Recovering low-temperature waste heat and converting it into electricity
Heat loss is one of the main challenges in power production—whether from conventional or renewable sources. The trouble is that the wasted energy often stems from limitations of the power conversion...
View ArticleAdvanced alien civilizations rare or absent in the local universe
Sensitive new telescopes now permit astronomers to detect the waste heat that is expected to be a signature of advanced alien civilizations that can harness enormous energies on the scale of the...
View ArticleWaste heat likely to boost energy efficient production
Europe has a leading position in technologies for clean manufacturing, but significant efforts are needed to lower investment costs and encourage factory managers to adopt energy-efficient innovations.
View ArticleFractals aid efforts to understand heat transport at nanoscale
Researchers for the first time have applied a modern theory of heat transport in experiments with semiconductors used in computers and lasers, with implications for the design of devices that convert...
View ArticleResearchers obtain patent for new process that converts waste heat into hydrogen
Researchers from the Department of Civil and Environmental Engineering at Penn State have discovered an effective method to convert waste heat into hydrogen gas without the use of fossil fuels.
View ArticleNanostructuring technology to simultaneously control heat and electricity
The improvement of thermoelectric materials that can directly convert wasted heat to electric energy may lead to one of the solutions for energy issues. For high performance in thermoelectric...
View ArticleAdding sodium produces material that is most efficient at converting heat to...
In the production of power, nearly two-thirds of energy input from fossil fuels is lost as waste heat. Industry is hungry for materials that can convert this heat to useful electricity, but a good...
View ArticleResearchers turn paper waste into ultralight super material that improves oil...
A research team from the National University of Singapore's (NUS) Faculty of Engineering has achieved a world's first by successfully converting paper waste into green cellulose aerogels that are...
View ArticleResearchers present new findings on magnetic spin waves
An international team of researchers gained new insights into magnetic spin waves. Spin waves can evolve in electrically non-conducting materials given a specific temperature gradient and then be...
View ArticleUsing waste heat to generate electrical power
A new study contributes to "increasing the energy efficiency of industrial processes and cutting the emission of gases that pollute the atmosphere."
View ArticleOrganic Rankine Cycle - Drawing the last drop of energy from heat
Organic Rankine Cycle uses heat in water or exhaust gasses to produce electricity. Often it uses waste heat. Most engineering companies implementing ORC-solutions do so for large systems at high...
View ArticleScientists develop novel system that recovers energy normally lost in...
Each year, energy that equates to billions of barrels of oil is wasted as heat lost from machines and industrial processes. Recovering this energy could reduce energy costs. Scientists from Australia...
View ArticleThe role of electron diffusivity when turning waste heat into electricity
Many phenomena in physics, though well-known, are not necessarily widely understood. That's the case with thermoelectricity, which harnesses waste heat by coupling heat flux and electric current....
View ArticleFirst-ever videos show how heat moves through materials at the nanoscale and...
Using a state-of-the-art ultrafast electron microscope, University of Minnesota researchers have recorded the first-ever videos showing how heat moves through materials at the nanoscale traveling at...
View ArticleQuantum thermal transistor can control heat currents
(Phys.org)—Researchers have designed a quantum thermal transistor that can control heat currents, in analogy to the way in which an electronic transistor controls electric current. The thermal...
View ArticleConverting waste heat into electricity works better in two dimensions
(Phys.org)—The large amount of waste heat produced by power plants and automobile engines can be converted into electricity due to the thermoelectric effect, a physics effect that converts temperature...
View ArticleNew track for converting waste heat to electricity
Huge amounts of energy are lost every day in the form of waste heat. Now an interdisciplinary project at Chalmers has found that a special class of material – high-entropy alloys – can open the door to...
View ArticleA new approach to building efficient thermoelectric nanomaterials
By doping a thermoelectric material with minute amounts of sulfur, a team of researchers has found a new path to large improvements in the efficiency of materials for solid-state heating and cooling...
View ArticleShaker test of radiator panel
A radiator panel designed to ensure telecommunication satellites keep their cool in space seen during testing on the most powerful electrodynamic shaker of ESA's ESTEC Test Centre.
View ArticleScientists unveil fundamental properties of spin Seebeck effect
Thermoelectric effects are a fundamental building block for the conception and development of new processes for information processing. They enable to re-use waste heat obtained in different processes...
View ArticleStudy explores thermoelectric screen printing
What if you could easily print a thin layer of material – for use anywhere – that would allow you to create flexible energy harvesters or coolers? That may soon be a reality.
View ArticleResearchers report new thermoelectric material with high power factors
With energy conservation expected to play a growing role in managing global demand, materials and methods that make better use of existing sources of energy have become increasingly important.
View ArticleThermoelectric paint enables walls to convert heat into electricity
(Phys.org)—Paint these days is becoming much more than it used to be. Already researchers have developed photovoltaic paint, which can be used to make "paint-on solar cells" that capture the sun's...
View ArticleInnovative refrigerator developed using multistage sound wave engine
Shinya Hasegawa and colleagues at Tokai University have developed a refrigerator (107 C) powered only by waste heat that generated sound waves in an innovative multistage traveling wave thermoacoustic...
View ArticleDevices that convert heat into electricity one step closer to reality
The same researchers who pioneered the use of a quantum mechanical effect to convert heat into electricity have figured out how to make their technique work in a form more suitable to industry.
View ArticleBuilding block of thermal computer operates at 600 K
(Phys.org)—Researchers have built the hottest thermal diode to date, which operates at temperatures of more than 600 K (326 °C). Thermal diodes may serve as the building blocks of future thermal...
View ArticleResearchers create a high-temperature device that produces electricity from...
Glass and steel makers produce large amounts of wasted heat energy at high temperatures, but solid-state thermoelectric devices that convert heat to electricity either don't operate at high enough...
View ArticleNeutrons provide a novel picture of thermal conductivity in complex materials
The engineering of thermal conductivity in semiconducting materials is a central issue in the development of modern nano- and microtechnologies. Low thermal conductivity is important in materials used...
View ArticleResearchers develop 4-in-1 smart utilities plant custom-made for tropical...
A research breakthrough achieved by a team led by Associate Professor Ernest Chua from the Department of Mechanical Engineering at National University of Singapore (NUS) Faculty of Engineering could...
View ArticleOur cities are hidden power stations
Waste heat and locally-produced renewable energy can be generated by compact, "urban power plants" that are efficient enough to supply heat to entire housing estates.
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