Airflow and Preassure HW: Find Flow for Engine Needing 1m3/min

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SUMMARY

The discussion focuses on calculating the airflow required from a machine to supply an engine needing 1 m3/min at standard conditions (p=101.325 kPa, T=293.15 K) while the machine operates at a pressure of 700 kPa. Using the ideal gas law, the user calculated the number of moles (n) as 0.04157 and subsequently determined the required volume flow rate from the machine to be 0.14475 m3/min. The calculations are based on the equations pV=nRT and V2=(nRT)/p, confirming the relationship between pressure, volume, and temperature in gas flow.

PREREQUISITES
  • Understanding of the ideal gas law (pV=nRT)
  • Basic knowledge of pressure and volume relationships in gases
  • Familiarity with standard atmospheric conditions (p=101.325 kPa, T=293.15 K)
  • Ability to perform unit conversions and calculations involving cubic meters per minute
NEXT STEPS
  • Explore advanced applications of the ideal gas law in engineering contexts
  • Learn about pressure drop calculations in fluid dynamics
  • Investigate the effects of temperature variations on gas flow rates
  • Study real-world applications of airflow requirements in engine design
USEFUL FOR

Students in engineering, particularly those studying thermodynamics and fluid mechanics, as well as professionals involved in engine design and airflow optimization.

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Homework Statement


Engine needs airflow of 1 m3/min (std. p=101.325kPa, T=293.15K) it is suplied by machine working at p=700kPa.

Homework Equations


How big flow is requied from the machine to supply engine with air?

The Attempt at a Solution


Tryed using ideal gas law pV=nRT
1) I found out n, using n=(pV)/(RT)=(101,325*1)/(8,314*293,15)=0,04157
2)I used 2nd preasure to add to to eq. V2=(nRT)/p=(0,04157*8,314*293,15)/700=0,14475m3/min

Have no way to check if that is correct or not.
 
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You must show some attempt. Tell us what you know. This must be relevant to something you are learning in a textbook.
 
hope that will do, I honestly don't know tho
 
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