I guess the ideal gas law really does work! Take a look at this tank car. Does it remind you of a beer can?
Interesting - must have been pretty hot inside the car when they got done. Until I read it, I figured it was more like “hey George, did you open the vent?”
Looks like the pic’s {Houston}, Ed had on here some months ago…No question, if {roughly}, equal pressure is removed from inside a vessel such as the tank car…the atmosphere will crush it…
You know, having the tank car’s tank be the frame of the car always sort of scared me. Is there any problem with having it be the frame?
I have heard of only a few incidences of tankcars being pulled apart. In general the construction of tank cars is not a problem.
Like a giant beer can. I’ve seen one of those, though not quite so severe.
Throw me another one! BBBUUURRRRPPP!!! [:P][:P][:P][:P][:P]
can somebody say “oops”
…Just my thoughts on using the tank on the tank car as the frame structure…Understand the material is about 7/16" thick and a tube shape enclosed at the ends to support it’s shape sounds like a very strong structure to me…
Sombody forgot to open vent or dome lid when pumping car out.
No problem, just turn the pump around and blow it back up…right…[8D]
Yes, but I’m afraid they just aren’t quite the same after that.[;)]
A couple of years ago at the Minnesota State Fair, the U of M physics department had a show where they did this demo with a 55 gallon drum. With a small amount of water in the drum, they placed burners under it, and got it steaming pretty good. Then they capped it, and left it sit until later in the show.
The end result was much like the tank car, and happened very suddenly.
If the vent was closed during emptying, one would expect the damage happen more slowly and someone would intervene and open the vent before a total collapse.
…Believe I remember of some kind of cleaning material used in a tank car…{it may have been the one pictured}, and the product used heat and after the cleaning the tank was somehow capped and when it cooled the atmosphere collapsed it…
Now you understand why it is so hard to find top quality canned vacumn these days.
Jay
I remember seeing that in science class a couple weeks ago when studying the Ideal Gas Law…
Someone did a major [#oops][oops]
cnw8835 THANK YOU!!![bow]
I’m getting extra credit for this one tomarrow!!![8D]
The only problem with doing that is that, once the pressure starts dropping inside the tank, the differential would prevent anyone from being able to open the vent, unless it’s a faucet-style vent.
The inside of the car had just been steam cleaned, all of the valves and vents were closed then everyone went home for the night.
Balanced slide valves forever!
I did that a couple years back, Jr high not sr. Are you sure a UFO didn’t land on it?
Matthew, highest marks in Physics 20