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Originally Posted by wfc31
xtrekker,
thanks for ur info, so i have got mysel a TEM from one of the SLT basement shop at S$19, the TEM is 12V 6A rating, i belif it is a 75W TEM.
after i connected the TEM with cold fin and heat sink+fan, i do a same one as ur previous box microchiller, the problem now is i cant get the water cool down to 24C, water temp only can achieve at 27.8C even i supply a 12V 5A supply to the TEM.
when i test the TEM at first, the cool fin only acheive at 21C and the heatsink at 38C, i couldnt' get the ice forming at the cold fin as what shown in ur picture, i really piss-off with the project i have done.
is there any thing wrong with my set-up? or i'm getting a lousy low quality TEM?
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I think i bought the same 6A TEM (peltier) like your's from SLT last week.
I got 1 nano tank in office which do not need chiller due to 24 hr air cond.
Today just started my chiller project for my 12.5 inch x 9 inch x 9 inch tank at home without air cond.
I do the test with direct tap water into tank. Water temperature from 28 degree bring down to 24 degree even lower at midnite like now.
My TEM(Peltier) is attached onto filter and it is detachable.
I am trying to ON it for 24 hours and monitor the temperature.
I do not know how long the TEM can last if i turn on it for 24hrs everyday.
Anyway thanks for xtrekker & silane for the info.....
Will upzz when my power is back....
Here is the step by step intro for my chiller setup.
Upzz me if you find my chiller picture is helpful to you.... 