This project goes over the build of a simple gasification system that functions to produce wood gas for running a generator, a cooking stove and for lanterns. We feed the wood chips and other materials through the opening at the top of the gasifier ,the air also gets drawn in from the top .The air would drop through the wood mass, down to the reduction zone and gets collected down at the bottom of the tank through the output pipe .
The materials needed to build this down draft style gasifier are a 3 old propane tanks, old steel sheets, wood pellets.
The first step is to make sure that propane tanks are empty .Remove the handles from the top of the 3 propane tanks and unthread the valves.
Cut the top portion from 2 tanks and stack the body of the tanks on top of each other and weld it. One of the cut out top pieces can be used a lid .
The bottom portion of the lower tank is cut open to create the reduction zone of the gasifier. To make the reduction point, we take the scrap steel sheet and make a five inch wide small tube of the them and weld them to the bottom third propane tank .
The bottom five gallon propane tank is used as a ash bin where all the ash is going to get caught and as an outlet for all the gases coming out of the system. The top portion of this tank is cut in such a way that it fits the reduction zone collar of the secondary tank.
Make sure that both the tanks fits nicely together so that you can pull the inner chamber out of the bottom ash tank to remove it, dump the ash catch out and use it again and again.
The top of the upper tank is cut open .This acts as the feed area where all the wood pieces are dropped in.
We make a screen with holes using a 20mm hole saw cutter from the leftover cutouts of the propane tank. We are gonna mount this screen inside the gasifier lower reduction zone.
A hinge and a wire is attached to the screen so it can open and close. This gives us the ability so we can shake the screen if it plugs up with ash or other materials. The wire goes through the reactor up to the top .
We have a pressure relief system installed on the lid of the gasifier. If anything were to happen inside of the gasifier , the build up pressure can be made to escape through the top lid .This is done by hooking up two springs on both sides of the lid through small loops .The springs on both sides is attached to hand levers.
We drill 8 half inch diameter holes just above reduction zone area and put thick steel tubing through them to the center of the chamber. The airflow will go in and be drawn down through the center of the reduction zone that helps in efficient burn. The pipes are curved in to the chamber so that it does not interfere with any wood mass as it goes into the reduction zone. We add plugs along these 8 tubes to regulate the air flow into the system.
Next step is to add the draw fan to the gasifier. Here we use a pellet stove fan .We add a 2 inch plate over the face of the fan and a threaded pipe to seal any air going into the gasifier.
We start up the gasifier by putting some chopped wood through the top and use the fan to get the wood gas producing out of the bottom outlet pipe.
- How to build an Efficient and Inexpensive Double Barrel Garage Heater from Scrap metal.Step by step Video Instructions
- DIY Video : How to get Gold from Scrap Computer parts that you can find at the junkyardThis project goes over how you can easily refine and smelt Gold from Old Scrap Computer Memory Chips . The materials you need for this project are some Muriatic acid,Hydrogen peroxide,Urea,Sodium Metabisulfite,Nitric acid. Cut the little gold fingers from the chips using a heavy duty scissors.Get right to the edge of the gold and cut that off. Okay, now that we've got all the fingers cut off of our memory chips, we put them in a plastic container.And in equal parts, we're going to add our hydrogen peroxide and our muriatic acid. Let it sit for 24 hours.If you can put it out in the sunlight during the days or the day time and then bring it back in at night,that's ideal. Drain the mix through a coffee filter and into another plastic container. And then we will rinse distilled water in these fingers and go through each one of the fingers and make sure there isn't any gold left on them. Filter the Gold granule filled water using a coffee filter,add sprinkles of distilled water.This helps to move those tiny granules around. Add some nitric acid and muriatic acid to the gold mix and put it on a hot plate or a coffeemaker and turn it low.Let that gold dissolve into the mixture. Strain the mixture through a coffee filter and rinse them though distilled water and put it on a burner. Now we are going to add Urea. Basically what the urea is going to do is neutralize the acid, we're going to start with one tablespoon of this, and then keep adding it stops bubbling that's all the acid neutralizing right there. Now we're going to add our sodium metal by sulfate, we're going to add two teaspoons of that. And that's going to turn all that liquid gold into metal. Let the mixture sit overnight and let it settle down.Everything on the bottom is going to be our gold, and it's going to be ready to smelt. Heat them till its melted and upon weighing its around 1.91 grams. Next step is testing the gold we have produced and see how pure it is. We use different acids based on the karat.If there is no reaction from the acid test,ifit's not changing colors, and it's not dissolving ,then we have a pure 22 or 24 karat gold here. If you follow this process, you will be able to convert all of your old and outdated computer chips into pure gold that you can turn around and sell for money. It’s a great way to salvage your old electronics and get some value out of them. https://www.youtube.com/watch?v=8lXd85YfcvY https://www.youtube.com/watch?v=5c9Z5UYsUV4 https://www.youtube.com/watch?v=qkmhEGBjyMs
- How to build your own DIY off grid / grid down Solar Power Back up system from scratchThis project goes over the build of a Solar Power Grid Down Backup System to generate your own alternative power.A great way to utilize renewable energy as a backup source of power. Whatever may be the reason , may be to offset electricity bills or for self reliance to provide when the grid goes down, a solar backup system is simply a great way to provide alternative power to maintain a lifestyle of reasonable convenience. If the grid should go down, I can have a freezer, power lighting, pump water, maintain communications, use tools, and charge every little device I have from flashlights to kindles. This Off grid Solar Power System is composed of 5 components. Solar panels to generate the power, a charge controller to charge the batteries, the batteries to store the energy, the inverter to provide AC to the household items you wish to power. Also you need a Kilowatt meter. The kilowatt meter measures two things you have to know how much energy your devices draw at any given moment, and how much power they consume over time. Here we use 100 watt monocrystalline panels, a 40 amp MPPT charge controller, a 1000 watt pure sine wave inverter and to store the energy, 446 volt golf cart batteries totaling 470 amp hours. First you need to size your system by figuring out how many devices you are going to want to run at the same time. This will determine the size of your inverter, the inverters function is to take DC power from the batteries and converted to AC power for use with household appliances. If I have 1000 watt inverter, this means I can run up to 1000 watts worth of devices at the same time. Once you have evaluated every device that you feel that you are going to need, should the grid go down, you are gonna have a good idea of how much power you need to generate each day. The battery bank consists of four, six volt, Duracell SLIGC 125, golf cart batteries connected in series. Golf cart batteries are designed to deliver a lower amount of power over a longer period of time and then recharge quickly. When picking a spot to locate your panels, you have to consider that the sun will be lower towards the horizon in the winter, and closer to directly overhead in the summer. Building a system that actually tracks the sun would be best as the panels are always pointed directly at the sun. Also mount your panels as close as possible to the batteries. This is because the longer your wire run, the more energy is wasted due to resistance. You also need to select the proper gauge wire to transmit the power from the solar panels to the batteries. Between the panels and the batteries is the charge controller ,it controls the charge of the batteries and make sure that the batteries get the proper voltage that they need and that they don't get overcharged. Here we use an MPPT Solar Charge controller. If your solar panels are wired in series and connected to an MPPT charge controller, the voltage adds up ,thus giving us enough voltage to charge the batteries. An MPPT charge controller can charge your batteries nearly the entire time The sun is out. If your panels are far away and you want to save money and wiring, then the MPPT charge controller is way more efficient than PWM. The first step in making your solar system safe is making sure that there's an automatic and a manual way to disconnect power in each segment of the system. Starting right here at the battery box we have a 300 amp manual switch to kill the power from the batteries to the inverter as well as a 200 amp fuse that will blow automatically. Another component to the safety is the grounding. Grounding your system is quite easy to do. So get an eight foot grounding rod and drive it into the ground. Then pick up some copper grounding wire, some lugs and connect the frames have all the panels in any metal components in the system including the charge controller and the inverter.