Technology Connectionslet's learn why Peltier devices are not actually very cool in this new video:
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Alex Hall@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.
@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.
@TechConnectify I had no idea. Thank you! My fridge is similar to yours--bottom drawer freezer and two doors. I always thought it was more efficient because of the freezer being on the bottom. Now I know that's not the case.
Andre Louis@TechConnectify @alexhall We have a big Kenwood fridge-freezer with the freezer on the bottom as is common, always wondered why I hear fans sometimes.