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ricecrispi · 09-15-2005, 06:06 PM

I have some spare WCing gear around so I decide to make use of it and TRY to setup a peltier waterchilling setup. I was planning to sandwich 172 watt 40x40mm pelt between two Polarflo TT blocks.

40x40mm size was a big factor. I thought the blocks base would cover the area.....
Did some math and they only cover 38.89x38.89 mm square area on a circluar base. So the corners where the leads enter are not covered.

1)Can I still run them like this or should I get a coldplate? If no.
2) Where can I get a 50x50mm or larger coldplate? I've couldn't find any with a search (decent, but not exhaustive) on google, online cooling retailers, this forum and some other forums. Found 40x40mm. Would I have to get someone to machine it for me.
3) What paste should I use? Is basic white silicon grease good enough for the job? I see alot of ceramique being suggested or used.

09-15-2005, 06:06 PM	#1
ricecrispi Cooling Savant Join Date: Jul 2005 Location: california Posts: 429	TEC coldplate & paste Questions I have some spare WCing gear around so I decide to make use of it and TRY to setup a peltier waterchilling setup. I was planning to sandwich 172 watt 40x40mm pelt between two Polarflo TT blocks. 40x40mm size was a big factor. I thought the blocks base would cover the area..... Did some math and they only cover 38.89x38.89 mm square area on a circluar base. So the corners where the leads enter are not covered. 1)Can I still run them like this or should I get a coldplate? If no. 2) Where can I get a 50x50mm or larger coldplate? I've couldn't find any with a search (decent, but not exhaustive) on google, online cooling retailers, this forum and some other forums. Found 40x40mm. Would I have to get someone to machine it for me. 3) What paste should I use? Is basic white silicon grease good enough for the job? I see alot of ceramique being suggested or used.