Wednesday, July 31, 2019
The History Of The Refrigerator
Before refrigerators were produced, people were forced to cool their food with ice, snow,à or nearby rivers and springs. Most people also had to can, salt, and pickle their food to preserveà their meals. During these times, inventors were working towards the creation of the refrigerator.In 1758, Benjamin Franklin experimented with the effects of evaporation on temperature. Withà the help from chemist John Hadley, both men were able to find a way to drop thermometers temperature below freezing. Franklin and Hadleyââ¬â¢s work was soon picked up by the Americanà inventor, Oliver Evans.Using principles drew up by Franklin; Evans drew the design for aà refrigerator in 1805. Jacob Perkins modified Evanââ¬â¢s design and built the first practicalà refrigerating machine in 1834. Soon after, John Gorrie used Evanââ¬â¢s design to build a refrigeratorà to make ice to cool the air for his yellow fever patients in 1844.Over 30 years later Germanà engineer Carl Von Linde di scovered the process of liquefying gas which is part of basicà refrigeration technology. From the 1800s until the 1920s, refrigerators usedà toxic gases asà refrigerants. With research developed, corporations discovered a less dangerous refrigerantà called Freon. Freon soon became the standard for almost all home kitchens.à Carl Von Linde was born in 1842 and was the son of a Lutheran minister.He studiedà science and engineering at the Federal Polytechnic in Zurich, Switzerland. His research led to theà development of the first compressed-ammonia refrigerator. In 1917, Linde formed the Unionà Carbide and Carbon Corporation.On January 1, 1913, the first electric refrigerator in the United States was invented byà Fred W. Wolf. The refrigerator was an air-cooled refrigeration unit mounted on top of an ice boxà and was called the Domelre. Exactly two years after the Domelre was created, the first self-container refrigerator was built by the Guardian Refrigerator Comp any.The company struggledà and produced less than 40 appliances in two years. The company was purchased by Generalà Motors and the business was renamed Frigidaire. In 1918, the first Frigidaire refrigerator wasà produced. There were more than 200 different refrigerators on the market by 1920. Ice creamà cabinets were added to models in 1923, soda fountain equipment in 1924, and water and milkà coolers in 1927.One million refrigerators were produced by 1929. In 1947, GE was the firstà company to introduce the two-door refrigerator-freezer combination. By 2005, 99.5 percent ofà homes had refrigerators.à The refrigerator has changed the world in many ways. We are now able to preserve ourà Foods such as fruits and vegetables for longer periods of time and beverages are now able to beà kept cool. Without refrigeration, medicines and vaccinations would not have been able to beà developed. Refrigeration is also used for air conditioning in homes, public places and lar geà warehouses.Even those beautiful Valentineââ¬â¢s Day roses would not be able to be deliveredà without refrigeration. Just imagine school without air conditioning, everyone would smellà horrible from sweating all day. Everyoneââ¬â¢s favorite ice creams would not have been createdà without the freezer. Long car rides would be dreadful without an air conditioner.Refrigerators use refrigerants to carry heat away from the inside of the fridge. This isà done by injecting the refrigerants into a tube inside the refrigerator in liquid form and it slowlyà begins to vaporize. Taking heat away makes the temperature cooler. When the liquid is doneà vaporizing, it travels to a coil on the outside of the fridge where it releases heat and becomes aà liquid again. The process starts over again.After researching the history of the refrigerator, I have learned how much it has impactedà the world and how much people take it for granted. I would have never been able to enjoy myà favorite ice creams or drinks if it was not for the refrigerator. I would not be able to preserve myà favorite foods or keep my fruits and veggies fresh.My favorite Eleven slushies would not evenà exist. Some people do not take the time to realize the importance of the refrigerator and howà much of a difference it has made in America.
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