mass flow metering Articles

  • Gas process automation

    Problem: Many relatively simple industrial or laboratory processes that require control of flow or pressure can be greatly improved with automation. Using a mass flow controller to control a certain gas flow rate, for instance, is far more precise and has a faster speed of response than manually adjusting a needle valve while consulting a pressure gage. Such processes can be automated ...


    By Sierra Instruments, Inc.

  • Now Measure All Flow Energy in Your Facility - One Solution - Three Metering Technologies

    Facilities managers at large facilities often have the challenging task of managing all the flow energy in their facility with the mandate from upper management to save money on energy costs. To accomplish this goal, it’s critical to get accurate flow measurement data of the flow energy in your facility such as: natural gas, compressed air, steam, chilled and hot water. ...


    By Sierra Instruments, Inc.

  • New Video: Master Your Mass Flow Control Challenges

    For over 40 years, Sierra has pioneered the development of precision gas mass flow controllers. Today, our high-performance SmartTrak lineup, with over 100,000 successful installations, proves we’ve never let up. For Lab Researchers and  ...


    By Sierra Instruments, Inc.

  • Applications guide to mass flow measurement in the chemical industry

    Today's chemical plants facc escalating costs and tightening EPA control requirements. Sierra thermal mass flow meters provide the precise, useful data plants need. They can make a significant difference in all the following applications: Greater Control of Gas Flow to Batch Reactors The flow rate of gas to a batch reaction process often varies. The reac- tion rate is high at the ...


    By Sierra Instruments, Inc.

  • Applications guide to mass flow measurement in the pharmaceutical and biotech industries

    Pharmaceutical and biorech companies can fine-tune costs, quality, and emissions if they are equipped with more effective measurement sys- tems. Sierra mass flow meters and controllers provide precise measure- ment and control designed for process industries. They can make any plant more cost-effective in the following ways: Controlling Gas Flow To Fermenters The flow of gases to ...


    By Sierra Instruments, Inc.

  • Applications guide to mass flow measurement in the pulp & paper industry

    Rising costs and tighter emission control requirements have created a need for information that is more useful and precise. Sierra thermal mass flow meters fill this need and support cost-effective mill management in die following applications: Increased Boiler Efficiency Mills need to measure the How of combustion air to the recovery or power boiler to provide accurate air flow ...


    By Sierra Instruments, Inc.

  • Applications guide to mass flow measurement in the petroleum industry

    The measurement and control of gas flows in production, refinery, and R&D operations has a direct effect on efficiency, costs, safety, and environmental standards. Sierra mass flow meters and controllers pro- vide direct, fast-response measurement at all levels, to make any opera- tion more effective. Here is a brief summary of the advantages they offer the industry. Direct, Wide-Range ...


    By Sierra Instruments, Inc.

  • Introducing ozone to water purification – Case Study

    Traditionally, chlorine has been used to disinfect water for drinking. Unfortunately, chlorine produces carcinogenic by-products called trihalomethanes (THM’s) when it reacts with organic substances in surface waters. The recent adoption of the Surface Treatment Rules by the U.S. E.P.A. places strict limits on chlorine. Because ozone produces fewer disinfecting by-products, the EPA, along ...


    By Sierra Instruments, Inc.

  • Emissions measurement - Discover a new way of particulate emissions measurement for light-duty vehicles

    New article from Sierra in Automotive Testing International Magazine entitled "Emissions Measuremen" explores how combining partial flow sampling and direct exhaust flow measurement provides an ideal solution for particulate emissions measurement from light-duty vehicles. With the phase-in of LEV-3 this year targeting a 3mg/mile PM limit, followed by a 1mg/ mile PM limit phasing-in by 2025, ...


    By Sierra Instruments, Inc.

  • Mass flow controllers give pin point accuracy – Case Study

    According to Dr. James Barry, a Benthic biologist and senior scientist at Monterey Bay Research Institue (MBARI), about a third of the human CO2 gas emissions in our atmosphere is absorbed by the ocean, making the ocean 30% more acidic than just 100 years ago—a process known as "ocean acidification." ...


    By Sierra Instruments, Inc.

  • Improve gas blending accuracy and save money – Case Study

    For DataChem Laboratories, precision mass flow is crucial. DataChem, originally established in 1973 as part of the University of Utah's Research Institute, has grown into a world respected analytical testing laboratory. They have the important job of testing and identifying harmful industrial and environmental toxins—from lead paint found on our children's toys to methamphetamine dust ...


    By Sierra Instruments, Inc.

  • Soil Air Permeability: Threshold Gradient and Anisotropy

    In this study, a triaxial confinement chamber and mass flow meter were used to measure the air permeability of compacted clayey sand specimens. Specimens were extracted at different angles with respect to the vertical direction to measure the anisotropy. The soil was compacted at high water contents below the optimum.At lower gradients, deviations from Darcy´s law were observed. Threshold ...


    By ASTM International

  • Tuning Your Boiler for EPA Boiler MACT Compliance

    The EPA’s Boiler MACT regulations are heating up. Boiler MACT is an EPA rule to limit hazardous air pollutants (HAP) from commercial and industrial boilers and process heaters. Originally proposed in 2011 as a mandate driven by the Clean Air Act,  the rules are Area Source Boiler MACT 40 CFR 63, subpart JJJJJJ for smaller boilers (stores, hotels, apartments, ...


    By Sierra Instruments, Inc.

  • Applications guide to mass flow measurement in the power industry

    Precise, timely measurement of air, fuel, and gases is one way today's utilities can take action to protect themselves against rising costs and comply with increasingly stringent environmental requirements. Sierra thermal mass flow meters and control systems are designed expressly to fill these needs. They can make utilities more cost-effective in a variety of applications: Real-Time Fuel Line ...


    By Sierra Instruments, Inc.

  • Tracking Gas Consumption, Efficiency and Costs - Case study

    Continuous gas consumption monitoring plays an important role in optimising process operating efficiency and economical allocation of resources with associated cost and energy savings. In addition, rapid detection and localisation of leaks is a vital safety issue when handling gases. CMOS Sensor Technology By using high-precision CMOS technology (semiconductor sensors) ...


    By iCenta Controls Ltd

  • Thermal protection - WWTF gets ahead of the curve with thermal mass flowmeters

    For the Santa Cruz Wastewater Treatment Facility (WWTF), dependability matters. Since 1989, this state-of-the-art WWTF, nestled in a shallow canyon in the coastal city of Santa Cruz, Calif., has been leading the way for renewable energy programs and environmental protection in the West. Santa Cruz WWTF generates its own electric power by using internal combustion engines that burn a mixture of ...


    By Sierra Instruments, Inc.

  • 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.

  • New Developments in Thermal Dispersion Mass Flow Meters

    Introduction This paper describes a newly developed microprocessor-based thermal dispersion mass flow meter that uses four temperature sensing elements in its flow sensor instead of the traditional two elements and automatically manages changes in gas selection, gas temperature, gas pressure, and outside temperature. This new mass flow meter is ideally suited for apportionment applications ...


    By Sierra Instruments, Inc.

  • Capturing biogas from landfills – Case Study

    Each day, millions of tons of municipal solid wastes are disposed of in sanitary landfills and dump sites around the world. Over 1,200 landfills worldwide collect landfill gas, which reduces greenhouse gas emissions and accrues emissions credits to meet the Environmental Protection ...


    By Sierra Instruments, Inc.

  • Lockhead advances cryogenic research - Case Study

    Lockheed Martin researches, designs, manufactures, and integrates advanced technology systems for the U.S. Department of Defense and NASA. Eric Roth, a Lockheed physicist, tests infrared sensors used for positioning systems in deep-space satellites and  super-conducting electronics. These instruments will not function at normal temperatures. Roth uses a cryogenic refrigerator to test that ...


    By Sierra Instruments, Inc.

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