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One Cent Energy Harvesting

Posted by sleuz Jan 31, 2013
most powerful millimeter-scale energy harvester     Electrical engineers at the University of Michigan have built a device that can harness energy from vibrations and convert it to electricity with five to 10 times greater efficiency and power than other devices in its class. And it's smaller than a penny.   This new vibration energy harvester is specifically designed to turn the cyclic motions of factory machines into energy to power wireless sensor networks. These sensor netw ...
ZigBee Wireless Adopts Energy HarvestingZigBee low-energy radios can work without batteries     The low-power wireless energy “Internet of Things” standard ZigBee, used in smart metering systems, is now available in a battery-free version which harvests energy. The new specification will allow ZigBee, which is specified within the UK government’s ambitious smart meter programme, to operate without batteries by harvesting energy such as ambient radio waves.   ...
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sleuz

spreading the energy

Posted by sleuz Jan 9, 2013
Virus-powered smartphones US scientists developed a piezoelectrical generator made of viruses. Electricity is generated by pressing the virus. Embedded into your shoe sole, this could create current for mobile devices while walking.   Charged proteins The generator creates current on the base of the piezoelectrical effect: Mechanical energy such as pressure is transformed into electrical energy. Scientists discovered that the M13-Virus is piezoelectric, caused by 2.700 charged proteins c ...
Piezo, Solar and Peltier Scientists at the Massachusetts Institute of Technology (MIT) developed an energy harvesting generator using piezo, solar and peltier energy. Their system supplies sensors with the energy from all 3 sources.   3 Sources - the generator transforms vibration, sunlight and heat into electrical energy. The advantage is to power one single sensor with more than one source. But there is a big difference within the efficiencies of each source: peltier systems reach betw ...
Transparent generator generates electricity through friction A simple generator consisting of 2 synthetic layers - polyester and polydimethylsiloxane - transforms mechanical energy into electrical energy. When both materials are rubbed against each other, the polyester releases electrons which can be absorbed by the polydimethylsiloxane. After this is done both surfaces get separated again. As the process repeats alternating current is produced.   To increase the efficiency of the generat ...
Electricity from a tea light T-Pod is a small power plant for on the road. Powered by a small candle, the device can generate electricity for lamps or can charge cell phone batteries. Tea lights are normally used to keep things warmed up. This generator turns a candle into an energy source.   Thermoelectric Effect The device is called Thermoelectric Power On Demand 1 (T-Pod 1), it transforms thermoelectric heat into electric current. A candle heats the material which generates electricity ...