Air Monitoring


New Compressor Sample Gas Coolers – for High Flow Rates and Water Vapour Concentrations


For continuous extractive gas analysis reliable sample gas coolers are essential to ensure that the sample gas is cooled down to a constant low temperature, e.g. 3°C. At this temperature the water vapour inside the sample gas condensates and can be removed before the gas stream reaches the analyser. This step is crucial to protect the highly sensitive gas analysers downstream from damage caused by condensate.


In addition, depending on the method of measurement and the measured gas components water vapour cross-sensitivities may occur. In this case the analyser takes the water vapour for the gas component that needs to be measured and falsifi es the actual measured value. For this reason not only a low but also a constant water vapour dew point is important. With a varying dew point or water vapour content also the measured value would change.


Another important requirement for a sample gas cooler is that the measured values are not corrupted by the wash-out of water soluble gas components such as SO2 or NO2.


Ideally, the sample gas cooler comprises all the those requirements in the smallest possible outlines.


To meet these important requirements JCT Analysentechnik GmbH (Austria) has designed the compact and high-performance compressor sample gas cooler, with entirely new heat exchanger elements, which are also very easy to replace. These guarantee a reliable separation of water vapour combined with low wash-out rates. Depending on the application, customers may choose from different heat exchanger materials such as PVDF, Duran glass, stainless steel or corrosion-resistant coated aluminium.


The new compressor sample gas coolers of the series JCS-100 are available with one or two separate gas path. Even for challenging applications with high fl ow rates in combination with high water vapour concentrations, the coolers of the JCS-100 series may be used.


For safe operation all coolers are equipped with a digital temperature display and a temperature alarm contact. They can also be supplied with integrated condensate pumps for reliable condensate disposal. The integrated high current volt free status relay can be used for direct switching of an external sample gas pump. Thus the gas analyser is protected against damage due to condensate at all times.


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Cost Effective Sample Gas Handling Systems for CEMS (Continous Emission Monitoring)


For reliable and continuously operating exhaust gas analysis with repeatable and representative measurement results it is essential to have an effi cient and tailored sample handling system. This is often a complex task with several steps of conditioning equipment. Only the correct choice and the right sequence will lead to continuous and trouble free operation of the whole system, ideally with minimum maintenance and of course cost effective - for the system integrator as well as the operator.


The fi rst critical step in the sample handling sequence is the gas sampling probe - usually a heated gas sampling probe that removes dust particulates and other solids and avoids condensation of water vapour. The heating avoids corrosion as well as chemical change like wash out of water soluble gases. A consistent and homogenous temperature above the dew point is essential. The basic models of the JES series sampling probes offer a wide range of sampling tubes, heated sampling tubes and pre fi lters. Completed by an extensive range of built in options like fl ange size, fi lter material, process cut-off valves, back purge and calibration systems the sampling probe can be tailored exactly to any application.


For the transport of the sample gas to the analyser house JCT offers different heated sample lines of the JH3 series. These lines prevent condensation and chemical change of the sample. When used outdoor in cold ambient it also protects from freezing. The JH3 heated sample lines are available as cut-to length version for self-assembly on site or as custom tailored version. The additional options like replaceable inner core, calibration gas core or control and power supply cables convert these sample lines into all-in-one bundles.


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33794pr@reply-direct.com Innovation in Gas Analysis


5


The One-Stop Gas Sampling and Conditioning Solutions JCT


Analysentechnik GmbH


Gas Sampling Probes Heated Sample Lines Sample Gas Coolers


Compressor Sample Gas Cooler JCS-100


The new economic JCS-100 series features a state-of-the-art powerful heat exchanger for both high flow rates and high water vapour concentrati- ons. They provide highly accurate long-term stable measurement results and minimised


SO2 was- hout.


Sample Gas Coolers and Conditioners


Accessories Condensate


Treatment


Gas Conditioning Systems


Sample Gas Converters


Heated Sample Lines


Gas Sampling Probes


portable solutions - stationary solutions - ATEX certified solutions


For More Info, email: email:


For More Info, email: email:


6100ad@reply-direct.com www.envirotech-online.com IET Annual Buyers’ Guide 2016/17


Tel +43 2622 / 87201 sales@jct.at


www.jct.at


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