This project goes over the build of an DIY Atmospheric Water Generator that distills water from air. This unit is made of aluminum and copper components so it is water safe and is drinkable. The water essentially is just pure distilled water just as clean as if it is distilled from a stovetop distiller. This setup works well in hot humid weather. Also acts a dehumidifier.
The materials you need to build this project are quarter inch copper tubing, soup can, half inch PVC pipe, 12V DC aquarium pump, aluminum foil, clear vinyl tubing, aluminum tray for collecting the distilled water ,small styrofoam cooler box. Cold Water is pumped through two sets of coiled copper tubes. The coil becomes freezing cold and starts to condensate . Dew gets collected on the coil and is captured by a drip pan which is placed under the coil.
The copper tubes are wrapped around a soup can to get the coiled shape. The clear PVC hose tube is clamped onto the coil and then connected to a small 12V DC aquarium water pump which is powered by a battery or solar panel.
We take two half inch PVC pipes , connect them together with two elbows . Wrap the PVC pipes with some aluminum foil and place the pipes above an aluminum or glass tray.
The water pump is then submerged in a chest box or bucket containing ice cold water. The pump is started and water coming out of the box cooler is sent through the copper coil where it will start the condensation process. Here the water is chilled to below its dew point. If the water is warm, it wont cool the copper coil enough for the condensation to occur.
The colder the water and the more humid it is out , the faster the process of collecting distilled water. To improve the efficiency , you could squeeze the copper coils together . The more the coils, the more the water you can extract from air .
- How to Generate Alternative Offgrid Power by building a Homemade Waterwheel Hydro Electric SystemThis 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 2x4 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 2x4 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. https://www.youtube.com/playlist?list=PLDda5L4aJUB-IuU3SWstKewFvzfv3wJGI
- How to Generate Emergency Off Grid Power using a Car Alternator and an exercise bike.This project goes into the build of a DIY pedal powered generator out of an old car alternator and a bike. This generator is useful for powering your devices and gadgets in case of an emergency or grid down scenario. The materials you need to build this generator are bike, MDF for base plinth, magnetic trainer stand for bike, Alternator, drive belt, 12V battery, cable connectors, 12V socket, multimeter, screwdriver, insulation tape. The rear end the bike and rest of the components are mounted on a one inch thick MDF board. This has a good amount of stability that keeps it away from moving around. We add an extension bit on the front. The extra height there just compensates for the fact that the back wheel is in a stand. The alternator is mounted nice and secure onto the base using brackets. Bolts connect the alternator to the brackets and screw the brackets down to the base. Once you are pedaling, and you have got electrical load in the circuit, there is quite a bit of force pulling the alternator forwards. So it does need to be really securely bolted down. Make sure that the wheel of the bike is in line with the alternator pulley .With any wheel, we have rim bed and the rim walls. Here what we need is a drive belt that fits purely in the rim bed. Make sure you measure the internal width of the rim bed . Also measure the width and depth of the alternator pulley grooves and get a belt that fits accordingly . Also make sure you have got a belt that is long enough because a typical drive belt that is used in a car is not going to be long enough because it is only made to go around a pulley on the engine. The car alternator used here has three wires coming out of them .It has a main power thick output wire, it supplies main power to the devices. Then there is two small cables, one for voltage sensing and the other for field coil ignition. The voltage sensing wire goes straight to the 12V lead acid battery in our case. To get the alternator generating power you first need to apply a small voltage through the field coil and that is because an alternator doesn't have any permanent magnets in it. The way that any generating device works is moving either electrical charges through a stationary magnetic field or moving a magnetic field around a charge. So the field coil inside the alternator is attached to the field coil ignition cable, and putting a voltage generates the magnetic field, which enables the alternator to generate power when you turn the shaft via the drive belt. You don't need to keep applying a voltage to it as it's running, because it will generate its own power. The negative from the alternator is connected to the negative of the battery. The positive connection from the alternator is connected to the positive of the battery. The third connection coming from the alternator is the field coil activator .This is connected to a switch .The connection goes back to the alternator to active the field coil. A standard cigarette lighter socket is connected to the battery terminals. It will draw power off the battery first, and once you start charging power, because the alternator is connected into that, it is going to draw it from the alternator, and the alternator will simultaneously power whatever is connected into that socket, and recharge the battery. The alternator used here has voltage tolerance of 11 to 14V . A Modular splitter is connected to the cig power socket to charge multiple devices. Make sure that the plug comes with a fuse or whatever you plug in needs to be rated to the right power for what you are going to charge . To run alternating current devices, we connect a 150W Power inverter to the circuit. The alternator actually generate alternating current. But its got a rectification circuitry built into it, which changes it to DC. The inverter changes the the DC output from the alternator to AC. Finally ,we add a master switch that switches the battery on.The Power switch stops any drain from the battery through the field coil . The switch also connects the multi sockets that charges various devices. It isolates the battery from the circuit. It isolates the alternator from the circuit, and it isolates the remote switch and the battery from the field coil completely. The AC generating device like an alternator have a minimum speed of operation in which they are stable. So do check for your alternator, what is the recommended minimum speed for it. If you spend it below that speed, what happens is because of the way it works, you get a periodically varying force which acts as a resistance to your pedaling. https://www.youtube.com/watch?v=_Hx1ptv6RKI
- DIY Video :How to build a Simple and Efficient Copper Coil Burner Stove from start to finish.Great in a emergency/disaster or while out campingThis project goes over the build of an simple and efficient copper coil tiny alcohol burner jet stove. The materials you need to make this stove are canning jar, small copper tubing, JB weld to seal up the from inside and outside , pipe to wrap the coil, couple of drill bits, a wick material, sand and Isopropyl Rubbing Alcohol as a the fuel. Fill the copper tubing with sand all the way up. Seal both ends of the tube with a cloth or a cap. With the help of a vice ,we bend the tubing around the pipe into a loop. Flatten the sides of the coil keeping the sides together. Empty the sand out of the copper coil and run water through it to get everything out. This is done so that the inside is completely open for the air and the gas to build up and burn in there. Cut a vent hole down the center of the looped coil using the smallest drill bit. Mark the canning glass jar against the copper coil so that we can cut off the extra coil legs so that the coil fits inside the jar approximately three quarters way down. Next step is to make holes for the lid of the jar . Place the coil on top of the lid and make two spots for the holes. We use a drill bit ,same size as the coil to drill two holes. The coil is placed through the two holes of the lid and sealed on both the top and bottom side using JB Weld. Allow the glue to set for an hour. Take your wick cloth material ,insert and twist them through both the holes of the coil all the way up to the top. Pour some Isopropyl Rubbing Alcohol onto the jar , place the lid with the coil on the top and tightly close the jar with the cap. Wipe the sides of the coil with rubbing alcohol. To prime the stove for its first burn , start by heating the coil using a propane torch first. The heating of the coil gets the gas going. Heat until the flame starts to appear. Burn for four to five minutes to steady the flame. https://www.youtube.com/watch?v=HFrWw5dgliQ