That has actually happened, where the vent got plugged and the commodity draining out the bottom created a vacuum and collapsed the car tank. Whether that ever happened with the older riveted type tank cars with their thicker walls, I don't know.
Bob Nicholson ________________________________________ --- In [email protected], Pieter Roos <pieter_r...@...> wrote: > > Hi all; > > This is one of a couple of clips on-line showing safety demonstrations of > what happens if you drain a tank without properly venting it. The hose was to > drain the liquid contents of the thank. > > Another one on YouTube is heating a 55 gal drum, sealing it and placing it on > ice. After it cools to a point it suddenly implodes as well. > > Pieter E. Roos > > > --- On Mon, 12/20/10, Jamie Bothwell <vze4c...@...> wrote: > > > From: Jamie Bothwell <vze4c...@...> > > Subject: Re: {S-Scale List} Tankcar implosion!!! > > To: [email protected] > > Date: Monday, December 20, 2010, 6:00 AM > > John and Tyler, > >    I'm not a physicist, but I did sleep at > > a Holiday Inn Express last night. 760 Torr is a one of > > the measures of standard air pressure. That could have > > something to do with it. In the one shot there is a > > hose running from under the tank. My guess is that > > this is supposed to represent what could happen it you were > > doing something incorrectly, like maybe unloading the tank > > too fast or cleaning it with pressurized steam or > > something. Heating the air inside the tank and > > possibly allowing the heated air to escape through a safety > > valve could cause such a result. > > Jamie > > > > On Dec 20, 2010, at 2:05 AM, John M Walker wrote: > > > > > It's a fragment of a longer clip. The announcer is > > probably counting down, > > > because says (if I am hearing correctly over the > > music): "Siebenhundertsechsig: > > > wir wollten ..." > > > > > > translation = '760, we wanted to...' and then it stops > > mid-sentence. > > > > > > 760-something? Maybe a physicist is on line and can > > guess what that means. > > > I got a B- in both semesters of college Physics, and > > that was more than 25-years > > > ago, so I have no idea. > > > > > > ________________________________ > > > From: Tyler <tfroa...@...> > > > To: [email protected] > > > Sent: Mon, December 20, 2010 1:16:28 AM > > > Subject: {S-Scale List} Tankcar implosion!!! > > > > > >   > > > While I can't understand what's being said in the > > video, this appears to be some > > > sort of vacuum test on a European tankcar that results > > in the implosion of that > > > tankcar⦠> > > > > > http://www.metacafe.com/watch/2899880/powerful_vacuum/ > > > > > > Just thought you'd enjoy this... > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > >   [email protected] > > > > > > > ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
