Pressure Chambers Project: 30+ PSI for School

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Discussion Overview

The discussion revolves around a school project involving the creation of a system that generates a pressure difference between two chambers, specifically aiming to achieve over 30 psi. Participants explore potential methods, materials, and applications related to this project.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant inquires about where to obtain a system capable of generating over 30 psi and mentions the need for portability.
  • Another participant suggests that a bike tire pump can exceed 30 psi, prompting a question about the project's intended application.
  • A participant emphasizes the need for a chamber to contain the air, along with a valve for pressure release, indicating that a tire may not be suitable for this purpose.
  • Some participants mention the availability of compressed air tanks and caution against using pure oxygen due to fire hazards.
  • There is a request for clarification on the project's goals, with a focus on the various applications of compressors in creating pressure differences.
  • A participant expresses the desire to shoot a ping pong ball at high speed and discusses the current method of creating a vacuum in the pipe, seeking advice on whether a compressed air tank would be a better option and if it can be refilled for repeated use.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach or materials for the project, and multiple competing views regarding the methods and applications remain present.

Contextual Notes

Participants have not fully defined the parameters of the project, including the specific requirements for the chamber and the implications of using different pressure sources. There is also uncertainty regarding the refillability of compressed air tanks.

Who May Find This Useful

This discussion may be useful for students or hobbyists interested in pressure systems, pneumatic applications, or project-based learning in physics and engineering.

GTdan
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Well, I'm putting this here because I don't know where else to put this topic. I want to do a project for school that requires me to make a system where there is a difference in pressure between 2 "chambers." Does anyone know where I can buy or get something that will put out over 30 psi (and something I could carry or push in a small cart)?
 
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No one writes when I am on so you are going to wait a while for a reply
 
A bike tyre pump will go to well over 30 psi.

What do you actually want to do with this project?
 
Well I would need some kind of chamber to keep the air in, not just the pump. The chamber would need a valve or some area where the air would rush out when it's opened or when the pressure gets too great (so I don't think using the tire itself to hold the pressure would work exactly- though I could be wrong).
 
Some companies sell compressed air in appropriate tanks. Do not use pure oxygen since it can create a fire hazard if use near fire and fuel or other flammable materials.
 
What do you actually want to do with this?

There are hundreds of applications using compressors to create pressure differences between two chambers, all doing very different jobs.
 
I would like to shoot a ping pong ball VERY fast. Currently the way it's working is simply creating vacuum "inside" the pipe where the ball is. It works pretty well but I wanted to improve on it and make it go faster.

Do you think buying a tank of compressed air would be better? Could I fill it back up? Because if the project doesn't get the ball going as fast the first time around, I would like to try again without having to buy another one.
 

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