Information on Refrigerators requested

Thread Starter


Joined Apr 24, 2021
for the monthly assignment, I was given a topic about the information on refrigerators tho its a dumb topic but still I need some information other than the internet.


Joined Nov 6, 2012
You didn't ask a question ........

You are on "the Internet" right now.

As long as you think a subject is "dumb",
you are not going to put much effort into learning about it,
so why are you in an Electronics-Forum expecting "information about
a simple household appliance that is covered in several thousand YouTube Videos ???

What "information" were you expecting ?????


Joined Aug 21, 2008
Welcome to allaboutcircuits. Would you explain with what aspect(s) of refrigeration you would like help?
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Joined Dec 29, 2008
The principle of 'throttling' a high pressure, completely liquified substance through an orifice, (the expansion valve) to a lower pressure vapor, (essentially a gas with liquid particles), allows a significant temperature difference to be produced. At the beginning of the low temperature state, the cold vapor travels from one end of a heat exchanger coil, and absorbs heat from an external source, like the refrigerator compartment, as it proceeds through the coil, and after a time arrives back at the compressor inlet as a pure gas with no liquid particles.
... The initial cooling process is known as the Joule-Thomson Effect, and is more readily visualized in terms of a Temperature vs. Entropy chart for a substance such as Freon. A quick search for a simple example did not seem to be fruitful. ...Maybe there is something on YouTube though.
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