I saw an advertisement for dry ice claiming it cools 5 times better than wet ice. Out of curiosity I had to know if this were true, or at the very least see how much better dry ice performs. I thought I’d gather up a Raspberry Pi and some sensors and find out, using some techniques from my Hands on Internet of Things course released recently.
This is the first thing I wondered. Does it keep it 5 times colder? Does it keep it cool 5 times longer? The claim is still a bit unclear, but based on my results it appears it keeps it close to 5 times colder, for about the same amount of time.
What I did was take a couple coolers, filled one with Dry Ice and one with wet ice, sealed them up and measured them for a few days.
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Dry Ice is dangerous because if you had enough of it and were locked in a freezer or a box truck with it, it basically replaces the air with carbon dioxide so you would not be able to breathe.
Quote – Dry ice is classified by DOT and IATA as a “miscellaneous” hazard, Class 9. Dry ice is considered hazardous during transportation for the following reasons: Explosion hazard: Dry ice releases a large volume of carbon dioxide gas as it sublimates.
Dry Ice Shipping – Environmental Health & Safety – End Quote
ehs.ucsc.edu/shipping/dry-ice.html
If you see a placarded vehicle with Class 9 on the four diamonds, it is carrying about 1,001 or more pounds of dry ice.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Dry Ice is dangerous because if you had enough of it and were locked in a freezer or a box truck with it, it basically replaces the air with carbon dioxide so you would not be able to breathe.
Quote – Dry ice is classified by DOT and IATA as a “miscellaneous” hazard, Class 9. Dry ice is considered hazardous during transportation for the following reasons: Explosion hazard: Dry ice releases a large volume of carbon dioxide gas as it sublimates.
Dry Ice Shipping – Environmental Health & Safety – End Quote
ehs.ucsc.edu/shipping/dry-ice.html
If you see a placarded vehicle with Class 9 on the four diamonds, it is carrying about 1,001 or more pounds of dry ice.