This projects goes over the build of waste oil powered free hot water heater for your home .This converts an old used domestic water heater to run on waste oil, engine oil or cooking oil. With as little as one liter of waste oil, this heater gives twice the heat output than a domestic electric powered water heater .As waste oil is free, this is more economical than running on gas or electric.
The setup of this waste oil heater is very simple and easy. We have a waste oil burner that is placed under the domestic water heater. The burner is connected to a blower from a car. This blower is powered by a 12V battery charger . The burner is also connected to a drip feed waste oil pipe through a small pipe.
The oil feed from a suspended tank, which gives it a gravity feed dribbles into the inlet pipe on the burner and it is simply blown into the burner by the force of the air from the blower. To control the oil flow ,we have a valve on the oil tank.
The cold water comes into through the inlet hose at the bottom of the tank . From there burner just fires the heat up through the center of the heater as it would normally if it was gas fired. The hot water comes out from a outlet hose at the top of the tank.
The waste oil burner is made out an old fire extinguisher bottle. The beauty of using extinguisher bottles is you don’t have to worry about any flammable gases in them, and the metal seems to be quite durable.
Make sure that the air and the fuel enter the bottle at a slight angle in order to create some swirling. This makes sure that the air and the fuel mix and will burn completely. And also that the bottle is kept hot so that the liquid oil will vaporize and the gas will burn.
The inlet pipe for the waste oil and the blower is positioned at 25 to 35% of the way up to the bottle. The inlet pipe has a small bend in it so as to promote swirling within the bottle. This is important in keeping the bottle hot and self sustaining. The burner has a clean burn with almost no smoke.
The output of the oil burner can be controlled by the amount of waste oil being dripped into the burner and by the amount of air blown into it. This oil gas burner is more powerful than a gas burner and the heat produced can overpower the heat sink threshold of the water heater . A vent line is installed on the system so that any build up pressure can be released. Apart from heating hot water , this set up can be used for space heating , pool heating or garage heating.
- DIY Video : How to build a Survival Water Distillation System for under $5 and turn Salt Water Into Fresh WaterThis project goes into the build a simple survival water distillation system to turn your salt water into drinkable fresh water. This setup can be made with little more than two glass bottles, some metal trays and some sand. So the primary components of this setup are two glass bottles, the wider the bottles are in diameter ,the better and a pair of metal trays. The first part of this process will be to prepare an area such that the two bottles can rest mouth to mouth. The important part is that one of them needs to be suspended over a heat source. This could be done over an open campfire, you just need to find a way to suspend the bottle above the flame either using rocks or logs. Cut a small notch on one side of the pan so that the neck of the bottles can sit a little lower in the pan. This is by no means necessary, but it will make the setup a little more secure. With the trays secured in place, both of them are now filled with sand. The sand will allow the trays to more efficiently act as heat sinks, one tray to cool one of the bottles and the other tray will be used to very evenly heat the other bottle so that it doesn't shatter from being heated too much on one side. The bottle is pressed firmly into the sand so that it gets good thermal contact and will be heated evenly. The second bottle is adjusted such that its mouth will meet up with the first and it is also pressed into the sand to obtain good thermal contact. Another reason that I'm using sand for this is because it makes it very easy to adjust the bottles angles and it is best to make the bottles meet up as evenly as possible so that there is not much room for water vapor to escape. We want it all to make it into this second bottle where it can condense as freshwater. As an additional measure to keep the cold half of the bottle cold, we wet the sand on this bottle with water or cover them with a wet cloth to allow evaporative cooling to take place. With such a large quantity of sand in this tray it does take a little while for it to reach the boiling point and get this process started. But once the sand has reached that point, it stays hot for a long time. So it is a pretty quick process as the water boils dry in this first bottle to simply refill it and you can continue on with the distillation process as long as you want. Rotate the bottle so that the top portion becomes hot from the steam, it is rotated into the cold sand below. And in that way the entire bottle maintains a cold temperature which causes the distillation to go much faster. https://www.youtube.com/watch?v=R_-wFiFdwAE
- How to Install a Complete Micro Hydro Alternative Free Power Generation System for your Home.This project goes over the details on how you can setup and install a 300W Off the grid Micro Hydro System for your home . The water source mentioned in this project have a flow rate of 15 - 30 gallons a minute and the drop between the source and the house is about 150 feet. The first step is to make an intake angled screen box for the system that helps in channeling the water from the source. The aluminum screen on the top blocks leaves, sticks and other debris to pass through into the box . The box is made of a 24 inch 2X10 ,2X4 and an 2X8 angled piece treated lumber. We add 3 one and quarter inch attachment points on the lower side of the box for the hdpe poly pipes. The box is secured using exterior screws on the outside and inner tubes on the seam to prevent leaks. The box is installed on the creek with help of couple of three and half inch concrete anchors and two boards are screwed on both the sides for support. The outlet poly pipes from the intake screen box goes to 55 gallon plastic barrel which acts as a silt catchment and also an air free source. The 3 outlet pipes are connected to the top of the barrel with the help of uniseal rubber gaskets. A 2 inch pipe is installed midway on the tank for the penstock. We also install an overflow pipe near the top of the tank to take the extra water out and a three inch cleanout pipe at the bottom . The cleanout pipe can be unscrewed to remove the silt and debris out. To take the water from the intake to the turbine, the penstock used here is a 100PSI 1100ft 2 inch poly pipe. A threaded adapter is glued to the outlet coming out of the barrel. It is then connected to a two inch full port shutoff ball valve followed by an another threaded adapter and a pipe. The penstock poly pipe is attached to this pipe using barb fittings with hose clamps. Next step is to install the pressure gauge and the surge tank to our penstock pipe. Water will come down through the poly pipe into another PVC pipe fitted with a pressure gauge, surge tank, two inch closing ball valve and a union to remove the turbine from the pipe. The surge tank is made of a standpipe that will prevent any water hammer affecting the pipes. The two inch poly pipe coming out from the barrel is connected to the two inch PVC surge tank and pressure gauge using regular . If the main shut off valve is suddenly closed, this tank will allow some of the surge to be absorbed. Next step is to build a housing for the micro hydro turbine. It is going to have a lid that opens up and a drain field pipe that goes out back to the creek. The housing for the turbine is made of three quarter inch plywood that is 2 X 2 foot wide and one foot tall. The turbine sits inside the hosing in the middle with the help of some 2x 4 scrap wood and a bucket lid piece. Then a 3 inch exit pipe comes out of here down through the middle of the housing .This drain pipe keeps the water from piling up under the turbine. The Micro Hydro Turgo Turbine is custom built based on the head pressure and the flow rate of the water source. It has three ball valves and four quarter inch jet nozzles coming out of them. The ball valves can be separately turned off when there is not enough water .The turbine is wired up to be three phase. The water coming out of the penstock hits jet nozzles that turns the Pelton wheel which is connected to 3 phase AC motor. To connect the turbine to our house, we use a 10/3 underground feeder wire. The wire is enclosed in a one inch conduit pipe. The proper way to install wire into a conduit is to get your conduit all glued together. And then you have a vacuum that pulls a string through. You tie your string to the wire and then pull the wire through the conduit. The wire goes into the house through a PVC conduit body. We install a junction box on the housing of the turbine to join the 3 phase turbine output wires to the 10/3 UG feeder wires coming from the house. Inside the house, we connect a rectifier to the three legs of the three phase coming from the turbine .This converts the AC generated into DC power. To generate useable power from this micro hydro system we need to install certain electrical devices in our houses. These include the MPPT Charge Controller, Grid Tie limiter Inverter, breaker box, disconnect switches and the batteries. These components are mounted on a 2 X 2 foot ,three inch plywood board. In case there is some excess heat for one of these electronics at some point, we cover the plywood board with a piece of sheet metal so that it will act as a heat sink. From the rectifier, the connection goes into a 25amp breaker box .The red wire goes into the breaker box and then further connects to positive of the charge controller. The negative white wire is directly connected to the negative of the charge controller. The five 12V AGM batteries are connected in series using four gauge cables. The positives from the batteries are connected to the charge controller and the inverter via DC switches .These switches allows us to isolate and disconnect the components individually. The negatives from the batteries are connected to the negatives of both charge controller and inverter respectively. The inverter is further connected to receptacle from where it goes straight to the main supply. https://www.youtube.com/playlist?list=PLTrfbWw_mKRL5Ae_x1Q4-1pOs0NJGwnzi
- How to build a Offgrid Homemade Emergency Washing Machine that use no electricity.Also works as a ComposterThis project goes over the detail on how you can take an old 55 gallon plastic drum and turn that into a hand crank washing machine and a compost tumbler. The frameworks has uprights on the edges, holding up the barrel all the way down. The upright on the sides are 3 foot long 2 x 4. The base that it sits is 3 foot 2 X 4.Long brace that holds the two sides together is three foot eight inches long. You can take apart the whole framework by unscrewing the side rails and store the barrel for using them in an emergency situation. The barrel sits on a one inch hardwood dowel which is installed through one inch hole at the top of the upright. These barrels have a line in the middle of them so it is pretty easy to find the center by measuring across the line and then dividing it in half. The hand crank is made of PVC pipe with some screws to the end side of the barrel. The hand crank gives you something to grab onto if it gets very heavy so you can pull it back up and really move it around. It has a one foot by one foot door on the front .We use couple of cheap cabinet hinges to hold the door up when unloading the clothes. It also has a little S hook latch that locks it into place. A hole down in the middle of the barrel is for drainage. A small plug and a cap acts as a drain. The plug is put through the hole from inside and sealed with the help of PVC glue. Next step is to add agitators to our barrel . As you rotate the barrel, the clothes will roll over those agitators back and forth and get the clothes moving a lot better and help clean it. We add 3 PVC pipes inside the barrel that act as the agitators. You put clothes in through the top and add enough water just to cover the clothes, add any biodegradable liquid detergent and close the lid. Start moving the hand crank back and forth. This will agitate the clothes. The agitators slosh those clothes around, get them grinding against each other and that is going to clean all the dirt out of them. After about 15 minutes of agitation, we pull the drainage plug off the bottom and drain the water or recycle it by collecting them underneath a bucket and pour it around your plants and trees. As long as we are using biodegradable soap/detergent, the soap and the dirt that is in your clothes isn't going to hurt the plants. We put the plug back on, and fill the barrel with some clean water and agitate for another 15 minutes. This is the rinse cycle. Pull the plug, drain that water or use it on your plants. This setup can be also used a tumbling composter. Compost can be made of just about anything that was once alive .You can use leaves, grass clippings, garden waste, kitchen waste, chicken manure or any other waste material. Just dump all in there and turn the compost in there using our handle every couple of days for 2 weeks. We want to keep the compost aerated so that the microbes and bacteria that break down the compost can utilize the oxygen efficiently and help in decomposition. After 2 to 3 weeks, you probably have some pretty decent compost that you can use on your garden. Also through the drain hole, we can collect the residue compost tea which is high in nutrients. You can use that compost tea for plants that really need a good dose of nitrogen.