Please explain why the freezer is the top compartment in a fridge

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    Explain fridge
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Discussion Overview

The discussion revolves around the design choice of placing the freezer compartment at the top of a refrigerator, exploring the reasons behind this configuration. Participants consider various factors including thermodynamics, airflow, and efficiency related to the placement of the freezer in relation to the refrigerator's cooling system.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that heat rises, implying that heat flows from the lower compartment to the upper compartment, which may influence the design.
  • Another participant proposes that the design may involve the dumping of cold air into a smaller space, potentially affecting efficiency.
  • A different viewpoint highlights the importance of the location of the cooling coil and vents in determining the efficiency of the refrigerator's design.
  • One participant raises a question about the efficiency of side-by-side refrigerators and suggests that the placement of the freezer may depend on achieving a smoother gradient of heat, noting that the floor provides better insulation.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the reasons for the freezer's placement, indicating that the discussion remains unresolved with no consensus reached.

Contextual Notes

Participants mention various factors such as heat rising, airflow dynamics, and insulation properties, but do not clarify the assumptions underlying these claims or how they interact with each other.

gamecube999
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Can somebody give me a detailed explanation of why the top compartment of a fridge is usually lower than that of the lower compartment?

I am thinking that because heat rises, so the heat flows from high energy (lower compartment) to low energy (top compartment)?
 
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Because they dump more cold air into a smaller space...?
 
It's the location of the coil and the vents.
 
Please restate your question. Side-by side refrigerators, I recall, are least efficient (or is that more expensive?) Whether the freezer compartment on top or on bottom is more efficient depends on which realizes the smoother gradient of heat. The floor is more readily insulating than any other side, and the heat rises, two good reasons to have the freezer on the bottom, if it weren't for my darn back!
 

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