In Israel, an Israeli company has patented and developed Kensho, an air conditioner with these characteristics. Currently, being tested at six locations in Tel Aviv, Kensho will be on the general market in the summer of 2023.
“We create energy from the pressure that builds up between liquid nitrogen and nitrogen gas,” he says. Tal Leizer, CEO of Green Kinoko.
“We use liquid nitrogen at minus 196 degrees. When it turns into a gas, the nitrogen creates a very high pressure that we use to activate a mechanical engine.”
Creator,Leizer explained that his team was working with cryogenic liquids (liquids at extremely low temperatures) on an unrelated project when they realized the potential value of nitrogen to make an air conditioner.
“We calculate the carbon footprint: the liquid nitrogen we use is a byproduct of medical oxygen produced for hospitals. And what comes out of the unit is an inert gas that we breathe,” Leizer explains.
Compared to any other air conditioner, this one contains no polluting gases. It doesn’t use electricity or add heat to the atmosphere. It works without water, so there’s no noise or humidity. Again: it does not damage the ozone layer of the atmosphere. Need to add more?
Note that the nitrogen charge must be renewed every 7 to 10 days, depending on the use of the unit. A circumstance that will not affect the costs: the price of such an air conditioner will be comparable to that of conventional air conditioners, and the electricity consumption will be zero.
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