Show HN: Does Dry Ice Really Cool Five Times Better Than Regular Ice?

https://www.jeremymorgan.com/tutorials/raspberry-pi/dry-ice-vs-wet-ice/

by JeremyMorgan • 10 years ago

6 3 10 years ago

tired_man2• 10 years ago

It would be interesting to see this repeated, but allowing the melted water to drain. I think that this might be why the wet ice seemed to keep cooling for so long.

JeremyMorgan• 10 years ago

Yep, I agree. The steep drop off with the dry ice was likely after it dissipated, and the air temp recovered. The question then would be, when to drain the water though.

tired_man2• 10 years ago

I'd add a drain in a bottom corner to allow drainage as it melts. I think the temp in the dry ice container would remain lower if there were enough thermal mass, too.

Have you ever played with dry ice? I just read of someone using it to remove old tile and mastic from a concrete floor. There was also an article on another site describing a city dropping chunks into rat holes to kill rat nests.

Show HN: Does Dry Ice Really Cool Five Times Better Than Regular Ice?

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