For these problems, assume air behaves as an ideal gas with R=0.287kJkgK. A compressor operates at...

For these problems, assume air behaves as an ideal gas with R=0.287kJkgK.

A compressor operates at steady state and takes in air from ambient 0 kPa, gage and 200 K. The outlet pressure is 60 kPa, gage and 400 K. Determine:
1. the mass flow rate if the inlet area is 20 cm2 and the inlet pressure is -5 kPa, gage.
2. the minimum outlet temperature that is possible for this compressor.
3. the isentropic efficiency of the compressor, assuming no heat loss.
4. if there is a heat loss of 20 kJ/kg, the work required to run the compressor, and the new isentropic efficiency.

Solutions

Expert Solution

ANSWER:----

MASS FLOW RATE:--- The mass flow rate is the mass of a liquid substance passing per unit time. In other words, Mass flow rate is defined as the rate of movement of liquid mass through a unit area. The mass flow is directly depended on the density, velocity of the liquid and area of cross-section. It is the movement of mass per unit time.

Ally Wells answered 1 month ago

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