Question: A 0.66 specific gravity gas flows from a 2-in pipe through a 1.5-in orifice-type choke. The upstream pressure and temperature are 600 psia and

A 0.66 specific gravity gas flows from a 2-in pipe through a

A 0.66 specific gravity gas flows from a 2-in pipe through a 1.5-in orifice-type choke. The upstream pressure and temperature are 600 psia and 75 F, respectively. The downstream pressure is 200 psia (measured 2 ft from the orifice). The gas-specific heat ratio is 1.3. Consider Orifice choke coefficient as 0.75. (i) What is the expected daily flow rate? (ii) Does heating need to be applied to assure that the frost does not clog the orifice? (iii) What is the expected pressure at the orifice outlet?

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