Economy fuel polishing

[model 10]

Where are you going to get a fire? Somewhere near the alternator or starter wires maybe? I don't run them together with fuel hose so I don't see that happening. I've heard of hyd transmissions catching on fire, so maybe that is a big problem, but not normal. Heat from the exh is often a fire hazard but not if you have water flow.

[Emmalina]

Originally Posted by Simi 60

Are they a dry powder type?

Thinking along the same line in our ER but concerned about dry powder damaging engine and all the other gear.
Saying that, fire will do plenty of damage as well and the several handhelds we have outside the ER are dry powder anyway.

$180 for 12kg seems good pricing.
Strange how the most affordable ones I have found are always at Hydroponic shops.

https://www.hydroexperts.com.au/Flam...nics-Grow-Tent

BF2000 is a non cfc Fire suppressant that doesn't damage anything its a replacement for Halon

[Emmalina]

Originally Posted by thinwater

Once a good fuel leak starts, it will run the length of the bilge, fire extinguishers or not. Then it may start to burn lots other fun places. I once watched a fuel fire (hose chafed on diesel truck) spread to a whole row in just a few minutes. Most people don't believe how fast diesel fires spread. It won't go "bang" like gas, but a leak combined with fire will give you just barely enough time to get off the boat.

Burst a tank once and the bilge pump pumped it all out wasn't to happy as i could have recovered most of it !

[Emmalina]

Originally Posted by GILow

Come to Australia mate, I can introduce you to a whole lot of fresh new sea-going phobias.. like stone fish, blue ringed octopus, bl--dy great big sharks... or if you'd like some land based phobias there's snakes, spiders the size of your head and scorpions in practically anything you leave on the ground for more than a minute.

If you' prefer a more abstract phobia we can also do drop bears and hoop snakes.

It truly is a land of opportunity.

But yeah, fire on a boat is BAD. I had a spot inspection by a police boat a few years back and he went from being pretty happy with my fire suppression systems to starting to worry if maybe I was compensating for something. We parted on an awkward note.

Happy in SE Asia thanks !

[Emmalina]

Originally Posted by Simi 60

Are they a dry powder type?

Thinking along the same line in our ER but concerned about dry powder damaging engine and all the other gear.
Saying that, fire will do plenty of damage as well and the several handhelds we have outside the ER are dry powder anyway.

$180 for 12kg seems good pricing.
Strange how the most affordable ones I have found are always at Hydroponic shops.

https://www.hydroexperts.com.au/Flam...nics-Grow-Tent

https://www.sirasafety.com/en/produc...her-bf2000-en/

[GILow]

Originally Posted by Emmalina

https://www.sirasafety.com/en/produc...her-bf2000-en/

Triggers at 58 degrees C. THAT's not going to be great in an engine compartment.

[Simi 60]

Originally Posted by GILow

Triggers at 58 degrees C. THAT's not going to be great in an engine compartment.

Better than 500c

What temp do you suggest it should trigger at ?

[MartinR]

Originally Posted by GILow

Triggers at 58 degrees C. THAT's not going to be great in an engine compartment.

That is correct, it will probably trigger without a fire. 90C is what is required.

[Simi 60]

Originally Posted by MartinR

That is correct, it will probably trigger without a fire. 90C is what is required.

Never seen higher than 38c in ours and we run a big engine with turbo.
Probably better ventilated than many.

[Emmalina]

Originally Posted by Simi 60

Never seen higher than 38c in ours and we run a big engine with turbo.
Probably better ventilated than many.

Can sit in my engine room no problem its big and well ventilated !

[thinwater]

Originally Posted by Emmalina

Burst a tank once and the bilge pump pumped it all out wasn't to happy as i could have recovered most of it !

I was not actually trying to convince you of anything. You have made up your mind.



I was explaining to others that most fuel fire safety construction standards are from smart people in the industry and are based on hard won experience. Unlike, say environmental rules, they are not hatched by regulators.


I'm guessing the tank failed due to corrosion and lack of inspection?

[GordMay]

Originally Posted by Ecos

Where are you going to get a fire? Somewhere near the alternator or starter wires maybe? I don't run them together with fuel hose so I don't see that happening. I've heard of hyd transmissions catching on fire, so maybe that is a big problem, but not normal. Heat from the exh is often a fire hazard but not if you have water flow.

Whilst there may be innumerable ways to not have a fire, it only takes one to ruin your day.

[a64pilot]

I have a small automatic Halon in my engine room, but automatics aren’t necessarily very good.
Reason is that at normal cruise a large portion of the fire extinguishing agent will go right through the engine, hopefully shutting it down of course.
By all means have an auto one, but also have a largish hose type extinguisher available, and a “window” into the engine room that you can see thru and pass the hose of the extinguisher through to discharge it without opening the room itself.
I have a Halotron extinguisher for that, with a hose. Completely gaseous like the Halon, only half as effective, but doesn’t damage the environment. So as it’s half as effective, get a big one. Fire extinguishers are like anchors, within reason bigger is better.

[MartinR]

Originally Posted by Simi 60

Never seen higher than 38c in ours and we run a big engine with turbo.
Probably better ventilated than many.

Depends on where you cruise, if the outside temperatures are close to 40C you will get much higher in the engine room.......

If you have a blower, temps will be lower than without, but if the blower stops, then temps will increase quickly. Also, there will be radiated heat reaching the sensor, especially after the engine is stopped.

90C was the requirement from the Swedish Maritime Administration when I installed a sensor a few years ago. In a fire 90C will be reached very quickly, so the delay is very short.

Personally I am not fond of automatic systems, better to have an alarm and a fixed system you can release manually, AFTER you stopped the engine and blower.

[MartinR]

Originally Posted by Ecos

Where are you going to get a fire? Somewhere near the alternator or starter wires maybe? I don't run them together with fuel hose so I don't see that happening. I've heard of hyd transmissions catching on fire, so maybe that is a big problem, but not normal. Heat from the exh is often a fire hazard but not if you have water flow.

For example, small leak in injector piping. High pressure means that a fuel mist will develop, which is very easy to ignite. Any reasonably hot part of the engine will do.

That is why commercial vessels have double mantled injection pipes and all hot parts of the engine have thermal insulation.