Fill in the two pressure volume diagrams shown below for a reciprocating air compressor. For air, k = 1.4. The diagram on the left has an isothermal compression process and an isothermal expansion process and the diagram on the right has an isentropic compression process and an isentropic expansion process. On both diagrams, the intake is a constan solutionspile.com

Question

Fill in the two pressure volume diagrams shown below for a reciprocating air compressor. For air, k = 1.4. The diagram on the left has an isothermal compression process and an isothermal expansion process and the diagram on the right has an isentropic compression process and an isentropic expansion process. On both diagrams, the intake is a constant pressure process at 100 kPa absolute, the discharge is a constant pressure process at 350 kPa absolute, the start of the compression process is at 3.50 m3 and 100 kPa absolute, and the start of the expansion process is at 0.5 m3 and 350 kPa absolute. Some calculations will be necessary to locate the end of each compression process and the end of each expansion process. Assume the air is an ideal gas. Assume that p2 = p3 and p1 = p4.
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Fill in the two pressure volume diagrams shown below for a reciprocating air compressor. For air,

k = 1.4

. The diagram on the left has an isothermal compression process and an isothermal expansion process and the diagram on the right has an isentropic compression process and an isentropic expansion process. On both diagrams, the intake is a constant pressure process at 100

kPa

absolute, the discharge is a constant pressure process at

350 kPa

absolute, the start of the compression process is at

3.50 m^{3}

and

100 kPa

absolute, and the start of the expansion process is at

0.5 m^{3}

and

350 kPa

absolute. Some calculations will be necessary to locate the end of each compression process and the end of each expansion process. Assume the air is an ideal gas. Assume that

p_{2} = p_{3}

and

p_{1} = p_{4}

1 ? 2 2 ? 3 3 ? 4 4 ? 1 Isothermal compression Constant pressure discharge Isothermal expansion Constant pressure intake 1 ? 2 2 ? 3 3 ? 4 4 ? 1 Isentropic compression Constant pressure discharge Isentropic expansion Constant pressure intake

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