gas controller Articles

  • Advances in gas control technology in the brewery

    The use of nitrogen as a process gas, foam enhancer and flavour modifier has come to the fore over the last 10 years, with dissolved gas specifications becoming more stringent. Increasingly, marketing and consumer requirements for a targeted product identity or image have to be met, not only for taste but, perhaps equally as importantly for the consumer, presentation. This has resulted in ...

  • Comparative analysis of modern control and AI–based control for maintaining constant ambient temperature

    The objective of this paper is to study various control techniques in order to maintain constant ambient temperature by controlling the position of gas solenoid valve and expansion valve that control the volume of gas flow to the burner and volume of cool air flow into the room. In order to control the room temperature conventional P, PI, PID, model reference control (MRC), fuzzy logic control ...


    By Inderscience Publishers

  • Thermal spray gas flow control

    How to Achieve a Consistent Flame and Avoid Problems High Velocity Oxygen Fuel (HVOF) thermal spray technology has evolved and advanced recently through the use of more sophisticated controls and design. In particular, the ignition and control of the flame has benefited from the use of actively controlled flow rates which deliver steady, consistent, and programmable flame characteristics and gas ...

  • Minute Flow Tip! Don’t Settle for “Good Enough

    The capillary thermal technology used in every SmartTrak mass flow controller measures flow directly, at the molecular level. In essence, counting and controlling every gas molecule flowing through the instrument to achieve unmatched precision. Unaffected by upstream gas temperature and pressure fluctuations, gas mass flow control is direct and ...


    By Sierra Instruments, Inc.

  • Gas flow control method of recycling gas drilling technology

    Recycling gas drilling is a new drilling technology. The paper based on the theory of gas transient flow, a set of theoretic models of gas flow control at the export of annulus are set up in combinations of the principles of the seepage flow mechanics and the characteristics of recycling gas drilling technique. According to the basic laws which the flowing gas should comply with, the properties ...


    By Inderscience Publishers

  • Eridania (ITA) Agricultural Plant - Case Study

    Digester: 3.250 m³ beet chips, corn 1 x 999 kWel scope of delivery: detailed design, agitators, gas handling equipment, instrumentation, control, plant start-up Start-up: ...

  • Biomedical research looks to thermal mass flow controllers

    Precision control in biomedical research is critical for the success of any experiment. This is especially true for gas mixing and blending applications. These gas mixing applications often involve the creation of artificial atmospheres or other gas mixtures. To get statistically sound results, scientists must achieve precision flow control in creating these mixtures for sensitive experiments. In ...


    By Sierra Instruments, Inc.

  • Greenhouse Gas Emissions Control

    Most of the time, people think about Greenhouse Gas (GHG) emissions with carbon dioxide, which is the most common of the GHGs. While fairly typical, carbon dioxide isn’t the only GHG U.S. Environmental Protection Agency (EPA) regulates. Since EPA has begun regulating GHG emissions under its Clean Air Act authority, sources of emissions from others may require add-on air pollution control ...

  • How to Attain Precise CO2 Injection in the Carbonated Beverage Production Process

    Looking for the perfectly carbonated beverage? Is your CO2 injection process leaving your drinks flat? Industrial mass flow controllers offer the perfect solution for controlling the exact CO2 injection into beverages to create the perfect foam for the beer industry or carbonation for popular soft drinks. It is pivotal that carbonated beverage manufacturers have the ability control the exact ...


    By Sierra Instruments, Inc.

  • Mass Flow Control in Bioreactors - Case study

    Vogtlin mass flow controllers are an excellent tool for precise control of gas flows in bioreactors. Bio reactors are used for critical and delicate processes where mass flow control of relevant gases need to be reliable, repeatable and flexible. For example, the dissolved oxygen needs to be carefully controlled to obtain repeatable pH control and volumes of fermentation gases like CO and H2 ...


    By iCenta Controls Ltd

  • Quality Leader in Thermal Analysis depends on Axetris Mass Flow Solutions - Case study

    Pushing the limits of Thermal Analysis using Axetris MFCs An international quality leader for Thermal Analysis solutions relies on Axetris mass flow controllers (MFCs) and has done so for many years. Axetris mass flow solutions help maximize performance while using analysis techniques such as Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). Accurate and ultrafast ...


    By Axetris AG

  • Utilisation of Municipal Solid Waste Compost as landfill cover soil for reducing greenhouse gas emission

    Municipal Solid Waste Compost (MSW-C) was introduced for improving landfill cover soil properties and enhancing methane oxidation. The landfill cover soil was irrigated with leachate for maintaining appropriate moisture content for methane oxidation reaction. It was found that MSW-C was an effective landfill cover material for landfill gas emission control exhibiting the highest Methane Oxidation ...


    By Inderscience Publishers

  • 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 Systems Integrators/OEMs, SmartTrak is often called the Swiss Army Knife of gas mass flow controllers. Find out why in our new video. The SmartTrak ...


    By Sierra Instruments, Inc.

  • How to analyze H2S, all Mercaptans, THT as well as total sulfur for monitoring natural gas or gaseous fuels in metering station?

    Natural gas is colourless and odourless in its most pure form. When extracted, it can contain sulfur compounds such as H2S and Mercaptans that when in the presence of moisture can produce sulfuric acid that can degrade the pipeline. So for reasons of public safety as well as pipeline integrity, there is a need to measure and control precisely the level of odorant species in natural gas : ...


    By Chromatotec Group

  • Repeatability is King: Up to Tenfold Improvement

    Axetris has improved the repeatability specifications of its mass flow meters and controllers. Repeatability often more important than absolute accuracy Repeatability provides information about the precision, that is, the absolute difference between a pair of repeated test results measured by one instrument under unchanged conditions. To measure precision, the same procedures are used under the ...


    By Axetris AG

  • Applications guide to mass flow measurement in the primary metals

    Mass flow meters can provide precision measurement and control of proccss gases in many phases of plant operation. They make processes more repeatable and provide greater control over quality and costs. Sierra mass flow meters were designed for these purposes. They can make any plant more cost-effective in several ways: Aluminum Purification: Automated Gas Flow Control The last step before ...


    By Sierra Instruments, Inc.

  • Gas Blending and Working With Flow Ratios –Part B

    What is the right way to deliver precise ratios of gas flows? Many applications require a fixed ratio of two or more gas flows. Setting each of the flows independently is certainly one approach. But in cases where you need to change the total flow while keeping the ratio constant, the “set each flow” procedure becomes cumbersome. So for applications like combustion control, gas ...

  • How to pick a good generator

    Cylinders and Dewar tanks are extremely inconvenient and costly to replace, but they also come with some safety risks. Now, more and more laboratories are beginning to use gas generators to replace those cylinders or their liquid nitrogen, because generators are both safe and convenient. However, there are many different generator brands on the market, making it difficult to tell the ...

  • Nonthermal Plasma Applications to the Environment: Gaseous Electronics and Power Conditioning

    Abstract—For nearly two decades, interest in gas-phase pollution control has greatly increased, arising from a greater respect for the environment, more attention to the effects of pollution, and a larger body of regulations and laws. Nonthermal plasma (NTP) technology shows promise for destroying pollutants in gas streams and cleaning contaminated surfaces, using plasma-generated reactive ...

  • Influences of temperature and moisture on coal sorption characteristics of a bituminous coal from the Sydney Basin, Australia

    Accurate testing of coal isotherms plays a significant role in the areas of coal seam gas drainage, outburst control, CO 2 geo-sequestration, coalbed methane (CBM) and enhanced coalbed methane recovery (ECBM). Coal isotherms were tested with CO 2 and CH 4 gases with a modified indirect gravimetric method in the University of Wollongong (UOW), Australia. The adsorption capacity of coal ...


    By Inderscience Publishers

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