News tagged with fuel efficiency

Fuel efficiency tops wish list of new-car buyers

Fuel efficiency was the most important car-purchase factor for 37 percent of those surveyed in the new Consumer Reports National Research Center car-owner survey.

Technology / Energy & Green Tech

created May 28, 2012 | popularity 5 / 5 (1) | comments 3

Mechanical motion rectifier leads to better energy harvesting

(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...

Technology / Engineering

created Apr 25, 2012 | popularity 4.9 / 5 (9) | comments 26 | with audio podcast report

Rational design can improve hydrogen fuel cell efficiency

(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...

Chemistry / Materials Science

created Feb 29, 2012 | popularity 4.4 / 5 (12) | comments 0 | with audio podcast feature

Artificial light-harvesting method achieves 100% energy transfer efficiency

(PhysOrg.com) -- In an attempt to mimic the photosynthetic systems found in plants and some bacteria, scientists have taken a step toward developing an artificial light-harvesting system (LHS) that meets one ...

Chemistry / Materials Science

created Sep 01, 2011 | popularity 4.9 / 5 (40) | comments 22 | with audio podcast feature

Silicon nanohole solar cells aim to make photovoltaics cost-competitive

(PhysOrg.com) -- Due to the increasing demand for renewable energy sources, photovoltaic solar cells have advanced significantly over the past decade. Since 2002, photovoltaic production worldwide has been ...

Nanotechnology / Nanomaterials

created May 07, 2010 | popularity 4.5 / 5 (26) | comments 13 | with audio podcast feature

The case of the missing gas mileage

Contrary to common perception, the major automakers have produced large increases in fuel efficiency through better technology in recent decades. There’s just one catch: All those advances have barely ...

Technology / Energy & Green Tech

created Jan 04, 2012 | popularity 4.1 / 5 (22) | comments 63 | with audio podcast

Split-cycle engine now more efficient than traditional combustion engine (w/ Video)

(PhysOrg.com) -- Split-cycle engines have been around for some time but until now have never matched the fuel efficiency of traditional internal combustion engines. That is about to change, with the latest ...

Technology / Engineering

created Jan 24, 2011 | popularity 4.9 / 5 (32) | comments 20 | with audio podcast report

Energy harvesters transform waste into electricity

Billions of dollars lost each year as waste heat from industrial processes can be converted into electricity with a technology being developed at the Department of Energy's Oak Ridge National Laboratory.

Technology / Energy & Green Tech

created May 16, 2011 | popularity 5 / 5 (6) | comments 22 | with audio podcast

Fuel-injection System That Delivers 64 Miles Per Gallon

(PhysOrg.com) -- The best hybrid cars of today can only deliver about 48 miles per gallon. By using this newly developed fuel injection system a test vehicle was measured at achieving 64 miles per gallon in ...

Technology / Energy & Green Tech

created Mar 10, 2010 | popularity 4.1 / 5 (38) | comments 37 | with audio podcast weblog

How to choose a catalyst: Predicting which materials will perform best in fuel cells and metal air batteries

MIT researchers have found a new way to predict which materials will perform best as catalysts for oxygen reduction, a core process in metal air batteries and fuel cells, opening up the possibility of faster ...

Chemistry / Materials Science

created Jun 14, 2011 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Discovery paves way for development of efficient, inexpensive plastic solar cells

Physicists at Rutgers University have discovered new properties in a material that could result in efficient and inexpensive plastic solar cells for pollution-free electricity production.

Nanotechnology / Nanomaterials

created Oct 10, 2010 | popularity 4.7 / 5 (20) | comments 6 | with audio podcast

Hydrogen Storage Gets New Hope from Rechargeable 'Chemical Fuel Tank'

(PhysOrg.com) -- A new method for "recycling" hydrogen-containing fuel materials could open the door to economically viable hydrogen-based vehicles.

Chemistry / Materials Science

created Sep 01, 2009 | popularity 3.9 / 5 (18) | comments 19

Gasoline-diesel 'cocktail': A potent recipe for cleaner, more efficient engines

(PhysOrg.com) -- Diesel and gasoline fuel sources both bring unique assets and liabilities to powering internal combustion engines. But what if an engine could be programmed to harvest the best properties ...

Technology / Energy & Green Tech

created Aug 03, 2009 | popularity 4.3 / 5 (27) | comments 6

Magnesium: Alternative Power Source

(PhysOrg.com) -- There is enough magnesium to meet the world's energy needs for the next 300,000 years, says Dr. Takashi Yabe of the Tokyo Institute of Technology.

Technology / Energy & Green Tech

created Apr 23, 2010 | popularity 4.3 / 5 (40) | comments 29 | with audio podcast weblog

Increasing fuel efficiency with a smartphone

In July, at the Association for Computing Machinery’s MobiSys conference, researchers from MIT and Princeton University took the best-paper award for a system that uses a network of smartphones mounted ...

Technology / Engineering

created Aug 25, 2011 | popularity 3.2 / 5 (5) | comments 4 | with audio podcast