Air, modeled as an ideal gas, is compressed at steady state from 1 bar, 300 K, to 5 bar, 500 K, with 90 kW of power input. Heat transfer occurs at a rate of 10 kW from the air to cooling water circulating in a water jacket enclosing the compressor. Neglecting kinetic and potential energy effects, determine the mass flow rate of the air, in kg/s.

0.4kg/s

Explanation:

Where

Using inlet and exit temperatures we have:

Therefore, solving for mass flow rate we use the formula:

Mass flow rate m= 0.394Kg/s

approximately 0.4Kg/s

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