My Gasification build

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I don't envy you having to weld around the tubes at the top there. There's some tight spaces in there.
Are you going to have some turbulators in those tubes?
 
How will you clean all of those tubes? Looks awesome but I can't help but think you're going to have some challenges keeping her running at her peak.
 
Thanks guys,

I don't plan on using turbulators- atleast not right away. I believe I will have enough/too much heat transfer as is, will need to see how the stack temps are after things get settled in.

The tubes should be easy to clean, they all have large access doors to them. I'll just get a pair of brushes to fit the large and small tubes and keep in the back of the boiler.

The welding wasn't bad, I did the welds before the boxes were assembled. Impossible(Impractical at least!) to weld both sides however. I double welded every other seam, would like to have done all seams that way, but just not possible.

This thing is H U G E. It looked soo much smaller on the computer screen lol. I feel a little stupid for making it so damn big, but I guess its better to have it too big than too small.
 
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The internal water volume looks massive! What do you anticipate quantity to be?
 
stayfitz said:
The internal water volume looks massive! What do you anticipate quantity to be?
Click to expand...


When sizing the water jacket, I calculated roughly, it was up to 400 gal without including the front/back 2" spaces, and directly above the firebox (tubing and space above). Should be in the 475-500gal range I believe.
 
Some nice welding there binfordw.
Are you going to weld some stays on the sides to keep it from bulging?
Is this going to be a non pressurized system?
Will it have a slotted nozzle or something different?
 
mr.fixit said:
Some nice welding there binfordw.
Are you going to weld some stays on the sides to keep it from bulging?
Is this going to be a non pressurized system?
Will it have a slotted nozzle or something different?
Click to expand...


Thanks,

Yes, I'm not fully decided on what kind of supports yet, but something to support the sides. I might drill holes and use a few lengths of 1/2" barstock through the jacket, that I can weld to the firebox. Might be tricky to reach, but doable.

Nonpressurized, and I'm thinking about 2 slotted nozzles.
 
Do you think you're going to be in the condensing range with all of that heat exchange area? If so, how will you manage the condensate?
 
stee6043 said:
Do you think you're going to be in the condensing range with all of that heat exchange area? If so, how will you manage the condensate?
Click to expand...


I have plans of adding an adjustable vent in the rear heat exchanger access box. It needs a separator plate, and I am making it removable to give more room for cleaning the vertical first pass tubes. Adding an adjustable vent on that plate should allow me to keep the temps at the stack higher if needed.

[Hearth.com] My Gasification build
 
I'm very impressed! Wish I had the time and skills to do something like this.
 
brant2000 said:
I'm very impressed! Wish I had the time and skills to do something like this.
Click to expand...


Thanks Brant, I wish I had the time too! I basically live in my shop when I'm not sleeping or at work (I run a small business at home as well). The pressures on to get everything ready, but I think I can pull it off.

New updates added tonight, Almost finished with my airbox!
 
I love it! This kind of creativity and industriousness makes small businesses and our country great! Big congrats. I'll bet your pretty successful with this kind of work ethic. Pretty handy to have a CNC Plasma cutter laying around. Are you going from CAD > G code > cut steel? I'm looking forward to seeing you make fire and heat.
 
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Tennman said:
I love it! This kind of creativity and industriousness makes small businesses and our country great! Big congrats. I'll bet your pretty successful with this kind of work ethic. Pretty handy to have a CNC Plasma cutter laying around. Are you going from CAD > G code > cut steel? I'm looking forward to seeing you make fire and heat.
Click to expand...


Thanks!

Yea, drawing everything in CAD, using CAM software to generate code and plugging that into my table software. Got a big ol' folder of files at this point!
 
I saw the doors on your other thread. Might be a little late now but... On my boiler the manufacturer sandwiched some insulation between the steel and refractory. It looks like a dense version of roxul. Might be something g to keep in mind if the steel is getting to hot.

Very nice work!
 
I wasn't too sure on the doors, I figured worst case they would last a season, and I could try something different next year. I think even if they get really hot, it should stay pretty even due to all the firebrick/mortar, and maybe prevent/minimize warping.


If nothing else, the doors are very, very stout. lol. I'll need to think out my hinges well.
 
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WOW. !!! Nice work binfordw!
 
Nice build!
 
That thing is effing huge!
 
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