look at emissions formation, and only
after they see how those emissions
grow throughout the process of combustion can they come back and figure
out a way to scale that back or eliminate the emissions.
“And so at a basic level we believe
that there is an intake-to-exhaust simulation flow for a molecule that it has to
be tracked all the way through the mixing and the turbulent combustion
process that goes on inside any of
these engines. We see that there is a
piece that’s falling down now, which is
the inability to accurately predict the
chemistry effects of all that is going on.”
The new Model Fuels Consortium
(MFC), sponsored by Reaction Design,
was instituted to help with this process
and has member companies that include engine manufacturers, energy
producers and oil companies. This consortium arose out of the need for better
models and tools that more closely represent “real” fuel. CFD tools alone can
not accurately model detailed kinetics,
according to the company.
DESIGN TOOLS
“Most models in use today are ‘fitted’
to empirical data and cannot be reliably
used for different conditions,” said Rosenthal. “This resulted in the need for
‘real’ fuel models that can be used over
a wide range of operating conditions.”
The MFC focuses on the development of top-of-the-line commercial software tools that allow analysis and prediction of real chemistry effects in practical engine simulations, in addition to
the generation of surrogate models for
real fuels and the validation of surrogate models, as well as the establishment of a reliable database of “
certified” models. dp
DIRECTLINK @
dp POWERLINES
UltraVolt Expansion
UltraVolt Inc., a manufacturer of high-voltage dc-to-dc converters, has announced the
purchase of Galluppi Associates Inc., a high-voltage system integration company. Galluppi
has introduced systems for various military
COTS programs, semiconductor equipment
tools, industrial equipment, medical devices
and biotechnology systems, which UltraVolt
said complements its product line and will
allow it to expand and offer new products.
Ultravolt also announced the addition of a
new international representative for Spain
and Portugal, Instrumatic Espanola S.A. The
company will offer UltraVolt’s line of off-the-shelf, standard products and accessories.
Nanmac Corp., a supplier of thermocouples, has opened a sales, engineering and
support center in Shanghai, China.
According to Nanmac, the company has
been selling into China for about a decade,
and this center will help it to more effectively serve the growing customer base of the
area. Currently all of Nanmac’s products
are currently manufactured at its
Framingham, Mass., headquarters.
