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Anton [14]
3 years ago
6

An air compressor compresses 6 L of air at 120 kPa and 22°C to 1000 kPa and 400°C. Determine the flow work, in kJ/kg, required b

y the compressor. The gas constant of air is R = 0.287 kPa·m3/kg·K. The flow work required by the compressor is
Physics
1 answer:
Mariana [72]3 years ago
6 0

Answer:

The work flow required by the compressor = 100.67Kj/kg

Explanation:

The solution to this question is obtained from the energy balance where the initial and final specific internal energies and enthalpies are taken from A-17 table from the given temperatures using interpolation .

The work flow can be determined using the equation:

M1h1 + W = Mh2

U1 + P1alph1 + ◇U + Workflow = U2 + P2alpha2

Workflow = P2alpha2 - P1alpha1

Workflow = (h2 -U2) - (h1 - U1)

Workflow = ( 684.344 - 491.153) - ( 322.483 - 229.964)

Workflow = ( 193.191 - 92.519)Kj/kg

Workflow = 100.672Kj/kg

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In this question ,

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Thus ;

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Answer:

Check the explanation

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This is the step by step explanation to the above question:

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= 0.74 m/s

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