During the 2015 Seminar Series titled Trending Now! #FireProtection: Technologies Impacting the Future, Lee Kaiser spoke about trending technology in clean agent fire suppression. In the video excerpt below, you can watch as he describes trending options for localized clean agent fire suppression systems. If you would like to register for the 2016 Seminar click here.
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Local application can be done, with these small systems, in either a rate by volume or rate by area. So, rate by volume is where I have a given volume within a larger room, and I'm just gonna provide enough agent to flood that volume of space and so I can have different options with rate by volume application in the small systems. I can protect spaces up to 300 cubic feet with clean agents, gets a little larger for CO2, and the largest systems can be with dry chemical.
I can also do rate by area protection where I provide enough agent for a burning area within a space, where it just has a flat area usually containing some sort of flammable or combustible liquid, and then when it catches on fire I want to discharge just enough agent to extinguish the fire on the surface of that fuel. And so we're limited to 100 square foot of fuel surface, typically using CO2. And so, this picture shows us where we might be doing rate by volume protection in a cabinet, and this would be a picture of rate by area protection, just over this burning surface inside of this pan that has a combustible liquid within it. These are all pre-engineered systems, so we follow the manufacturer's guidelines for installation and then we wind up with a listed system.
Cylinder and tube systems are the typical way that we do these small systems. They include a detection tube that is both combination detection and suppression. And so the tube just looks like a little flexible, three-eighths diameter tube and it gets routed from a cylinder through the volume that we're protecting. Imagine that this is like an electric cabinet and we're routing this back and forth. When the fire starts, the flames impinge on that tube and it melts at around 212 degrees. When it melts, it forms a little nozzle and allows the agent to flow out of that, right to the space. So, it does both the detection and the suppression from that tube. And that's really called a direct system.
But we also have an indirect system where we just use the tube for detection, and we use a different tube for suppression to direct the agent to a nozzle. And that's pretty typical for CO2 systems.
This is part 7 of the Trending Technology Clean Agent Systems series. Watch the other parts at the links below:
- Part 1: What Are Clean Agent Fire Suppression Systems?
- Part 2: Are Fire Suppression Clean Agents Safe for People?
- Part 3: Common Applications of Clean Agent Systems
- Part 4: Types of Clean Agent Gases
- Part 5: How Do Clean Agent Systems Work?
- Part 6: New Technology in High Pressure Fire Suppression Systems
- Part 8: Localized Fire Suppression Case Study CNC Machine
- Part 9: In Cabinet Fire Suppression Technology
- Part 10: Advantages & Disadvantages of Rack Mounted Fire Suppression in Data Centers
You can also watch our previous series on Dialer and Communicator Technology Changes at the links below:
- Part 1: Off-Premise Signaling
- Part 2: History of the Network
- Part 3: NFPA Requirements
- Part 4: Radio DACTs Cellular & IP
- Part 5: What Type of Dialer?