Mass Flow Monitoring Articles

  • A Tale of Two Thermals: Capillary & Immersible

    About: The Core Technology White Paper Series is a four part series detailing the flow technologies that allow Sierra to offer a flow solution for nearly any gas, liquid and steam application. Part 1 focuses on Sierra’s two types of thermal mass flow technologies for gas mass flow measurement and control—Capillary Thermal & Immersible Thermal. Part 2 will focus on our ...


    By Sierra Instruments, Inc.

  • Flare gas mass flow metering innovations promise more economical choices

    INTRODUCTION As the drive towards energy independence in the United States continues at full speed, oil and gas companies are turning to hydraulic fracturing to increase production. Increasingly stringent state and national regulations for flare gas in particular now require the installation of mass flow measurement instruments to measure waste and excess gases burned off as a result ...


    By Sierra Instruments, Inc.

  • The advantages of multivariable Vortex flowmeters

    Faced with less time and personnel to devote to an increasing range of control and measurement problems, engineers must often weigh the cost of inaccuracy against the initial and maintenance costs of flowmeters. This demand for higher accuracy and lower cost over the lifetime of the device is driving the development of enhanced functionality. Most of the recent innovations in flowmeter ...


    By Sierra Instruments, Inc.

  • High voltage switchgear SF6 maintenance – Case Study

    Just like the main circuit breaker in your home, city grids have main on/off switches called switchgears. When these high voltage switchgears open or close, huge "lightning-like" arcs of electricity are created. If not maintained correctly, these sparks can causewidespread power outages and pose a safety risk. To avoid these dangerous sparks, power companies have traditionally filled the sealed ...


    By Sierra Instruments, Inc.

  • Maximizing bioreactor performance - Case Study

    Paul Sauer, Associate Scientist of Protein Design Lab's Cell Culture Development Group, had two compelling reasons for specifying mass flow controllers for his work: The first was the need to acquire an array of data that would allow them to more effectively control fermentation processes; The second was the need to minimize the formation of foam in the bioreactor's headspace. To minimize foam, ...


    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.

  • Inspired innovation

    As the drive towards energy independence in the US continues at full speed, oil and gas companies are turning to hydraulic fracturing to increase production. Increasingly stringent state and national regulations for flare gas in particular now require the installation of mass flow measurement instruments to measure waste and excess gases burned off as a result of the hydraulic fracturing process. ...


    By Sierra Instruments, Inc.

  • Tuning combustion ratios in the field - Case Study

    For a major European gas manufacturer, the burner control systems in their power generators had long relied on three different technologies for natural gas mass flow measurement. These included a rotameter with integrated microprocessor to calculate  density, a turbine meter with a fixed correction factor, and a thermal mass flow meter. The rotameter's poor rangeability (1:3) and fixed ...


    By Sierra Instruments, Inc.

  • Researchers create Martian environment - Case Study

    The pressure on Mars is less than one percent of what it is on Earth. The research of the Controlled Environment System Research Facility (CESRF) at the University of Guelph in Ontario, Canada includes evaluation of plant growth under these low pressures. In their studies of biological life support for future space exploration, their experiments utilize eight closed-loop hypobaric chambers. Each ...


    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.

  • Optimizing air flows to aeration basins – Case Study

    As a result of clean energy mandates and the rising cost of energy, wastewater treatment facilities around the country are retrofitting their instrumentation to run highly efficient, cost-effective, clean facilities. To reduce emissions and produce clean energy, solid wastes are often digested in large digester tanks to reduce the volume of waste (sludge) and produce more biogas, which is then ...


    By Sierra Instruments, Inc.

  • Reducing the threat of carbon soot – Case Study

    The U.S. government now recognizes that black carbon soot is the number two cause of climate change and the most important component of air pollution affecting our public health. This soot, caused mainly by the burning of fossil fuels and firewood, is often found in huge smog-like plumes known as "atmospheric brown clouds." According to a report commissioned by the U.N. Environment Program, this ...


    By Sierra Instruments, Inc.

  • Bringing precision to steel production - Case Study

    Aluminum and steel manufacturers use mass flow controllers to inject purification, stirring and shielding gases into their melting, casting and annealing processes. Precise, automated gas flow control reduces toxic emissions and material costs.  Final purification of aluminum is accomplished by bubbling a mixture of argon and chlorine gases through the molten metal. This process separates ...


    By Sierra Instruments, Inc.

  • Conforming to GHG reporting rules – Case Study

    In 2011, a new EPA rule (40 CFR Part 98) went into effect requiring a wide range of companies that emit Green House Gases (GHG) to submit annual reports to the EPA. These were primarily large facilities emitting 25,000 metric tons of carbon dioxideequivalent (mtCO2e) or more of GHG emissions per year. ...


    By Sierra Instruments, Inc.

  • Process gas mass flow controllers - An overview

    A mass How controller (MFC) is used 10 control the How of gases in a wide range of microelectronic processes. A well-designed MFC maintains a constant tlow within I percent of the full-scale flow, has a repeatability of 0.2 percent of full scale, and has a response time of 1 second to reach within 2 percent of the desired (command) flow, all of this is in response to any changes in command flow. ...


    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.

  • Smart compressed air measurement - Case Study

    Air may be free, but compressed air certainly isn’t. Every day, leaks and inefficient compressors cost companies money and lead to more electricity usage. As air  compressors churn away 24/7, endlessly maintaining the air pressure in compressed air distribution lines, dollars leak away from the bottom line. Measuring compressed air can be a big challenge. In many manufacturing ...


    By Sierra Instruments, Inc.

  • Duplicating the conditions of the body - Case Study

    For centuries, folklore has recognized that garlic is a cure-all, preventing heart disease, high cholesterol, diabetes, and high blood pressure. With the help of Sierra, Dr. David Kraus, a seasoned Sulfide Biologist, and his team at the University of Alabama at  Birmingham have demonstrated just how garlic derived compounds produce Hydrogen Sulfide (H2S) and can relax the vessels in our ...


    By Sierra Instruments, Inc.

  • Air usage data increases company profit - Case Study

    A large American container company required mass flow meters on their air compressor lines to help evaluate the efficiency of blow mold machines in their plant. The manufacturer melts PET chips and extrudes them through blow mold machines to produce plastic bottles for the beverage industry. Plant engineers need data on compressed air usage to help them reduce utility and production costs. Four ...


    By Sierra Instruments, Inc.

  • Producing biogas from solid wastes – Case Study

    Santa Cruz Wastewater Treatment Facility, located in Santa Cruz, California, generates the majority of its own electric power by using internal combustion engines that burn a mixture of methane gas produced by the sewage digestion process and purchased natural gas. Combined, they producing 7.4 million kWh of electric power per year. Producing abundant, healthy amounts of biogas each day in their ...


    By Sierra Instruments, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you