There is nothing quite like enjoying the sights, sounds and culture of a city while tasting a cup of coffee outdoors. But it is not that enjoyable when heat waves sweep the city. An outdoor cooling system produced by Kinonko, an Israeli (以色列的) company, began to be tested in Tel Aviv. The sweltering city is a perfect place to try the new technology.
With global warming heating up the temperature, it will soon be too hot to sit outside in cafes. While outdoor cooling systems have existed for a while, most of them use some sort of water or misting system to cool the air around them, consuming too much water and power. After two years of development, the perfect solution to the problem was found. "We have invented a new generation of air conditioner, " Kinonko CEO Leizer said.
As Leizer introduced, the energy is from the pressure created between liquid nitrogen (氮) and gas nitrogen. When liquid nitrogen at -196 degrees turns into gas, it produces a very strong pressure and the pressure is used to run a mechanical engine. It is that mechanical engine that slowly releases freezing nitrogen gas to cool down the air around it.
The technology is unique and amazing. Beyond the coolness of the concept it also has other advantages. The work unit doesn't need to be power-driven, and doesn't blow out harmful warm air as it works. As for the potential price, it will probably be no more expensive than any other air conditioner. In addition, the liquid nitrogen container will need to be replaced every seven to ten days, depending on usage. This makes it an affordable option for all sorts of businesses. The cooling system is expected to be on the market in 2024.
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