Practice Optimal Stage Pressure Ratio (3) - Reciprocating Compressors - Applied Thermodynamics

Practice: Optimal Stage Pressure Ratio

Lesson 3Reciprocating Compressors

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10 questions

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3 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the formula to determine the intermediate pressure in a two-stage compressor?
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Think of the square root of the product of the inlet and delivery pressures.
Question 2.
Why is it advantageous to maintain equal pressure ratios across compressor stages?
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Consider energy consumption in an operation.
3Question 3.
What is the optimal pressure for a two-stage compressor if P1 is 100 kPa and P2 is 400 kPa?
- 150 kPa
- 200 kPa
- 300 kPa
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Use the formula P_intermediate = √(P1 * P2).
4Question 4.
True or False: Equal stage pressure ratios lead to reduced work input.
- True
- False
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Think about the benefits of uniform pressure distribution.
Question 5.
A six-stage compressor has an inlet pressure of 30 kPa and a final delivery pressure of 900 kPa. Calculate the optimal pressure ratio for each stage and explain its significance.
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Break down the calculation step by step.
Question 6.
If a compressor's actual stage pressure ratios differ significantly from the optimal ratios, what potential consequences might occur?
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Consider the effects of operational inefficiency on performance.

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