The inner workings of o ld and m odern r efrigerators
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The Inner Workings of O ld and M odern R efrigerators. Eric Abercrombie Levi Algozino E-Design 100 Section 9 Pennsylvania State University. http://upload.wikimedia.org/wikipedia/commons/3/36/ExpensiveRefrigerators.JPG.

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The Inner Workings of O ld and M odern R efrigerators

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The inner workings of o ld and m odern r efrigerators

The Inner Workings of Old and Modern Refrigerators

Eric Abercrombie

Levi Algozino

E-Design 100 Section 9

Pennsylvania State University

http://upload.wikimedia.org/wikipedia/commons/3/36/ExpensiveRefrigerators.JPG


The inner workings of o ld and m odern r efrigerators

Refrigeration is the process of removing heat from an enclosed space generally by evaporating and condensing a substance (usually a CFC gas).

http://firstcoastac.com/faq/freon/


The inner workings of o ld and m odern r efrigerators

Several Types of Gases have been used in refrigeration systems as chemists discover more efficient systems.

Almost all have been phased out due to harmful effects to either the surrounding area or the o-zone layer.

http://upload.wikimedia.org/wikipedia/commons/thumb/3/30/Methyl_Chloride.svg/261px-Methyl_Chloride.svg.png

http://www.gcsescience.com/Ammonia-Molecule.gif

http://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Sulfur_dioxide.svg/467px-Sulfur_dioxide.svg.png


The inner workings of o ld and m odern r efrigerators

Cooling both a freezer and a refrigerator involves the coolant previously mentioned (usually Freon), getting put through a short process.

  • 1: Compression

  • 2: Release of heat

  • 3: Expansion

  • 4: Cooling of unit

  • 5: Back to compression

http://www.realsimple.com/food-recipes/tools-products/appliances/how-does-refrigerator-work-00100000087962/index.html


The interior refrigeration system

The interior refrigeration system

Heat absorbed

Substance vaporized

Substance liquefied

http://www.energyquest.ca.gov/how_it_works/refrigerator.html


The inner workings of o ld and m odern r efrigerators

When a special thermometer detects that the fridge has reached the proper temperature, it simply shuts off the motor and the refrigeration cycle is halted.

If a temperature is set on a refrigerator, the cycle just continues until the desired temperature is reached.

http://www.tmchallcrest.com/fridge-freezer-indicators.php


Works cited

Works Cited:

  • http://www.energyquest.ca.gov/how_it_works/refrigerator.html

  • http://firstcoastac.com/faq/freon/

  • http://inventors.about.com/library/inventors/blrefrigerator.htm

  • http://www.realsimple.com/food-recipes/tools-products/appliances/how-does-refrigerator-work-00100000087962/index.html

  • http://home.howstuffworks.com/refrigerator4.htm


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