spotted this in carpark by beach in cornwall,mounted on towbar/chassis in alloy box providing its own power to run 240volt bathroom fan to assist in cooling, must be very quiet.did not speak to owner must of been on the beach,brill idea.
I can only assume it is heavy on petrol. Engines don't run that well unless they have oxygen. That box will be holding a lot of exhaust gasses including potentially explosive carbon monoxide.
We spotted a similar idea attached to a mobile fish and chip van that visits the CC site at Sandringham, it was on a 'swing out' type of hinge, so that it could be quickly and easily be moved out of the way to open the rear door to the servery area.
Very noisey though, and we could smell the fumes from it several pitches away.
Julia
------------- Just love to be out amoungst Nature and Wildlife
Celebrating 37 years of Caravanning in 2019, Recently Considered Retiring, but Totally Addicted for Life!
Quote: Originally posted by LegsDownKettleOn on 03/6/2011
I can only assume it is heavy on petrol. Engines don't run that well unless they have oxygen. That box will be holding a lot of exhaust gasses including potentially explosive carbon monoxide.
I doubt whether carbon monoxide is explosive otherwise all our cars would have blown up by now! There is a fan mounted on it so obviously pleanty of oxygen flowing around.
Believe me, high concentrations of carbon monoxide are explosive. I have seen it explode and it goes off like a bomb.
The air intake of the generator creates a vacuum each time the inlet stroke occurs. I don't know the cylinder bore/stroke of the generator but would be surprised if were much under 30 cc. Therefore every 30 or so strokes it needs a litre of air. Multiply that by the number of rpm the engine is doing and that's a lot more air than they little fan is moving.
With a bit of luck , the builder of this unit will see this post and make contact . The job looks carefully made . I think the exhaust vents directly via the circular aperture so reducing gas build up in the box and the fan may be drawing in air just to assist with cooling but it will assist with clearig gasses from the box , it is amazing how much air they can move . There may be other apertures on the rear or underneath to assist intake and exhaust gasses . It will be interesting to know if the air flow has been properly calculated . This may not be designed for use on site , just for ``wild camping`` or similar away from caravan sites .
Quote: Originally posted by LegsDownKettleOn on 03/6/2011
Believe me, high concentrations of carbon monoxide are explosive. I have seen it explode and it goes off like a bomb.
The air intake of the generator creates a vacuum each time the inlet stroke occurs. I don't know the cylinder bore/stroke of the generator but would be surprised if were much under 30 cc. Therefore every 30 or so strokes it needs a litre of air. Multiply that by the number of rpm the engine is doing and that's a lot more air than they little fan is moving.
Just had a word with my sons on this subject as their fire fighters..Carbon monoxide on its own is not explosive,its unburnt fuel that might be present.thats why you see flames out of a cars exhaust.You need three things to make an explosion,air heat and fuel..
We had an explosion a few years ago in work in a generator flue. The manufacturers of the generator investigated and they put it down to a build up of carbon monoxide in the flue. Their words, not mine. The combustion conditions that give high levels of carbon monoxide though are normally the same conditions that lead to unburnt fuel. It's my understanding that the carbon monoxide will permit combustion if their is enough heat without additional oxygen (carbon monoxide consisting or carbon and oxygen) as the bond between the elements is weaker than those of carbon dioxide.
Fortunately no one was injured, but the previously round flue had been blown open with such force, the round sides were straightened out into flat plate.
I was on my way into work when it happened, about half a mile up the road and thought a bomb had gone off. (It wasn't long after the 9/11 attacks)
Either way, any exhaust fumes being pulled into the air inlet are not going to make for smooth running.
Perhaps if it was seen physiclaly, we may all be able to comment better. There could be drop holes undernearth there could be another fan or large apertures on the other side. We cannot see.
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Topic: honda generator
