plants. Each individual industry may have its own special needs and special environments, but there are also many common factors. Regardless, process control and emissions monitoring at chemical plants can be challenging due to for example toxic, aggressive and/or explosive gases, and high temperatures. The use of extractive systems in such environments requires a lot of ...
ByOPSIS AB based in  Furulund, SWEDEN
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The high temperatures in glass manufacturing can make it difficult to monitor gas concentrations for process control and emissions monitoring. However, OPSIS offers monitoring systems that handle the high temperatures in an excellent way. ...
ByOPSIS AB based in  Furulund, SWEDEN
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Process control and emissions monitoring in a mineral wool plant is a challenge due to the presence of phenol and formaldehyde. To use an extractive system in this environment will demand a lot of maintenance. The OPSIS DOAS system is different and provides plants with an accurate analyser that will operate with a minimum of maintenance. The OPSIS DOAS system is based on a non-contact method using an optical measurement path that can operate across the ...
ByOPSIS AB based in  Furulund, SWEDEN
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Make more out of your mill. OPSIS tested and approved monitoring systems provide cost-effective and reliable on-line monitoring of several gas compounds, such as both high and low concentrations of methane, moisture, carbon dioxide and hydrogen sulphide, at several ...
ByOPSIS AB based in  Furulund, SWEDEN
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The nature of steel manufacturing processes places severe limitations on the monitoring methods that can be used. Aggressive environments combined with high levels of particulates and gases make the choice very ...
ByOPSIS AB based in  Furulund, SWEDEN
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A tough environment requires toughened monitoring equipment. Process monitoring at a sulfuric acid plant requires good and reliable detection of, among other things, sulfur dioxide (SO2) in gas phase. This can be a challenge due to high concentrations of SO2, high temperatures, and high pressure. Monitoring may be needed at several locations in the process where SO2 concentrations may vary from a few mg/m3 to several percent by volume. Not all monitoring systems can handle these conditions and those that do ...
ByOPSIS AB based in  Furulund, SWEDEN
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Monitoring elemental and total mercury. There is a risk of toxic mercury being released into the air at for example waste incineration and cement production, and from coal-fired thermal power plants. To prevent this, there are requirements for flue gas treatment with low emission limits, and requirements for monitoring of the levels not exceeding these limits. OPSIS offers well-proven and certified systems for the required monitoring of mercury levels, both elemental mercury and the mercury compounds collectively ...
ByOPSIS AB based in  Furulund, SWEDEN
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Ships: floating fossil power plants with emissions to air as for land-based power plants. The UN agency IMO has issued rules (the MARPOL convention) on the limitation of ship emissions into the ambient air. Among other things, nitrogen oxides (NOX) and sulfur (sulfur dioxide, SO2) are regulated. OPSIS has the instruments to monitor the ...
ByOPSIS AB based in  Furulund, SWEDEN
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Monitoring real emissions from vehicles with combustion engines. Emissions from vehicles powered by fossil fuels have traditionally been tested in laboratories, but the results rarely reflect reality. Therefore, rules regarding "Real Driving Emissions" (RDE) have been added. The emissions are then measured correctly in a real environment and during real driving. OPSIS offers an RDE monitoring system based on the well-proven DOAS ...
ByOPSIS AB based in  Furulund, SWEDEN
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Monitoring of fugitive emissions from industrial facilities. Most of the OPSIS gas analysis systems are based on monitoring methods with open measurement paths. This provides a perfect tool for monitoring the air quality and detecting any gas leaks from industrial facilities so that staff and nearby residents can be alerted and measures can be taken ...
ByOPSIS AB based in  Furulund, SWEDEN
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Process monitoring and monitoring of emissions from aluminium smelters can be a challenge due to high concentrations of for example hydrogen fluoride (HF) and dust. The use of sampling systems in such environments requires a lot of maintenance and is therefore costly. Such systems can also be unreliable. OPSIS offers better ...
ByOPSIS AB based in  Furulund, SWEDEN
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A challenging environment for monitoring instruments. Process control and emissions monitoring at a fertilizer plant can be difficult due to aggressive process gases in high concentrations, sometimes at high temperatures and pressures. Use of extractive monitoring systems in such an environment requires a lot of maintenance and the instruments are prone to malfunction. However, unlike extractive systems, OPSIS non-contact monitoring technology has no problem handling these ...
ByOPSIS AB based in  Furulund, SWEDEN
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The process control of a CO2 capture plant needs good and reliable detection of gas phase NH3 and CO2. Measuring NH3 is a challenge due to the corrosive environment and high concentrations of NH3. Several places in the process needs to be monitored and to transport the sample is difficult. A large dynamic range is needed as the NH3 concentration can vary between 15% volume and a few ...
ByOPSIS AB based in  Furulund, SWEDEN