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Helix Wind. Tensile fabric bamboo structures. Solar Tracking Platform. NOTE: If your solar tracker doesn't track the sun accurately, the solar cell may be receiving too much reflected light from low clouds, brightly painted walls, or other nearby surroundings.
Try painting the shade black underneath, and/or taping over unneeded portions of the solar cell. Cook Up Some Sol Food To use the tracker, bring it out into the sun, give it a few minutes to start tracking, and position your ingredient-filled cooker and reflector on top, aligning it to face along the central tracking angle (determined in Step 11). Then, just let the sun do the rest. With my solar tracker, the motor kicks in when about ½" of the PV cell comes into direct sun, which means about 75% of the cell stays in the shade. The Three Sensor Solar Tracker DIY Electronics Kit - Electronic Theory & Assembly. A Simple DIY Solar Tracker. Parallax Home. My VAWT (Vertical Axis Wind Turbine) Ceiling Fan Alternator 125+ volts. Homemade Vertical Axis Wind Turbine (VAWT) Helical Prototype. Vertical Wind Turbine Design - Steve Carle. Building the stator for my V.A.W.T. Vertical wind turbines Santiago, Dominican Republic.
The intensity of low speed wind turbine testing. Www.solstice.com.br/site/wp-content/uploads/2012/04/LatinAmericaWindPowerMarketsandStrategies2010-2025.pdf. The Mechanical Battery. In a world where everything from our automobiles to our underwear may soon run on electricity, more efficient portable power is a major concern.
After a century of stagnation, chemical and ultracapacitor batteries have recently made some strides forward, and more are on the horizon. But the most promising way of storing energy for the future might come from a more unlikely source, and one that far predates any battery: the flywheel. In principle, a flywheel is nothing more than a wheel on an axle which stores and regulates energy by spinning continuously. Ongoing research, however, suggests that humanity has yet to seize the true potential of the flywheel. When spun up to very high speeds, a flywheel becomes a reservoir for a massive amount of kinetic energy, which can be stored or drawn back out at will.
What’s more, it’s unaffected by extreme temperatures, boasts an efficiency of 85-95%, and has a lifespan measured in decades rather than years. The Gyrobus A magnetic bearing. Animals will now light up bulbs, and that’s no bull - Mumbai. The Centre for Technology Alternatives for Rural Areas and IIT-Mumbai have developed pedal or animal-driven energy generation prototypes to overcome power shortage in rural and urban areas The Centre for Technology Alternatives for Rural Areas (CTARA) and IIT-Mumbai have developed pedal or animal-driven energy generation prototypes to overcome power shortage in rural and urban areas and improve the efficiency of rural farmers to excel in small-scale industries.
Supported by the Mumbai-based Khadi and Village Industries Commission (KVIC), the CTARA has received Rs 8 lakh for designing prototypes such as a potter's wheel, a pedal-powered electricity generator (battery charger), a water pump, a wood-turning lathe and a paddy thresher. Narendra Shah, CTARA's head, said, "These prototypes offer promising substitutes in many villages across India, where electricity is still scarce. The prototypes were recently field-tested at the Yusuf Meherali Centre at Tara village in Raigad. Mirror making: The following information is based on my own, and other Club -members' experience in making, or helping make, test and finish about 50 or so mirrors over the last fiteen years.
No guarantee is given that this information will enable you to make a perfect mirror, but is intended simply to share our knowledge of the subject in order to help those who have no experience - and are making a mirror for the first time: If you have never made a mirror or a telescope before - one of the best things you can do is search for a local Astronomy Club. In many clubs you will find members who have already made telescopes - either from 'kits' which contain all the necessary parts - or 'from scratch' using the least expensive materials and methods.
Most telescope makers are quite proud of their efforts and very willing to pass on their experience and knowledge to others. Another (most essential, in my opinion) is the acquisition of a good BOOK on telescope making. Www.gearseds.com/files/solar_tracker_const_guide_rev4_all3units.pdf. Open Source Arduino Sun Tracking/Heliostat Program - CerebralMeltdown.com.
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UPDATE: The program / documentation on this page is horribly out of date. I’m currently working to re-write the “official” documentation, but until I finish you can find the most up to date stuff on this page on this site’s forum. On this page you will find a program for the Arduino which is capable of controlling various types of solar machines. For example, it can be applied to a dual* axis solar panel tracking system, a parabolic dish solar concentrator, or any other type of machine which points directly at the sun. This program is also able to control a heliostat with multiple targets programmed into it, each available at the flick of a switch. In fact, it is able to control all of these different types of solar machines simultaneously from just one single Arduino.
With this program, the position of the sun is actually calculated inside the Arduino (there is no trickery done with light sensors). Keep in mind that this program is still in its testing stages. Drive Systems from Rockwell Automation. Heliostats and Solar Tracking. This solar concentrator is an eight segment solid aluminum parabolic dish. The surface of the dish was washed and then adhesive mylar was applied in 3" wide strips. We started from the outside of each segment and worked toward the center. This method seemed to produce the least amount of material overlap. We tried applying the mylar several different ways but found that 3" wide strips were easiest to manage.
It was faster and less tedious to keep air bubbles from getting trapped under the reflective when applying strips as opposed to larger pie shaped sections. The weatherability of this mylar material is unknown. The Heliotrack mascot is pictured here for scale.