This project goes into the build a simple Survival water purifier that can turn salt water /sea water into fresh drinkable water .This purifier is portable, easy to make and is very inexpensive. It works by the principle of desalination .When sea water/ salt water is heated to its boiling point, the water turns into steam which leaves the salt behind. Condensing the steam back into water ,it is purified.
The materials you need to build this desalination unit are a simple non insulated stainless steel bottle with a steel lid , copper tubing , stove or heating source, bottle for collecting the condensed water, soldering unit, right angle compression fiting. The condenser of this desalination unit is made from one quarter inch copper tubing.
Remove the lid and the gasket from the bottle . A hole is drilled using a drill press at the top of the lid to accommodate the quarter inch copper tubing . Before soldering the copper tubing , clean the surface of both copper and the stainless steel lid with the help of a sandpaper. The copper tubing is pushed through the hole just enough to stick half an inch from both side. It is then soldered securely in place. Once this is completed , the silicon gasket is then re-installed in the lid and lid is screwed back on to the bottle.
A right angle compression fitting is pressed into the lid at the copper tubing opening . The extension tube at the other end of the compression fitting is removed and replaced with a rubber gasket for better seal for the lock nut.
The copper coil for the re-condensing the steam when the water is boiling is made by wrapping the copper tube up tightly against the stainless bottle . Eight or nine turns of the tubing is ideal. The ends of the coil are bend outwards so that when one end is pressed into the fitting on the bottle, the other side will be sticking straight out.
The salt or sea water is added to the bottle and reattached to the lid which is hanging over a heat source such as a wood stove or camp fire. The other end of the coil is placed near a collection container to collect the distilled water.
To produce more condensed water out of the copper tubing ,we need to cool it down. Otherwise the production of steam will outweigh the production of the condensed water. To cool the copper tubing , wet put a wet piece of cloth soaked in cold water and wrap it around the coil or dip the whole bottom half of the copper coil into a vessel filled with cold water.
- How to build a Homemade Super Efficient Portable Solar GeneratorThis project goes over the build of a Homemade medium sized and moderately priced portable solar power generator that is designed to be powered by 100W Polycrystalline Solar Panel. The case for this portable system is from Plano sportsman, quite sturdy and rugged that a typical container. Costs about $25 . It has a nice top with handles that latch it down. On the back of the system, we have two pin SAE port that allows the energy from the solar panel to come into the system. It directly goes into a 30A solar charge controller. The negative from the charge controller is connected to the negative of the batteries. The positive is connected via a switch to positive of the battery. The negatives and positives of the batteries are connected to each other. The negative of the inverter is connected to the negative of the battery. The positive is connected to a battery switch off circuit that is further connected to battery positive through a switch. The USB ports,12V DC outlet, DC meter all are connected to the respective terminals of the batteries. To connect to the AC outlet from the inverter, we take a 3 wire extension cord which can be bought from the local hardware store . The negative end of this wire is connected to the negative of the shallow box AC outlet and the positive is connected via an 15A inline fuse and a current transformer. The ammeter is connected to current transformer and the 110V outlet. On the front of the system, we have the accessory ports including a 12V power indicator , 2 USB ports with 5V one amp and 5V 2.1amp, 12V outlet, AC Voltmeter and ammeter. Amp meter tells how many amps we drawing out of the system using various appliances. This can help us understand how much solar power is being generated during the day versus solar power being utilized from the system. The whole system is turned on a 12V master key switch that activates inverter, case temperature sensor, cooling fans , AC power outlets. We install a key and power up the AC side of the system. There is two fans on the back that push air in and draw air out of the case to keep the AC DC inverter cool. Inside we have a deck tray made from backboard material available at Home Depot. We have installed a 400W pure sine wave inverter, a 30A MPPT solar charge controller and a 12V emergency LED light on them, also has four vents that allow air to circulate through the top portion of the case as well as through the bottom. The vents keep the batteries cool and allow any off-gas build up from the batteries to pass it through. Here the inverter has a built in automatic shutdown feature that ensures that the batteries are not discharged to a significant level. So it is safely connected to the batteries. Once the deck tray is taken apart, we have 2 55AH AGM sealed batteries that are wired in parallel to a 2 AWG cables to transfer the power back and forth between the batteries. These type of batteries require less maintenance. Also installed a wooden frame with exact dimension of inside of the case to keep the batteries in place and keep them from moving around. To protect all the components we have fuses ranging from ANL 50amp fuses between the inverter and the battery , inline 30amp fuse between the solar charge controller and the batteries. To attach jumper cables we have an option for external heavy duty battery terminals. To connect to an AC float charger we have added a SAE 2 pin port. https://www.youtube.com/watch?v=offgcMwuTGw&list=PLE0oc91st1znXrnczHySumH34-UJP3N2S
- How to build a simple Homemade PVC Off grid River Pump to pump water from a river or creekThis project goes over the build of a river pump that can be used to pump water from a nearby river or creek anywhere you want without any external power.It works off of a circular tube, gulping air and water as it rotates. It works by harnessing the flow of the river and creating air pressure to push the water further.It pushes water out from the river and up through your hose system, which you can direct where needed. To use a river pump, all you need is a nearby river or creek that has flowing water and a location that is deep enough to support your river pump. Here are the parts needed for this water pump: A 3 inch to 4inch reducer A 4 inch to 6 inch reducer 40 foot ,3/8 inch tubing 3 inch socket to thread /cap Garden hose adapter Quick release couplings Six,four,two inch pipes Take your angle grinder and cut them to four pieces.Connect the pieces together using a PVC cement solvent and make it into a cone that steps down as it goes. A window screen is used as a shield on the back.So this design is supposed to be rather streamlined in order to keep debris and stuff from getting caught as the pump works The cap at the end of the cone is attached to the swivel piece. It needs to be able to swivel freely on top of this. The hose tightens into this metal swivel piece and gets locked down. Next is building fan blades for the front of this pump to spin it.Cut the PVC into 4 equal blades that is 8 inches tall. Bolt the swivel piece along with the blade we have just cut. Water comes flowing in and hits the blades that is attached to the rotating swivel, makes it move and rotate and then hits the next one in line. The end piece is attached to the the PVC cone that we made earlier.Next step is getting our 40 foot hose tubing to get inside the pipe and attach to the swivel end. Next step is wrapping the 40 foot hose around the pump .We need to wrap the hose in such a way once the water hits the swivel end,the hose has got to pick up water. The Garden Hose is connected to the swivel end of the pump.Place the system along the direction the flow of the river or creek.
- How to convert an Old Ceiling Fan Motor into a 70W Efficient Single Phase Alternator GeneratorThis project goes over the conversion of an old ceiling fan motor into an single phase alternator .You can't take your standard AC electric motor and spin it and get an electrical current out of it unless you modify it. The ceiling fan motor used here will produce about 70 volts at one amp which is roughly 70 watts. Through a bridge rectifier we can get about 70 watts of power out of it. We start by pulling the cover of the fan. Inside we have a squirrel cage rotor in the middle and 6 coil windings around it. The coil windings are placed in clockwise and anti-clock wise directions inside the stator. Next we remove the circular rotor from the threaded shaft which is attached to it with help of a vice. We attach the shaft with the rotor through it within a vice. With the help of an extra piece of pipe to give leverage, we press them against the rotor and push it away from the rod and pop it off. We are replacing the rotor that we have detached from the shaft with a two inch hex steel bar . It has six sides that matches with the six coils from the stator. With the help of one eighth inch drill bit we cut a hole in the center of our hex bar. We put the hex bar through the shaft and fit them snugly around the threaded area. We take six one half inch neodymium or rare earth magnets and place them along the the 6 sides of the hex bar. We place them in such a manner that the poles of the magnets are opposing each other. For permanent usage, wrap this with a little bit of tape or glue so that they are held in place securely. We place our modified rotor in the middle of the stator and align them such that they fit in tightly. The outer screen is bolted back onto the motor. We can also add second set of magnets to increase the magnetic field of the rotor .This will also bring it closer to the coils on the outside and increase the overall voltage. To convert the alternating current generated by our ceiling fan alternator to direct current, we use a bridge rectifier. It has 4 poles, 2 for connecting our alternating current, the other plus and negative for DC power. https://www.youtube.com/watch?v=k-4IbLOZwnA