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Estimate the change in absolute pressure from inlet

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Q: Refrigerant 22vapor enters the compressor of a refrigeration system at an absolute pressure of 20lbf/in2 a pressure gage at the compressor exit indicates a pressure of 280lbf/in2 (Gage) the atmospheric pressure is 14.6lbf/in2 determine the change in absolute pressure from inlet to exit, in lbf/in2, and the ratio of exit to inlet pressure.

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Mechanical Engineering: Estimate the change in absolute pressure from inlet

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