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There are so many cool ways to generate... - Hashem Al-Ghaili. WATER FUEL IN GREECE... - Hydrogen On Demand. Pesquisadores criam peneira que transforma água do mar em água potável. Segundo uma pesquisa realizada pela Organização das Nações Unidas (ONU), aproximadamente 40% da população mundial sofre com a falta de água. Esse grave problema, além de aumentar consideravelmente a sede no mundo, traz graves consequências para economia e política das nações. Foi tentando solucionar esse problema que pesquisadores da Universidade de Manchester, no Reino Unido, desenvolveram uma peneira capaz de transformar água do mar em água potável. Os resultados da pesquisa foram publicados na revista científica Nature Nanotechnology e mostram que a peneira foi criada utilizando o óxido de grafeno (forma cristalina de carbono), substância altamente eficaz na dessalinização.

O grafeno é uma substância composta por uma camada fina de átomos de carbono ordenada em um tipo de treliça hexagonal. Suas propriedades fizeram dele um dos materiais mais favoráveis para futuras aplicações. What is Microhydro Power? What is Microhydro Power? Hydro-electricity is fundamentally the combination of water flow and vertical drop (commonly called “head”). Vertical drop creates pressure, and the continuous flow of water in a hydro system gives us an ongoing source of pressurized liquid energy. Pressurized, flowing water is a very dense resource, and hydro-electric systems convert a very large percentage of the available energy into electricity because the resource is captive in a pipe or flume.

People have been tapping the energy in flowing water for centuries, first for mechanical power, and, in the last hundred years, for electricity. A simple formula can give you a rough idea of how much capacity your stream might have. Within this formula is the understanding that systems with low vertical drop (head) need more flow to generate the same amount of energy. There are a wide range of small hydro turbine types to suit the head and flow of the site. Bomba Barsha es capaz de bombear 45.000 litros de agua al día sin combustible. Pratap Thapa ha diseñado una solución eficiente y barata que permite bombear agua sin depender del combustible. La Bomba Barsha, desarrollada por la empresa holandesa aQysta, de la cual Pratap es cofundador, es una rueda hidráulica que se coloca sobre una plataforma flotante en un río y que utiliza la energía cinética del agua para bombear el agua a través de mangueras.

Para su diseño se basaron en tecnologías desarrolladas en el antiguo Egipto. Su funcionamiento es sencillo, no utiliza ningún tipo de combustible ni electricidad para su funcionamiento, usa la energía cinética del caudal de agua para mover la rueda. Cada vez que la rueda gire recogerá un poco de agua y de aire, y la presión que ejerce ese aire es la que permitirá luego que el agua sea expulsada por las mangueras al campo. Es un producto adecuado para pequeños agricultores, con pocas hectáreas y que por su ubicación geográfica tienen poco acceso a electricidad o combustible. Algunas de sus características principales son: The innovators: US scientists harness the power of evaporating water | Business. A small Lego device on the shelf of professor Ozgur Sahin’s office at Columbia University could open up the possibility of another form of renewable energy, and one that is much cheaper than solar and wind. Sahin has used the simple gadget to prove that evaporating water can be used to generate power, which could eventually lead to energy being generated from still reservoirs.

At the centre of the research by Sahin and his team in New York are spores of common soil bacteria that expand, much like a muscle, when there is moisture in the atmosphere, and contract in drier conditions. In 2009, Sahin started to investigate whether there was a practical application to this expansion and contraction. By putting thin layers of the spores on plastic tapes and controlling the amount of moisture in the air, they expand and contract very quickly, creating movement on the tapes. By putting a large number of tapes together, they produce an energy force that can be captured. Estudantes criam parede que promete substituir ar condicionado. Fonte: Olhar Digital A hidrocerâmica é composta de bolhas de hidrogel que são capazes de reter até 400 vezes o seu volume em água. Aparelhos de refrigeração e climatização são comuns em muitas casas em empresas. Estes equipamentos, que ajudam a amenizar o desconforto das altas temperaturas, são responsáveis por grande parte do consumo de energia elétrica, além de contribuírem para a chamada “pegada de carbono”, que mede a quantidade de CO2 produzida diariamente por cada pessoa.

Pensando nisso, estudantes do Instituto de Arquitetura (IAAC), na Espanha, criaram um protótipo de parede que promete resfriar o ambiente sem a necessidade destes eletrodomésticos. Fonte: Domusweb O protótipo do material foi criado no Instituto de Arquitetura (IAAC), na Espanha. O material recebeu o nome de hydroceramics (hidrocerâmica) e é composto de bolhas de hidrogel que são capazes de reter até 400 vezes o seu volume em água. Confira no vídeo o conceito do novo produto: Nava: A Revolutionary Filtering Water Bottle - GADGETS.feedbox.info. Sistema feito por garota de 17 anos purifica água e gera energia. The Latest Clean Energy Cocktail: Bacteria And Fungus.

By Jeff Spross "The Latest Clean Energy Cocktail: Bacteria And Fungus" By throwing together a common fungus and a common bacterium, researchers are producing isobutanol — a biofuel that gallon-for-gallon delivers 82 percent of gasoline’s heat energy. The more common ethanol, by contrast, only gets 67 percent of gasoline’s energy, and does more damage to pipelines and engines. And the University of Michigan research team did it using stalks and leaves from corn plants as the raw material.

The fungus in question was Trichoderma reesei, which breaks down the plant materials into sugars. The University of Michigan team also got the fungi and bacteria to co-exist peacefully in the same culture and bioreactor. The big advantage of a cellulosic biofuel like this is twofold. Two, by driving up demand for food crops, traditional biofuels encourage individuals and countries to clear ever more natural land for agriculture. And it’s not just fossil fuels that could be replaced, either. Central hidroeléctrica casera y económica. Navegando me encontré con este curioso diseño de turbina hidráulica hecha por muy bajo costo y de forma muy sencilla.

Sam Redfield es el responsable de este brillante diseño donde con un cubo de plástico de unos 20l podría servir uno de pintura por ejemplo, y unas tuberías de PVC junto con un alternador de imanes permanentes como generador eléctrico obtiene este pequeña fuente de energía limpia. Turbina funcionando en Guatemala. Al generador se le instala un regulador de voltaje, una batería de automóvil y un inversor.

La batería almacena la energía, el regulador controla el voltaje e impide la sobrecarga de la batería y el inversor transforma la corriente directa en alterna. La turbina construida con codos de PVC Detalle del interior donde se ve la correcta disposición para que funcione el sistema. Alternador colocado en su sitio. Este tipo de sistemas hidroeléctricos que generan menos de 1 kW (1000 vatios) son conocidos como pico-hydro (en inglés) o pico-hidroenergía.

New device generates electricity from condensation. MIT researchers have found a way to generate small amounts of electricity from condensation, by having electrically-charged droplets jump between superhydrophobic (water-repelling) and hydrophilic (water-attracting) metal plates. The advance could be especially useful in remote areas or developing countries, not least because it produces clean water as a side product. While pulling electricity out of thin air is a physical impossibility, producing it from water droplets in the atmosphere is very much within our reach. We have known for years that droplets are capable of carrying an electric charge, so properly harnessing this phenomenon under controlled conditions could lead to an exciting new source of renewable energy. Now, a team led by Nenad Miljkovic at MIT seem to have done just that, by finding a way to generate electricity simply by harnessing the humidity in the air.

The researchers have used this phenomenon to generate electricity. Source: MIT Share. HEB Home. Wave Energy | Tidal Energy | BioPower Systems. The microhydro plant. My little paradise has a stream that provides enough water flow and head to run a small turbine, to provide electricity to my home. While writing this, the microhydro plant is being implemented, and here are some photos of the process. Since I usually like to start at the end, the first thing I built is the controller: It is an implementation of Jan Portegijs' "Humming Bird", with some changes and adaptations.

The largest cost of the plant, by far, is in the piping for the rather long penstock. When the purchase was made and the truck arrived, we unloaded the pipes at different places, to get them as close to the installation area as possible. Here are the main stacks: A smaller number of pipes were stored closer to the turbine site. Only for the last part of the run, where the pressure exceeds 2 bar, I will use blue class 4 PVC pipe. To change from the low slope run of the white pipe to the much steeper run of the blue one, a change of direction is required. News! And this is the result. Shower of the Future | by ORBITAL SYSTEMS.

Pump Water Without Electricity - energy of flowing water | Self-Sufficiency. (Before It's News) A water wheel uses the energy of flowing water to move the water through coiled pipe and as it spins it continues adding water through the coils. Depending upon where you set the output pipes you can move water from a creek to your field without electricity. This is a Wirtz water pump. With each revolution of the spiral, the scoop collects one-half the volume of the outer coil. Alternative Energy Battery Type 101 Make a Biogas Generator to Produce Your Own Natural Gas DIY – 10,000 Watt Generator Running On Fumes Only! Wind Power for your House, Home, Retreat 600 Watt Water Powered Generator Made from an Old Washing Machine DIY Water Filter Lost in the Wilderness: How to Find Water The vulnerability of America’s power grid system – BLACKOUT USA (Judge Jeanine Pirro-VIDEO) www.diyreport.com.