What flow measuring device used in gas compressors in suction of the compressor?
607494
An orifice plate will work but in general it is not a good idea to restrict the flow to the suction of a compressors because it reduces the performance.\n\nIs this a centrifugal or reciprocating compressor? On centrifugal compressors as a part of the surge control system it is not uncommon to use a pitot tube device to see changes in flow rate. A pitot tube has very little pressure drop and since you want acfm on the suction for surge control, it makes sense to measure the flow at the suction rather than the discharge.\n\nFor reciprocating compressors there is very little reason to measure flow on the suction. It is typically measured on the discharge where the pressure is higher and pressure loss from the orifice plate is not as significant.
911209
volume is measured in liters or cubic meters
1055920
There are several techniques for measuring heat on small lab vessels. The only practical solution for larger systems (above 1 litre) however is to measure the heat gained or lost by the heating/cooling medium The idea is that you measure the mass flow and temperature change of cooling/heating fluid (plus corrections for heat loses and temperature changes). The problem with this method however is that it does not work well with tradition cooling systems. To measure heat on large systems, you need to use a cooling jacket which operates at constant flux.
507971
With a pressure gauge.
412320
"Centrifugal blowers move air by means of the centrifugal force generated by rotating a cylindrical runner on which blades have been arranged.\nCentrifugal blowers have a small outlet, which concentrates air in a single direction, and thus are used for local cooling. They also create large static pressure, making them optimal for cooling equipment through which air cannot flow easily and for airflow through ducts."
652612
An anemometer is the device that tells you how fast the wind is blowing.
44867
"In recent years, electronic testers have become available for analyzing flue gases. [...] Most electronic testers use an electro-chemical cell as the gas sensing element. A different cell is required for each gas being measured.\n\nThe most common sensor used in oxygen testers is a zirconium oxide element that develops a voltage difference across two sides if there is a difference in oxygen concentration. The zirconium oxide element has the advantage that it can be exposed to flue gases for thousands of hours."
51236
Manometers are used to measure pressure. It's basically a u-shaped tube with a liquid in the bottom (usually water or mercury) and it is sealed on one end. As the pressure increases, the liquid is pushed up into the sealed end. By graduating the tube, you can use it to measure presure.
624128
his applies only to transfer pumps since we deliberate add a gas load to the chamber and measure the quantity of gas issuing from the mechanical pump's exhaust. The method works as long as the gas chosen is not condensable, not captured in the foreline trap, does not dissolve in oil and is present in sufficient quantity to be measured.\n\nIf the mechanical pump has gas ballast, make sure it is off. Note the chamber's steady state pressure under the gas load. Put a bubble flow meter on the pump's exhaust, and measure the flow rate in cc per sec at atmospheric pressure. Using the gas in = gas out (at constant chamber pressure) principle, the gas entering must equal the measured throughput. If more precise numbers are needed, measure the exhaust gas temperature and the barometric pressure and re-calculate the quantity of gas at STP with Boyle's and Charles' law combined:\n\n(P1 x V1) / T1 = (P2 x V2) / T2\n\nExample The measured flow of gas at the pump's exhaust is 2.3 atm cc per minute from a chamber at a measured pressure of 1.4 x 10-5 torr. The exhaust gas temperature is 32°C and the barometric pressure is 750 mm Hg. What is the (corrected) effective pumping speed from the chamber?\n\n2.3 atm cc per min = (2.3/60) atm cc per sec\n= (2.3/60) x (760/1000) torr.liter per sec\n= (2.3/60)x (760/1000) torr.liter per sec at 750 torr and 32 °C\n= (2.3/60) x (760/1000) x (750/760) x (273/305) torr.liter per sec at STP\n= 0.0257 torr.liter per sec\nEffective pumping speed\n= (0.0257/1.4x10-5) liter per sec\n= 1838 liter per sec
63016
the Venturi tube is used to study the flow of liquids or gases.\nit is used in many applications, besdies the essbrej.\nhave a look at the provided links.\ngood luck
358092
Check the Omega online catalog. They have an extensive supply of measuring devices for lab, process, and manufacturing uses. Customer service is top notch.\n\nwww.omega.com
425236
I've worked with flowmeters for 20+ years and have never heard of this... what medium are you trying to measure?
488775
It is not clear if you mean a mechanical design pressure of 6 bar or a performance limit due to configuration of 6 bar. If it is a mechanical design limitation there is little you can do unless you wish to take the risk of a casing or other failure and the danger that can bring. \n\nI assume this is not a positive displacement compressor because most positive displacement compressors will produce any pressure up to the limit of the driver or the failure pressure of some pressure component. That is the reason for safety relief valves on all positive displacement compressors.\n\nCentrifugal compressors can have their discharge pressure raised my either a larger impeller or a higher speed. You might also raise the suction pressure if that is a option. On raising the speed you must be careful that you do not run into a critical speed or a torsional vibration problems. \n\nHave you talked with the manufacturer? Sometimes they can provide help.
476568
Fix a baloon to the out let of compressor, this will give you the volume of air filled in a particular time. Now dip the baloon in a container of water and measure the volume of air in baloon. Divide the volume of air by time that gives you the flow. The volume of baloon can be best measured by difference in volume of water in a container.
580210
Most fluid flow handbooks have this information. The Foxboro company use to have the very best manual for this.You might find one on ebay. Many thermodynamics text books also have this information.
997515
vernier callipers \nmeasuring weights\nmagnet bars\nIC tester\nvoltmeter\nammmeter\nenergy meter\nMultimeter\nDC Power Supply \nFunction Generator \nDigital Multimeter \nOscilloscope \npower wires\nBreadboard\nresitors \ncapacitors\nvoltage divider and current divider circuits
187732
Rheometer measures samples above boiling point. \n\nThe Sealed Cell measures viscoelastic rheological properties of solutions without loss of volatile components. Enabling measurements under pressure with full dynamic oscillation and viscometric capability, system has frictionless air-bearing seal that permits dynamic oscillatory testing throughout frequency range of rheometer. Product can also test pastes and semisolid materials at elevated pressures and temperatures utilizing parallel plate measuring system.