Who invented air conditioning?

Willis Haviland carril is known as "the father of air conditioning". Willis Haviland carril, an American, was born in New York State in 10/876165438. After graduating from Cornell University in the United States at the age of 24, he worked as a mechanical engineer in Buffalo Forging Metallurgy Company, which manufactures heating systems. In the summer of 190 1, the air in new york is hot and humid, and the production of Sacato Williams Printing and Publishing Company in Brooklyn, new york is greatly affected by the hot and humid air. The ink is always dry, the paper is inconsistent because of warmth, and the printed things are blurred; Therefore, the printing and publishing company found Buffalo Forging and Metallurgy Company to seek a device that can adjust the air temperature and humidity. Buffalo Forging Company entrusted this task to Carrier, a young engineer with research spirit. Carrier thinks that a pipe full of steam can warm the surrounding air, so if the steam is replaced by cold water and the air blows through the water-cooled coil, the surrounding air will be cool; The moisture in the humid air condenses into water droplets, which make the water droplets drip, and finally the rest is colder and drier air. Based on this concept, Carrier installed this self-designed equipment for Sacktor Williams Printing and Publishing Company on July 1902, and achieved good results, resulting in the world's first air conditioning system (air conditioning for short). It is worth mentioning that in the first 20 years after the invention of air conditioning, the object of enjoying air conditioning has always been machines, not people, mainly used in printing houses and textile mills.