Power and Electrical Engineering

This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.

innovations-report provides in-depth and informative reports and articles on subjects ranging from wind energy, fuel cell technology, solar energy, geothermal energy, petroleum, gas, nuclear engineering, alternative energy and energy efficiency to fusion, hydrogen and superconductor technologies.

Wind energy not limited by technical barriers

Dutch research has demonstrated that there are no technical barriers to wind energy generating a significant part of the electricity supply. With the appropriate technical measures, possible problems in the electricity grid can be taken care of properly.

Researcher Han Slootweg developed simulation models, which demonstrate how wind energy affects the behaviour of electricity grids in concrete situations. These simulation models can also be used to establish the precise nature and size of a

Does wind power have a chance? Four analyses from Lund Institute of Technology

Wind power is the most rapidly growing form of energy in the world today. European wind power accounts for the greatest share, with Denmark, Germany, and Spain as leading countries. In Denmark, for example, wind power provides roughly 12 percent of production of electricity. In Sweden, too, wind power has increased, although to a more limited extent. Between 1996 and 2003 the number of plants doubled from 300 to 631, while annual production trebled from 0.15 to about 0.5 TWh. However, wind accounts f

Smaller, lighter power adaptors take the weight off laptops

As notebook computers become thinner and lighter, the ever-present bulky power adapters used for line current approach the weight of the laptops, but smaller and lighter adapters may be on the way, thanks to piezoelectric technology, according to a Penn State electrical engineer.

“Electromagnetic transformers are shrinking slightly, but there are theoretical limitations in reducing the general size,” says Dr. Kenji Uchino, professor of electrical engineering. “A piezoelectric motor and tran

To see the message, just add noise

USC nanotube device uses ’Stochastic Resonance’ to enhance subthreshold signals

Paradoxical as it seems, a team of University of Southern California researchers has built a signal detector that only works when noise is added.

The device uses a novel kind of transistor made from carbon nanotubes. The principal investigator, Professor Bart Kosko of the USC department of electrical engineering, claims that the series of experiments reported in the December issue of the American

Scientists decode DNA of bacterium that cleans up uranium contamination and generates electricity

Department of Energy-funded researchers have decoded and analyzed the genome of a bacterium with the potential to bioremediate radioactive metals and generate electricity. In an article published in the December 12th issue of Science, researchers at The Institute for Genomic Research (TIGR) and the University of Massachusetts, Amherst, report that Geobacter sulfurreducens possesses extraordinary capabilities to transport electrons and “reduce” metal ions as part of its energy-generating metabolism.

Gas Hydrates – Will they be considered in the future global energy mix?

For the first time, an international research program involving the Department of the Interior’s U.S. Geological Survey has proven that it is technically feasible to produce gas from gas hydrates. Gas hydrates are a naturally occurring “ice-like” combination of natural gas and water that have the potential to be a significant new source of energy from the world’s oceans and polar regions.

Today at a symposium in Japan, the successful results of the first modern, fully integrated p

Page
1 590 591 592 593 594 611