The Importance Of Refrigeration Technology History Essay.
History. Frigidaire began mass producing electric refrigerators in 1918, and by the 1930s the name was synonymous with the appliance. Early to mid-20th century refrigerator technology involved passing coolants such as ammonia and freon through a circuit from a condenser to an evaporator circuit to draw warm air away from the refrigerator cabinet.
This gave birth to different types of refrigerator which addresses every need of human being today. One example of this is a compact generator. It comprises to only a small amount of compartment thus stores only a small amount of food. This would also help people not to buy larger amount of foods which contributes greatly in overeating. It also.
Thesis Statement: Throughout history there have been many inventions that drastically changed life, but there are a few that stand above the rest. I. Computers have been integrated into almost every aspect of life. A. Almost every company uses computers to conduct everyday business. 1. Computers are used to create and store large amounts of.
A refrigerator is a machine for keeping things cold. It is sometimes called a fridge or an icebox.It is normally maintained at 4-5 degree Celsius for household use. People put food and drinks in it, to keep those items cold or good for a longer time.A refrigerator has a heat pump.It takes heat away from the air inside the fridge. The heat gets added to the air outside.
The first known artificial refrigeration was demonstrated by William Cullen in 1748 - he did not use his discovery for any practical purpose - In 1805 an American inventor Oliver Evans designed the first refrigeration machine - Dr John Gorrie built a refrigerator based on the Evans design in 1844 - used to make ice to cool the air for his yellow fever patients.
An invention is a unique or novel device, method, composition or process. The invention process is a process within an overall engineering and product development process. It may be an improvement upon a machine or product or a new process for creating an object or a result. An invention that achieves a completely unique function or result may be a radical breakthrough. Such works are novel.
The principle on how does a refrigerator work is pretty simple. Gases get hotter when you compress them into less volume because you have to work to push their energetic molecules together. When you expand a gas, it is suddenly able to occupy much more volume. The heat energy its molecules contain is now divided over a much bigger volume of space, so the temperature of the gas falls (it gets.