15 Freezing Facts About Refrigerator

A refrigerator is a machine that keeps things cool. It is also known as a refrigerator or an icebox. For household use, it is normally kept at 4-5 degrees Celsius. People put food and drinks in it to keep them cold or fresh (unspoiled) for a longer period of time. A heat pump in a refrigerator removes heat from the air inside the refrigerator. The heat is transferred to the outside air. An electric motor is typically used to power the heat pump. Without a refrigerator, we can not imagine our modern lives. So here are interesting facts about the refrigerator.

1. In 1755, Scottish professor William Cullen invented a small refrigerating machine, which launched the history of artificial refrigeration. Cullen created a partial vacuum with a pump over a container of diethyl ether, which then boiled and absorbed heat from the surrounding air. The experiment even produced some ice, but it had no practical application at the time.
2. Ancient Iranians were among the first to invent a type of large evaporative cooler known as yakhchls, which used subterranean storage spaces, a large domed above-ground structure made with thick walls and outfitted with wind catchers (called “badgers”), which was walled off further into a series of “qanats,” or a style of aqueduct used in Ancient Iran.
3. Fred W. Wolf, an American, invented the first home electric refrigerator in 1913, which featured a refrigeration unit on top of an icebox. When William C. Durant introduced the first home refrigerator with a self-contained compressor in 1918, mass production of domestic refrigerators began.
4. Frigidaire introduced the first self-contained unit in 1923. The introduction of Freon in the 1920s increased the size of the refrigerator market in the 1930s. In 1940, home freezers with separate compartments (larger than needed just for ice cubes) were introduced.
5. Most refrigerators were white in the early 1950s, but from the mid-1950s to the present, designers and manufacturers have added color to refrigerators. Pastel colors like turquoise and pink became popular in the late 1950s/early 1960s. Some models were available with brushed chrome plating Earth tone colors, such as Harvest Gold, Avocado Green, and almond were popular in the late 1960s and early 1970s. Black became popular in the 1980s. Stainless steel became popular in the late 1990s. The Color Marketing Group has been attempting to coordinate the colors of appliances and other consumer goods since 1961.
6. Refrigerators function by converting the refrigerant circulating inside them from a liquid to a gas. This process, known as evaporation, cools the surrounding environment and achieves the desired effect. You can try this process for yourself by putting a drop or two of alcohol on your skin.
7. Most household freezers maintain temperatures ranging from 23 to 18 °C (9 to 0 °F), though some freezer-only units can achieve temperatures as low as 34 °C (29 °F).
8. There are around four types of Domestic refrigerators
   • Compressor refrigerators
   • Absorption refrigerator
   • Peltier refrigerators
   • Magnetic refrigerator
9. China is the biggest exporter of refrigerators in the world, exporting refrigerators worth US$12.4 billion which counts for 26.7% of total world exports. The second country is Mexico, with $4.8 billion worth of refrigerators. Third is Italy, with $3.1 billion worth of refrigerators.
10. The power consumption of a domestic refrigerator ranges between 100 and 250 watts. A refrigerator consumes between 1 and 2 kWh of total energy per day or about $150 per year per fridge.
11. A cold storage facility called 2800 Polar Way can be found in Richland, Washington, United States, where it dominates the region’s northern scenery. Both the largest automated freezer and the largest refrigerated warehouse in the world are located there.
12. The Large Hadron Collider is the world’s largest refrigerator, with temperatures colder than deep space. It is a 27-kilometer-long cryogenic distribution line on the French-Swiss border.
13. More items in the refrigerator make it more efficient. However, a full refrigerator doesn’t decrease energy use.
14. According to government statistics of the U.S., nearly every home has a refrigerator. It is the most widely used home appliance. But here’s an even more telling statistic about the American obsession with this appliance: nearly one in every four U.S. homes has two (or more) refrigerators, accounting for 23 percent of the total population.
15. The four main components of a modern fridge are
    • Compressor
    • Condenser coils
    • Expansion Device
    • Evaporator coils