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RoboTech · 04-13-2003, 10:22 AM

Correction: After checking my notes the two TECs I used in the single loop test were both 172 watt Pelts (not 226 watt).

I found running a TEC chiller in the single loop configuration didn't work because the TECs themselves dump so much thermal energy into the water that it overloads the system (radiators).

I used TWO Black Ice Extreme radiators in parallel (each with a Panaflo 120 mm H1A fan @ 12 V) and that wasn't enough radiator and air flow to dissipate the heat of the TECs. I never mounted the waterblock to a CPU, just running on the bench with no-load, the water temp went up.

(2) 172 watt TECs: 24 VDC x 9.85 Amps X 2 = 473 watts
Amb. air = 20 deg C
Water temp (after equalizng) = 26 deg C

I tried a couple runs at lower voltages (22, 20, 18 VDC) on the TECs and that didn't help either. Theoretically it should work but the flow rates and radiator surface area will have to be very large.

I hope this helps...

04-13-2003, 10:22 AM	#14
RoboTech Cooling Savant Join Date: Sep 2002 Location: Cincinnati, OH Posts: 229	Correction: After checking my notes the two TECs I used in the single loop test were both 172 watt Pelts (not 226 watt). I found running a TEC chiller in the single loop configuration didn't work because the TECs themselves dump so much thermal energy into the water that it overloads the system (radiators). I used TWO Black Ice Extreme radiators in parallel (each with a Panaflo 120 mm H1A fan @ 12 V) and that wasn't enough radiator and air flow to dissipate the heat of the TECs. I never mounted the waterblock to a CPU, just running on the bench with no-load, the water temp went up. (2) 172 watt TECs: 24 VDC x 9.85 Amps X 2 = 473 watts Amb. air = 20 deg C Water temp (after equalizng) = 26 deg C I tried a couple runs at lower voltages (22, 20, 18 VDC) on the TECs and that didn't help either. Theoretically it should work but the flow rates and radiator surface area will have to be very large. I hope this helps...