"Gilligan" wrote in message
. ..

OzOne wrote in message
...
On Fri, 03 Nov 2006 14:24:18 +1030, Flying Tadpole
scribbled thusly:

Gilligan wrote:
What is your PhD in?




More importantly, what is in your PhD??

Lost of incomprehensible BS about a method of cooling.

What kind of cooling - phase change, magnetic, electric field, expansion
of gases or something else? Did you know Einstein invented a refrigerator?
I'm interested!

Do tell!

I'm guessing it's the system that uses sound waves and speakers as the
cooling system!
Are we keeping score?
Scout

"Scout" wrote in message
...
"Gilligan" wrote in message
. ..

OzOne wrote in message
...
On Fri, 03 Nov 2006 14:24:18 +1030, Flying Tadpole
scribbled thusly:

Gilligan wrote:
What is your PhD in?




More importantly, what is in your PhD??

Lost of incomprehensible BS about a method of cooling.

What kind of cooling - phase change, magnetic, electric field, expansion
of gases or something else? Did you know Einstein invented a
refrigerator? I'm interested!

Do tell!

I'm guessing it's the system that uses sound waves and speakers as the
cooling system!
Are we keeping score?
Scout


The problem with single frequency sound waves, if they are travelling is
that a fixed point along the path experiences both high and low pressures
equally.

In the case of standing waves a fixed point sees a time varying pressure.
The trick in either case would be to move from a high pressure point to a
low pressure point quickly or do a frequency sweep. Still doesn't sound
practical.

Perhaps using a liquid as the medium rather than air and having the liquid
go through a phase change. Now it's almost a conventional refrigerator, one
is just replacing the compressor.

"Gilligan" wrote in message
...

"Scout" wrote in message
...
"Gilligan" wrote in message
. ..

OzOne wrote in message
...
On Fri, 03 Nov 2006 14:24:18 +1030, Flying Tadpole
scribbled thusly:

Gilligan wrote:
What is your PhD in?




More importantly, what is in your PhD??

Lost of incomprehensible BS about a method of cooling.

What kind of cooling - phase change, magnetic, electric field, expansion
of gases or something else? Did you know Einstein invented a
refrigerator? I'm interested!

Do tell!

I'm guessing it's the system that uses sound waves and speakers as the
cooling system!
Are we keeping score?
Scout


The problem with single frequency sound waves, if they are travelling is
that a fixed point along the path experiences both high and low pressures
equally.

In the case of standing waves a fixed point sees a time varying pressure.
The trick in either case would be to move from a high pressure point to a
low pressure point quickly or do a frequency sweep. Still doesn't sound
practical.

Perhaps using a liquid as the medium rather than air and having the liquid
go through a phase change. Now it's almost a conventional refrigerator,
one is just replacing the compressor.

Might it widen the range of possible refrigerants (i.e., phase changing
medium)?
Would be nice to see a system that uses water as the refrigerant (besides
some commercial absorbers).
Scout