Capture and re-use the heat generated from Air Compression

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Discussion Overview

The discussion centers on the feasibility of capturing and re-using heat generated during the compression of air to fill pipes with a volume of 556 cubic feet to a pressure of 15,000 psi. Participants explore the technical challenges and safety considerations associated with high-pressure air compression systems.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about the possibility of heat capture and re-use during air compression at high pressures.
  • Another participant expresses concern about the safety of working with compressed air compared to other fluids, highlighting the risks associated with leaks and potential explosions.
  • A participant with experience in petroleum engineering shares insights on high-pressure systems, noting that steel piping can handle pressures up to 18,000 psi, but admits to a lack of experience with air compression specifically.
  • There is a reference to the ASME B31 code for pressure piping, suggesting that different applications may have specific requirements and safety considerations.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility of heat capture and re-use in this context, and there are varying opinions on the safety and technical aspects of high-pressure air systems.

Contextual Notes

Participants express uncertainty regarding the specific technologies available for heat exchange and the implications of using compressed air versus other fluids. The discussion does not resolve the technical and safety concerns raised.

Walker C
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I am trying to fill pipes with a volume of 556 cuft to 15,000 psi. I want to capture and re-use the heat generated from the compression process and re-use it.

Is this amount of compression and heat exchanging possible with current technology
 
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Welcome to the PF. :smile:
Walker C said:
I am trying to fill pipes with a volume of 556 cuft to 15,000 psi. I want to capture and re-use the heat generated from the compression process and re-use it.

Is this amount of compression and heat exchanging possible with current technology
Sorry, at that pressure, you are well into the red. What is your experience with high-pressure systems?

https://www.surpluscenter.com/produ...-15000+PSI+2.50++Dia+Powerteam+LF+Gauge_L.jpg

0-15000+PSI+2.50++Dia+Powerteam+LF+Gauge_L.jpg
 

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More on the pressure pumping side using fluid. I am a petroleum engineer and have completed oil wells up to 12,000 psi using hydraulic pumps. Steel piping is rated up to 18,000 psi if needed to I am trying trap as much pressure as possible.

I don't have any experience in air compression though.
 
Are you aware that compressed air is more dangerous than compressed water or compressed hydraulic oil? It is the compressibility itself that is the cause.

Spring a leak in a water pipe, and the gauge pressure goes to zero almost immediately. Do the same in a compressed air container and it retains the pressure. Worse, the jet through the leak enlarges the hole or the crack until it might become a rupture, leading to an explosion.

What is your application? I was looking at the ASME B31 code for pressure piping, and it is divided into many sections depending on application.
 
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