Quote:
Originally Posted by lincpimp
Something like this, minus the fan?
http://cgi.ebay.com/Scythe-SCKTN-300...item4152518a72
Guessing I could just mount it to the top of the esc? My only issue with the hydra hv is that is has a stacked board design with multple water cooled heatsinks sandwiched in there. So just trying to cool one of them would be a waste of time. If I could do a heat pipe off each channel (2 per board) that could be an option.
I was just thinking that a closed system filled with something conductive would transfer the heat . Somewhat like a thermosiphon. But the heat pipe looks like a better idea.
The wiki page mentions making a heat pipe by just boiling the liquid in the pipe then capping it off. I am guessing you just want the liquid to start to boil when capping it off, so when it cools it will pull a vacumm? They mention that the liquid volume will be much less than the total volume inside of the pipe, 10% maybe? Or less?
Interesting idea. My idea and placement would allow for gravity to cycle the fluid back to the heat source, and airflow for cooling would not be an issue while moving. |
Yeah, pretty much any of today's air cooled CPU heatsinks use heatpipes now. The Wiki article mentioned that the heatpipe is actually more efficient than the same cross area of solid copper. Although, the liquid medium chosen should match the temperature you want to run the ESC at. But since ESCs are around 90% efficient (depending on throttle level), even 500w continuous is "only" 50W. Much above or below the liquid "tune" the heat is transferred mostly by the pipe itself (not the wick inside). Gotta be careful about what liquid you use depending on if you plan to run in the winter or not. Wouldn't be much use if the medium freezes, especially since it will happen sooner under a vacuum.
Most of the "movement" is not gravity fed, but done via the wick and thermal differences.