There's a queston which i really can't figure out, theres a diagram of a fridge and a freezer at top and the question state: Explain why the freezer unit is placed at the top&Explain why the fridge has wire shelves. Any ideas? Thank You
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Air flow. There is only one cooling unit and that is usually in the freezer, as you need the coldest temps there. Openings between the freezer and fridge allow some of the cold air to fall down and cool the rest of the unit.
Hot air rises therefore cold air falls, so the cold air from the freezer falls down to cool the rest, and wire frame shelves allow the air to circulate better.
But in real life, small electric fans help circulate the cold air, so the freezer can be, and frequently is, below the main unit. And most units today do not have wire shelves but instead gaps between the glass shelves and walls allow for circulation.
Hot air rises therefore cold air falls, so the cold air from the freezer falls down to cool the rest, and wire frame shelves allow the air to circulate better.
But in real life, small electric fans help circulate the cold air, so the freezer can be, and frequently is, below the main unit. And most units today do not have wire shelves but instead gaps between the glass shelves and walls allow for circulation.
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^Nailed it
Hot air rises, cold air declines, so knowing that it makes sense that the freezer unit to be installed at top since cold air will fall to 0 height.
Hot air rises, cold air declines, so knowing that it makes sense that the freezer unit to be installed at top since cold air will fall to 0 height.
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1st guy's right.