Ok Guys!! Im working on a new DIY gasifier anyone can build with some basic skills. This will be constructed out of Ammo boxes and a 5 gallon steel pail. You will need to cut some steel to create some internal shielding and a grate. Other than that you will need to drill some holes and use hole saw for your port openings. Everything will be bolt together.
I will start a series on this build starting this weekend if not sooner!!
I’m struggling to get my ammo can build to flare. I’m trying with store Bought lumb charcoal just to try to get build up and running. sorry for poor quality video. any suggestions on what Iv done wrong or doing. any suggestions?
Yeah that would probably work. You want 4 to 6 inches between your grate and the jet on this size gasifier. Larger you would increase this distance. You only need a few inches under the grate just enough to allow the gas through un restricted.
I was able to find some 6” channel that I think will work for the heat shielding and grate support as well as drilling holes in a flat piece for the grate. What height should the grate be if the nozzle is 6” from the bottom? Do I also need shielding for the sides below the grate? I’m thinking I could use the side that will be cut off from the top of the channel. Otherwise there’s not much of a gap between them.
Have you tried using an 81 mm ammo can? It looks like they’re slightly taller (22” vs 19”) but much heavier (20 lbs vs 8.5 lbs) which I took to mean thicker walls. They also have some external reinforcement that should stiffen the walls up. I was hoping not to need the heat shields if the walls are thicker, just something like angle to support the grate.
For the grate, would a floor register work? I do not have much experience with fabrication so am trying to figure out what I can use off the shelf. Otherwise I’m planning to use expanded metal.
Looking forward to actually trying gasification after lots of reading over the last few months. Planning to start with a 4375W HF generator with the 212cc Predator engine.
Its up to you, I generally use 1 inch NPT for most small engines. Your valve just needs to either match the gas hose diameter or at least be more than half of the diameter. 3/4 of the gas hose diameter is probably best, This will give you the range you need plus it will be easier to fine tune the mixture.
What is the size of the air/fuel mixture valve? 1" or larger?
Should work fine if anything it will help the lid stay cooler if the can is taller. I would have used the taller one but I wanted to make it as compact as possible. Warning though do not run engines any larger than 212 cc. This size is already at the limits of what the thin metals can handle.
What negative consequences, if any, do you see from using at 120mm ammo can instead? Base dimensions are the same as the 60mm, it's just much taller. I understand the internal gas pipe will have to be longer. Obviously the goal is more fuel. Do you think the fuel would pack/lock?
It might be difficult to reach in there to do the work towards the bottom
Here are online sources for the 60mm and 120mm ammo cans.
Alright first and second segments of the video tutorials are complete. This is the basic build construction and conversion of the 60mm ammo box along with adding on the water drip tank. I go over how Im building a new jet system as well that has not been tried before. Im editing video now and those will be up as soon as I get the editing done and uploaded to Youtube.
Next will be to build the filters, start up blower and mixer valve.