This project goes into the build of a homemade alternative offgrid power generation system using a water wheel and flowing water source like a stream or creek. In order to catch the water from your spring or creek , the first step is to build a small dam. This enables us to produce maximum power from the running water wheel .
First, We use a 4 inch pipe to divert the water before starting the construction of the dam. With a solid concrete foundation ,we aim to make a 42 inch dam with 30 inch of head . A six inch 36 inches long PVC drain pipe is installed on the high water side .The dam is constructed using four layer of hollow blocks and quickrete blended mason mix .Try raising the water higher to see how much higher it needs to go before it overflow through the sides.
The dam board gates made of deck boards are installed in the middle .The back board and the front boards are spaced apart an inch and three quarters. The dam stop gate made of plywood with dimensions of one and half is inserted between the boards . To get a tight seal a half inch rubber tube is stuffed between these boards.
With a 13 and half inch treated plywood and couple of 2X6 plywood side boards, the flume is built. The side boards are glued to the plywood base using adhesive sealant and screwed with exterior grade screws.
To resist twisting and to keep the width of the plywood steady , four cross spacers are installed on the flume board. To divert the water without having to drain the dam, we make a small trap door in the flume near the opening . The trap door is made seven inches back from the face of the dam. The door is supported by a flange around the back and a stainless steel hinge.
The flume is installed on the creek with the help of rebars and supporting deck boards. The rebars are attached to the boards using u-bolts and drill bit. Three more subsequent flumes are attached to each other. The gap between the flumes are sealed with poly foam caulk rope.
The waterwheel is made out of a section of 55 gallon HDPE drum . The blades are made of 4 inch PVC drain pipe. The blades are curved so that it retains most of the water making it more energy efficient. 24 blades are attached to the drum using 16th by half aluminum angle pieces.
A three quarter inch jack shaft from an old go-kart is used as the drive shaft. This is supported at both ends of the wheel with a help of pillow block bearings. Two 28 inch Circular end pieces made of plywood is bolted along both sides of the barrel using a 6 ten inch long half by thirteen carriage bolts to make the wheel build complete.
Two square collar blocks are mounted on to shaft to center them. The holes are larger than the shaft so that the wheel can be adjusted to get the runouts reduced.To center the waterwheel and to adjust the runout of the center shaft , we use four blocks and adjustment bolts around the center block like a four jaw chuck .
To install the water wheel securely, a support structure made of 2×4 boards are installed near the end of the flume. The water wheel is secured on these support boards with the help of couple of swivel block bearings.
We use an adjustable Unistrut to mount the bearings,sprockets and the motor. This can be adjusted for chain tension as well. The Unistrut will stand vertically on top of the cross support that is under the flume.The Unistrut’s are mounted onto the wheel on both the sides with help of bearings and T-nuts. A Number 35 sprocket with 72 tooth is mounted onto the center wheel shaft.
This sprocket is connected to a half shaft with 11 tooth sprocket with the help of a size 35 go kart roller chain. A Permanent Magnet Brushed DC motor mounted on 2×4 board is further connected to this shaft via another sprocket. This gear system has a ratio of 30.86:1
Using unistruct angled brackets, the wheel is mounted onto the support board near the flume. The wheel is positioned near the flume in such a way that the water where it meets the wheel is exactly at the top.
The charging system consists of a 12V DC emergency standby battery, MPPT charge controller, 300W sine wave inverter . The connection from the water wheel DC motor goes to the charge controller.The charge controller is also connected to the battery.
Finally the inverter is connected to the battery which is further connected to a load. To make this charging system secure, make sure to make fuse connection between the components. All these components are mounted on a temporary wooden board.
- DIY Video :How to build a Wood Stove that runs a generator, produces gasoline,runs a fridge and act as a water heater at the same timeThis is a wood powered gasifier stove that produces gasoline runs your generator, runs your propane hot water heater, heats hot water for you all off the grid. A simple design of a mini gasifying woodstove prototype here you've got some open latches, open up the door, the doors got the baton handle so it naturally stops on the downfall Inside the firebox, I've got a gasification style system built in there.One of the key things about a gasifying woodstove is that not only can I run it in a typical gasification wood stove manner, heat my home. But if I reverse that action with a fan and a draw system underneath the stove, with the ability to shut off the flow out the chimney pipe, and then draw down underneath the stove, reverse the action of the system, I can produce syn gas that can go outside and into a generator. This system has little latch up here at the top drops open so you can get in there work the material around.By actually pulling the little latch out and the bottom of the main gasifier inside of there to shut it and rotate it locks into place .It is actually a dump plate on the bottom of the main gasification chamber so that all the ash and all the coal that's not burned can dump out of the system into a tray below. A secondary burn system with two layers of stove pipe, one smaller inner diameter stove pipe and one larger one is made for a better burn to take place with fresh air inlets right there in the chamber. The outer sleeve stops below the bottom allows air to travel up in between rise up to the pipe.There is a set of burner holes that makes sure to mix fresh oxygen that creates a swirl in there and helps burn any leftover syn gas in the production system. So there's no smoke coming out of this in the end. Inside the woodstove is the inner chamber holds all your material, it gets hot and then creates an airdrop between this outer wall and the inner chamber wall that airdrop comes out these holes mixes fresh oxygen into the top of the system with the smoke and burns it. The bottom holes allow air to dry in from the bottom to complete that burn as the material burns down to the bottom. It also works slightly as a venturi system as air is drawn up these walls towards these holes, creates a vacuum down here at the bottom holes and pull some of the smoke out a downward draw into the system and pull some of it into here helping mix some of the smoke With the air and will swirl it so it'll burn cleanly. The single air inlet hole is used to pull the smoke out of the bottom to reverse this process to put syn gas out of this stove outside into a generator. There is inner set of holes in the bottom of the stove pipe.This helps mix air between the walls.The air gets drawn up between the wall since the inner pipe is longer than the outer pipe which mixes fresh air and completes the secondary burn to make sure there's no smoke coming out of this pipe. This is gonna be the bio crude oil production system here which is basically another term for a creosote that you produce from syn gas production, otherwise known as gasification production. It's got just a single pipe rolling out of the backside of it which is connected to a creosote collection container. As this gas starts to cool, it's going to come up to here it's going to work its way up hill, as it does so the hydrogen inside of the gas will be the lightest of all the gas is traveling uphill and definitely make it over the top much of the creosote we built re drip down into the second collection container here. Now the rest of its gonna go up cross through the pipe here and come down to a condenser The reactor shown here is made of two of five gallon steel cans.I cut the top off of one and the bottom off of another and slid them over each other. So they make a really long slide seal over each other one pipe, as you can tell here, welded in. With an elbow, it's a one inch pipe coming out of the back of they're welded in with an elbow. The downward slope of the pipe force the smoke to release as much of this crude as it possibly can. Because it's actually wanting to go uphill, which would be easy to smoke not going to cool real quickly. by forcing it slightly downhill, we're forcing a lot of that heat energy out, making sure it's releasing a lot of that, let's call it creosote or bio crude. It also allows for the creosote to roll down the bottom of the pipe into a container. The gas moves through a reduction point which reduces the pressure.The gas gets refined and reduced slightly in volume through the system. Hydrogen, carbon monoxide and all the rest of the lighter gases are going to easily flow up this pipe through thermodynamic pressure. Now you've cooled a lot of that gas by running it downhill, trying to bring in into this lower container as much the second grade creosote as you can, or biocrude. Now by running it up hill again, you can really force all the heavy hydrocarbons and other elements inside of this to focus out of the hydrogen gas and the carbon monoxide. This is a downhill pipe that's going to go anti the direction of natural thermodynamic processes that'll help condense out or precipitate out some of the oils at a much faster rate than it would be if that pipe was going the natural thermodynamic flow direction.The first catch is going to be the heaviest and thickness of the current Crude oil. It goes down that pipe from a reduction point here into the secondary catch.This comes up the hill here at the lighter gases not yet condensed, rises across loses a lot of energy and now is once again restricted into a quarter inch copper gas pipe into a 5 gallon water tank with a 20 loop condenser coil inside . The pipe out of that tank runs into a one gallon pickle jar. The next pipe comes out of the top of the jar, we're not actually trying to put it down too far because you don't want to bubble and once it starts to fill with crude oil, you just want to grab them the lightest of the gases, the hydrogens and the nitrogen, carbon monoxides and others that are still left within this system you want to grab, grab that right off the top. Now it comes up this pipe here goes through the T and once again we have a secondary condenser that this goes through now it's about four or five loops going through there, comes out through there. And that's where the liquids gonna condense from this condenser that's where it's going to be caught. The liquid will be flowing, dropping the jug and the lighter Smoke will continue on now down the pipe. The result of the bio crude oil project collecting 4 grades of oil.So the next step of this project now is to put this all through the refinery, which will actually be connected inside the woodstove that made all of this. So in the end, what we'll have is all the liquid being produced the crude oil once again, flow back to the woodstove go through the refinery out the refinery tower, and on the other side, we'll have a high grade fuel to use in any engine. https://www.youtube.com/watch?v=M1imlOX2pGI
- How to build an Offgrid Wood Gasifier that can produce alternative free fuelThis project goes over the build of a cross flow wood gasifier that powers a generator or a car or any kind of internal combustion engine using nothing more than wood scraps, paper, coal or any other organic materials. This unit was built in nothing more than an angle grinder, and a hand drill and parts that you can find lying around. These devices are taking advantage of a process called gasification, in which you can take any kind of organic biomass, really anything natural that burns and by heating it up, you are able to break it down through a process called pyrolysis to its basic elements. This creates a gas called syngas or wood gas. Here we are burning biomass in an oxygen deprived environment. And that heat which is sustained through just enough oxygen to not spread to ignite the gases produced by the heat interacting with the surrounding material is the process that we are using to create wood gas. The gases coming out contains things like water vapor from moisture content in the wood, also creates tar and creosote .So we need to filter out the gas. And the main concern of getting that gas to be clean enough to run an engine is by cooling it down. We connect the unfiltered gas coming from the pressure pot into a radiator to cool it down and then further connected to a bucket filled with saw dust to filter . The reactor unit is made of an old 5 gallon painting pressure pot . The first step is to burn it out removing old residue and paint. Also burn out the inside container as well. Make sure everything on the lid of the pressure pot is removed and sealed off with a plug or bolt. Remove the rubber gasket on the backside of the lid. The holes on surface of the lid are covered with three eighth inch bolts. At the bottom of the pot , we attach two pipes for the the air intake and the syn gas suction output. These pipes are held tightly to the pot with the help of one and quarter inch pipe flanges. The air comes up from the bottom, the gasification happens in the middle of this reactor and the ash gets sifted to the bottom through a passive shaker grate. The output pipe is capped at the top to prevent the residue ash going out and small holes are drilled along the pipe to allow the wood gas to pass through. Next step is to build the grate insert where the fuel will actually sit on and burn on. The grate will sit about two and a half inches off the bottom of the pot. The grate is made from the other stainless steel container that came with the pressure spray painting pot. Grid of holes are drilled along the surface of the grate using a quarter inch drill bit. The grate is finally is inserted into the reactor pot chamber . The gasket on the back of the lid of the pot is removed and replaced with fiberglass rope that can withstand temperature up to 2000 degree Fahrenheit. The rope is secured in place using a gasketing cement and stove sealer. The lid is clamped in place until the gasket cement is dry. The next step is to build the cooling and the filtering system. To get all the tar and steam to condense back into their liquid form , we use a old oil heater radiator that act as a condensate catcher . The gas coming out of the reactor is connected to the radiator which gets most of the heat out of them. We build the filtration system using a 5 gallon metal bucket to get the gas as clean as possible. The output pipe is attached to the bottom of the bucket using a flange. The bucket is filled with a filter medium such as wood shavings or sawdust that will trap any sort of particulates and get more tar out of the gas. An old car blower from a toyota is attached to the top of this bucket to get that gas up to the point where it can burn. The blower motor is supported with a old 10 tin can that is then secured at the center of top of the bucket .Another soup can is soldered to the 10 can on the side to attach the output hose pipe. We don't want there to be enough oxygen to actually just burn all the material in there before we can extract the gases . So we are limiting this by using a one way gate valve . The one way valve is important to prevent flashbacks if too much oxygen is there inside the reactor . We load the reactor with wood sticks and put some starter down in there, which is just some cloth, some paper and a sprinkle some wood pellets on top just to give us something small to start off with. We pack the reactor leaving a spot in the center . The fans is turned on and we start the ignition process. https://www.youtube.com/watch?v=Bvl5XxVVjDM
- How to build a Multi Use Simple Homemade Wood Gas System from Scrap Materials that can be used as a Generator,Cooking Stove and LanternThis 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. https://www.youtube.com/watch?v=h9vuphZe8iU