entertainment Funny Looking Tower Generates 600% More Electrical Energy Than Traditional Wind Turbines The Sheerwind wind turbine promises to produce 6 times the electrical power than traditional wind turbines. This funny looking wind tower acts like a funnel, directing the wind from any angle, down through a tube to a ground based turbine generator. The funneling of the wind through a narrow passage effectively creates a “jet effect” increasing the velocity of the wind, while lowering the pressure. This is called the Venturi Effect. This speeds up the wind turbine mounted inside the narrowest portion and generates electricity. As such it can capture and generate electricity at a much lower wind speed than current wind power technologies. The idea is so simple, so elegant, and promises to produce so much more energy at lower cost and more efficiently, that it might just be the answer to many problems with current wind turbine technology. Imagine a smaller HOME version on your off grid cabin. Conventional wind turbines use massive turbine generator systems mounted on top of a tower.
Uk sites A Material That Could Make Solar Power “Dirt Cheap” A new type of solar cell, made from a material that is dramatically cheaper to obtain and use than silicon, could generate as much power as today’s commodity solar cells. Although the potential of the material is just starting to be understood, it has caught the attention of the world’s leading solar researchers, and several companies are already working to commercialize it. Researchers developing the technology say that it could lead to solar panels that cost just 10 to 20 cents per watt. Solar panels now typically cost about 75 cents a watt, and the U.S. In the past, solar researchers have been divided into two camps in their pursuit of cheaper solar power. The new material may make it possible to get the best of both worlds—solar cells that are highly efficient but also cheap to make. One of the world’s top solar researchers, Martin Green of the University of New South Wales, Australia, says the rapid progress has been surprising. “Between 2009 and 2012 there was only one paper.
Slic3r - G-code generator for 3D printers World record solar cell with 44.7% efficiency The Fraunhofer Institute for Solar Energy Systems ISE, Soitec, CEA-Leti and the Helmholtz Center Berlin jointly announced today having achieved a new world record for the conversion of sunlight into electricity using a new solar cell structure with four solar subcells. Surpassing competition after only over three years of research, and entering the roadmap at world class level, a new record efficiency of 44.7% was measured at a concentration of 297 suns. This indicates that 44.7% of the solar spectrum's energy, from ultraviolet through to the infrared, is converted into electrical energy. This is a major step towards reducing further the costs of solar electricity and continues to pave the way to the 50% efficiency roadmap. Back in May 2013, the German-French team of Fraunhofer ISE, Soitec, CEA-Leti and the Helmholtz Center Berlin had already announced a solar cell with 43.6% efficiency.
carlosgs/Cyclone-PCB-Factory How it Works | Sheerwind Watch this: Watch 3 actual turbines in action! SheerWind’s INVELOX Wind Delivery is simply a better way to harvest wind energy. Wind is captured at the top of the funnel shaped INVELOX system. This system of capturing, concentrating, accelerating, and harvesting wind power in a funnel is a patented system we call INVELOX™ (for INcreased VELocity). SheerWind’s mission is to provide sustainable, affordable, electrical energy to anyone, anywhere. INVELOX is scalable, equally suitable for use in major wind farms or micro-generation settings. inShare213
Cyclone PCB Factory Cyclone PCB Factory Documentation Cyclone PCB Factory v2.1 Release status: working Introduction The Cyclone PCB Factory is a 3D-printable CNC Mill released in May 2013. A summary on the Cyclone development can be found in this article. The new Cyclone v2.0 has been released! Video summary of Cyclone, as of Summer 2013: Pictures Milling plexiglass by Martin Zabojnik (video) Dimensions The external dimensions of the Cyclone PCB Factory are approximately 25x30x40 cm (intended footprint was a DIN A4 paper sheet). The machine is optimized to work with 100x160 PCB boards and has ~3cm of usable Z range. Main improvements The following is a list of the main improvements that this project is developing: Rep-Rap alike, anyone can print the parts and build it Simple implementation of Z height probing to allow high precision milling (see the Software credits for details) Development The development of the Cyclone PCB Factory is hosted on github: Mail list / Forum
How I built an electricity producing wind turbine Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size. I found a great piece of property. The problem is, it's so remote that there is no electric service available. One thing I noticed right away about my property is that most of the time, the wind is blowing. Let me state up front that I probably won't be able to help you out much if you decide to build your own wind turbine. Since no one seems to be reading the FAQ, I will answer the No. 1 question I get many, many times a day right here up front. Update: Here is a video of the wind turbine in operation. Update: Here is a video of me assembling and setting up the wind turbine on my remote off-grid property. I started the process of designing my wind turbine by Googling for information on home-built wind turbines. I reduced the project to just five little systems. for only $26. . Finally!
RAMPS 1.4 Release status: Working In RAMPS 1.4, the resistors and capacitors are now surface mount to fit more passive components. This does add another set of steps to assembly, but we stuck with larger sizes to make it fairly painless. Reference board orientation is component side up, power inputs to the left. Once you start putting electricity into your RepRap - even at just 12 volts - you have to take basic, common sense precautions to avoid fires. A "thermals" design flaw has been noted in the RAMPS 1.4 Eagle CAD files. This image is also in error (it isn't: it's a photograph of an existing production RAMPS 1.4 board), the left two unpopulated pins on the image are for the always on fan and use very little current. The problem may be fixed in the Eagle CAD files - for a future version of RAMPS only - by disabling "thermals" on the GND, +12V and the +12V2 Copper pour. Other production boards found in the wild Another production 1.4 board, also sourced from China. Component Soldering Required Tools