Connextras Freezer Follow-up

+1 theres gotta be some magic involved

Ben Jones

I hope you're still considering explaining the propane/fire/no moving parts fridge (designed in part by Einstein) where you light a fire in one part and water freezes in another. Those things have baffled me for years

Here in Ireland, we call those double door fridges American style. One topic worth comparing is American vs European washing machines. Even the largest domestic washing machines here are tiny compared to the average size in the US. The only way to get something equivalent is through a commercial appliance supplier, which unsurprisingly are very expensive. The average cotton wash cycle here is about 4 hours compared to 1 hour over in the US.

Seán Byrne

Oh, and another reason why the ice dispenser in the door is a bad idea is because if the fridge has a slightly bad day, the ice will begin to melt! Thru that little flap! Onto your hardwood floors! Ask me how I know.

Darren Pierce

The thin strip between doors on a French model is called a "mullion", and it's heated to prevent condensation from forming on it (it's thin, and not very insulated). On mine, it sweats a little anyway on super humid days.

Darren Pierce

Those seals can and should be replaced. As I mentioned below, at some point they contained heating elements that will require electrical connections, so be careful removing the old one.

clickallnight

If anything is going to get us through an interminable lockdown, it's going to be a deep dive into the comparative efficiency of freezers.

Mark Stradling

Dated info here, but my understanding is that better fridges and freezers have heating elements in the magnetic door seals to eliminate condensation and mildew. This absolutely effects the efficiency, as it draws extra power full time, and introduces some of that heat back into the interior. Time for Extra-Extra Fridge Thoughts? \o/

clickallnight

He literally brought up that point in the main video though?

Don't know if someone mentioned it, but a full fridge or freezer is more efficient than a partially filled unit.

Allen Boogaard

lol, I don’t think you have that low a standard for audio. You likely just have a following that are more vocal in their opinions on the subject. If your audio was perfect, they’d find something else to fault, lol. You’re doing well, keep at it. Also, the jukebox vids were awesome.

Spectre

I don’t think the magnetized rubber strip is as weak of a point as you think, and by that I mean, that strip is not the only thing acting as a barrier. In older fridges, maybe that is true, but in many fridges, the plastic of the door and door frame make a snug fit—basically insulation to insulation—so that the magnetized strip is just to hold the door, and not the air

Matthew Dezii

Refrigerator are opened several times a day at least and as such run nearly constantly since the air inside is constantly needing to be re cooled. Chest freezers on the other hand are expecting to be opened far far less often. I'm not saying that insulation isn't important, but I think it's not necessarily as large of an effect. We are careful to air seal houses at build time now because the gain in efficiency is worth so much.

This is true but the trouble is a cube becomes an unwieldy shape as the fridge or freezer gets larger. If we simply scaled the cube up that'd be great, but it would be a very impractical design

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In your discussion of surface area to volume ratio, you seem to say that cubic freezers are inefficient. But a cube is actually the best shape to minimize surface area. Take your example of a 2 ft^2 freezer. The 1x1x2 ft version has a surface area of 10 ft^2, as you said. But the cube version with the same volume has a side length of 2^(1/3) ft, and thus a surface area of 6*2^(2/3) ≈ 9.5 ft^2, a savings of 0.5 ft^2. This difference becomes more pronounced as the shape of the freezer becomes “less cubic”.

Matt Goldman

Changed my mind. I always felt my french door fridge was not optimal and now I've got confirmation. Will definitely go back to a conventional fridge when I replace this one

Kajico

I think the sleep aid affected your writing, which makes you effectively correct.

A lot of people have the same questions as you, as a result a lot of research goes into understanding the physics behind losses and designing the standards behind fridges/freezers, you’ll find a major focus on designing small & efficient units for developing countries. Here’s some publicly available regulatory stuff from here in Australia as well as examples of research papers (Warning: big long equations with strange squiggles). https://ris.pmc.gov.au/sites/default/files/posts/2018/05/household_refrigerators_and_freezers.pdf https://www.researchgate.net/publication/289072372_Development_of_a_Chest_Freezer_-_Optimum_Design_of_an_Evaporator_Coil https://www.researchgate.net/publication/32964473_An_Experimental_Analysis_of_Cycling_Losses_in_Domestic_Refrigerator-Freezers https://www.researchgate.net/publication/224856665_Moisture_transfer_and_energy_losses_of_household_refrigerator-freezer_during_the_closed_door_operation https://www.researchgate.net/publication/328329628_Methods_of_calculation_of_energy_losses_of_the_refrigerator_when_opening_its_doors

WizardTim

The seal around my freezer door is wearing out. It would be great to come up with a better concept.

Brett Walton

G'night! Even though it's morning here. Sleep well.

Mark

Did you use a compressor to compress it?

Simon Mikkelsen

Wow, something new to watch during my bout of insomnia? This is more blessing than you could possibly imagine!

Sean Hearrell

shoot it's "effects" not "affects" isn't it?

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