The Blue Frontier founding workforce testing a prototype at Oak Ridge National Labs. From left to proper: Matt Graham (VP of Engineering), Daniel Betts (CEO) and Matt Tilghman (CTO).
Air conditioning has the potential to maintain individuals cool as local weather change retains making the planet hotter. At the identical time, standard air conditioning know-how makes use of plenty of power, that means it is contributing to local weather change — and may have an even bigger impact as extra individuals want air conditioners to remain comfy and even survive.
Currently, air conditioning is accountable for practically 4% of worldwide greenhouse fuel emissions, in accordance with an evaluation by scientists from the Department of Energy’s National Renewable Energy Laboratory and Xerox’s Palo Alto Research Center launched in March. Those emissions are anticipated to worsen as extra individuals set up air conditioners, particularly in India, China, and Indonesia, in accordance with a joint assertion from the NREL and Xerox PARC.
“It’s a good and a bad thing,” Jason Woods, an NREL senior analysis engineer and co-author of the brand new examine, mentioned in a press release concerning the analysis. “It’s good that more people can benefit from improved comfort, but it also means a lot more energy is used, and carbon emissions are increased.”
Conventional air conditioner know-how makes use of a vapor compression cycle to chill the air. In that system, refrigerant is used to do the cooling.
Chlorofluorocarbons and hydrochlorofluorocarbons was a part of the most typical refrigerants in air conditioners, however these chemical substances deplete the ozone layer and so they’re being phased out. There are a pair dozen alternate options that do not hurt the ozone layer, however they nonetheless have a excessive world warming potential.
In addition, plenty of power in a standard air conditioner is used to over-cool the air with a purpose to make it much less humid and extra comfy.
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Of the 1,950 million tons of carbon dioxide launched annually from the power used to energy air conditioning, 531 million of these tons are to chill the air and 599 million tons are to take away the humidity, in accordance with the NREL and Xerox PARC analysis. An further 820 million come tons from the leakage of refrigerants and from greenhouse gasses emitted throughout the manufacturing and transporting of the air conditioner items.
“We’ve already made the existing, century-old technology nearly as efficient as possible,” Woods mentioned within the assertion. “To get a transformational change in efficiency, we need to look at different approaches without the limitations of the existing one.”
That’s the aim of Blue Frontier. The startup is engaged on know-how that may make air conditioning extra environment friendly with fewer dangerous environmental by-products, and simply scored a $20 million spherical led by Bill Gates funding fund, Breakthrough Energy Ventures.
It began with anthrax
Blue Frontier makes use of one-third to one-fifth the quantity of refrigerants that might be required for a standard system, and since the development of the machine is totally different than a standard air conditioner, it might probably use a refrigerant with a decrease world warming potential. “The combined effect is an 85% to 87% reduction in our system’s contribution to global warming,” CEO Daniel Betts informed CNBC.
The know-how was really found in efforts to kill airborne anthrax, which is a possible bioterrorism weapon, in accordance with Betts. It’s primarily based on liquid desiccants, that are chemical substances with a decrease degree of vapor strain than water. When humid air is handed over that liquid desiccant, the water is pulled out, dehumidifying the air.
“Liquid desiccants are excellent antiseptics and bactericides. So the contact of anthrax with the liquid desiccant would kill it. This initial research led to innovations and discoveries that form the basis of Blue Frontier’s technology,” Betts informed CNBC. “In fact, one of the advantages of Blue Frontier air conditioning technology would be a general improvement of indoor air quality and a healthier indoor environment.”
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The Blue Frontier system getting examined on the National Renewable Energy Laboratory.
Courtesy Blue Frontier
Some refrigerant is used within the Blue Frontier system however it isn’t used to do the cooling, it’s used for working the warmth pump that regulates the salt focus of the desiccant.
“Thus, the refrigerant and refrigerant carrying equipment never meets air entering the building or the interior of the building,” Betts informed CNBC. “This gives us an enormous advantage to use readily available refrigerants that are mildly flammable, without putting at risk the safety of the people in the building.”
Air conditioners that retailer power, too
The liquid desiccant that Blue Frontier makes use of could be saved contained in the air conditioning machine in a small plastic tank, basically storing the cooling capability for use when it is most wanted. That’s essential for a decarbonizing grid that can be more and more depending on renewables, like wind and photo voltaic, that are each intermittent sources of power.
“The storage also allows us to consume the bulk of our energy when renewable energy is abundant and when electric grid congestion is low. We avoid consuming electricity during peak demand periods that are powered by fossil fuel peaking plants,” Betts informed CNBC.
“Summer peak demand is not just a problem because it causes brown-outs, it increases the cost of electricity, and produces more greenhouse gas emissions. It is also a cause of forest fires. When everyone consumes electricity for air conditioning during the hottest days of the year, the large amount of electricity flowing through the transmission and distribution lines heats them up and makes them sag,” mentioned Betts. “This increases the probability that they will come in contact with vegetation, causing forest fires.”
For VoLo Earth Ventures, one other investor within the spherical introduced Thursday, that storage capability can be a key purpose why Blue Frontier’s answer is enticing.
“Blue Frontier’s technology is a game changer for both cooling decarbonization and grid efficiency,” Kareem Dabbagh, co-founder at VoLo Earth Ventures, mentioned in written assertion. “Their intersection of novel cooling technology and energy storage enables new opportunities to flatten large afternoon grid peaks in cooling demand, saving money for consumers and utilities.”
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The prototype for the Blue Frontier air conditioner.
Photo courtesy Blue Frontier.
Learning from previous errors
Before launching Blue Frontier, Betts launched one other air conditioner start-up, Be Power Tech, which aimed to commercialize know-how that each was an air conditioner and a supply of power. The startup failed, and Betts realized that constructing an organization on two applied sciences that are not but developed is an excessive amount of.
“I made the cardinal mistake of technology startups which is I put two completely new technologies dependent on each other and merged them,” Betts informed CNBC. “So, double the risk, double the money required. And so that company did not do that great.”
But he realized lots about launching a product right into a market that can be adopted and used.
“The insight was that we need to do something that does not change how people interact with the air conditioner in the building,” Betts mentioned. “To the installer, and to the builder, or to the building owner, it should just be a replacement or conventional air conditioner with ours.”
So that’s what Betts and his workforce is attempting to do.
They’re taking the know-how, which has been been confirmed in prototypes examined at National Renewable Energy Laboratory and at Oak Ridge National Laboratory, and scale it up for business buildings first.
Some check items can be put in in buildings in 2022, and one other spherical of pre-commercial items are anticipated to enter buildings in 2023 after which the primary business product for business buildings can be obtainable in 2025. And if all goes effectively, a residential product can be in the marketplace by 2026 or 2027, Betts informed CNBC.