I love old tin cans!

[Rubycon]

Probably not what you're thinking...

http://www.youtube.com/watch?v=EPnwdOqldrk&feature=relmfu

Check it out. Neat stuff.

 

[FoBoT]

i thought you meant this kind of old tin can
http://youtu.be/-SSDjH3lcfs

 

[Rubycon]

Oh good Heavens no!
I tend to avoid drab ships with pointy things on them! Ditto for submarines. :biggrin:
I don't want to even think about the H-word.

 

[Red Squirrel]

Those look like fun to play with. Can tell they are built quite like tanks too.

 

[Linflas]

i thought you meant this kind of old tin can
http://youtu.be/-SSDjH3lcfs

First thing I thought of as well. Funny I joined the Navy wanting to serve on a tin can and of course in their infinite wisdom they put me in the brown shoe Navy in an ASW squadron so I ultimately ended up on a carrier.

 

[Moonbeam]

Here's another kind of machine that causes a pressure drop in gas.

http://www.youtube.com/watch?v=QrgTtZXuj4w&feature=related

 

[surfsatwerk]

I'm a little piece of tin,
Nobody knows what shape I'm in,
I'm a four door I'm a Ford,
Got four wheels and a running board,
Honk honk rattle rattle crash beep beep,
Honk honk rattle rattle crash beep beep.

 

[Rubycon]

Those look like fun to play with. Can tell they are built quite like tanks too.

Yes considering they require active cooling from the refrigerant vapor along with lubrication and they run just fine in open air! :awe:

 

[zinfamous]

I thought you were talking about precious antique cans.

http://www.youtube.com/watch?v=m6uto4wQY_g

 

[alkemyst]

I don't want to even think about the H-word.

yeah herpes is the suck on ships.

 

[BladeVenom]

I always thought the gas/propane refrigerators were interesting. It's kind of counter intuitive, using fire to produce cold.

 

[Rubycon]

I always thought the gas/propane refrigerators were interesting. It's kind of counter intuitive, using fire to produce cold.

Yes absorption systems are neat but most of the small fridges used in RV/Boats, etc. are fairly boring. (unless there's a refrigerant leak! Ammonia is quite strong)

Check out this movie. His "invention" was based on a mammoth R717 unit!

http://www.imdb.com/title/tt0091557/

 

[alkemyst]

I always thought the gas/propane refrigerators were interesting. It's kind of counter intuitive, using fire to produce cold.

Still the same principles today with peltier cooling even used in computers now.

 

[Squisher]

My old beer fridge. That is until I figured out how much it was costing me to run it.

 

[feralkid]

He HATES these cans!

 

[thebestMAX]

He HATES these cans!

Plus 1

 

[Rubycon]

Still the same principles today with peltier cooling even used in computers now.

Not quite. Absorption refrigeration chiefly uses Ammonia in pure form (R717). TE cooling relies on reverse Seebeck effect using an electrical current to "move" heat from one side of the junction to the other. TE cooling is generally used in tight areas for semi-precision spot cooling. DPSS lasers is one application that comes to mind. Enthusiast PCs used it in the 90s and early 00s however today's CPUs have excessive TDP to make such an arrangement practical for the typical hobbyist.

 

[alkemyst]

Not quite. Absorption refrigeration chiefly uses Ammonia in pure form (R717). TE cooling relies on reverse Seebeck effect using an electrical current to "move" heat from one side of the junction to the other. TE cooling is generally used in tight areas for semi-precision spot cooling. DPSS lasers is one application that comes to mind. Enthusiast PCs used it in the 90s and early 00s however today's CPUs have excessive TDP to make such an arrangement practical for the typical hobbyist.

I was referring to simply using heat to cool.

 

[Rubycon]

I was referring to simply using heat to cool.

A thermoelectric cooler requires an electric current to cool. If heat is applied to one side and the other left colder an electric current will be generated. This is how a thermocouple works to keep a pilot light on a heater. Wind blows the flame out from a downdraft, for example; thermocouple cools down and holding field in gas valve becomes too weak to overcome spring. Valve closes, a basic passive flame safeguard. Gas shuts off automatically so your house doesn't go boom boom! when you turn on the lights.

 

[ringtail]

``

 

[dennilfloss]

Aw yes. It's a Kaiser. A marvel of German engineering.

http://www.youtube.com/watch?v=6DVjl62QVBg

 

[Rubycon]

Aw yes. It's a Kaiser. A marvel of German engineering.

http://www.youtube.com/watch?v=6DVjl62QVBg

Schuhverkäufer!

:biggrin: