FrostyTech.com Heatsink Reviews and Analysis
> GO < Search
TOP 5 BEST Heat Sinks     SEARCH     News     Reviews    
Follow Frostytech on FacebookFrostytech News RSS FeedFollow frostytech on Twitter
° Reviews and Articles
° Breaking News
° Mfg's Index
° Top 5 Heatsinks
° Top 5 Liquid Cooling
° Top 5 Low Profile   Heatsinks

Top 5 Heatsink Charts


NoFan Computer
What's New in Heatsinks?
°  Noctua NH-C14S CPU Cooler Review

°  be quiet! Silent Base 800 Window Case Review

°  be quiet! Shadow Rock LP Low Profile CPU Cooler Review

°  Noctua NH-C14S CPU Cooler Review

°  Dark Rock TF from be quiet!

°  Scythe Tatsumi CPU Cooler Review


   - or - Best 5 Heatsinks?

The fanless spinning heatsink - FrostyTech.com The fanless spinning heatsink
Fri Aug 12, 2011 | 3:03A | PermaLink BY: Max Page
www.frostytech.com
"For a 10 cm diameter device, an air gap resistance of 0.02 C/W is certainly feasible. I read one comment a couple of days ago where someone asserted that the laws of thermodynamics state that air is an insulator. The key thing to keep in mind that it’s a matter of degree. Air isn’t incapable of conducting heat. Moreover, the violent shearing of the air residing in the gap region between the stationary and rotating surfaces generates substantial convection. In fact, in later version we’re experimenting with the introduction of surface textures that do a better job of disturbing the air to promote convective heat transfer than when you simply have two smooth surfaces.

www.frostytech.com

Some commenters suggested filling the air gap region with some kind of thermally conductive fluid. This seems logical, but the problem is that frictional shearing losses become prohibitively large even at low rotation speeds. It’s not that it wouldn’t work at all, but that it wouldn’t work very well; thermal conductivity is important, but so is viscosity. If you can’t spin the heat-sink-impeller reasonably fast, you don’t get much of a boundary layer thinning effect."

"

Read more at New Scientist or read the research paper

"
FULL STORY @ EXTREMETECH
(http://www.extremetech.com/computing/90272-the-fanless-spinning-heatsink-your-questions-answered-by-the-inventor)

Recent News Stories
Noctua NH-C14S CPU Cooler Review 07/31
be quiet! Shadow Rock LP Low Profile CPU Cooler Review 07/29
Noctua NH-C14S CPU Cooler Review 07/29
Dark Rock TF from be quiet! 07/29
Scythe Tatsumi CPU Cooler Review 07/28
SilverStone TD02-E Liquid CPU Cooler 07/28
Deepcool GamerStorm Assassin II 07/28
Noctua NH-C14S CPU Cooler Review 07/28
be quiet! Shadow Rock LP Cooler Review 07/28
be quiet! Shadow Rock LP Low Profile CPU Cooler Review 07/24
more...
FrostyTech's Recent Cooling News Index & Archived Cooling News

News Categories
» Audio / Sound » Beginners Guides » Benchmarks
» Biometrics » BIOS » Business / Industry
» Cases » Chipset » Computer / SFF PCs
» Cooling / Heatsinks » CPU / Processors » Digital Cameras
» Drivers » Editorial » Games
» Gossip » Hard Drives » Hardware
» Home Theatre » Imaging » Memory
» Mobile Devices » Monitors » Motherboards
» Mouse Pads » MP3 Players » Networking
» Notebooks » Operating System » Optical Drives
» Overclocking » Peripherals » Power Supply
» Press Release » Printers » Servers
» Site News » Software » Tips
» Tradeshows / Events » Video Cards » Web News
   Looking for something a little farther back? Try FrostyTech News Archives: 1999 - present
Resources
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects

Noctua NH-U9S Compact Lower Noise Heatsink Review

ID-Cooling SE-214X Heatsink Review

BeQuiet Pure Rock Heatsink Review

DeepCool Gamer Storm Lucifer Heatsink Review

Raijintek Tisis Dual-Tower Heatsink Review

Reeven Okeanos RC-1402 Heatsink Review
...More Articles >>

 

Websites you may also like:
PCSTATS

Google Search Frostytech

Time stamped: 12:05PM, 08.01.2015



FrostyTech.com
Since June 1999

Find a Heatsink / RSS Feeds
Latest Heatsink Reviews
Top 5 Heatsinks Tested
News RSS Feed
Reviews RSS Feed


Social Media
Facebook Fan Page
Twitter
Pinterest


FrostyTech.com Info
Feedback
Contact Us / Heatsink Submissions
Submit News
Legal

Contact the Suite 66 Advertising Agency
© Copyright 1999-2015 www.frostytech.com. All Rights Reserved. Privacy policy and Terms of Use
Images © FrostyTech.com and may not be reproduced without express written permission.