How Freezers Work

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How Freezers Work
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Steps followed by freezers work

• A freezer works by drawing the heat out of the
  freezer compartment.
• To start the process, the refrigerant-in gas
  form-goes into the compressor where the
  compression process causes it to get very hot.
• The temperature of the mist is around -27 degrees
  at this point, and it takes the heat from the
  freezer compartment with it.

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How it Works
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Freezers
Modern Freezers
To get an idea of how it works, picture a river
as it winds through the mountains and countryside
en route to the ocean.

Refrigerator
Refrigerant flows and transforms from liquid to
gas and back in a similar way.
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• Some of the most commonly used refrigerants are
  HFCs.Other refrigerants, such as CFCs and HCFCs
  are highly regulated and banned from use in many
  products in the United States.

• The first freezer component it enters is the
  compressor (usually found in the lower back of
  the freezer). The compressor squeezes the vapor's
  particles, which heats it up and converts it into
  a high-pressure state.

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The Basic Components of a Freezer

• The components of a freezer are as follows
• A compressor
• A condenser
• An evaporator
• A capillary tube
• A thermostat

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1) Compressor
The compression process makes this low pressure
refrigerant a hot, high pressure gas.
2) Condenser
The fins conduct this heat away from the coils.
The capillary tube regulates the pressure of the
refrigerant as it enters the coils.
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3) Evaporator
A cold, low pressure gas is then produced when
the liquid refrigerant expands, boils, and
evaporates into the evaporator coils.
4) Thermostat
The thermostat tells the compressor when to be on
by supplying electricity to the compressor.
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Development of the Modern Freezer
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How it works
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Important Points Of Freezers

• The refrigerant begins the cooling process as a
  vapor under low pressure.
• The compressor squeezes the vapor's particles,
  which heats it up and converts it into a
  high-pressure state.
• As the vapor travels through the condenser coils,
  it loses the heat but retains its high pressure.
• Vapor compression isn't the only way to create a
  super-cold food storage environment.

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Freezers temperature

• Bacteria are usually the cause of food decay, but
  they can't grow as well or at all in freezing
  temperatures, which are at 32 degrees Fahrenheit
  (0 degrees Celsius) or lower.
• Food spoils more slowly if you lower the liquid
  inside it - the water molecules -- to freezing
  temperatures.

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Types of Freezers
There are two principal types of freezer 1)
Chest Freezers (sometimes called
dive-in) 2) Upright Freezers (sometimes
called reach-in)
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Chest Freezers

• Chest freezer is that it is difficult to get to
  food stored at the bottom of the freezer.
• Always buy a chest freezer which has baskets
  that hang from the top.
• Most units are manual defrost
• High energy efficiency
• Lift-out drawers for easier organization.
• Range in size from 5.0 cu. ft. to 25.0 cu. ft.

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Upright Freezers

• Upright freezers open like a refrigerator and
  include a variety of shelves and storage drawers.
• Units vary in size and offer a wide range of
  capacities.
• Take up less floor space for easier placement.
• Lighted interior enables you to see and organize
  food more easily.
• Range in size from 5.0 cu. ft. to 21.0 cu. ft.

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Buying a New Freezer
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• Depending on what your budget and needs are,
  today's freezers have all kinds of
  technologically advanced bells and whistles.
• In which features you select, your new unit could
  cost anywhere from 500 to 4,000 or even more.

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Features you might look for when considering your
next freezer purchase
1) Digital external temperature regulator
It keeps you from having to reach into the back
of a cold freezer to twist an icy knob that's
frozen in place.
2) Automatic ice-makers
Icemakers in the door that you access externally
will make your freezer last longer because that's
one fewer time you don't have to reach inside and
risk wear to the rubber seal.
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3) Cold water filter
You get fresh, chilled water dispensed from the
freezer door.
4) Cooling zone compartment
Available in some freezer combos is a hidden tube
routing super-cold freezer air to a space in the
fridge designed for storing items that perish
quickly, such as milk.
5) Automatic defrost
We talked about earlier, this should prolong the
life of your freezer so you won't have to go
freezer shopping again anytime soon.

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