History of refrigeration
[Egyptian ice trays and other interesting facts about cooling through age]
This or that type of refrigeration can be traced back to at least three thousand years. Ancient Chinese began cutting ice and storing it for use in the future as early as 1000 BC. Other ancients, such as the Egyptians, used to put ice in outside clay pots on cold nights. This practice is known to have occurred as early as 500 BC.
In the past, countless people made "refrigerators" by digging deep holes in the ground, lining them with insulators such as straw, and then covering them firmly to prevent the appearance of organisms. These cooling chambers have been called "roots" by many people in the recent history of American pioneers and are relatively effective. Food can be stored in a cool space under the earth's surface for a long time. In some areas, caves have similar uses. In other fields, lakes or cool mountain streams can act as refrigerators if safe packaging can be designed and another invention is invented or obtained to reduce and enhance food packaging.
In 1550, it was found in France that if the bottle was rotated in an aqueous solution of saltpetre dissolved, the wine could be cooled. Cooled drinks have become all the rage.
In the 1700s in the UK, large chunks of ice were cut, packed in salt and flannel and stored underground, where they will last until summer. The first ice box appeared in England in the early 1800s. They are made of wood, lined with tin or zinc, and insulated with seaweed, straw or sawdust. The ice-melted water must be removed from the drip tray every day. The harvested ice cubes are kept in a frozen state by a well-insulated ice box, which is regularly transported by insulated vehicles to provide refrigeration for the public for many years [even after the invention of the refrigerator]. As a new electric vehicle, the popular kitchen refrigeration invention has grown.
Science and technology began to experiment with practical applications in the cooling challenges of the 1700s. In these early experiments, toxic gases, vacuum cleaners, heating and material changes from one state to another were the tricks of this behavior. A Scottish gentleman named Dr. William Cullen created a small amount of ice at the University of Glasgow, the first successful experiment to create artificial refrigeration. In 1758, Cambridge University professor John Hadley and the famous Benjamin Franklin conducted a refrigeration experiment and produced a small amount of ice. Others are experimenting and the experiment has been successful because the US government granted the first refrigeration-related patent to a Maryland man named Thomas Moore in 1803. Londoner Michael Faraday invented but never really built a refrigerator that was cooled by ammonia in 1805. In the mid-1800s, American doctor John Goorie invented the idea of refrigerating air [air conditioning] to ease his discomfort. A fever patient [yellow fever and malaria]. Dr. Goorie built his prototype of the chilled air system but was unable to find commercial success in it. At the same time, some Australians are developing ice machines and cold storage facilities. The first Australian commercial companies to use the new cooling technology were breweries and meat packaging plants. In the mid-to-late 1800s, refrigerated rail cars, refrigerated transport, and finally the first air-conditioned houses appeared one after another in the field in 1892.
It was in 1911, at the foot. The first refrigerators for home kitchens were built in Wayne, Indiana. These refrigerators are called "guards" and are ready to be sold in 1915. A French monk was praised for inventing these machines. These household refrigerators were the pioneers of the later popular Frigidaires. By the 1920s, a dozen brands of household refrigerators had surged, and all of these household refrigerators used powerful toxic gases such as ammonia and sulfur dioxide as refrigerants. In the 1930s, Freon was discovered and considered a safe refrigerant. Until the 1970s, Freon was thought to have caused great damage to the ozone layer around the Earth's atmosphere. At this time, safer refrigerants containing hydrofluorocarbons instead of CFCs began to be replaced by modern refrigerators. Refrigerant.
The mass production of modern refrigerators had to wait until the end of the Second World War. Today, the refrigerator is one of the most widely used and popular home appliances in the world. Most of us, if we bother to consider them, we would be very grateful to our refrigerator.
Orignal From: History of Refrigeration - Prehistoric History
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