Power and Electrical Engineering

A unique solar collector was developed by specialists of the Moscow “ALTEN” company under the guidance of Boris Kazandzhan, Professor, Doctor of Science (Engineering), Moscow Power Engineering Institute. Originality of the novelty lies in its extremely high efficiency. The collector not only manages to entrap the heat of solar beams falling on its surface, but also to utilize it to a great extent for direct purpose – for water heating.

Evidently, the idea of water heating in sunlight is

A University of Florida engineer is the latest researcher to design a tiny, easy-to-manufacture motion sensor, a development that could help popularize the sensors as standard equipment in personal electronics, medical devices and other applications.

The sensor, which measures about 3 square millimeters or one-tenth of an inch, is not the smallest motion sensor ever invented. But it is extremely sensitive, draws only a tiny amount of electrical power and — most important – is one of a

A solar cell, made of titania nanotubes and natural dye, may be the answer to making solar electricity production cost-effective, according to a Penn State researcher.

“Solar cell technology has not changed very much over time and is still predominantly silicon solar cells,” says Dr. Craig Grimes, professor of electrical engineering and materials science and engineering. “It takes a great deal of energy, 5 gigajoules per square meter, to make silicon solar cells. It can be ar

Just about everything that runs on batteries – flashlights, cell phones, electric cars, missile-guidance systems – would be improved with a better energy supply. But traditional batteries haven’t progressed far beyond the basic design developed by Alessandro Volta in the 19th century.

Until now.

Work at MIT’s Laboratory for Electromagnetic and Electronic Systems (LEES) holds out the promise of the first technologically significant and economically viable alternative to co

Fire panels, or “annunciators,” are electronic devices that display data on building conditions in one easily accessible location. When used by first responders during emergencies, the devices can save lives. In December 2005, the National Electrical Manufacturing Association (NEMA) released a comprehensive standard* that promises to make future annunciators even more useful decision-making tools to fire fighters at the scene, to commanders back at headquarters, or to building and emergency pers

With world oil demand growing, supplies dwindling and the potential for weather- and conflict-related supply interruptions, other types of fuels and technologies are needed to help pick up the slack.

A group of experts in science, engineering and public policy from the Georgia Institute of Technology, Imperial College London and the Oak Ridge National Laboratory recommend a comprehensive research and policy plan aimed at increasing the practicality of using biofuels and biomat