Air conditioner (air conditioner) is the common household electrical products all over the world. Especially in a tropical country such as Vietnam, are living and working in a cool environment created by the air conditioning needs of everyone. During the hot summer days like today, the air conditioning is an indispensable electric plate warmer product for each of us. Forum "Each week one invented" this time you will find the history of the air, from the earliest models to the modern air-conditioned that you are using today. Once again encounter the ancient Egyptians ... Summary of important milestones in the development of modern air conditioners
The drawing on the wall cooling method described electric plate warmer by moisture from the ancient Egyptian archaeologists and historians believe that the model of air conditioning has been the most primitive ancient Egyptians applied reeds by hanging on the windows and spraying it on. When the wind blows through the window carrying steam and cooling the air inside the room. In addition, this method also helps moisten the ancient Egyptian atmosphere in the house, avoiding the hot dry desert climate.
Picture cooling towers Persian The ancient Romans also install plumbing walls surrounding water circulation for cooling the house. Another technique is also used by the medieval Persian thee to cool the air. It is a system that includes water tanks and wind towers to cool the indoor air into the heat time.
The activity diagram of the wind tower cooling systems 2nd century Han Dynasty in China, the inventors have created an adjournment "fans" to cool the air. This system electric plate warmer consists of 3 wheels with a diameter of 3 meters and is turned by hand to create airflow. In 747, Emperor Xuanzong (712-762) have used a cooling tower installed in the palace called honesty. The ancient texts describe the system including the water wheel to generate power with winds bring cooling air moisture. Until Tong in China, the ancient document electric plate warmer also refers to the use of air cooling electric plate warmer systems above widely by many different subjects. All these developments are starting the physical principles - 17th century chemist, the inventor Cornelis Drebble (1572-1633) introduced the model making machine air into water by adding salt. He named this system is "turned summer into winter" and presented to the king of England at the time was James I.
Inventor John Hadley (1731-1764), who discovered the relationship between the evaporation of the liquid and the cooling process In 1758, Benjamin Franklin (1785-1788), governor Pennysylvania, and John Hadley (1731-1764), professor of chemistry electric plate warmer at Cambridge University electric plate warmer have conducted tests and discovered the principle of evaporation. Franklin and Haldley confirmed that the evaporation of a liquid such as alcohol or ether can be used to reduce the temperature of a material world below the freezing point of water. 2 people electric plate warmer have conducted experiments using evaporation to lower the temperature of the mercury thermometer from 18 degrees C to -14 degrees C. Franklin noted that soon after crossing the threshold temperature of the water freezes, Tape a thin film formed on the surface of the thermometer. From there, he came to the conclusion: "The trial shows a man freezing to death right in the summer is entirely feasible."
Chemists, physicists and English inventor, Michael Faraday (1791-1867), electric plate warmer the first to perform experiments and liquefied ammonia compressors and refrigeration discovered from the opposite process. Arrive in 1820 , a chemist and inventor of the UK, Michael Faraday (1791-1867) was successfully implemented and experiments liquefied ammonia gas compression. electric plate warmer He discovered that when the volatile liquid ammonia can be ambient air cooling. More than 20 years later, in 1842, Dr. John Gorrie electric plate warmer Scotland (1803-1855) and gas compression techniques used to create the ice to cool the patients in the hospital in Apalachicola, Florida. From that success, he hopes to create electric plate warmer a machine to produce ice cooling electric plate warmer a building. Even Dr. John envisioned a machine that cooled air for an entire city.
Scottish physician John Gorrie (1803-1855), who first put forward the idea of the air cooling electric plate warmer system. Though the model and the idea has never been implemented, but in 1851, Gorrie was was awarded a patent electric plate warmer for the machine creates ice. However, supporters of the project coolers Gorrie died and he can not get the aid to carry out fabrication. Even stars that Gorrie had suffered much opposition from contemporary inventors. Finally, Gorrie died in poverty in 1855 and the idea of an air cooled machine faded during the later years.
Model John Gorrie's ice machine is stored at John Gorrie electric plate warmer Museum, Ap
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