Inaudible sound might be the next frontier in wildfire defense

A decade ago, two college students created a fire extinguisher A fire breakfast 10 inches to use nothing but subwoofer. The Internet lapsed it, and Jimmy Fallon even booked a demonstration Tonight showThe

However, since that short viral moment, the technology has nothing more than whispering about the technology.

This is not for a lack of trying. College kids were not the first to prove the idea. The Darpah was in the case In 2012; And in search of scientific literature, dozens of researchers investigated this idea.

A startup has now claimed that the problem has crack. Sonali Fire Tech Created an aquastic fire suppression system that does not just extinguish the flame; It can protect houses and other buildings from the fire. The startup has raised $ 3.5 million seeds from investors, including Khosla Ventures and Third Golak, learned exclusively in TechCrunch.

The fireplaces spend as much as in the United States 424 billion annuallyThe Has become the problem So intense In places like California Refusal to renew the policy After repeated blazes, the state’s huge sweeths have declined in the Ashes.

Sonali Fire Tech has been developing its technology for the past several years. Michael Thomas, who was the chairman of the startup board, shaking the idea of ​​using the word to fight the fire, and when he hit a wall, he reached Jeff Brooder on LinkedIn. Brooder worked for NASA, where he concentrated on heat and acoustics.

“This is the story of the establishment of a new era,” the CEO of the startup and CTO Brooder told TechCrunch.

Brooder was interested in Thomas’s concept and set up a prototype. “I got some parts from a subwoofer and home depot and autozone and said, ‘Hey, let’s see if we can do something better than other people.

https://www.youtube.com/watch?v=C4qu0p71lhk

The startup was soon dug the subwoof and moved to the lower frequencies. The problem with the frequency of the audible is that any system strong enough to suppress the fire will be affected by human hearing, brooder said. “You have originally been able to throw the speaker design in the trash and start from scratch,” he said.

There are competitive theories that the aquestic power can disrupt the combustion, but the soundless protests certainly refers to anything above the Sonali Fire Tech.

The new system uses a mutual piston like the interior of the car engine but it is significantly large. An electric motor turns a crankshaft, which gives the two -foot piston to produce infusound, it is a technical word for the bottom of the human hearing range or about 20 hergied words.

Brooder said, “Since we have designed everything ourselves, we have dropped the frequency where we are below the limits of the audible, which helps us further send and it makes it safe,” said Brooder.

The current record of Sonali Fire Tech is 25 feet. Brooder said a large system could work up to 330 feet away. The company is planning to sell and install its system for about 2% of a home price and it is talking to insurance companies to qualify the technology.

To protect a house, Sonali Fire Routes the Infresound from a single generator through rigid tube sitting on the roof and the evs. On the ridge, they drop the pitch down to catch any fire that may begin in the tidal debris. Below the evs, they can be targeted towards the ground to suppress any flame that is popped up to the wall. The system is turned on when sensors detect the flame.

A home-based system draws about 500 watts of power and is planning to use lead-acid battery for Sonali Fire Tech Backup in terms of power outage. Unlike Sprinkler systems, it does not require water sources, which can be a small supply in the country of fire.

Startup is working to display the technology at home with PG & E and Southern California Edison and it has signed a letter intention with a chemical storage facility.

Brooder said, “Natural progress is, if we are certified as a sprinkler replacement, you can only run a pipe in your house and protect your kitchen and wherever you have to protect,” said Brooder.