Improved Oil Burner-reduction NOx and CO-Blue Flame

[Capt_Maloche]

We look forward to seeing you!

yes, indeed, I remade myself a piece of sheet metal in 1 / 2h from recovery each year,

but it's the only constraint, it costs nothing and I do that with my annual review

On the boiler side, no risk if the combustion is properly regulated, I for my part have no sign of any degradation, even incipient.

only the induction tube is subject to large variations in T °, ​​and therefore ends up cracking after a heating season

Wood does not have the same combustion at all as fossil fuels, what was this constructor? some pictures?

[NiWiDea]

Hello,

I will try a reproduction of this Capt_Maloche project,
it's been several years now that I'm this forum, without real participation.
I intend to get started by modifying my burner (bentone brand, .50 @ 80 ° nozzle) on a geminox fcx 22 boiler with a maximum power of 22kwh.
It is a condensing boiler, the burner has a diameter of 88mm, and the depth of the heating body is 29cm.

I have to dig up the material to make the CO measurements as well as the sheet metal 6 / 10th, I'm not sure I have enough depth on the other hand to make 3x the diameter, 264mm having only 29cm of depth.
I have to measure the overlapping area between the Maloche nozzle and the burner.

So much for this project, I hope to remove the soot on my boiler, given the quantity today ...

See you soon ! I'll keep you informed.

Nicolas

[NiWiDea]

Here is,

I move slowly, I have to keep my young son during the day, and I have putty work on my windows in progress (a real gruyère the putty had melted), it leaves me only a short time to occupy myself of my boiler project.

Today I made measurements, and here, I have a concern.

Indeed, the burner is fixed on the boiler via a circular opening of diameter 90 mm (by removing a little more I have an opening of 110mm) how will I be able to pass a tube of 124mm in this opening? I thought well to roll the sheet so that it passes in the opening and let it unroll, but I have no guarantee of succeeding in making it have the 'right' diameter, already that to pass a hand it is a horror ... who has a bright idea?


In addition I do not know how I could hold it on the burner, I do not have the possibility to put mounting "legs" with a cerflex, given the diameter of the tube ... on what can I rest my nozzle?

Finally one more point, the maximum depth is 29cm, the burner protruding by about 30mm in the heating body, how should I place the maloche nozzle? ie the tube must be 3x88 = 264mm long, roughly if I put this in my boiler I have 26mm of "free" clearance, roughly it would mean 13mm on the burner side, and 13mm at the bottom? will the space be large enough for the recirculation of unburnt ??? It seems a bit super "constrained" to me, doesn't it?

Thank you in advance for your support
I can't wait to have less soot, it's awful with each disassembly I feel like I have more and more, and for the moment I haven't changed anything at all.

Nicolas

[dirk pitt]

a photo of the burner's nose would have lit our lantern a little

[NiWiDea]

a photo of the burner's nose would have lit our lantern a little

I do not have the possibility of making a photo of it immediately, but here is the technical documentation of the burner:
http://www.bentone.net/Telechargements/spareparts%20fod/ST108-120.pdf

[Url] http://www.bentone.net/Telechargements/ ... 108FUV.pdf
[/ Url]

with the measurements and specific indications, it will provide more information than a photo I imagine.


Nicolas

[dirk pitt]

yep, the diameter of the diffuser tube being roughly the same as that of the hole, it's dead to fix something on it.

[Capt_Maloche]

Hello

Indeed it is a funny boiler!
Is there a hatch somewhere to clean the heating body, right?

[NiWiDea]

Hello

Indeed it is a funny boiler!
Is there a hatch somewhere to clean the heating body, right?

There is no other access to the heating body than that of the burner.

Nicolas

[gildas]

Oohh man of little faith!

I still point out that my old oil burner is now less polluting than the best gas boilers, not bad?

The purpose of the maneuver was to demonstrate the effectiveness of the water vapour within the combustion chamber, whether it be:
- recycled and from combustion
- or injected

What I just did, it still lights a little no?

ON VEHICLES, IT'S ANOTHER APPROACH but,
To any problem its solution, which says variable regime says system of adaptation, and after? it is only a question of percentage, of the quality of the mixture and of the flame temperature, we have just seen it.

Moreover, car manufacturers have not been mistaken there have mounted a valve EGR (recycling of flue gas) on all diesel but which opens only stabilized control regime for anti-pollution tests, they can not see further than the tip of their noses
because she is in all or nothing !! how do you make proportional with a TOR pneumatic control? moreover these valves are not designed to make the proportional, even by changing the order, besides that for it to be effective it is necessary to mix well the fresh air and the recycled gases, which again, is not well treated by the builders (well, with a blows a WITH would make sense to achieve this mix)

And then, if the system was proportional and well thought out, you would have no more soots or fouling of the circuit

I will initially block the EGR valve of my Clio 1.5DCI to 30 / 40% and I will do the same opacity test with my mixes of GO, since it is on the VOC (soot) that the results are the most visible, we will quickly set.

To keep the max power in case of need, simply leave the EGR valve electrically open and close it by a limit switch on the accelerator.

Hello,

What about the EGR valve?

Have there been any improvements to this valve (variable opening?) From the manufacturers or your tests apart from this one:

CQFD !!

So here, after 1200 km made this weekend with a mixture of Gasoil + 8% of SP95 and my EGR valve blocked at 30% in open position, on Renault Vel Satis 2.0 DCI, 150 FAP, 340Nm, 1680Kg 105 000km:

this model from Valéo:



Mounted like this:



And closure limited to 30% by a simple nut glued on a stop

Well, guess?

My consumption went down to 7.00 L / 100 all round for the highway journey to 140Km / h, which brings the autonomy of full to 1000km

Against 8L / 100 in "normal" diesel and around 7.5L / 100 with 8% of SP95

Gain another 0.5 L / 100, it's not bad for a first test at the "Pif", and that, just as a deduction from the tests carried out on my clean fuel oil burner

_________________

[Capt_Maloche]

Hello,

What about the EGR valve?

Have there been any improvements to this valve (variable opening?) From the manufacturers or your tests apart from this one:

Yes, that's it, proportional systems are now fitted in series on vehicles, but are they well controlled?

the question remains open

I just sold my VelSatis, and I now have a renault Espace 2010, equipped with the same 2.0 DCI 150CV engine but ... which is not equipped with a particle filter !!

suddenly, I checked, when I go up in the towers, always a cleaning of the catalytic converter, which made me think that at Renault, they continue to pilot the reinjection that for certain modes