Quote:
Originally Posted by glend
I received the TEC system that I ordered from Alibaba (China) for $19 (free postage). Photos are attached. I ran a test this morning and it works (which is a surprise given the drink can cooler I bought previously that did not work at all).
Anyway in the few short minutes I tested it (ambient was 30C) , the cold side (small fan side) dropped quickly to 20C and the hot side went up to 32C. I suspect the cold side would have been much better if it was actually boxed in as the ambient was flowing around the sink. I will get it boxed in foam for the next test, then work out how to attach the cold side to my cold finger from the laptop.
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Hi Glen. Any further results from your Alibaba TEC? I'm sure it's the same as mine - which is listed in ebay as:
Functional Thermoelectric Peltier Refrigeration System Kit Cooler Fan TEC1-12706
I just did a second test in case I stuffed up the first and the results were only marginally better. I built a small aluminium box about 80mm cube, insulated it on the outside and sealed it. The temperature dropped by 12C in about 10 minutes and stayed at that level. Ambient was 30C. The idea behind this test was to mount a DSI II CCD in it and use it for planetary/lunar stuff. I suppose if I can get the temp of the camera down by 10-12 degrees it should show up in the sensor sooner or later. I was hoping to avoid doing a cold-finger mod on the camera hence this workaround.
Peter