Gas Flow Monitoring Articles

  • Direct Mass Flow or Volumetric: The Thermal Flow Meter Technology Advantage!

    In today’s world where everyone is watching the bottom line, you need high performance, cost-effective instrumentation—and capillary thermal mass flow meters and controllers have been proven to meet this criteria in a wide range of process applications. Thermal mass flow technology is an industry standard for mass flow control of gases because it measures flow directly, at the ...


    By Sierra Instruments, Inc.

  • Case study - HOTAB, Norway

    Hotab chose Envibat’s flue gas condensation in its boiler plant, delivered to Statkraft , Sandefjord in Norway. The plant is built on lamella technology providing a compact design while performing good temperature efficiency. Boiler size: 2×4 MW Fuel: Biofuel Envibat has supplied a condensor for Air Pollution Control for flow gases ...


    By Envibat AB

  • Holcim Ste. Genevieve Cement Plant - Case Study

    Big and beautiful The new cement manufacturing facility of Holcim (US) at Ste. Genevieve with a production capacity of four million tonnes per year went on stream mid-2009 and is one of the most environmentally-efficient cement plants in the Holcim Group. It is 40 percent more energy-efficient than the Holcim (US) plants that were closed in 2009 and emits 10 to 25 percent less ...

  • Primary Standard Gas Flow Calibration—The Only Guarantee of Accuracy

    At Sierra, we have a saying: “An instrument’s accuracy is only as good as its calibration.” The accuracy of your mass flow controller (MFC) is essential in assuring the efficiency, performance, and quality of your flow meter. In many cases, if your instrumentation is not calibrated, then a decline in performance is possible due to ...


    By Sierra Instruments, Inc.

  • Gas Mass Flow Control: Why Thermal Mass Flow Technology is Recommended for Best Accuracy!

    It’s no secret. Price, but perhaps more importantly, performance, drive every new product acquisition you make.  How important is measurement accuracy and control to your lab experiment or industrial process? It’s critical.  If your flow readings are off or the flow is not controlled with precise accuracy your research is compromised, product quality suffers, and processes ...


    By Sierra Instruments, Inc.

  • Recapping the Debate Over Whether Low-Carbon Economies Are Good for Tech

    To be of any use, tech products need power from electrical outlets, stored chemical energy such as batteries and generators, solar collectors, kinetic energy like my emergency hand-crank radio/charger, or other means. As more global and local regions move away from fossil-fuel-based power to low-carbon renewable power, I wonder how my colleagues in the tech industry would weigh in on a debate ...


    By Antea Group - USA

  • Enhanced separation of hop oils by flow-modulated GC×GC–TOF MS with Tandem Ionisation

    Beer contains hundreds of organic ingredients, with concentrations spanning many orders of magnitude, and including monoterpenes (C10) and sesquiterpenes (C15). These are aroma-active hydrocarbons found in the essential oils of various plants, including hops, and provide much of the characteristic ‘bitterness’ of the finished beer. Of the greatest importance for beer is the ...


    By SepSolve Analytical

  • Detailed characterisation of essential oils by flow-modulated GC×GC and Tandem Ionisation mass spectrometry

    Volatile oils of plants, also known as essential oils, have been used for many years for their flavour, fragrance and medicinal properties. However, their extreme complexity and diversity presents analysts with a significant challenge when it comes to quality control. They are generally composed of monoterpenes and sesquiterpenes, as well as their oxygenated derivatives, such as aliphatic ...


    By SepSolve Analytical

  • Eliminate Degassing When Measuring Viscosity of Compressor Oils

    Compressor oils can create unique challenges when trying to measure viscosity. Dissolved gases from refrigerants, in particular, tend to bubble out when these oils are measured using traditional viscometers. This can create errors in the measurement, typically causing readings to be much lower than they should be. One way to get around this problem is to allow the oil ...


    By Spectro Scientific

  • Providing Precision Flow Control Solutions for Critical Biomolecular Research

    When scientists at the University of Nottingham’s Centre for Biomolecular Sciences (CBS) in the United Kingdom needed instrumentation to control the flow of gases in their research, they turned to Litre Meter, a UK distributor for Sierra Instruments, and the SmartTrak 100 series mass flow meters and ...


    By Sierra Instruments, Inc.

  • The Challenge AER-200 Respirqmeter System for anaerobic applications

    The CHALLENGE AER-200 Respirometer System consists of one or more biological reaction vessels, gas flow measuring cells, and a computer. The gas measuring base contains eight flow cells and associated interconnecting circuitry. As gas flows through each cell under the influence of a slight pressure caused by gas production in the reaction vessel, bubbles of a fixed volume are formed in the lower ...


    By Challenge Technology

  • Measuring and interpreting gas flow from landfill boreholes case study

    Current landfill gas measurement practice for measuring the gas composition is well understood, and there are standard procedures and instruments available to analyse the gas. It is also current recognised practice to measure the gas 'flow' from boreholes to monitor the production of gas in a landfill site. If care is taken to make the measurement in the same way each time, changes in the ...


    By Geotech

  • Groundwater: Low-flow Purging and Sampling

    Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource.  Maintaining its quality and quantity and avoiding pollution are set to be ...


    By Geotech

  • Eionet priority data flows, May 2014 - April 2015

    Overall approach for scoring The evaluation of the overall country performance is based on simple scoring rules: for each data flow, the maximum score is 3 points and the minimum score is – 1 point (see the detailed evaluation criteria on pages 8–17 in this report). Scores from all priority data flow areas are summed up for each country and then expressed as a percentage of ...

  • Coop Mineraloel Profits from Integrated Solution with OpenTAS® and SAP® OGSD case study

    “With the introduction of SAP® and OpenTAS®, we have achieved a level of automation for the business processes that enables us to further pursue our growth within the gas station market.” This is the positive verdict of Walter Eberle, director of Coop Mineraloel AG (CMA) in Allschwill. CMA assigned Implico with the integration of all the logistical processes concerning the gas ...


    By Implico Group

  • Cement and Lime Kilns case study

    Cement and Lime Kilns PROCESS DESCRIPTION Cement, lime and gypsum manufacturing processes have in common the mixing of inorganic minerals calcined at high temperatures typically using rotary kilns (vertical kilns are also used). CEMENT Regular Portland cements are the usual products for general concrete construction. The raw ...

  • Measurement of Sulfur in Refinery Flare Gas Streams for Compliance with EPA SubpartJ(a) Regulations

    The Challenge Measurement of high range and low range H,S in refinery flare gas streams for compliance with EPA regulation NSPS Subpart J(a). The rule has placed an extra investment and operational burden on petroleum refineries to meet the regulatory requirement. AMETEK offers an economical solution to meet the challenge with an emphasis on lower capital and operating cost along with ...

  • The Need to Clearly State the Reference Temperature and Pressure Conditions when Reporting Gas Volumes or Volumetric Flow Rates

    In the physical sciences, such as chemistry, the standard temperature and pressure (STP) is a set of conditions for experimental measurements that enables true comparisons between sets of data representing gas volumes. There are many different definitions of standard temperatures and pressures applicable to gas volumes and volumetric flow rates. The differences depend on the organization defining ...


    By F&J SPECIALTY PRODUCTS, INC.

  • Non-contacting solution for Plugged off flow meters in the oil patch - Case Study

    For years Petrobakken Energy Ltd. used inline turbine flow meters to track the flow rate of oil recycled to treaters. But with a high concentration of wax and sand in the oil, the turbine meters were quickly plugging off. The line had to be shut down at least once a day and the turbine flowmeters disassembled for cleaning. This was troublesome and expensive. Petrobakken knew there had to be a ...


    By Greyline Instruments Inc.

  • Flow measurement technology comparison: GA5000 Vs Hot Wire Anemometer

    A typical landfill or contaminated land site under investigation will comprise of a suitable number of gas monitoring wells, with a planned series of monitoring visits.  The monitoring will include gas flow measurements, which together with methane and carbon dioxide concentrations will be used to calculate gas screening values (GSV) and hence allow the determination of whether any gas ...


    By Geotech

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