[757labs] air conditioner
lbaynum at gmail.com
Thu Sep 8 10:36:08 EDT 2011
Someone should look up how the camper refrigerator systems work, they can
run on 12vdc, 120vac or Propane gas.
On Thu, Sep 8, 2011 at 10:10 AM, Steve Nelson <snelson at webapper.com> wrote:
> That just seems counter intuitive to me. Not that I was ever good at
> Chemistry, but I do remember pv=nrt. If the volume remains the same and the
> temperature rises, the pressure must rise too.
> So wouldn't 'warm' vs 'hot' freon just be a matter of energy input and
> efficiency? In other words if the temperature and pressure isn't
> enough...add more lens'.
> The other method to make it work is have the sunlight turn a steam engine
> which turns the compressor pump, just replacing the electric motor with a
> steam engine. It's not nearly as fun, but I don't see why that wouldn't
> The reason I'm bringing this all up is that I want to make a life size snow
> globe that blows real snow in the desert using nothing but sunlight for a
> future Burning Man.
> On Wed, Sep 7, 2011 at 10:20 PM, Kevin McKinley <kevin at 757.org> wrote:
>> Probably not.
>> You'd end up with warm freon at only a slightly higher pressure, and
>> you couldn't get enough expansion to provide good cooling.
>> On Wed, 7 Sep 2011 21:42:22 -0400
>> Steve Nelson <snelson at webapper.com> wrote:
>> > Can anyone tell me if this is a crazy idea or not?
>> > Would it be possible to replace the compressor in an air conditioner
>> > with a fresnel lens? Instead of heating the freon by increasing the
>> > pressure, just directly heat the freon with sunlight through a
>> > fresnel lens. The volume would stay the same, but the temperature
>> > would increase. Then run the hot freon through an expansion valve
>> > increasing the volume thus decreasing the temperature. Would that
>> > work?
>> > Steve
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>> 757labs at 757labs.org
>> If we knew what we were doing it wouldn't be research.
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> If we knew what we were doing it wouldn't be research.
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