4 ms·
Paraffin would be excellent. In fact, wax + copper was such an excellent combination to pull away thermal energy, this was the same mechanism used on the NASA L
by eksith 13y ago
Paraffin would be excellent. In fact, wax + copper was such an excellent combination to pull away thermal energy, this was the same mechanism used on the NASA Lunar Rover :
http://en.wikipedia.org/wiki/Lunar_Roving_Vehicle#Wheels_and_power http://en.wikipedia.org/wiki/Lunar_Roving_Vehicle#Wheels_and...
Basically, the heat was stored in the wax, which melted. Then, radiators would pull the heat from the wax out into space when the Rover was resting, which would solidify the wax again ready for the next run.
- samstave 13y agoWouk the wax be in a copper tube, or would you have a copper tube/rod in the center of a pool of wax? What about a series of smaller copper tubes that then stick out the bottom of the handle to transfer heat from inside to outer air?
- schiffern 13y agoCareful now. The space-rover-cooling regime is substantially different from the handheld-Seebeck-flashlight regime. What makes sense in one place doesn't necessarily make sense in the other. Think of sink/source temperature, cost/mass/performance/reliability tradeoffs, air vs. vacuum, power requirements, etc.
- tekromancr 13y agoThat's how coffee joulies work! http://en.wikipedia.org/wiki/Coffee_Joulies http://en.wikipedia.org/wiki/Coffee_Joulies
- Samuel_Michon 13y agoExcept that, you know, they don’t actually work. Even the creators admitted to as much. http://boingboing.net/2011/10/26/coffee-joulies-review-the-effect-is-barely-noticeable.html http://boingboing.net/2011/10/26/coffee-joulies-review-the-e...
- tekromancr 13y agoT.T But the idea was so neat!