Sustainable Technologies

Bladeless Wind Turbine

Every year windmills kill 573,000 birds in the US according to the Associated Press. By some estimates the total number of birds and bats killed worldwide every year runs into several millions.
The concept being proposed in this abstract is for a “bladeless” windmill that would drastically reduce or eliminate bird fatalities due to windmills. The idea is based firstly on an electric fan proposed in a Japanese patent which has expired – (http://www.telegraph.co.uk/technology/news/6377644/Dyson-fan-was-it-invented-30-years-ago.html), and the Dyson fan. The Dyson bladeless fan has used airfoil technology to increase the speed and volume of the air moved by the fan – the “air multiplier” effect.

This concept proposes to use similar technology as these fans in a ...

In many areas of the world, the lack of readily available electrical energy, clean water, and employment opportunities are an interlocking problem that causes social strife, political conflicts, and limits the potential of millions of people. In a vicious circle, the lack of basic infrastructure limits the ability of an area to improve their economic condition, which impairs their ability to improve that supporting system.

This application is an attempt to address all three of these issues with not just a product, but with an entire production, fabrication, and deployment system. Physically, this is a design for a commercial off the shelf (COTS) wind turbine of effective size and power, mounted upon a tapered cylindrical tower that is enclosed ...

A Compressed-air engine is a pneumatic actuator that creates useful work by expanding compressed air. A compressed-air vehicle is powered by an air engine, using compressed air, which is stored in a tank. Instead of mixing fuel with air and burning it in the engine to drive pistons with hot expanding gases,compressed air vehicles (CAV) use the expansion of compressed air to drive their pistons.They have existed in many forms over the past two centuries, ranging in size from hand held turbines up to several hundred horsepower. For example, the first mechanically-powered submarine, the 1863 Plongeur, used a compressed air engine.

The laws of physics dictate that unconstrained gases will fill any given space.The easiest way to see ...

Conversion of 950va Tiger petrol generator to a renewable energy-RE powered 950va rotary genset is an experimental setup aim at carryout feasibility studies on ways of providing an alternating current- ac electricity generation for about 20hours /day. The 950va RE rotary genset is a combination of motor/generator arrangement. Its principle of operation is similar to normal inverter but energy draw from battery is only half of total energy consumed by normal inverter to produce same ac output.

Preliminary investigation was carried out to the best approach to establish such a technology inorder to contribute in solving problem of epileptic power supply in Nigeria and all third world countries.

From this activities, it is feasible with a 10 ...

Better side of the transmission of electricity through the HV DC are already proven! Application of DC / DC converters on the existing power grid, enabling translation T & D AC grid - into DC High Voltage Transmision & Distribution grid.

Application of DC / DC converters - transformers, at existing wired installations in the transmission and distribution system, we transform AC to DC network!

DC/DC step-up transformer, WITHOUT INDUCTIVE PARTS, shown on the link; http://www.youtube.com/watch?v=ToiZ4VgdIlI


DC/DC step-down transformer, WITHOUT INDUCTIVE PARTS,shown on the link; http://www.youtube.com/watch?v=D_1f5zEuCO8

are essential elements of future DC T&D network-grid !

It is only small, home-made devices, which prove new way for TRANSFORM DC/DC Voltage and Currents WITHOUT INDUCTIVE PARTS (coil, choke, transformers)! All ...

As far as this writer is aware, Cruise ship wastes are kept on board or possibly discharged far out at sea for no cost. To keep costs down for operators, certain marinas or nations could offer a barge based or mangrove/marina based bio-processing garden or off pump station. Using natural methods the waste food and fecal matter may be converted to clean water again.

Unfortunately, many of the stops of cruise ships are very pretty and susceptible to pollution therefore a barge that could remediate tank waste to higher or lower levels of perfection before being discharged to the sea may or may not be beneficial.

Thank you for considering this idea for implementation and entertainment.

Project artificial man ...

Runoff from farms dumps fertilizer nutrients into the world’s oceans. This causes dead zones which are oxygen-starved where few or no fish can live. The Baltic Sea currently has a project to oxygenate dead areas using windmill and air pump technology (See http://www.cnn.com/2012/07/17/world/europe/dead-zone-baltic-oxygen). However, transporting air underwater requires expensive piping, much energy to overcome water buoyancy and ballasted piping to keep the bubble manifold from floating upward. Moreover, underwater manifold discharge nozzles may tend to plug with algae. One solution is to use electrolysis to separate the water oxygen from the water. This mature technology has many advantages over pumping air.

1. Electrolysis produces more oxygen than air;
2. Wires determine where the oxygen goes without ...

The aim of the project was to develop a hydro power plant for sustainable development. After going through the past and current prevailing scenarios, it was inferred that there were no sources of clean energy in the urban metropolitan today and one was desperately required.

After going through numerous case studies and studying the concepts of decentralization, urban energy requirements and clean renewable sources of energy and combining these concepts, the fore proposed model came into existence.

The model is a classic combination of efficient management of resources and space both of which are of vital essence in the urban areas. It also takes into account the limited resources to generate hydro power and reducing load on the main ...

From the viewpoint of the power to engine weight ratio, 2-stroke engines have at least 40% better performance than 4-stroke engines but they produce undesirable emission levels with poor lubricating management. Therefore, it will be the main challenge in the double acting ICE`s. Double acting Internal Combustion Engine (ICE) having combustion chamber at each side of the piston would be a willing mechanism for the future engines because of improving the fuel efficiency of the ICE`s and passing all of the emission legislation which are the main goals of all car companies.

Background: (Fig.1)
In this invention, the MCE-5 technology in which Variable Compression Ratio (VCR) was used as a control parameter for increasing the efficiency of the ...


Modern world is witnessing the difficulty of managing the e-waste coming out of many sources, majorly from IT & BT companies, educational institutions in the form of unused PC’s and other things. Attempts are been made to manage e-waste just by digging in a waste land and disposing it, or by dumping the same at overseas….But, yet the problem exist. Scientists and engineers are trying hard to come up with new technologies that can tackle the problem of recycling some percentage out of it, but still it’s a difficult task. So coming up with an idea of manufacturing of E-bricks, in which we are using some percentage of e-waste, reduce the effects of ...

Page 3 of 13