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I await your results with baited breath.As a "Federally Certified HVAC Technician" I can truthfully state that the "average" refrigerator/freezer's Compressor today uses only 25 watts. The rest of the power consumed is for all the little bells and whistles like lights and fans and sensors and on and on. Also "watts" is "Watts" no matter what. Whether it is AC or DC it doesn't matter. As far as the size being an indicator of power that is ridiculous, especially in todays world of "extreme magnets" . Haven't you seen the size of modern diesel engine starter motors ? Compared to motors from the 1950's they are absolutely tiny ! Modern electronics and powerful magnets make this possible. As far as the size of the "evaporator" and "condenser" goes, they are equivalent in size (if not bigger) to the modern hotel room refrigerator. Another thing you mentioned is hot items taking longer to cool down. Didn't you take "Physics" in school ? Don't you remember all those experiments cooling down hot items ? Since the "atoms" of a heated item move faster when hot, they also give off hear quicker then cool atoms do.
Since there is all this confusion about this refrigerators ability to cool or freeze something I'll also test mine tomorrow. I'll put some water jugs in it and see how long it takes to totally freeze them too.
Only being a little sarcastic in response to the tone in your response. I'm more than slightly interested in this kind of stuff. I love this stuff. I'm that kind of geek. And I'm not afraid to be wrong.Sarcasm doesn't suite you.
As of this moment the water bottles have been in the freezer for 3 hours. I checked them and they are all "slushy ice" . In a few more hours I expect them all to be frozen solid.
What's your outside air temperature ? I did my test inside with a temperature of 70 F . I would be surprised if your's actually takes 9 hours to freeze solid though. Unless it is not performing properly.The containers have both reached 32 degrees. The trend has flattened out as expected. Looking at the rate of cooling the estimate of about 135 btu/hr is holding up. Assuming this energy transfer rate continues it should take approximately 9 hours to completely freeze 8.5lbs of water.
The compressor has not cycled off since the test began.
Here are the trends so far. The jugs are just about frozen based on the temperature getting a little noisy. 9hrs is looking like a reasonable estimate based on the calculations during the initial cool-down of the jugs.What's your outside air temperature ? I did my test inside with a temperature of 70 F . I would be surprised if your's actually takes 9 hours to freeze solid though. Unless it is not performing properly.
My initial temperature rose to -10 C after putting in the water bottles, from a temperature of -23 C . It stayed there for the first three hours. After that it started to go down rapidly. Like I said earlier, this unit performs like any standard freezer. It just has the ability to use 12V, 24V and 120 Volt AC and internal batteries to power itself.
You do realize your taking this way to seriously right ? That's OK though. Good data is always useful.Here are the trends so far. The jugs are just about frozen based on the temperature getting a little noisy. 9hrs is looking like a reasonable estimate based on the calculations during the initial cool-down of the jugs.
Once this test is done I'll reset and test the other unit then do one with the inside freezer as a comparison.
That personality trait is for me both a gift and a curse.You do realize your taking this way to seriously right ? That's OK though. Good data is always useful.
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