why was the air conditioner made

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By 1947, 43,000 of these systems were sold -- and, for the first time, homeowners could enjoy air conditioning without having to make expensive upgrades.By the late 1960s, most new homes had central air conditioning, and window air conditioners were more affordable than ever, fueling population growth in hot-weather states like Arizona and Florida. He and Hadley expanded on this finding by using ether and a bellows to cool down a mercury thermometer to 25 degrees below freezing.

Schultz and J.Q. Patented in 1851, Gorrie's "cold air machine" was the first patented invention that facilitated mechanical refrigeration, as well as the first to resemble a modern air conditioner.But it wasn't until 1902 that the history of air conditioning really began to heat up. Building off refrigeration technology, Frigidaire introduced a new split-system room cooler to the marketplace in 1929 that was small enough for home use and shaped like a radio cabinet. Then when the cold air from the air conditioner suddenly passes through, the metal cools and contracts rapidly. In fact, air temperature is so important to us that 48 percent of all energy consumption in American homes is a result of cooling and heating, Like most important breakthroughs, modern commercial and residential air conditioning technology is a result of a series of advancements by scientists and inventors who challenged themselves to come up with creative solutions to problems of the day. In fact, new air conditioners today use about In addition to appliance standards, the Energy Department’s 

Hydrofluorocarbons (HFCs), which don't destroy the ozone, gain popularity but are eventually linked to climate change. In 1758, American statesman and inventor Benjamin Franklin, along with John Hadley, a professor at Cambridge University, began experimenting with the refrigerating effects of certain liquids.In previous studies, Franklin had determined that the refrigerating effects of a liquid are related to how quickly it evaporates. Home cooling systems got smaller after H.H. The type of AC equipment varies across regions, however. Scroll through our interactive timeline above and read on to learn about some of the key milestones in air conditioning history.In the 1840s, physician and inventor Dr. John Gorrie of Florida proposed the idea of cooling cities to relieve residents of "the evils of high temperatures." During the next five years, Carrier installed his cooling units in 300 movie theaters across America.For years to come — before air conditioning was a regular fixture in homes across America — people flocked to the cool and comfortable movie theaters in the heat of summer, essentially starting the "summer blockbuster" trend.Throughout the next decade, scores of commercial businesses jumped on the air conditioning bandwagon, installing huge (by modern standards) and toxic (they used ammonia as a coolant) air conditioning devices in their stores. Willis Carrier invents first modern electrical air conditioning unit as a way to solve a moisture problem for a publishing company.

Louisiana Purchase Exposition Company. While working for the Buffalo Forge Company in 1902, Carrier was tasked with solving a humidity problem that was causing magazine pages to wrinkle at Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn.Through a series of experiments, Carrier designed a system that controlled humidity using cooling coils and secured a patent for his "Apparatus for Treating Air,” which could either humidify (by heating water) or dehumidify (by cooling water) air. Gorrie believed that cooling was the key to avoiding diseases like malaria and making patients more comfortable, but his rudimentary system for cooling hospital rooms required ice to be shipped to Florida from frozen lakes and streams in the northern United States. Air-conditioning manufacturers have played a big part in making units more affordable by increasing their efficiency and improving components and technology. Sometimes, when the system is off, warm air can make its way into the ducts, and the warmth causes them to expand slightly. This experiment prompted Franklin to remark in his journal about the possibility of freezing to death, even on a warm summer's day.This observation by Franklin was a foreshadowing of things to come. General Electric's Frank Faust improved on this design, developing a self-contained room cooler, and General Electric ended up producing 32 similar prototypes from 1930 to 1931.Around this same time, Thomas Midgley, Albert Henne and Robert McNary of General Motors synthesized chlorofluorocarbon (CFC) coolants, which became the world's first non-flammable refrigerating fluids, substantially improving the safety of air conditioners. To get around this expensive logistical challenge, Gorrie began experimenting with the concept of artificial cooling. Today, air conditioning units are considered standard equipment in U.S. homes. NY 10036. However, the chemicals would be linked to ozone depletion decades later and were eventually phased out by governments all across the globe after the Montreal Protocol in the 1990s.

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