Ento : Ento. Aquamarine Power - Aquamarine Power releases performance data and details of planned improvements to Oyster 800. Aquamarine Power releases performance data and details of planned improvements to Oyster 800 4 Jul 13 Aquamarine Power has announced details of planned improvements to the Oyster 800 wave energy device, together with some recent production figures.
The improvements, known as the Oyster 800 Product Improvement Programme, involve shutting down the Oyster 800 - which has been operating since February at the European Marine Energy Centre in Orkney. During the rest of the summer work will take place in five specific areas on the machine - with the overall goals of improving performance, reliability and availability of the nearshore wave technology. "Since the Oyster 800 flap was raised from the seabed on February 14 this year, we have learned a tremendous amount about how Oyster operates in real sea conditions," says Aquamarine Power Chief Executive Officer Martin McAdam.
"This year the Oyster 800 has been operational in significant wave heights of 5.3 metres* and peak waves of 9 metres. 1. 2. Inicio. L'Uritonnoir. L'Uritonnoir urinal by Faltazi. This outdoor urinal by French design studio Faltazi slots into a straw bale to recycle pee from festivalgoers into compost.
L'Uritonnoir is a cross between a urinal ("urinoir" in French) and a funnel ("entonnoir") and was designed by Faltazi as a tidy and eco-friendly method of outdoor sanitation. To set up a urinal, L'Uritonnoir is pushed into the side of a straw bale and fixed in a place by looping a strap through its top holes. As the bale collects liquid, nitrogen from urine combines with carbon in the straw and starts a process of decomposition. After use, the bale can either be taken to a local composting facility or left on the spot for six to 12 months to become compost, before being scattered on the soil or used as a planter.
The urinal comes in two versions – the flat-pack polypropylene DIY model and the stainless steel Deluxe model. Production starts in June and the Uritonnoir will debut at French heavy metal festival Hellfest that month. Uritonnoir, french noun. Two models: Vortex engine. The concept of a vortex engine or atmospheric vortex engine (AVE), independently proposed by Norman Louat and Louis M. Michaud, aims to replace large physical chimneys with a vortex of air created by a shorter, less-expensive structure. Michaud's patent claims that the main application is that the air flow through the louvers at the base will drive low-speed air turbines (21), generating twenty percent additional electric power from the heat normally wasted by conventional power plants. That is, the vortex engine's proposed main application is as a "bottoming cycle" for large power plants that need cooling towers.
The application proposed by Louat in his patent claims is to provide a less-expensive alternative to a physical solar updraft tower. In this application, the heat is provided by a large area of ground heated by the sun and covered by a transparent surface that traps hot air, in the manner of a greenhouse. Theory of operation The air in the arena rises (35).
MIT's All-in-One Solar ORC to Provide Heat, Electricity, and Hot Water For African Communities. MIT-based nonprofit STG International is looking to make isolated African clinics and schools much more self-sufficient with a new hybrid power and heat solar system.
The unique system combines off-the-shelf technologies to provide electricity, hot water and space heating, with potential cooling as well. The heart of the system is a brilliant type of refrigeration cycle – instead of using hot refrigerant gases to remove heat, it uses heat to run a common compressor in reverse to make electricity. The unique solution does double and triple duty for a small African clinic, saving significant amounts of money on fuel. The system is designed to be built using readily available materials and technologies available in Africa, and its inventors MIT graduate PHDs Matthew Orosz and Amy Mueller are opening a non-profit company to install at least five units to test the viability of the design.
McCamley's New Vertical Axis Wind Turbines Could Make Urban Wind Farms a Reality. Urban wind turbines face an up-hill battle, as many people feel they are too big, too expensive, and potential eyesores.
However McCamley just unveiled a prototype for a new vertical-axis turbine with a revolutionary design that allows it to overcome many of the issues associated with large horizontal-axis turbines. The company just installed its first prototype of the McCamley MT01 Mk2 in the UK at Keele University. The new vertical-axis turbine has been installed at Keele University Science and Business Park by McCamley UK Ltd as part of a plan to transform how cities generate renewable energy. Whereas most turbines rely on a steady wind speed, McCamley’s vertical-axis turbine can cope with stronger, more turbulent gusts that are often found in urban environments. Also, whereas standard turbines draw power from the electrical grid to restart themselves whenever the wind drops below a certain level, the McCamley turbine is a self-starting wind turbine.
DryBath Takes Water Out Of Showering. (Reuters) - With inspiration from a friend too lazy to take a shower and a few months of research on the Internet, South African university student Ludwick Marishane has won global recognition for an invention that takes the water out of bathing.
Marishane, a 22-year-old student at the University of Cape Town invented a product called DryBath, a clear gel applied to skin that does the work of water and soap. The invention, which won Marishane the 2011 Global Student Entrepreneur of the Year Award, has wide applications in Africa and other parts of the developing world where basic hygiene is lacking and hundreds of millions of people do not have regular access to water. The product differs from the anti-bacterial hand washes by eliminating the heavy alcohol smell. It creates an odourless, biodegradable cleansing film with moisturisers. Algae-Powered Pods Provide Fresh Air in an Otherwise Polluted Environment.
Dual-Action Wind Turbine Generates Power and Water. Nouvelle alerte environnementale: épuisement du phosphore ! Un champ d'ognons fertilisé de façon traditionnelle, à droite, et avec champignons mycorhiziens à gauche.
(Photo: Serge Gagné) Le phosphore est un élément essentiel à la vie, tant végétale qu'animale: il constitue un nutriment important pour les plantes et il entre dans la formation de nos os, de nos nerfs et même dans la composition de l'ADN. Son rôle de nutriment pour les végétaux fait qu'il est abondamment utilisé dans la production d'engrais chimiques.
Tellement que les réserves mondiales risquent d'être épuisées d'ici une quarantaine (La quarantaine (venant de l'italien : quaranta giorni, qui signifie 40 jours, ou bien du français : quarantaine de jours) est le fait de mettre à l'écart des personnes...) d'années. Épuisement des réserves Mohamed Hijri Le phosphore est extrait de roches sédimentaires phosphatées et est donc une ressource non renouvelable. Selon un scénario optimiste, la pointe de l'exploitation serait atteinte en 2030 et les réserves seraient épuisées en 2120. Solar Panel-In-a-Tube Generates Power and Hot Water At the Same Time. La belle Bleue, le panier de votre région. La Belle Bleue livre à votre domicile des paniers variés et à votre rythme tout au long de l'année (selon votre choix: hebdomadaire, bimensuel ou une fois par mois).
Vous pouvez composer votre livraison selon vos besoins et désirs. Nos différents paniers de légumes, fruits, viande et fromage La belle Bleue livre des paniers variés et à votre rythme tout au long de l’année (selon votre choix: hebdomadaire, bimensuel ou une fois par mois). Vous pouvez composer votre livraison selon vos besoins et désirs avec : PRINCIPAL. The LifeStraw makes dirty water clean. More than one billion people – one sixth of the world’s population - are without access to safe water supply.
At any given moment, about half of the world's poor are suffering from waterborne diseases, of which over 6,000 – mainly children – die each day by consuming unsafe drinking water. The world’s most prolific killer though is diarrhoeal disease from bacteria like typhoid, cholera, e. coli, salmonella and many others. Safe water interventions have vast potential to transform the lives of millions, especially in crucial areas such as poverty eradication, environmental upgradation, quality of life, child development and gender equality. LifeStraw was developed as a practical response to the billions of people who are still without access to these basic human rights. View all The aptly-named LifeStraw is an invention that could become one of the greatest life-savers in history.