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A single stage reciprocating compressor takes 1m³ of air per minute and 1.013 bar and 15°C and delivers at 7 bar. Assuming Adiabatic law (n=1.35) and no clearance.

A single stage reciprocating compressor takes 1m³ of air per minute and 1.013 bar and 15°C and delivers at 7 bar. Assuming Adiabatic law (n=1.35) and no clearance.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Answer  1.8 and 1.9

Question 1 A single stage reciprocating compressor takes 1m³ of air per minute and 1.013 bar and 15°C and delivers at 7 bar. Assuming Adiabatic law (n=1.35) and no clearance. Calculate: 1.1. Mass flow rate (1.226 kg/min) 1.2. Delivery Temperature (475.4 K) 1.3. Indicated power (4.238 kW) This same compressor is now driven at 300 rpm, has a stroke to bore ratio of (1,5:1), it has a mechanical efficiency for the compressor of 85% and motor transmission efficiency of 90%. Calculate: 1.4. Volume per cycle (0.00333 m³/cycle) 1.5. Cylinder bore diameter (141.4 mm) 1.6. Power to the compressor (4.99 kW) 1.7. Motor power needed (5.54 kW) 1.8. The isothermal power (3.265 kW) 1.9. The isothermal efficiency (77%)
Transcribed Image Text:Question 1 A single stage reciprocating compressor takes 1m³ of air per minute and 1.013 bar and 15°C and delivers at 7 bar. Assuming Adiabatic law (n=1.35) and no clearance. Calculate: 1.1. Mass flow rate (1.226 kg/min) 1.2. Delivery Temperature (475.4 K) 1.3. Indicated power (4.238 kW) This same compressor is now driven at 300 rpm, has a stroke to bore ratio of (1,5:1), it has a mechanical efficiency for the compressor of 85% and motor transmission efficiency of 90%. Calculate: 1.4. Volume per cycle (0.00333 m³/cycle) 1.5. Cylinder bore diameter (141.4 mm) 1.6. Power to the compressor (4.99 kW) 1.7. Motor power needed (5.54 kW) 1.8. The isothermal power (3.265 kW) 1.9. The isothermal efficiency (77%)
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