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Old 05-10-2004, 02:11 PM
Jaques d'Alltrades
 
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The message
from "Franz Heymann" contains these words:

Anyway - I have (accidentally) frozen cans of lager in the deep

freeze many
times and they haven't bursted the can


Have you ever thought of the fact that there is probably a small space
ibn the can, containing gas into which the lager might expand?
Have you ever thought of the consequences of the fact that the
solubility of gases in water incfesaes as the temperature decreases?
Have you considered that the shape of the bottom of a lager can is
such as to allow it to be deformed under pressure in such a way as to
increase the internal volume?


- the beer is already under pressure,


Which, of course, decreases as the temperature drops.


However, on freezing, i think that all the dissolved gas is freed -
certainly, I have had cans explode in the freezer - not just split.

the material is about a tenth of the thickness of copper pipe and

they have
been in there for days without bursting, I think people

underestimate the
strength of water pipes


No. water pipes are known to burst on occasion.


....if the tap is open, the water/slush/ice will
escape through there before getting through the metalwork.


So according to you all those burst water pipes are just in people's
imaginations?


To be fair, most of those instances would be when the taps are left
closed. It's a sensible precaution to take, but not infallible. It just
depends on where the ice forms a solid and unmovable plug.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/
  #32   Report Post  
Old 06-10-2004, 03:41 AM
Franz Heymann
 
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"Jaques d'Alltrades" wrote in
message k...
The message
from "Franz Heymann" contains

these words:

Anyway - I have (accidentally) frozen cans of lager in the deep

freeze many
times and they haven't bursted the can


Have you ever thought of the fact that there is probably a small

space
ibn the can, containing gas into which the lager might expand?
Have you ever thought of the consequences of the fact that the
solubility of gases in water incfesaes as the temperature

decreases?
Have you considered that the shape of the bottom of a lager can is
such as to allow it to be deformed under pressure in such a way as

to
increase the internal volume?


- the beer is already under pressure,


Which, of course, decreases as the temperature drops.


However, on freezing, i think that all the dissolved gas is freed -
certainly, I have had cans explode in the freezer - not just split.

the material is about a tenth of the thickness of copper pipe

and
they have
been in there for days without bursting, I think people

underestimate the
strength of water pipes


No. water pipes are known to burst on occasion.


....if the tap is open, the water/slush/ice will
escape through there before getting through the metalwork.


So according to you all those burst water pipes are just in

people's
imaginations?


To be fair, most of those instances would be when the taps are left
closed. It's a sensible precaution to take, but not infallible. It

just
depends on where the ice forms a solid and unmovable plug.


I think that between us, we have flogged this topic to death. I
propose to withdraw.

Franz


  #33   Report Post  
Old 06-10-2004, 12:01 PM
Klara
 
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In message , Martin
writes
Half a life time ago, I had a development corporation flat in Cwmbran.
Half the wall area was single glazed glass. The only heating was a 2 KW
electric fire. In winter there was frost on the inside walls. I used to
run electric fire and the Baby Belling oven with the doors open to get
the temperature above freezing. I also gave a good proportion of my
salary to the electrickery company.


I first came to London from the States in the sixties, and a relative
rented me a room just under the rafters. There was one of those
tube-shaped electric fires, with an orange light bulb in the bottom; the
only 'heat' came from the bulb. It wasn't until I came back some years
later that I discovered that there is an element above the bulb, which
should have been working.
Still, I must have loved it - I'm still here!

--
Klara, Gatwick basin
  #34   Report Post  
Old 06-10-2004, 01:54 PM
Klara
 
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In message , Martin
writes
It wasn't until I came back some years
later that I discovered that there is an element above the bulb, which
should have been working.
Still, I must have loved it - I'm still here!


You must have saved a fortune :-)


Well, my aunt did: my Dad paid her a fortune for having me

--
Klara, Gatwick basin
  #35   Report Post  
Old 06-10-2004, 02:12 PM
newsb
 
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In article , Klara
writes

Well, my aunt did: my Dad paid her a fortune for having me


I know I'm going to regret this, but...

....is that legal?

--
regards andyw


  #36   Report Post  
Old 06-10-2004, 02:38 PM
Klara
 
Posts: n/a
Default

In message , newsb
writes
Well, my aunt did: my Dad paid her a fortune for having me


I know I'm going to regret this, but...

...is that legal?


;-D
--
Klara, Gatwick basin
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