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 40 users online :: 4 registered, 0 hidden and 36 guests


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

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

I need a favor from anyone who uses HPA or nitrogen tanks

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

I need a favor from anyone who uses HPA or nitrogen tanks

Unread postAuthor: jmccalip » Fri May 22, 2009 10:16 pm

How cold is the gas when it exits the tank? Specifically, I want to fill through a shrader valve with a chamber volume of 7 gallons.

It would be great if someone could measure the temp of the gas as it exits the fill adapter.
  • 0

User avatar
jmccalip
Staff Sergeant
Staff Sergeant
 
Posts: 118
Joined: Sun Apr 12, 2009 8:07 pm
Reputation: 0

Re: I need a favor from anyone who uses HPA or nitrogen tank

Unread postAuthor: Ragnarok » Fri May 22, 2009 10:28 pm

jmccalip wrote:How cold is the gas when it exits the tank?

That entirely depends on tank volume, tank pressure (or upper and lower extremes at least), tank temperature, chamber volume and chamber pressure.

It's possible to calculate reasonably accurately the final chamber temperature with a little maths. However, obviously, not without knowing the numbers needed to do so.

EDIT: I should warn you, I'm going to bed now. If you really need me to do the maths, responses from me will not be prompt.
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Ragnarok
Chief of Staff
Chief of Staff
 
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Re: I need a favor from anyone who uses HPA or nitrogen tank

Unread postAuthor: jmccalip » Fri May 22, 2009 10:39 pm

Ragnarok wrote:
jmccalip wrote:How cold is the gas when it exits the tank?

That entirely depends on tank volume, tank pressure (or upper and lower extremes at least), tank temperature, chamber volume and chamber pressure.

It's possible to calculate reasonably accurately the final chamber temperature with a little maths. However, obviously, not without knowing the numbers needed to do so.

EDIT: I should warn you, I'm going to bed now. If you really need me to do the maths, responses from me will not be prompt.


Hmm, combined gas law maybe? I'll see what I can figure out.
  • 0

User avatar
jmccalip
Staff Sergeant
Staff Sergeant
 
Posts: 118
Joined: Sun Apr 12, 2009 8:07 pm
Reputation: 0

Re: I need a favor from anyone who uses HPA or nitrogen tank

Unread postAuthor: jackssmirkingrevenge » Sat May 23, 2009 12:47 am

jmccalip wrote:How cold is the gas when it exits the tank?


Very ;)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'