Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 51 users online :: 4 registered, 1 hidden and 46 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Haniball1337 based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Possible way to increase pneumatic cannon power?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Possible way to increase pneumatic cannon power?

Unread postAuthor: Doctore » Mon May 20, 2019 9:36 pm

Hello everyone!

Recently I was thinking about this idea to increase your pneumatic cannon power if you are limited by pump source. I have no idea if this could work.

I have an ordinary bike pump which can go up to 6 bar and currently don't have an electrical air compressor. The idea is to create full metal ball valve Airgun, pressurize it to 6 bar and then heat it on the gas stove to a higher temperature. Spring loaded mechanism as a trigger would be used.

My reasoning is that gas expands as energy is added to a system. What are your thoughts on this?
  • 0

User avatar
Doctore
Staff Sergeant
Staff Sergeant
 
Posts: 127
Joined: Sat Mar 26, 2011 2:18 pm
Location: Danilovgrad
Country: Montenegro (me)
Reputation: 5

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: D_Hall » Mon May 20, 2019 11:03 pm

Yes, heating it up would increase the theoretical performance of the gun. However, ball valves absolutely suck and the use of one would cripple you as compared to a normal pneumatic with a proper valve for the application.

Beyond that? It's a lot more energy efficient to just put the gas from the stove inside the gun, light it there, and call your gun a hybrid. That is, after all, how a hybrid works (more or less).
  • 1

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1833
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 32

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: Moonbogg » Tue May 21, 2019 1:35 am

Sounds like you're on your way to a steam-powered spud gun? I have no idea how steam pressure works except that it makes things explode if a safety valve isn't used.
  • 0

User avatar
Moonbogg
Major General
Major General
 
Posts: 1458
Joined: Mon Oct 13, 2008 10:20 pm
Location: Ontario, CA USA
Country: United States (us)
Reputation: 34

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: jackssmirkingrevenge » Tue May 21, 2019 4:44 am

just put the gas from the stove inside the gun, light it there, and call your gun a hybrid


Yup. You can also just buy one of those cheapo Chinese pumps and be done with it :D
  • 0

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 25461
Joined: Thu Mar 15, 2007 11:28 pm
Country: Chad (td)
Reputation: 253

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: Doctore » Tue May 21, 2019 6:43 pm

D_Hall wrote:Yes, heating it up would increase the theoretical performance of the gun. However, ball valves absolutely suck and the use of one would cripple you as compared to a normal pneumatic with a proper valve for the application.

Beyond that? It's a lot more energy efficient to just put the gas from the stove inside the gun, light it there, and call your gun a hybrid. That is, after all, how a hybrid works (more or less).


Then burst disc cannon would be a better solution. I am thinking bigger the chamber, more thermal energy can be stored.

Moonbogg wrote:Sounds like you're on your way to a steam-powered spud gun? I have no idea how steam pressure works except that it makes things explode if a safety valve isn't used.


It would perform better at rainy and humid days. The burst disc cannon would be a safety in itself, the thin aluminum disk would burst at a certain pressure. Perhaps adding a teaspoon of water plus pressurized air?

jackssmirkingrevenge wrote:
just put the gas from the stove inside the gun, light it there, and call your gun a hybrid


Yup. You can also just buy one of those cheapo Chinese pumps and be done with it :D


Or use Chinese high pressure pump and thermal energy :mrgreen:

Anyways, this is the chamber I plan to use. Everything would be isolated with aluminum foil and newspaper, except for the central part of the pipe which will be exposed to flames.

Image
  • 0

User avatar
Doctore
Staff Sergeant
Staff Sergeant
 
Posts: 127
Joined: Sat Mar 26, 2011 2:18 pm
Location: Danilovgrad
Country: Montenegro (me)
Reputation: 5

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: D_Hall » Wed May 22, 2019 12:06 am

If you're just doing this to prove that it can be done, go for it.

DO understand that there are much easier ways to accomplish your goal, however.
  • 0

Simulation geek (GGDT / HGDT) and designer of Vera.
User avatar
D_Hall
Donating Member
Donating Member
 
Posts: 1833
Joined: Thu Feb 07, 2008 7:37 pm
Location: SoCal
Reputation: 32

Re: Possible way to increase pneumatic cannon power?

Unread postAuthor: jackssmirkingrevenge » Wed May 22, 2019 6:07 am

So the plan is to basically heat the chamber until the burst disk fails?

Sounds like fun :D make sure that the chamber material doesn't lose too much strength when being heated...
  • 0

hectmarr wrote:You have to make many weapons, because this field is long and short life
User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 25461
Joined: Thu Mar 15, 2007 11:28 pm
Country: Chad (td)
Reputation: 253

Re: Possible way to increase pneumatic cannon power?

Sponsored

Sponsor
 


Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Haniball1337

Reputation System ©'