psychoideas

Check out my new fire extinguisher!!
Bloke I got it off said it was from a Porsche, does anyone know for sure???

Cost me $107 delivered.

rusnak

Sorry I don't have a clue, but I want to ask where you are going to put it. I have one much smaller sort of loose in the front trunk due to indecision.

Ed Hughes

Yep, looks really big. Is it dry chemical or Halon? I've got a Halon mounted along the console next to passenger's feet-reachable by me. Halon, so if I ever do use it, I won't spend two weeks trying to clean white powder off of everything.

psychoideas

It was mounted east west in front of the passenger seat. It's a 4kg and the tank is about 1 foot long and 5 inches in diameter.

Halon is illegal down here except for aircraft. I believe it's our old BCF extinguishers. Apparently f#@ks the ozone layer........

We can only use dry powder, carbon dioxide, and a thing use for oil and grease fires in kitchens. oh, and water.

MUSSBERGER

They are carving giant holes in the ground to get to coal and they're worried about Halon?

psychoideas

You are so correct!!!

bart1

Looks mighty similar to a 993 Cup:

https://rennlist.com/forums/993-foru...cs-inside.html

http://www.germansportscars.net/GB/c...3-cu/243/2404/

Bob Rouleau

Looks like the fire bottle supplied with the clubsport kit and standard in the Cup cars.

DesignerGenes

Don't forget to get out of the car before using the Halon -- it kills too.

On another matter, bart1. Damn, I like that Adventurine Green!

Danny_Ocean

Not true...you have your Halons mixed-up:

At high temperatures, halons decompose to release halogen atoms that combine readily with active hydrogen atoms, quenching flame propagation reaction even when adequate fuel, oxygen, and heat remains. The chemical reaction in a flame proceeds as a free radical chain reaction; by sequestering the radicals which propagate the reaction, halons are able to "poison" the fire at much lower concentrations than are required by fire suppressants using the more traditional methods of cooling, oxygen deprivation, or fuel dilution.

For example, Halon 1301 total flooding systems are typically used at concentrations no higher than 7% v/v in air, and can suppress many fires at 2.9% v/v. By contrast, carbon dioxide fire suppression flood systems are operated from 34% concentration by volume (surface-only combustion of liquid fuels) up to 75% (dust traps). Carbon dioxide can cause severe distress at concentrations of 3 to 6%, and has caused death by respiratory paralysis in a few minutes at 10% concentration. Halon 1301 causes only slight giddiness at its effective concentration of 5%, and even at 15% persons remain conscious but impaired and suffer no long term effects. (Experimental animals have also been exposed to 2% concentrations of Halon 1301 for 30 hours per week for 4 months, with no discernible health effects at all.) Halon 1211 also has low toxicity, although it is more toxic than Halon 1301, and thus considered unsuitable for flooding systems.

However, Halon 1301 fire suppression is not completely non-toxic; very high temperature flame, or contact with red-hot metal, can cause decomposition of Halon 1301 to toxic byproducts. The presence of such byproducts is readily detected because they include hydrobromic acid and hydrofluoric acid, which are intensely irritating. Halons are very effective on Class A (organic solids), B (flammable liquids and gases) and C (electrical) fires, but they are totally unsuitable for Class D (metal) fires, as they will not only produce toxic gas and fail to halt the fire, but in some cases pose a risk of explosion. Halons can be used on Class K (kitchen oils and greases) fires, but offer no advantages over specialised foams.

Halon 1211 is typically used in hand-held extinguishers, in which a stream of liquid halon is directed at a smaller fire by a user. The stream evaporates under reduced pressure, producing strong local cooling, as well as a high concentration of halon in the immediate vicinity of the fire. In this mode, extinguishment is achieved by cooling and oxygen deprivation at the core of the fire, as well as radical quenching over a larger area. After fire suppression, the halon moves away with the surrounding air, leaving no residue.

Halon 1301 is more usually employed in total flooding systems. In these systems, banks of halon cylinders are kept pressurised to about 4 MPa (600 psi) with compressed nitrogen, and a fixed piping network leads to the protected enclosure. On triggering, the entire measured contents of one or more cylinders are discharged into the enclosure in a few seconds, through nozzles designed to ensure uniform mixing throughout the room. The quantity dumped is pre-calculated to achieve the desired concentration, typically 3-7% v/v. This level is maintained for some time, typically with a minimum of ten minutes and sometimes up to a twenty minute 'soak' time, to ensure all items have cooled so reignition is unlikely to occur, then the air in the enclosure is purged, generally via a fixed purge system that is activated by the proper authorities. During this time the enclosure may be entered by persons wearing SCBA. (There exists a common myth that this is because halon is highly toxic; in fact it is because it can cause giddiness and mildly impaired perception, and also due to the risk of combustion byproducts.)

Flooding systems may be manually operated or automatically triggered by a VESDA or other automatic detection system. In the latter case, a warning siren and strobe lamp will first be activated for a few seconds to warn personnel to evacuate the area. The rapid discharge of halon and consequent rapid cooling fills the air with fog, and is accompanied by a loud, disorienting noise.

Halon 1301 is also used in the F-16 fighters to prevent the fuel vapors in the fuel tanks from becoming explosive; when the aircraft enters an area with the possibility of unfriendly fire, Halon 1301 is injected into the fuel tanks for one-time use. Due to environmental concerns, trifluoroiodomethane (CF3I) is being considered as an alternative.

theiceman

blah blah blah .. Frank I am convinced it is a rocket booster no wonder those cup cars are so fast ..

Ed Hughes

Way too much info....

Danny_Ocean

Just trying to quash an "old wives tale". Jump out of the car before deploying Halon? Not necessary. Jump out of the car before your *** catches on fire? Good idea.

However, I hear there are some Nigerians who need help moving $20M USD out of their country...

bart1

Thanks - me too!

psychoideas

G'day Ice,

I'm hoping to use it to fire up my "rocket" before the end of the year