let's learn why Peltier devices are not actually very cool in this new video:
-
let's learn why Peltier devices are not actually very cool in this new video:
-
Jernej Simončič �replied to Technology Connections last edited by
@TechConnectify Just curious – how thick are the walls on that cube fridge in the video, they looked very thin to me? I've got a similar fridge at my weekend house (where I just happen to be at the moment), and that one has 55 mm walls (the fridge itself is 45 cm wide).
-
Technology Connectionsreplied to Jernej Simončič � last edited by
@jernej__s The are indeed thinner, about 30mm
-
Alex Hallreplied to Technology Connections last edited by
@TechConnectify Fun and informative, as always. I have a question about a comment you made about your big fridge, though. You said the bottom freezer was a knock against it. I thought the freezer being on the bottom helped to keep cold air inside when opened, reducing the energy needed to re-cool the freezer. Why is a bottom freezer a bad design? Thanks.
-
Technology Connectionsreplied to Alex Hall last edited by
@alexhall A chest freezer holds onto air, yes, but anything with a slide-out drawer will spill out all the air every time you open it.
But that's not the main issue, it's that US fridge designs use a single evaporator in the freezer and the fridge is simply fed air from the freezer. Top-freezer models get help from the air in the freezer being denser so it mostly just falls in through a baffle which opens and closes. Bottom-freezers needs fans to push air up and into the fridge compartment.
-
Tobias Klausmannreplied to Technology Connections last edited by
@TechConnectify I will love you forever for skibidi heat pump.
That is all.
-
steveman1123replied to Technology Connections last edited by
@TechConnectify so I actually did a little research on peltier plates back in undergrad. I was more interested in running them in reverse where a thermal gradient across the sides can generate current (which I think is much more interesting anyway). One of the issues is that thermal conductivity and electrical conductivity and pretty tightly linked (see why aluminum and copper are used for heat sinks and pipes), so trying to have something that can transport
-
Drizzt321replied to Technology Connections last edited by
@TechConnectify Good video again! However, something you should also be aware of, is there's a LOT of newer, not too expensive, 12/24v small compressors for chest/cooler size fridges as well as actual cube and larger size ones for off-grid (solar/battery) houses OR for RV/trailers. Much better for road trips, they're legit fridges, and typically do 45-55W while running.