Which is better, heat pipe or heat sinks/fan CPU cooling solution. ?

Mxsmanic, <>, the grizzled, obese imbecile, and street
entertainer who sings ballads, bitched:


> Transpose hotmail and mxsmanic in my e-mail address

Hmmmm....



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Is that you?

Mxsmanic wrote:
> Forum User writes:
>
>> Peltiers are not refrigerators because there's no refrigerant to be
>> phase-changed.
>
> A refrigerator is anything that refrigerates, with or without
> refrigerant. Thus, Peltier devices are refrigerators, even though
> they contain no conventional refrigerant (although I suppose one could
> consider electrons to be the refrigerant).

So you use a Peltier to refrigerate your beer, do you ?
The whole point was that HEATPIPES aren't refrigerators.
So why are Pelts being discussed ?

Mxsmanic wrote:
> Forum User writes:
>
>> They refrigerate - but in that they are not phase-change heat-pumps,
>> they are not what are normally referred to as refrigerators.
>
> By whom? I've usually heard them called refrigerators.

Funny, but I can't remember the last time I heard someone say "I'm just
gunna get a beer out of the Peltier".
Strange that.

Forum User wrote:

> David Maynard wrote:
>
>>Forum User wrote:
>>
>>
>>>keith wrote:
>>>
>>>
>>>>On Mon, 30 May 2005 07:31:16 +0000, Forum User wrote:
>>>>
>>>>
>>>>
>>>>>Le Rosbif wrote:
>>>>>
>>>>>
>>>>>>>The xp120 got some of the "mad scientists" in our shop thinking
>>>>>>>about a more economical way to cool with refrigeration than what
>>>>>>>is currently out there.
>>>>>
>>>>>Heatpipes use (refrigerant) convection, not refrigeration (which
>>>>>has a compression phase in the cycle).
>>>>
>>>>Well, heat-pipes do use *passive* refrigeration. The same phase
>>>>changes go on.
>>>
>>>
>>>You need to look up 'refrigeration'.
>>>Refrigerators are heat-pumps, able to transfer heat AGAINST thermal
>>>gradients - allowing sub-ambient cooling.
>>>The key phase is compression.
>>>No compression, no refrigeration.
>>
>>Well, not with gas/liquids as the working medium anyway, which is
>>probably what you meant. But peltier devices operate on a completely
>>different principle with no compression cycle involved.
>
>
>
> Peltiers are not refrigerators because there's no refrigerant to be
> phase-changed.

You have the refrigerator and refrigerant dependencies reversed.
Refrigerant is dependent on refrigeration as it is the functional name of
the active medium used for that purpose but refrigerator is not dependent
on refrigerant. As you so aptly put it "Refrigerators are heat-pumps, able
to transfer heat AGAINST thermal gradients - allowing sub-ambient cooling."

And that perfectly describes peltiers.


> Not quite sure why you raised the subject of Peltiers.

For completeness since you also said "No compression, no refrigeration."


>>>You could fill a heatpipe with anything - and it's still just a
>>>coolant-convection device.
>>>Filling it with a 'refrigerant' won't make it a refrigerator.
>>>
>>>
>>>The process is simply "pumped" by the spare heat of the
>>>
>>>
>>>>processor. This is "refrigeration", as much as a gas "fired"
>>>>refrigerator is a "refrigerator". ...actually more so, because the
>>>>refrigerator isn't using "waste" heat.
>
>
>

Forum User wrote:

> Mxsmanic wrote:
>
>>Forum User writes:
>>
>>
>>>They refrigerate - but in that they are not phase-change heat-pumps,
>>>they are not what are normally referred to as refrigerators.
>>
>>By whom? I've usually heard them called refrigerators.
>
>
> Funny, but I can't remember the last time I heard someone say "I'm just
> gunna get a beer out of the Peltier".
> Strange that.
>
>

Maybe because you just don't happen to know anyone who owns this peltier
based refrigerator, or one like it.

http://www.beveragefactory.com/refri...ct/ec15w.shtml

Forum User wrote:

> Funny, but I can't remember the last time I heard someone say "I'm just
> gunna get a beer out of the Peltier".
> Strange that.

Hmmm thats odd - my beer cooler is a peltier refrigerator. Yes its
pretty crap, but it doesn't use any refridgant.

Ash.

Ashp wrote:
> Forum User wrote:
>
>> Funny, but I can't remember the last time I heard someone say "I'm
>> just gunna get a beer out of the Peltier".
>> Strange that.
>
> Hmmm thats odd - my beer cooler is a peltier refrigerator. Yes its
> pretty crap,

Maybe that's why.

but it doesn't use any refridgant.
>
> Ash.

Forum User writes:

> Funny, but I can't remember the last time I heard someone say "I'm just
> gunna get a beer out of the Peltier".
> Strange that.

Trucks generally have multiple wheels and a driver and a trailer and
cab, and yet railroad freight cars rest on top of them.

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Forum User writes:

> So you use a Peltier to refrigerate your beer, do you ?

I don't have any beer.

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