Can air pressure stop in a pipe?

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SUMMARY

This discussion addresses the behavior of air flow through a 10-meter coiled pipe at a variable fan speed of 0.0053 m³/s. It concludes that while air cannot vanish, pressure can build up at the entrance of the pipe, potentially reducing the effective flow rate. The air will reach the end of the coil as long as the inflow is maintained, but pressure dynamics can influence the flow characteristics.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of pressure and flow rate relationships
  • Familiarity with airflow in coiled piping systems
  • Basic concepts of fan operation and variable speed control
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  • Explore "pressure drop calculations in piping systems"
  • Learn about "variable speed fan performance curves"
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This discussion is beneficial for engineers, HVAC professionals, and anyone involved in fluid mechanics or air flow system design.

Jimmy234
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Hi guys

Im trying to understand something..
If air is coming through a pipe, at a variable fan speed. (0.0053 m3/s) and the pipe is 10 meters long and coiled.

Will the air reach the end of the coil?
Or can air just loose pressure at a certain point?

Thanks!
 
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Air cannot vanish. If some flow goes in, flow comes out with exactly the same mass per time.
Your pipe can lower the amount of inflowing air if pressure builds up at the entrance.
 
Jimmy234 said:
Hi guys

Im trying to understand something..
If air is coming through a pipe, at a variable fan speed. (0.0053 m3/s) and the pipe is 10 meters long and coiled.

Will the air reach the end of the coil?
Or can air just loose pressure at a certain point?
Hi Jimmy234,

The answers to your questions are: Yes and yes.
Thanks!

You're welcome.
 
Last edited by a moderator:

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