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<div><font color="#000000">Environment and Sustainability Seminar
Series<br>
Sponsored by the MIT Laboratory for Energy and the Environment
(LFEE)<br>
<br>
<b>NEXT TWO SEMINARS:<br>
<br>
THIS WEEK - "Hybrid Cars Now, Fuel Cell Cars Later"<br>
(Please note the time for this seminar - 12:45-2:15 pm)<br>
<br>
Prof. John Deutch<br>
</b>Institute Professor, MIT<br>
<br>
<b>Wednesday, November 3<br>
12:45-2:15 pm (NOTE TIME FOR THIS SEMINAR)<br>
E40-496<br>
<br>
</b>In the August 13, 2004 issue of<i> Science</i>, an article (link
below) by John Deutch and Nurettin Demirdoven compared the energy
efficiency of hybrid and fuel cell vehicles as well as conventional
internal combustion engines. Their analysis indicates that fuel cell
vehicles using hydrogen from fossil fuels offer no significant energy
efficiency advantage over hybrid vehicles operating in an urban drive
cycle. They conclude that priority should be placed on hybrid vehicles
by industry and government. This seminar will focus on the
analysis and findings presented in the article.<br>
<br>
ADVANCE READING: The article "Hybrid Cars Now, Fuel Cell
Cars Later" by Nurettin Demirdoven and John Deutch appeared in
Science, Vol 305, Issue 5686, 974-976, 13 August 2004. If you
are affiliated with MIT, the article is available through MIT's online
subscription to Science Magazine:<br>
<br>
<u>http://www.sciencemag.org/cgi/content/full/305/5686/974<br>
<br>
<br>
</u><b>NEXT WEEK -<br>
<br>
"Can Hydrogen be Part of the Near Term "Energy Equation"?"<br>
<br>
Prof. Ahmed Ghoniem<br>
</b>Department of Mechanical Engineering, MIT<br>
<br>
<b>Wednesday, November 10<br>
12:00 - 1:30 pm<br>
E40-496<br>
<br>
</b>With the debate on the merits and perils of the "hydrogen
economy" getting "red-hot", other scenarios should be considered
in the effort to improve fossil-based energy conversion efficiency.
These include the "hydrogen" option in other forms, such as
hydrogen-enriched combustion, reforming through chemical recuperation,
cascading cycles for waste heat recovery, etc. The first option
promises near-term performance enhancements with less onerous demand
on the support infrastructure, and it could offer gradual and smooth
transition towards "pure hydrogen", or other "chemical energy
carriers" that could be synthesized during short or long term
shortage of fossil-based hydrocarbons. Furthermore, it enables
expanding the available energy conversion hardware; the use of
"smart" systems; and better economic control over emissions. I
will present evidence and trends that support this scenario; the
technical background confirming the benefit of hydrogen enrichment;
and work underway to take advantage of this development.<br>
<br>
_________________________________________________________________<br>
Part of a series of brown bag talks on issues of energy, environment,
and sustainability sponsored by the MIT Laboratory for Energy and the
Environment. Bring your lunch - cookies and drinks will be
provided.<br>
<br>
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<div><font
color="#000000">_________________________________</font></div>
<div><font color="#000000">Karen L. Gibson</font></div>
<div><font color="#000000">Program Assistant</font></div>
<div><font color="#000000">MIT Laboratory For Energy and the
Environment</font></div>
<div><font color="#000000">77 Massachusetts Avenue,
E40-469</font></div>
<div><font color="#000000">(1 Amherst St., E40-469 - for DHL and
FedEx)</font></div>
<div><font color="#000000">Cambridge, MA 02139 USA</font></div>
<div><font color="#000000">Tel: 1 (617) 258-6368; Fax: 1
(617) 258-6590</font></div>
<div><font color="#000000">http://lfee.mit.edu</font></div>
<div><font
color="#000000">http://globalsustainability.org</font></div>
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