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A Rotameter is a device that measures the flow rate of liquid or gas in a closed tube. It is occasionally misspelled as "rotometer." It belongs to a class of meters called variable area meters, which measure flow rate by allowing the cross-sectional area the fluid travels through to vary, causing some measurable effect.
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Rotameter is used for measurement of?
It is used to measure the rate of flow of liquid & glasses
What is the rotameter orificemeter venturi meter pitiot tube i want to question related to these and answers?
AnswerThese are used to measure flow rate.Orifice PlateWith an orifice plate, the fluid flow is measured through the difference in pressure from the upstream side to the downstream side of a partially obstructed pipe. The plate obstructing the flow offers a precisely measured obstruction that narrows the pipe and forces the flowing fluid to constrict.The orifice plates are simple, cheap and can be delivered for almost any application in any material.The TurnDown Rate for orifice plates are less than 5:1. Their accuracy are poor at low flow rates. A high accuracy depend on an orifice plate in good shape, with a sharp edge to the upstream side. Wear reduces the accurVenturi TubeDue to simplicity and dependability, the Venturi tube flowmeter is often used in applications where it's necessary with higher TurnDown Rates, or lower pressure drops, than the orifice plate can provide.In the Venturi Tube the fluid flowrate is measured by reducing the cross sectional flow area in the flow path, generating a pressure difference. After the constricted area, the fluid is passes through a pressure recovery exit section, where up to 80% of the differential pressure generated at the constricted area, is recovered.With proper instrumentation and flow calibrating, the Venturi Tube flowrate can be reduced to about 10% of its full scale range with proper accuracy. This provides a TurnDown Rate 10:1.Variable Area Flowmeter or RotameterThe rotameter consists of a vertically oriented glass (or plastic) tube with a larger end at the top, and a metering float which is free to move within the tube. Fluid flow causes the float to rise in the tube as the upward pressure differential and buoyancy of the fluid overcome the effect of gravity.The float rises until the annular area between the float and tube increases sufficiently to allow a state of dynamic equilibrium between the upward differential pressure and buoyancy factors, and downward gravity factors.The height of the float is an indication of the flow rate. The tube can be calibrated and graduated in appropriate flow units.The rotameter meter typically have a TurnDown Ratio up to 12:1. The accuracy may be as good as 1% of full scale rating.Magnetic floats can be used for alarm and signal transmission functions.Pitot TubesThe pitot tube are one the most used (and cheapest) ways to measure fluid flow, especially in air applications as ventilation and HVAC systems, even used in airplanes for the speed measurent.The pitot tube measures the fluid flow velocity by converting the kinetic energy of the flow into potential energy.The use of the pitot tube is restricted to point measuring. With the "annubar", or multi-orifice pitot probe, the dynamic pressure can be measured across the velocity profile, and the annubar obtains an averaging effect.
What is the calibration curve for rotameter?
A calibration curve for a rotameter is a graphical representation showing the relationship between the flow rate of a fluid passing through the rotameter and the corresponding reading on the rotameter display. This curve is generated by calibrating the rotameter with known flow rates and correlating them with the rotameter readings. It helps in accurately determining the flow rate of a fluid based on the rotameter reading.
What is a type of flow meter that must be oriented in a vertical position?
Rotameter
Why the rota-meter is vertically upward not horizontally in the experiments?
The float in rotameter is lifted by the liquid. Rotameter is calibrated for particular liquid or gas with its exact density. if we mount it horizontally float will not come to its original place.
How do you read a rotameter?
To read a rotameter, look at the position of the float inside the tube. The flow rate is indicated on the scale where the float is positioned. The number on the scale closest to the center of the float is the flow rate being measured.
Rotameter is used for measurement of?
It is used to measure the rate of flow of liquid & glasses
Why fluid flow randon direction in rotameter?
A rotameter is a type of device that is used to measure the flow rate that a liquid or gas will produce inside a closed tube. The fluid will move in a random direction depending on how it is turned due to gravity.
Why the rotameter is tapered?
to create annular area so that the diff. pressure can be kept constant.
Use of rotameter with needle valve?
A rotameter is a device used to measure the flow rate of a fluid in a system by observing the position of a float within a tapered tube. By adjusting a needle valve in conjunction with a rotameter, you can control the flow rate of the fluid passing through the system by manipulating the opening size of the valve, which can be beneficial in applications where precise flow control is required.
What is the effect of the fluctuations of the float of rotameter?
Fluctuations in the float of a rotameter can affect the accuracy of flow measurement by causing variations in the reading. This can be due to changes in the buoyancy of the float or turbulence in the flow affecting its movement. It's important to minimize these fluctuations to ensure precise flow measurement.
Why are rotameter is always tapered in shape?
so that there is a linear relationship between the flow rate and position in the float within the tube.
What are some nine letter words with 2nd letter O and 6th letter E and 9th letter R?
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 36 words with the pattern -O---E--R. That is, nine letter words with 2nd letter O and 6th letter E and 9th letter R. In alphabetical order, they are: bolometer bolsterer boulderer boxkeeper cocklebur completer complexer conquerer conqueror counselor cowfeeder dosemeter dosimeter focimeter focometer hodometer howsoever jobseeker journeyer konimeter lobsterer moistener monometer nonviewer potometer poulterer roisterer rotameter roysterer sonometer tonometer toughener tourneyer voltmeter volumeter zookeeper
What are some nine letter words with 2nd letter O and 5th letter M and 6th letter E?
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 39 words with the pattern -O--ME---. That is, nine letter words with 2nd letter O and 5th letter M and 6th letter E. In alphabetical order, they are: bodements bolometer bolometry bonemeals columella cornmeals documents dosemeter dosimeter dosimetry focimeter focometer foremeans foremeant hodometer hodometry horometry iodometry konimeter lodgments moniments monomeric monometer monuments movements oogametes podomeres polymeric poromeric potometer rotameter sonometer sortments tonometer tonometry voltmeter volumeter volumetry woodmeals
