Featured Research

from universities, journals, and other organizations

Fuel Cells, Energy Conversion And Mathematics

Date:
July 24, 2009
Source:
Society for Industrial and Applied Mathematics
Summary:
Concerns about dwindling fossil fuel resources, current levels of petroleum consumption, and growing pressure to shift to more sustainable energy sources are among many factors prompting the transition from our current energy infrastructure to one that uses less carbon and requires the efficient conversion of energy. Fuel cells have the potential to replace the internal combustion engine in vehicles and provide power in stationary and portable power applications, as they are energy-efficient, clean and fuel-flexible.

Concerns about dwindling fossil fuel resources, current levels of petroleum consumption, and growing pressure to shift to more sustainable energy sources are among the many factors prompting the transition from our current energy infrastructure to one that uses less carbon and requires the efficient conversion of energy. This necessitates collecting energy from ambient sources including wind, solar, and geothermal power, and converting it into appropriate forms for distributing electricity. While it is possible for this electric power to be distributed efficiently, conversion is necessary for use in automobiles and large-scale storage is problematic.

PEM Fuel Cells

Fuel cells are highly effective devices for converting energy from one form to another, they are more energy-efficient than combustion engines, and a variety of sources can be used to power them. In particular, Polymer Electrolyte Membrane (PEM) fuel cells, also called Proton Exchange Membrane fuel cells, take hydrogen and oxygen from the air to create electricity. They are typically used in automobiles. When pure hydrogen is used as a fuel, these fuel cells emit only heat and water as byproducts, eliminating concerns about air pollutants and greenhouse gases.

According to the U.S. Department of Energy, fuel cells have the potential to replace the internal combustion engine in vehicles and provide power in stationary and portable power applications as they are energy-efficient, clean, and fuel-flexible. The paper PEM Fuel Cells: A Mathematical Overview published on July 17 in the SIAM Journal on Applied Mathematics: Special Issue on Fuel Cells examines the mathematical issues that arise when modeling PEM fuel cells.

Math and PEM Fuel Cells

PEM fuel cells are good examples of energy conversion systems that have several levels of interacting functional structures. The interactions range from proton exchange at the nanoscale level to interactions at the macroscale level among the layered media of which the cells are made. Accurately simulating the resulting multiscale interactions requires carefully constructed mathematical models that faithfully represent the physics at the various scales. Modeling and analysis of PEM fuel cell structures, their construction, performance, and degradation also requires the development of new mathematical solutions and highly structured and highly adaptive numerical techniques. Mathematical analysis and scientific computation will play a large role in the resolution of these important issues and as a result will affect the progress of PEM fuel cell research and development.

The paper PEM Fuel Cells: A Mathematical Overview is co-authored by Keith Promislow of the Michigan State University and Brian Wetton of the University of Vancouver.


Story Source:

The above story is based on materials provided by Society for Industrial and Applied Mathematics. Note: Materials may be edited for content and length.


Cite This Page:

Society for Industrial and Applied Mathematics. "Fuel Cells, Energy Conversion And Mathematics." ScienceDaily. ScienceDaily, 24 July 2009. <www.sciencedaily.com/releases/2009/07/090724124134.htm>.
Society for Industrial and Applied Mathematics. (2009, July 24). Fuel Cells, Energy Conversion And Mathematics. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2009/07/090724124134.htm
Society for Industrial and Applied Mathematics. "Fuel Cells, Energy Conversion And Mathematics." ScienceDaily. www.sciencedaily.com/releases/2009/07/090724124134.htm (accessed July 22, 2014).

Share This




More Matter & Energy News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Government Approves East Coast Oil Exploration

Government Approves East Coast Oil Exploration

AP (July 18, 2014) The Obama administration approved the use of sonic cannons to discover deposits under the ocean floor by shooting sound waves 100 times louder than a jet engine through waters shared by endangered whales and turtles. (July 18) Video provided by AP
Powered by NewsLook.com
Sunken German U-Boat Clearly Visible For First Time

Sunken German U-Boat Clearly Visible For First Time

Newsy (July 18, 2014) The wreckage of the German submarine U-166 has become clearly visible for the first time since it was discovered in 2001. Video provided by Newsy
Powered by NewsLook.com
Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Obama: U.S. Must Have "smartest Airports, Best Power Grid"

Reuters - US Online Video (July 17, 2014) President Barak Obama stopped by at a lunch counter in Delaware before making remarks about boosting the nation's infrastructure. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

Crude Oil Prices Bounce Back After Falling Below $100 a Barrel

TheStreet (July 16, 2014) Oil Futures are bouncing back after tumbling below $100 a barrel for the first time since May yesterday. Jeff Grossman is the president of BRG Brokerage and trades at the NYMEX. Grossman tells TheStreet the Middle East is always a concern for oil traders. Oil prices were pushed down in recent weeks on Libya increasing its production. Supply disruptions in Iraq fading also contributed to prices falling. News from China's economic front showing a growth for the second quarter also calmed fears on its slowdown. Jeff Grossman talks to TheStreet's Susannah Lee on this and more on the Energy Department's Energy Information Administration (EIA) report. Video provided by TheStreet
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins