isokinetic sampling Articles
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The Use of Analytical Method Validation to Compare Results Obtained Using Boreal Laser HF Analyse and Isokinetic Sampling Technique
Abstract Laboratories have a professional obligation to provide accurate and reliable analytical results to customers. The Laboratory should to justify the customer’s trust by providing the correct answer to the analytical part of the problem, in other words, results that have demonstrable ‘fitness for purpose’ Analytical method validation is one of the measure universally recognised by ...
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Dioxin sampling – A long term view
1) Introduction The expansion of the number of processes requiring measurement of emitted dioxins and the release of a new CEN Standard - EN 1948 - will significantly alter the market for instrumentation. Within the EU, individual member states will implement their own strategies for process approval based on dioxin sampling. However, typically processes are assessed quarterly, biannually or ...
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LISST-SL velocity thresholds
Is there a low velocity threshold for the LISST-SL? Does it need a minimum flow speed in order to sample? What is that? Absolutely! The internal pump in the SL will adjust the intake velocity to match the ambient flow speed in order to make the sample intake isokinetic. However, it is necessary to maintain a minimum pump velocity in order to avoid settling of particles inside the instrument. This ...
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Particle Tubing Transportation to a Particle Counter
The following describes particle behavior mechanisms and will assist in the understanding of sampling difficulties and how to improve the efficiency of sampling using a particle counter. The Stokes number is the ratio of a particle’s radius to the dimension of an obstacle in fluid flow. This is an important factor in determining when a particle in motion will be collected by an obstacle ...
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Hurricane for PM Emission Reduction from Dryer off Gases on a Wood Pellet Production Line 8074 m3/h @ 110 ◦C - Case Study
FOREWORD Advanced Cyclone Systems, S. A. (ACS) designed a settling chamber, followed by a Hurricane system with the double purpose of dust recovery and Particulate Matter (PM) emission reduction, from a sawdust rotary dryer in an industrial wood pellets production plant with 2 ton/h capacity (VIMASOL). High quality pellets are manufactured from sawdust coming from nearby sawmilling plants ...
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Long-term Sampling of Dioxin and Carbon Dioxide
New regulations such as the European “Waste Incineration BAT Conclusions” (read more on that in this blog article) call for long-term sampling of "polychlorinated dibenzo-p-dioxins and -furans" (PCCD/F), but let's call it "dioxin" for simplicity. An isokinetic sample is taken from the duct and dioxin is trapped in an absorbing material. Special material has to be used and the sampler which ...
By OPSIS AB
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Emissions Monitoring through Long-term Sampling
Emissions monitoring is often carried out by continuously operating instruments providing measurement results in close-to real time. The data can then be averaged and compared to emission limits. Using this kind of instruments is not only a possibility but often a legislative requirement. This is often the case for many of the “usual suspects” such as NOX, SO2, CO, NH3, HCl, and dust, ...
By OPSIS AB
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2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective?
2006-2016: 10 years of continuous dioxins monitoring in Italy. Which assessment for which perspective? Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF), more commonly named dioxins and furans are odorless, highly thermally stable, insoluble in water, highly liposoluble micropollutants present in traces in the environment, mainly produced during combustion with ...
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Hurricane HR System to Reduce Particulate Matter from a Biomass Boiler Burning Pellets Under 50mg/Nm3 - Case Study
Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane Cyclone System for Norbidel, a Portuguese boiler manufacturer. End customer for boiler and Hurricane is Fepsa, a company that focuses its production on felts for hats. Its underlying processes involve compression and vibration, under the action of water and heat. Norbidel, based in Maia (Porto, Portugal) is a company ...
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Hurricane Cyclones To Reduce Emissions Of Dryer Cyclones In Glowood Pellet Plant (71,839 m3/h at 87ºC) - Case Study
Foreword ACS designed and supplied a Hurricane Cyclone System to reduce PM emissions of existing dryer cyclones at Glowood Pellet Plant. The plant occupies a total area of 3.8 hectares and a total investment amounting to 10 M€. Production (100.000 ton/y) is 100% for export, as Portugal consumes under 10% of what it manufactures on a global basis (approximately 1M ton/y in 2012). A warm ...
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Particle Sampling with Isoaxial and Isokinetic Airflow
The Conditions for Data Comparison When looking at data from two different particle counters, you’ll need to know if your sampling was performed with isoaxial and isokinetic airflow. But what do these terms mean? First let’s take a look at an example. Say you’re working in an area where airflows move from top to bottom. To minimize variation between aerosol particle counts, ...
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Hurricane HR Cyclones to Reduce Particulate Matter (PM) emissions under 75mg/Nm3 from a drying Tower of Powder Milk - Case Study
Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane Cyclone System for Nestlé, the world’s leading nutrition, health and wellness company. Nestlé which is based in Linda-a-Velha (Oeiras, Portugal), has 4 production plants and 25 distribution centers spread across the country. ACS’s system was installed in the production plant of Azores, in ...
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Continuous Emission Monitoring Ensuring Cleaner Air and Better Safety
Emission monitoring refers to the on-going processes of collecting the data on the gases and components released in the air by industrial plants. In this article we will discuss the ABC of emission monitoring at a general level: What is emission monitoring? What needs to be taken into consideration when planning a well-oiled measuring process? What Is Emission Monitoring? By regular and ...
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Acceptable Particle Losses in Transport Tubing
In our previous blog, we learned about ways to mitigate particle losses in transport tubing from the sampling inlet near a critical point in a process, to the particle counter. Here we’ll learn about the ways in which some losses are there to stay. ...
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Hurricane cyclones to reduce particulate matter from a biomass boiler at Amorim Cork Composites (54.000 m3 /h a 177ºC) - Case Study
Foreword Advanced Cyclone Systems, S.A. (ACS) designed and supplied a Hurricane cyclone system for Amorim Cork Composites (ACC). ACC, based in Porto (Portugal), has grown to become the world’s largest producer and distributor of cork products. Apart from traditional bottle stoppers, the proverbial ”cork” so intimately associated with wine, the company has over the decades ...
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New laser-based dust emission monitoring system
Abstract A new generation of continuous particulate matter concentration monitoring instruments is presented, covering a measuring range of 0 to 1000 mg/m3. The laser-based scattered light instrument gives an improved stability as well as excellent resolution in the low range. This enables high concentration measurement as well as especially low emission monitoring down to 0.01 mg/m3 with a ...
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Best Particle Counter for Sampling 5.0 µm Particles
As the aerosol particle counting experts, Particle Measuring Systems (PMS) recommends against the use of 0.1 CFM particle counters to sample and monitor 5.0 μm particles. Instead, the best particle counter has a 1.0 CFM flowrate model such as the Lasair Pro Particle counter to provide an adequate sample for the detection of 5.0 μm particles. ...
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Choose the Best Methods of Particle Transport
In our previous blog in this series, we learned about the many forces that can act on a particle when it travels through tubing. Now, let’s take a look at how we can mitigate these forces on our particle data. ...
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Gasmet GT90 Dioxin+ Is an Effective Solution for Dioxin Sampling
In this article we introduce you to the world of continuous dioxin monitoring and the Gasmet GT90 Dioxin+, which is an exceptionally robust dioxin sampling system. Did you know that it was designed to sample even the lowest dioxin and dioxin-like compound concentrations in harsh industrial environments, even in subfreezing conditions? In addition to dioxins, the system is capable of measuring ...
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Dust monitoring for turbocharger at sewage treatment plant - Case Study
Customer: WWTP in Tokyo, Japan Material: Sludge flue gas dust Installation point: After dust collector Function: dust monitoring ...
By ENVEA
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