Who invented air conditioning?

History/kloc-More than 0/000 years ago, Persia invented an ancient air conditioning system, which used a wind pole installed on the roof to blow cold water into the room from the outside, making people feel cool indoors. [1]19th century, Michael Faraday, a British scientist and inventor, discovered that air can be frozen by compressing and liquefying a certain gas. This phenomenon occurred when liquefied Armenia evaporated, when his ideas were still theoretical. 1842, John Gorrie, a doctor in Florida, USA, used compression technology to make ice cubes and blew them as frozen air to malaria and yellow fever patients. [2] He thought of using his ice machine to control the environment of the building and imagined a central air conditioning system that could cool the whole city [3]. Gori obtained the American patent (#8080) of its ice maker at 185 1. This technology was attacked by some businessmen and religious leaders in the north, thus threatening the business of transporting ice cubes from the north to the south for sale. 1855 When Gori and his business partner died, the idea of air conditioning disappeared. One of the applications of personal comfort air conditioning was in 1902, when central air conditioning was installed in the new building of new york Stock Exchange. Alfred Wolff, an engineer in hoboken, New Jersey, helped design this brand-new air conditioning system and transferred this technology from textile mills to commercial buildings. He is regarded as one of the pioneers in reducing the temperature of the working environment. 1902 later, Willis Xavier Gallia (1876-1950) invented the first modern, electrically driven air conditioning system. The difference between its design and Wolff's design is that it can not only control the temperature, but also control the humidity of the air, so as to improve the quality of the production process of a printing factory in Bukling, new york. This technology provides a low-heat and low-humidity environment, which makes the paper area and ink arrangement more accurate. Later, Galia's technology began to be used in the workplace to improve production efficiency. 19 15 established Carrier Engineering Company to meet the surge in demand. With the gradual development, air conditioning has been used to improve the comfort of home and car. The sales of residential air-conditioning system didn't really take off until 1950' s. The Royal Victoria Hospital in Belfast, Northern Ireland was built in 1906, which is of special significance in architectural engineering and is known as the first air-conditioning building in the world. 1906, Stuart W. Cramer of Charlotte, North Carolina, USA, was looking for ways to increase the air humidity in his southern textile factory. Kramer named this technology air conditioning, and used it as a substitute for air conditioning in the same year. The regulation of water was a famous procedure at that time, which made the production of textiles easier. He combined steam with ventilation system to "adjust" and change the air in the factory and control the extremely important air humidity in the textile factory. Willis Gallia used this name and wrote it into the company name he founded in 1907: "Gallia Air Conditioning Company of America" (now Carrier Company). The original air conditioners and refrigerators used toxic gases such as ammonia and methyl chloride. The leakage of this gas will lead to a major accident. Thomas Midgley

Jr. invented chlorofluorocarbon gas in 1928 and named it freon. This refrigerant is much safer for human beings, but it is harmful to the atmospheric ozone layer. Freon is the trademark of CFC, HCFC or HFC refrigerants from DuPont, in which the name of each refrigerant also includes a number to indicate the molecular composition of its components (for example, R- 1 1

R- 12

R-22

R- 134). Among them, R-22 HCFC refrigerant, which is widely used in the field of direct evaporative moderate cooling products, will stop being used in newly produced equipment from 20 10 and will be completely stopped in 2020. R- 1 1 and R- 12 have been discontinued in the United States. As substitutes, some refrigerants harmless to the ozone layer have been put into use, including the refrigerant R-4 10A with the trade name "Puron".

Reference: zh. *** /w/index？ Title =% E5% 86% B7% E6% B0% A3% E6% A9% 9F&; variant=zh-#.E6.AD.B7.E5.8F.B2

If they are worried that the baby will be too hot in the stroller, most parents will replace the mat or cover the canopy to provide shade for the baby. But an Israeli father came up with a high-tech solution for his little daughter, that is, using portable air conditioners. "Father of invention" Aaron said, "At first, I wanted to use a fan to cool my daughter. Later, I thought of a simpler way, which is to use a small air conditioner. This small air conditioner, weighing less than two kilograms, looks like a fan with a half-meter long tube tied to its tail, which can be placed under an ordinary stroller. At the other end of the tube is a vent, which is made of dolls, so that it can be supported in a stroller and looks like a baby's toy. Aaron said that he is going to sell this small battery-powered air conditioner in Europe and the United States within a few months, but he has not yet determined the retail price. (city)

Reference: news.readmetro/news? Start date = 07022007 & ampnewscat= 10

What do you think is the most important thing in hot summer? Air conditioning system, of course. Can enjoy this cool comfort, should thank the "father of air conditioning" Carrier (Willis haviland Carrier).

1876_ 1950)。 July 1902, 17 Young people who just graduated from Cornell University for one year invented air conditioning while working in Fe Co, Buffalo, but the original purpose of air conditioning was not to bring people a comfortable living environment, but to serve some dead things. It is said that one of Buffalo's customers, William Printing Factory in Xiakete, new york, has a printing machine that causes the paper to expand and contract due to the change of air temperature and humidity, and the ink is misplaced, so that clear color printed matter cannot be printed. So I turned to Buffalo Company. Carrier thinks that since air can be kept warm by coils filled with steam, why not use air to cool down by coils filled with cold water? The moisture in the air will condense on the coil, so that the air in the factory will be cool and dry. 1902, 17 July, the air-conditioning era began with the first use of air-conditioning in this printing house. Soon, other industries, such as textile, chemical, pharmaceutical, food and even arms industry, also greatly improved the product quality because of the introduction of air conditioning. 1907, the first buyer to export air conditioners was a Japanese silk factory. 19 15, Carrier established its company and is still one of the largest air conditioning companies in the world. But in the 20 years after the invention of air conditioning, it has always been a machine, not a person. Until 1924, many people fainted in a shopping mall in Detroit because of the sultry weather. First, three central air conditioners were installed, which was a great success. The cool environment has greatly increased people's desire for consumption. Since then, air conditioning has become a powerful tool for merchants to attract customers, and the era of air conditioning serving people has officially arrived. But when it comes to air conditioning, it can be popularized, mainly through cinemas. Most Americans first came into contact with air conditioning in the cinema. In the 1920s, cinemas used air-conditioning technology, promising to provide cool air for the audience, making air-conditioning as attractive as the film itself, and summer replaced winter as the peak season for watching movies. Subsequently, a large number of indoor entertainment places appeared throughout the year, such as casinos, indoor stadiums, shopping malls, etc., all of which were attributed to the appearance of air conditioning. Later, due to the Great Depression and World War II, the popularity of air conditioning in the home was delayed. It was not until the economic take-off in the 1950s that household air conditioners officially entered ordinary families.