Why are Freezers Located at the Top of Units?

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SUMMARY

The placement of freezers at the top of refrigerator units is based on the principles of thermodynamics, specifically the behavior of air temperature and density. When air is cooled, it contracts and becomes denser, allowing it to descend. This design ensures that the cold air generated by the freezer can effectively circulate downwards, maintaining a consistent cool temperature throughout the refrigerator. The discussion highlights the importance of this airflow in optimizing refrigeration efficiency.

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Please can anyoine explain to me why a freezer is located at the top of a unit when i understand that hot air rises.

I have searched for some answers but cannot find an explanantion.

Thanks
 
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When air becomes hot it expands and so the density decreases.and hot air goes up.just the opposite thing happens when air is cooled..It contracts,its density is increased and it comes down.So when the freezer cools down the top layer of the air in the refrigerator,the cold air comes down slowly.This process continues and the whole of the refrigerator remains cool.For the same reason,you must fix the AC higher than your bed level or body level to really enjoy the coolness.
 
sdb16 said:
Please can anyoine explain to me why a freezer is located at the top of a unit when i understand that hot air rises.

I have searched for some answers but cannot find an explanantion.

Thanks

I would say this : when air is cooled, it comes down (you know the reason why, right ? :)). So putting the freezer on top makes sure that the cooled air has plenty of room to come down. This way, the refrigerator stays cool.

marlon
 

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