This post is also available in:
עברית (Hebrew)
In a groundbreaking advancement for firefighting, researchers at Ohio State University have developed a new portable tool aimed at making fire suppression faster, safer, and more environmentally friendly. This innovative device harnesses conductive aerosols—microscopic particles that conduct electricity—to efficiently extinguish fires, offering an alternative to traditional methods that can be toxic or wasteful.
The core technology behind this new firefighting tool is the use of vortex rings—circular air currents that carry electrically charged particles. These rings, generated by a compact, arm-mounted device, create powerful bursts of wind that disrupt combustion by converting surrounding oxygen into ozone, according to the press release. This process effectively extinguishes flames without the need for harmful chemicals or water, making it an environmentally sustainable option.
The device is designed to be compact and easy to use, offering firefighters greater maneuverability, especially in confined spaces. The launcher, which is worn on the arm like a small bucket, uses either compressed air or an elastic diaphragm to propel the vortex rings filled with conductive aerosols toward the fire. The team tested two versions of the launcher—one using compressed air with a conical muzzle and the other using an elastic diaphragm with a square muzzle. After extensive testing, they found that the compressed air version provided superior efficiency in generating the vortex rings.
With a reach of approximately 2 meters, these vortex rings can carry chemicals and extinguish fires from a safe distance, keeping firefighters away from the immediate danger. The researchers also plan to enhance the device with sensors and image analysis capabilities, which will allow it to target various types of fires with greater precision.
Beyond its use in traditional firefighting, this portable tool has potential applications in military vehicles and spacecraft, where fire suppression inside confined spaces is critical. The device’s simplicity, scalability, and ability to maintain its effectiveness over long distances make it a versatile tool for a wide range of fire safety applications. The team hopes their work will make a significant impact in improving fire safety for both first responders and military personnel.
The team’s research was published in the journal Technologies.
