If you add lots of empty 2l soda bottles, full of water, to a chest freezer, it has INSANE thermal mass. It can survive without power for like a week. Power almost never goes out for that long. https://twitter.com/enginoire1/status/1239735531338190853 …
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ⓘ Dogs don't have thumbs Retweeted Alex W
2/ cite for this? you're sure you're talking about thermal mass, and not thermal conductivity? naively, I'd think that pure water would be best bc not just the thermal mass, but also the heat of enthalpy - the ice melting absorbs a HUGE amt of heathttps://twitter.com/Player518214/status/1239911131554230272 …
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ⓘ Dogs don't have thumbs Retweeted Alex W
3/ yep, I'm deeply familiar with pykrete but note that the wikipedia article talks about thermal conductivity, not thermal mass.https://twitter.com/Player518214/status/1239914132528418818 …
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4/ yes, I know this sawdust was also used as insulation in the ice ships I have no reason to believe that sawdust increases thermal mass of ice / is an improvement for freezer prepping >>> https://twitter.com/ThatPimpHat/status/1239915864494952452 …
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5/ I think that you maybe actively don't want surplus insulation INSIDE the ice bottles, because that slows the rate at which the ice in the core of the bottles can suck heat out of the surrounding environment what you want is pure water ice so that convection inside bottles...
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6/ can bring 32° water to the surface of the bottles, and recirculate 33° water around inside the bottles to touch the core ice and dump energy worse case scenario is 1/8" thick jacket of 50° water just inside the bottle wall, surrounding an insulated fore of 10° ice / sawdust
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ⓘ Dogs don't have thumbs Retweeted Wu1f
7/ while I think that wood would lower the thermal mass, I think that this is the wrong explanation thermal mass isn't the same thing as mass theoretically a less dense substance can have more thermal masshttps://twitter.com/tketkr/status/1239918236487036929 …
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Replying to @MorlockP
You have a point. What is the specific heat of wood?
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