The cooling element in freezers is at the top in order to keep it its coolest. This is because in a freezer or fridge the heat travels using thermal convection. In your kettle you have a the heating element at the bottom so the water particles are less dense and rise upwards beofore cooling at the top and becoming colder denser particles that then replace thehot particles at the bottom. This cycle carries on....however in a fridge or freezer you want the particles to be colder and denser so the cooling element is at the top so it allows the particles rise then to cool faster at the top. Its basically the reverse of what you have in your kettle, that allows you to boil your water!
This is a throwback from earlier times, when ice boxes were literally boxes which held ice. The cold air would fall, and cool the food below. Cool air does not rise, which is why the ice box was not below the food.
In modern refrigerators, this is no longer an issue, and many manufacturers are now putting the freezer section at the bottom, rather than the top.
In the old days and still in many refrigerators, the freezer was actually inside the refrigerator cabinet. It is the coldest place in the fridge where the cooling coils are located, and when cold air leaks out of it, that cold air falls down into the outer cabinet of the refrigerator. Warm air from the refrigerator portion rises up to the freezer section and gets cooled in turn. This is also why the vegetable "crispers" are located in the bottom of the fridge, I believe--the coldest air from the freezer falls there first, keeping the fruit and veggies freshest.
The ice compartment is placed at the upper portion of the refrigerator, because the lower compartment is warmer and this might cause the ice to melt.
You can find a fridge with the freezer compartment at the bottom almost in any store. They can be on the side too.
Cool air tends to move downwards.
the air particles tend to move downwards to make the fridge cool
The cooling element is on top of the fridge because cold air goes downwards, therefore making the fridge cooler.
the reason old freezers are on the top of old fridges is because of convection
the cooling compartment in a freezer is at the bottom because most people there is more heat at the bottom then at the top of a freezer
Because in the freezer cold air present , cold air denser so it flows down to the rest of the compartment and thus cooling rest of the compartment
It is not always at the top as its a refrigerator so it can cool any compartments it contains it contains due to its special mecanism
My freezer is at the bottom. The freezer being at the top isn't universal, it was just a common design for a time.
the top part is cold because that's where the freezer is and the refrigerator is the bottom part.
You don't require a fan as the cold air from the freezer cools the contents of the fridge as it falls to bottom of the cabinet thermodynamically.
You can buy a refrigerator with the freezer compartment at the bottom if you want It just seems easier to me to have the freezer compartment at the top of the refrigerator if you want to see what's in there without bending over
The freezer compartment is often located at the top of a refrigerator because warm air is less dense than cold air. The cooled air from the freezer compartment goes down, thus it is not lost.
In 1939 GE produced the first refrigerator with a freezer compartment as well as a cooling compartment
Because in the freezer cold air present , cold air denser so it flows down to the rest of the compartment and thus cooling rest of the compartment
It is not always at the top as its a refrigerator so it can cool any compartments it contains it contains due to its special mecanism
A refrigerator has a freezer and a cooler compartment. Very cold air from the freezer compartment is blown over the cooler compartment below to cool the product while a Cooler has no freezer compartment.
Bottom so less cold air escapes and most people use refrigerator more than freezer which will require less bending over.
To store frozen foods.
The refrigerator temperature control(s) is set to high. The refrigerator may have one or two controls.If it has only one control, it is used for the freezing(freezer) compartment andthe refrigerated(non-freezing) compartment as well. Simply lower the dial until the lower refrigerator stops freezing food but not so low that the freezer(upper) compartment stops freezing.If it has two controls, they should be labeled. One is for the upper(freezer)compartment and the other is for the lower(Non freezing/refrigerator) compartment. Turn down only the control for the lower(refrigerator)compartment until the food stops freezing.
The advantages are that the freezer is usually bigger than a top-freezer, and the refrigerator side is easier to.
My freezer is at the bottom. The freezer being at the top isn't universal, it was just a common design for a time.
My freezer is at the bottom. The freezer being at the top isn't universal, it was just a common design for a time.