Question: Approximately 150SCFM (standard cubic feet per minute) of nitrogen is required by a process facility. As shown in the diagram below, plans call for supplying

Approximately 150SCFM (standard cubic feet per minute) of nitrogen is required by a process facility. As shown in the diagram below, plans call for supplying the facility from a tank of liquid nitrogen (SG = 0.81) at its normal boiling point (?350?F) and 1 atm. Nitrogen vapor leaves the tank and is compressed and heated to obtain the desired conditions, 150?F and 600psia.

(a) Using the generalized compressibility charts, determine the volumetric flow rate of nitrogen delivered from the heater.

(b) What would the required minimum tank size be if deliveries are made to the site no more frequently than every two weeks?

Compressor Heater Liquid nitrogen SG = 0.81 600 psia 150F

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