Pro/Forums - View Single Post - 85watt chiller Aircooled? 4-5c drop?

Butcher · 04-11-2004, 12:14 AM

You'll get at best about 0.5C doing that. The water will pass through the block so fast it will barely cool it.

Besides, your hotside will be roasting hot. Assuming 60W pumped, you're looking at sinking around 140W off the hotside (at 12V an 85W TEC will draw approximately 6.5A, so you have 6.5*12*12 = ~80W from the TEC plus the 60W pumped). With a 0.35C/W HSF that's a rise over ambient of nearly 50C - you're looking at a 75C hotside there, ouch.

04-11-2004, 12:14 AM	#15
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	You'll get at best about 0.5C doing that. The water will pass through the block so fast it will barely cool it. Besides, your hotside will be roasting hot. Assuming 60W pumped, you're looking at sinking around 140W off the hotside (at 12V an 85W TEC will draw approximately 6.5A, so you have 6.51212 = ~80W from the TEC plus the 60W pumped). With a 0.35C/W HSF that's a rise over ambient of nearly 50C - you're looking at a 75C hotside there, ouch. __________________ Once upon a time, in a land far far away...