Pro/Forums - View Single Post - Question on thermoelectric cooler design.

Long Haired Git · 01-27-2006, 12:44 AM

What happens at the motherboard edge?
Is there a big heat sink there?
What is the air flow there like (CFM) and at what temperature is it?

"Maintaining at 85 degrees" is not useful info when ambient is ????

TEC's are useful only when you want to cool smallish loads to sub-ambient temps. Transmission of heat is only the thickness of the Peltier = less than 5mm.

You've got a load small enough, but no desire for sub ambient temps.
You've got a fair distance you wish to move the energy.

Given an assumption of ambient in a server in a air-conditioned data centre of 30°C, you've got a massive delta-T to work with (at 85°C) and such a small heat load.

What's wrong with an aluminium heatsink and fan?
If you want to get fancy and you have a hard ceiling temp, why not heat pipe(s)?

01-27-2006, 12:44 AM	#2
Long Haired Git Cooling Savant Join Date: Jan 2003 Location: Sydney, Oz Posts: 336	Re: Question on thermoelectric cooler design. What happens at the motherboard edge? Is there a big heat sink there? What is the air flow there like (CFM) and at what temperature is it? "Maintaining at 85 degrees" is not useful info when ambient is ???? TEC's are useful only when you want to cool smallish loads to sub-ambient temps. Transmission of heat is only the thickness of the Peltier = less than 5mm. You've got a load small enough, but no desire for sub ambient temps. You've got a fair distance you wish to move the energy. Given an assumption of ambient in a server in a air-conditioned data centre of 30°C, you've got a massive delta-T to work with (at 85°C) and such a small heat load. What's wrong with an aluminium heatsink and fan? If you want to get fancy and you have a hard ceiling temp, why not heat pipe(s)? __________________ Long Haired Git "Securing an environment of Windows platforms from abuse - external or internal - is akin to trying to install sprinklers in a fireworks factory where smoking on the job is permitted." (Prof. Gene Spafford) My Rig, in all its glory, can be seen best here AMD XP1600 @ 1530 Mhz \| Soyo Dragon + \| 256 Mb PC2700 DDRAM \| 2 x 40 Gb 7200rpm in Raid-0 \| Maze 2, eheim 1250, dual heater cores! \| Full specifications (PCDB)