Go Back   Pro/Forums > ProCooling Geek Bits > Cooling News From Around The Web
Password
Register FAQ Members List Calendar JavaChat Mark Forums Read

Cooling News From Around The Web You can post links, or comments about cooling related articles and reviews from around the web.

Reply
Thread Tools
Unread 10-18-2005, 07:48 PM   #1
Ice Czar
Cooling Neophyte
 
Join Date: Sep 2001
Location: High Altitude Lab
Posts: 94
Default Flow Boiling In Woven Mesh Structures

while researching a better PID controlled heating element for an environmental test chamber I came across the work of Richard Wirth at the Mechanical Engineering Department of the University Of Nevada, Reno

which may be of some interest (best taken in order) all PDF

High Performance Woven Mesh Heat Exchange
for The Missle Defense Agency via the Air Force Office of Scientific Research

Flow Boiling in Woven Mesh Structures for Cooling of High Power Micro Electronics
for NASA (FC-77 = Flourinert FC-77 (-110 deg C to 97 deg C)
__________________
LurkyLoo
Ice Czar is offline   Reply With Quote
Unread 10-19-2005, 06:44 AM   #2
Marci
Cooling Savant
 
Marci's Avatar
 
Join Date: May 2003
Location: Wakefield, West Yorkshire, UK
Posts: 485
Default

Hmmmm.... will have ratch round, see if we have anything on file from ESA work... doubt it, but wish we had!
Marci is offline   Reply With Quote
Unread 10-19-2005, 07:56 AM   #3
bobo5195
Cooling Savant
 
Join Date: Aug 2005
Location: uk
Posts: 400
Default

hmm interesting.
bobo5195 is offline   Reply With Quote
Unread 10-19-2005, 08:10 AM   #4
bobo5195
Cooling Savant
 
Join Date: Aug 2005
Location: uk
Posts: 400
Default

Edit: My bad whacked in the wrong numbers, into a calculation i think. i'll summerise it below im not sure what they are refering the area to.

C/W = 1/(u*D*D)

D=50mm (say for a big ihs mught be 50mm on side assumes constant temprature distribution which is wrong0
u=1000 (a good guess for their graph values)

c/w=0.4 (this does not include ihs or intergrated block heat spreader values i.e block thickness to take care of temprature difference in the cpu core)

One final edit, it should be noted that their cooling "fin" is rather small

Last edited by bobo5195; 10-19-2005 at 08:18 AM.
bobo5195 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 07:43 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...