math - 2-8-2013 at 12:03
Hello,
I'd like to know what are some of the most cost-effective cooling methods, either for rooms, reaction containers or generally speaking.
Thank you 
bfesser - 2-8-2013 at 12:24
Live in the arctic.
[edit]
<a href="http://en.wikipedia.org/wiki/Cryocooler" target="_blank">cryocooler</a> <img src="../scipics/_wiki.png" />
<a href="http://en.wikipedia.org/wiki/Thermoelectric_cooling" target="_blank">thermoelectric cooling</a> <img
src="../scipics/_wiki.png" />
Next time be less vague when starting a new topic; put a little thought into it, and show that you've done some research on your own. Reporting my
reply as "useless" and a "troll" post is uncalled for, considering your initial post. Don't blame others for your lack of understanding and clarity.
[Edited on 2.8.13 by bfesser]
Sublimatus - 2-8-2013 at 12:52
A vacuous question earns an insincere response. 
math, do you have a specific problem you're trying to solve? It is essentially impossible to answer your question as posed.
Mailinmypocket - 2-8-2013 at 12:53
The Antarctic ... lol
Your question is very vague though, cooling for a reaction vessel... Cooling for a room... (There's a difference in size, amongst other factors). For
a reaction vessel... An ice bath I guess? For a room... An air conditioner I suppose? Elaborate a little bit on your inquiry, what are you trying to
cool?!
[Edited on 2-8-2013 by Mailinmypocket]
math - 2-8-2013 at 13:31
Sorry about the question but I need a dust up of cooling methods.
I'd like to know what are some electric cryo-generators called like and if relatively inexpensive ones exist, and if say cooling iron pieces in liquid
N2 would be more cost-effective in cooling a room air temperature (by conductivity and reachment of equilibrium temperature between the iron mass and
air), you know the classical m1*c1*T1 formula where m is mass, c is the heat capacity proper of the material and T is its temperature.
Thank you
franklyn - 4-8-2013 at 21:27
www.sciencemadness.org/talk/viewthread.php?tid=6023
Google ' Magnetocaloric effect ' , the rare earth metal Gadolinium exhibits this most.
.
zenosx - 23-8-2013 at 19:48
Very vague question,, barring liquid nitrogen maybe acetone + dry ice bath? Please elaborate.
Fantasma4500 - 24-8-2013 at 04:50
if you want to cool yourself down, put a thin layer of water on your hands and wave them around, it will feel as if you have acetone on the hands,
which ofcourse will be even colder if you use that instead of water
for cooling down reactions you can put a beaker reacting in some cup of a sort and put running water over it, more surface the better ofcourse
salt can be added to cool furthermore
ice salt and water is also really great
for rooms you just want to remove the air or do some reactions alike titanium chloride (or was it titanium perchlorate, that decomposes
endothermically?)