admin – Page 342 – Alternative Energies

admin
case
concept
December 27, 2015
0 Comments

Chemistry controls magnetism

Magnets are well-known from the physics lessons at school, but they are hardly covered in chemistry lectures; and it is still a chemical process by means of which researchers have succeeded in controlling magnetic properties in bulk ferromagnets. While physical processes may influence the orientation of the magnetic fields, the chemical process in this case controls magnetism in carefully chosen strongly ferromagnetic material systems. The working principle used in this case is similar to the concept of lithium-ion batteries.

admin
aip
american
December 26, 2015
0 Comments

Shifting winds: An early warning for reduced energy

Chinook winds can precede large shifts in wind power output from wind farms — a challenge for companies seeking to provide a constant stream of green energy to consumers. By establishing a connection between local meteorological events and power grid output, the researchers hope that they may ultimately help grid operators more accurately predict fluctuations in flow and manage the grid accordingly.

admin
education
electrochemistry
December 26, 2015
0 Comments

Perpetual youth for batteries?

A key issue with lithium ion batteries is aging. It significantly reduces their potential storage capacity. To date, very little is known about the causes of the aging effects. Scientists have now come a step closer to identifying the causes in their latest experiments.

admin
following
france
December 26, 2015
0 Comments

Aerodynamic effects can save tens of seconds in cycling time trials

Will the Tour de France prologue in Utrecht get the winner it deserves? New aerodynamic research shows that riders in a time trial can save vital seconds by riding closer to the following team car. Over a short distance like the prologue of the Tour de France, that can save as much as 6 seconds: enough to make the difference between winning and losing.

admin
alternatively
case
December 26, 2015
0 Comments

Storage advance may boost solar thermal energy potential

Engineers have identified a new approach for the storage of concentrated solar thermal energy, to reduce its cost and make it more practical for wider use.

admin
central
current
December 26, 2015
0 Comments

New flow battery offers lower-cost energy storage

Renewable energy can be stored for less with a new organic aqueous flow battery, which uses inexpensive and readily available materials. The new battery is expected to cost about 60 percent less than today’s standard flow batteries.

admin
December 26, 2015
0 Comments

Researchers prove surprising chemistry inside a potential breakthrough battery

Lithium-air batteries hold the promise of storing electricity at up to five times the energy density of today’s familiar lithium-ion batteries, but they have inherent shortcomings. Researchers have helped prove that a new prototype is powered by a surprising chemical reaction that may solve the new battery’s biggest drawback.