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Mass Flow Measurement

Mass Flow Measurement
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THERMATEL® MASS FLOW MEASUREMENT

Magnetrol TA2 thermal mass flow transmitters measure mass flow by detecting heat dissipation from a heated surface. Thermal flow meters measure flow rate in units of mass flow (SCFM or NM1 2 3 4/hr) rather than flow at operating conditions. Because temperature and pressure variations will influence the gas density, mass flow measurement provides optimum measurement accuracy despite temperature and pressure variations. In addition to greater measurement accuracy, mass flow is also measured to accommodate an industry's measurement standards. Chemicals react on the basis of mass relationships...

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TA2 SPECIFICATIONSSupply Voltage: Flow Range: Flow Accuracy: 100 - 264 VAC, 50 - 60 Hz Temperature Accuracy: 11.6-30 VDC Repeatability: 10-50,000 SFPM (0.05-250 Nm/s) (gas dependent) Sensor Range: -50° to +400° F (-45° to +200° C) ±1 % of reading plus 0.5% of calibration range Turn Down: Insertion (left) or In-Line style (above) Integral or Remote: All electronics are housed in a compact, explosion-proof enclosure mounted on the probe or at a remote location. Display: Optional two-line, 16 digits/line, alphanumeric backlit display module with four-button keypad for easy configuration....

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Principle of Operation TA2 thermal mass flow transmitter technology for measuring mass flow. The TA2 uses the proven Constant Temperature Difference Technology for mass flow measurement. There are two elements in the sensor as shown on page 2. The RTD in the reference pin measures the process temperature of the gas where the sensor is located; a variable amount of power is applied to the heater in the second pin to maintain a specified temperature difference. The amount of the temperature difference is set during the calibration to optimize the performance for the particular application. At...

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Mass Flow of Air Applications: The flow of air (78% nitrogen, 21% oxygen and traces of eight other gases) is monitored in nearly all industrial settings, including applications for processing; air/gas mixing; cooling; blowing & drying; combustion; aeration; ventilation; filtration; ingredient mixing; air sampling, and many others. Significant airflow variables include pipe diameters, wide flow ranges, varying velocities and low flow sensitivity. Large-duct flow applications for Thermatel include combustion air flow used in determining fuel-to-air mixtures for industrial boilers, heaters,...

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Compressed Air Flow Applications: Air that is compressed and contained at a pressure greater than atmosphere has become industry’s universal power source. Seventy percent of all manufacturers operate compressed air (CA). Process operations dependent upon CA include pneumatic tools; materials handling; painting; oxidation; fractionation; cryogenics; refrigeration; dehydration; filtration and aeration. Flow meters help ensure efficient operation at rated SCFM output and are also used to detect leaks. A Flow Meter with a Totalizer provides an accurate measurement of CA consumption. TA2...

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Natural Gas Flow Applications: Natural gas is a mixture of hydrocarbon gases, primarily (70-90%) methane (CH4). In its pure form it is colorless, odorless and combustible. The cleanest burning fossil fuel, natural gas trails electricity as the second most used energy source in industry. Industrial demand accounts for 40 percent of total natural gas demand, the highest of any sector. With a multitude of industrial uses, natural gas is consumed primarily in pulp and paper; metals manufacture; power generation; petroleum refining; stone, clay and glass manufacture; chemicals production;...

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Degasification Heat Transfer Bulb Media Thermal Media Argon Lasers Arc, Tig, Mig Welding Filler Gas Gas-plasma Treating Spectrometry Cryoablation • Treating, Welding, Annealing • Hydrodesulfurization • Catalytic Cracking • Vitamin Manufacturing • Oxidation Preventative • Hydrogenation of Fatty Acids • Carrier Gas • Generator Coolant • Rocket Fuel, Fuel Cells • Making NH3, CH3OH, H2O2 Argon Gas Flow Applications: Composing slightly less than 1% of the air, Argon (Ar) is a colorless, odorless, tasteless, noncorrosive, nonflammable, and nontoxic gas. It is the most abundant of the “rare”...

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Oxygen Gas Flow Applications: Oxygen (O2) is the second-largest volume industrial gas. Because it forms compounds with virtually all chemical elements it is most often bound with other elements in silicates, oxides, and water compounds. Oxygen is highly oxidizing and reacts vigorously with combustible materials generating heat in the reaction process. Ozone (O3) is an allotropic form of oxygen that is more reactive. Oxygen finds numerous uses in steelmaking and metals refining; chemicals and pharmaceuticals; petroleum processing; glass and ceramic manufacture; pulp and paper manufacture;...

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• MIG/MAG Welding Shield • Casting Mold Hardening • Dry-Ice Feed • Urea, Methanol Production • Oil Extraction Well Priming • Flash Removal • Dry Ice & CO2 Coolant • Beverage Carbonation • Blanketing Agent • Fertilizer Processing Vent Lines Waste CO2 SO2 Off-Gas Flare Stacks, Headers Flue Gas Waste-to-Energy Gas Waste Flow Mixing Flare Gas Recovery NC Gas Disposal Carbon Dioxide Gas Flow Applications: Carbon dioxide (CO2) is an odorless, colorless, non-combustible and slightly toxic gas with a pungent acidic taste. It constitutes a fraction of our air, about 0.036%. Carbon dioxide is valued...

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LFG, Digester & Bio-Gas Applications: These gases are typically composed of 65% methane (CH4) and 35% carbon dioxide (CO2). Landfill gas (LFG) is generated from the degradation of biodegradable wastes. Digester gas results from the anaerobic decomposition of organic matter in municipal wastewater treatment. Bio-gas is created from livestock production, agricultural and industrial effluents and sewage treatment. Flaring and venting as management strategies for these gases is giving way to energy harvesting technologies with the economic advantage of creating heat, electricity, fuel or...

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Mass Flow Measurement 12Pages

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Mass Flow Measurement
12Pages