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Ecoexperimentos: Calentador solar gratis con botellas PET

Ecoexperimentos: Calentador solar gratis con botellas PET
Hace ocho años José Alano, un mécanico brasileño retirado, tuvo la inspiración de recoger botellas de plástico (PET) y cartones de leche usados para desarrollar un sistema de calentamiento de agua por energía solar simple, barato y que pudiera construir cualquier persona.The Ecologist le dedica un estupendo artículo contando su historia:…viendo que en su pequeño pueblo de Tubarão no existía ninguna infraestructura para reciclar los envases y sintiéndose incapaces de tirar todos esos envases a la basura, Alano y su mujer pronto se encontraron con una habitación llena de botellas y cartones de leche vacíos. [...] Haciendo uso de su ingenio y experiencia con captadores solares, él y su esposa construyeron una versión alternativa utilizando 100 botellas PET y 100 cartones de leche usados. Lo que más impresiona es oir cómo Alano se describe a sí mismo:“No me considero un inventor, sino un simple ciudadano que trata de encontrar soluciones a los problemas.” Related:  Solar Energy

Solar Thermal – An Old Concept for Today’s World | GreenBuildTVGreenBuildTV Some people think the concept of solar thermal is radically new. Truth is – people have been using the power of the sun for decades to provide hot water. But catching the sun’s rays hasn’t always been an easy task. Throughout the years, many creative solutions have been devised to help generate solar-heated water. Early on, people used a black-painted water tank, mounted on a roof, to gather the sun’s rays. A few of the more common solar thermal collectors today include: the flat plate, evacuated tube, and parabolic trough. Flat Plate Collectors Developed and in use since the 1950′s, flat plate collectors remain the most common type of solar thermal collector. Plates are usually constructed of copper or aluminum, though some polymers can also be used, especially in climates susceptible to freezing. Evacuated Tube Collectors Evacuated tube collectors have been in use for the last thirty years. Parabolic Trough Which system is right for me?

7 Solar Water Heating System Designs by Michael Hackleman (Rob Harlan is a general and solar contractor with 25 years of experience with solar water heating systems in Mendocino County, California. Rob primarily designs and installs photovoltaic systems today.) MH: Rob, will you give a brief history of the last 30 years of solar-water heating system design and implementation? Rob: Solar-water heating systems got a real boost in the 1970s when tax credits were offered by state and federal programs to help folks make the investment. These systems were intended primarily for domestic hot water, i.e., showers, dishwashing, cooking, and clotheswashing. They were also popular for heating the water in pools and hot tubs. MH: As I recall, a lot of manufacturers also disappeared when the tax credits went away. Rob: Some designs were indeed flawed—poorly implemented, overly complex, or incorporating untested ideas. Rob: And—on active systems, a controller turns a pump on and off as solar heat is available. Rob: Freezing protection. Rob: True. 1. 2. 3.

15kw Solar Power Plant This is a big stack of mirrors, but look how simply the heat of the sun redirected can generate enough heat to power a 15kw Steam powered generator! Love this! Watch This Video: Other Great Stories From Not too bright – The 12 volt Tiny House Option One aspect of construction that I neglected when building Tiny House Ontario was what I would do about electricity. To tell you the truth electricity scares me because it carries the power of fire. Even so, I thought about it enough to know that I did not want to be on grid, and that I wanted to do it myself. After living there, two seasonal years, I knew that my need for electricity was very limited. On a whim, because there was a fantastic sale, I decided on a small solar panel from Canadian Tire. After my success, I decided that I would not invert my power when it entered the house because the power that is lost to the inverter is quite something. It was not easy for me to figure out how to get this, but it turns out that I got all of these items at a marine supply store. It was not a fast job to put in the wiring. As far as cost goes, all the materials, including fixtures, cost roughly $1200 in Canadian, plus 15% tax which is less than the cost of one Hydro pole.

Solar Math Calculs solaires pour votre ville. Ce tableau va vous donner la position du soleil en fonction de votre latitude et de votre longitude. Quelques villes sont sélectionnées mais vous pouvez aussi rentrer vos coordonnées (degrés et centièmes) directement en choississant dans le petit menu déroulant en haut à droite "Ne pas choisir de ville". Pour mesurer la durée pendant laquelle le soleil brille (insolation ou durée d'ensoleillement) on utilise maintenant un héliographe automatique dans lequel un oeil électronique (cellule visible dans la partie transparente) repère le soleil en effectuant une rotation d'un tour par minute.

Is this the Breakthrough that Finally Kills 'Big Oil' and Brings Solar Power to the World? The days of bulky, expensive solar panels that were heavy and required harsh chemicals to produce and a lot of labor to install may be coming to an end. Scientists in Australia have been able to produce the largest ever printed solar cells using a newly developed solar cell printer. Yes, they are printing solar cells. The cells are flexible, cheap, and made from organic plastics and materials. According to scientist Dr Scott Watkins, printing cells on such a large scale opens up a huge range of possibilities for pilot applications: “There are so many things we can do with cells this size[…]We can set them into advertising signage, powering lights and other interactive elements. We can even embed them into laptop cases to provide backup power for the machine inside.” Dr. “Eventually we see these being laminated to windows that line skyscrapers. Image: VICOSC’s new solar cell printer installed at CSIRO. “The consortium is currently only purchasing materials on a research scale. $1 per watt?

Mobile Sun Tracking Solar Power Plant A recent storm with horrific winds took down our electrical power. The outage was widespread, straining the power company to get everyone back online. We were without power for almost 3 days - no heating, no hot water, no refrigeration, no range, no microwave, no lighting. No TV, no WiFi, and no hot coffee in the morning. My first thought was to buy a gas-powered generator. Features Sun Tracking Sensor Renogy 50W Monocrystalline Solar Panel Renogy 30A PWM Charge Controller 85AH Deep Cycle Gel Batteries 2000W DC-AC Power Inverter With 3 AC Outlets Bussmann 150A Resettable Circuit Breaker Servo Motor for Azimuth Axis Linear Actuator for Elevation Axis Arduino UNO Controller Adafruit Motor Shield v2 Backlit LCD Voltage Meter Adjustable LED Bar Work Light 12VDC Switched Outlet With 15A Resettable Circuit Breaker USB Charging Outlet Durable Battery Box With Carrying Handles Schematic The sun-tracking sensor is made from a cheap 6-LED flashlight. Wiring Video

A fully transparent solar cell that could make every window and screen a power source Healthy News and Information by KRIS GUNNARS I love it when I learn new things from the comments people leave on my site. About two weeks ago, I wrote an article about coconut oil – an awesome tropical oil with many health benefits. A few people commented that they use coconut oil for something called Oil Pulling – which is kind of like using an oil as mouthwash. Apparently, there are quite a few studies that support this process and a lot of people swear by it. It is claimed to whiten your teeth, make your breath fresher and lead to massive improvements in oral health. What is Oil Pulling and How Does it Work? Oil pulling involves swishing oil around the mouth and has been used for thousands of years as an Indian folk remedy. There are actually thousands of different types of bacteria in the mouth. Having some plaque on your teeth is normal, but if it gets out of hand it can cause all sorts of problems, including bad breath, yellow teeth, gum inflammation, gingivitis and cavities. I Personally Prefer Coconut Oil 1.