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Category > Applied Sciences Posted 07 May 2017 My Price 8.00

A nitrogen rotameter

A nitrogen rotameter is calibrated by feeding N2 from a compressor through a pressure regulator, a needle valve, the rotameter, and a dry test meter, a device that measures the total volume of gas that passes through it. A water manometer is used to measure the gas pressure at the rotameter outlet. A flow rate is set using the needle valve, the rotameter reading (phi) is noted, and the change in the dry gas meter reading (deltaV) for a measured running time (deltat) is recorded. The following calibration data are taken on a day when the temperature is 23°C and barometric pressure is 763 mm Hg. (a) Prepare a calibration chart of phi versus V std, the flow rate in standard cm3/min equivalent to the actual flow rate at the measurement conditions. (b) Suppose the rotameter—valve combination is to be used to set the flow rate to 0.010mol N2/min what rotameter reading must be maintained by adjusting the valve?

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IT KING
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Status NEW Posted 07 May 2017 11:05 AM My Price 8.00

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