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Strange phenomena in fridge.

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elektroda.net NewsGroups Forum Index - Electronics AUS - Strange phenomena in fridge.

F Murtz
Guest

Tue Dec 19, 2017 3:15 pm   



If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.

Chris
Guest

Wed Dec 20, 2017 5:57 am   



On 20/12/2017 12:15 AM, F Murtz wrote:
Quote:
If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.


Or is it that your fridge is not "fan-forced" (to distribute the cold
around the chamber) and the drink is right next to the cooling element?

If the entire chamber was capable of freezing a drink wouldn't
everything else be frozen too?

--
Cheers,
Chris.

Sylvia Else
Guest

Wed Dec 20, 2017 6:32 am   



On 20/12/2017 12:15 AM, F Murtz wrote:
Quote:
If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.


Heat enters the fridge from all over, but the fridge is cooled at the
top. When the temperature outside is higher, more heat flows in, so to
maintain a steady state inside the fridge, more heat must be pumped out.
The flow of air in the fridge is obstructed, both by the things in the
fridge, and the turbulent flow of the air itself, so that represents a
thermal resistance. The greater the amount of heat flowing through a
thermal resistance the greater the temperature gradient. So, with a rise
in outside temperature, some parts of the fridge get warmer, and other
parts get colder, as you've discovered.

Sylvia.

Perry
Guest

Thu Dec 21, 2017 9:05 am   



On 19-Dec-17 9:15 PM, F Murtz wrote:
Quote:
If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.


Open the fridge and look at the back. Mine has openings where cold air
enters the fridge cavity.

If I put things a the back next to these inlets they get frozen.

F Murtz
Guest

Fri Dec 22, 2017 6:48 pm   



Chris wrote:
Quote:
On 20/12/2017 12:15 AM, F Murtz wrote:
If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.

Or is it that your fridge is not "fan-forced" (to distribute the cold
around the chamber) and the drink is right next to the cooling element?

If the entire chamber was capable of freezing a drink wouldn't
everything else be frozen too?

--
Cheers,
Chris.

No only the drink on the top shelf in front of what looks like a closed
in box with the words active smart on it which could be a fan (it has
small vent under it.
This freezing phenomena only occurs in hot weather

F Murtz
Guest

Fri Dec 22, 2017 6:51 pm   



Perry wrote:
Quote:
On 19-Dec-17 9:15 PM, F Murtz wrote:
If I leave an open drink on the top shelf of my fridge (non freezer
section)without changing temp settings, on hot days the drink freezes.

I can only think that the thermostat must be sensing part external
ambient temp and compensating, which does not say much for design.


Open the fridge and look at the back. Mine has openings where cold air
enters the fridge cavity.

If I put things a the back next to these inlets they get frozen.


When I get a tuit I may investigate further and get workshop manual for
a looksee and get a couple of thermometers and investigate but for the
moment it is just interesting.

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