Advertisement
more top stories »

Thermoelectricity

— Science Feature

Voyager spacecraft head for interstellar space

The last time we checked on the Voyager 1 & 2 they were hurtling towards the edge of the solar system at over 37,000 mph (60,000 km/h). The car-sized spacecraft are now and incredible 11 billion miles (17 billion km) and 8 billion miles (14 billion km) from Earth respectively – they are the longest continuously operated spacecraft in deep space and having traveled further than any man-made object, they will soon become the first to enter the realm of interstellar space. NASA recently held a briefing on the achievements of the program which gives us the opportunity to ponder where the Voyagers are, where they are going and the amazing scientific discoveries realized so far in their 33 year journey. Read More
— Wearable Electronics

Solar Soldier system to take the weight off infantry soldiers

By - March 15, 2011 4 Pictures
If you’ve ever removed the battery from a laptop, then you will know that it constitutes quite a large percentage of the total weight of the computer. Well, if you think you’ve got it tough lugging that laptop battery around, consider the plight of infantry soldiers – they have to carry multiple batteries to power devices such as weapons, radios, and GPS equipment, and they have to do so for hours at a time, often under very harsh conditions. Attempts to lighten the 45 to 70 kg (99 to 154 lb) loads typically carried by soldiers currently include the use of fuel cells, li-ion batteries woven into their clothing, and autonomous pack horse-like vehicles. Now, UK researchers are adding their two pence-worth, by developing wearable solar and thermoelectric power systems. Read More
— Science

Researchers create material to more efficiently harness waste heat

By - January 18, 2011 1 Picture
Thermoelectric materials offer the potential to harness electricity from otherwise wasted heat. Continuing research in the field could yield applications scavenging energy from vehicle exhaust systems, industrial processes and equipment, and even sunlight. Now researchers have created a material with a higher energy conversion efficiency that could make such systems more feasible. Read More
— Automotive

Yet another automotive gas-electric hybrid technology looms

By - November 25, 2010 1 Picture
The energy crisis has certainly catalyzed a great deal of thought about how we harvest all that energy we previously wasted. The petroleum-burning internal combustion engine has traditionally leaked energy from the exhaust system in the form of heat, but new ThermoElectric Generator (TEG) research at Purdue University aims to yield as much as a ten percent reduction in fuel consumption by converting heat from the exhaust into electricity. It is hoped that the thermoelectric research will eventually lead to other methods of turning waste heat into electricity in homes and power plants, new and more efficient solar cells and perhaps even a solid-state refrigerator. Read More
— Electronics

Putting waste heat from electronics to good use

By - September 28, 2010 1 Picture
Researchers at two different institutions have recently announced the development of technologies for converting waste heat from electronics into something useful. At the California Institute of Technology (Caltech), they’ve created a silicon nanomesh film that could collect heat from electric appliances such as computers or refrigerators and convert it to electricity. Meanwhile, their colleagues at Ohio State University (OSU) have been working with a semiconducting material that has the capacity to turn waste heat from computers into additional processing power. Read More
— Mobile Technology

Thermoelectric boots charge your mobile phone

By - June 8, 2010 3 Pictures
European Telco Orange is showing off an interesting phone charging prototype – a set of Wellington Boots with a ‘power generating sole’ that converts heat from your feet into electrical power to charge your battery-powered handhelds. You'll need to walk for twelve hours in your “Orange Power Wellies” to get an hour of battery life but we still think it's remarkable that such significant amounts of energy can be harvested from normal human activity. In order to decrease the length of time you need to charge your phone, try dancing or running, because the hotter your feet get, the more energy you produce. Read More
— Outdoors

BioLite low-emission camping stove creates its own electricity

Consider the humble camping stove. It requires fuel - perhaps some unwieldy bottle that air carriers object strongly to. Maybe it needs batteries to run a fan, or billows out smoke so you smell like smoked sweatshirt for the rest of the trip. The solution might be the BioLite stove - it's a collapsible wood-burning cook stove that uses almost any forest-found fuel and converts its own heat energy into electricity to achieve efficient combustion with ultra-low emissions. Read More
— Science

Carbon nanotubes offer new way to produce electricity

By - March 8, 2010 1 Picture
MIT scientists have discovered that a moving pulse of heat traveling along the miniscule wires known as carbon nanotubes can cause powerful waves of energy. These "thermopower waves" can drive electrons along like a collection of flotsam propelled along the surface of ocean waves, creating an electrical current. The previously unknown phenomenon opens up a new area of energy research and could lead to a new way of producing electricity. Read More
— Science

Researchers harness heat to power electronics

By - February 17, 2010 1 Picture
Efforts to capture energy from the human body usually focus on harnessing the kinetic energy of the body’s movement. However the human body is also generating energy in the form of heat that could also be used to run low power electronic devices. New energy-scavenging systems under development at MIT could generate electricity just from differences in temperature between the body (or other warm object) and the surrounding air. Read More
Advertisement
Advertisement
Advertisement
Advertisement
Advertisement

Subscribe to Gizmag's email newsletter

Advertisement