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Annual Report 2010 - Fachgruppe Informatik an der RWTH Aachen ...

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energy consumption for data tr<strong>an</strong>smission <strong>an</strong>d overall a longer lifetime for the set of mobile<br />

clients.<br />

In both cases we consi<strong>der</strong> energy efficient data tr<strong>an</strong>smission on the application layer<br />

incorporating also lower layer techniques for even more efficient cross-layer solutions.<br />

Figure 2.: Tackling the increasing energy gap in UMIC<br />

SFB
686


<br />

Model­Based
Control
of
Homogenized
Low­Temperature
Combustion
<br />

Anca Maria Iv<strong>an</strong>escu, Christi<strong>an</strong> Beecks, Philipp Kr<strong>an</strong>en<br />


<br />


<br />

The aim of the SFB 686 is a model-based control of homogenized low-temperature<br />

combustion for efficient <strong>an</strong>d low-emission energy provision. This requires the cooperation of<br />

several fields, in or<strong>der</strong> to build up a thorough un<strong>der</strong>st<strong>an</strong>ding of the complex physical<br />

processes, as well as the investigation <strong>an</strong>d breakdown of the whole chain of effects, which<br />

leads from flow <strong>an</strong>d mixture to ignition <strong>an</strong>d then combustion, to finally end up with the<br />

combustion instabilities. To make the gained un<strong>der</strong>st<strong>an</strong>ding usable, a description of the<br />

physical effects on the basis of mathematical models follows.<br />

Besides intensive research in core areas of automatic control, the application <strong>an</strong>d development<br />

of computer-science methods have contributed to the adv<strong>an</strong>cement of MPC over the past<br />

years. Further synergies between automatic control <strong>an</strong>d data exploration are to be used <strong>an</strong>d<br />

extended on the basis of the experiences made so far.<br />

Project A provides the basics <strong>an</strong>d methods of automatic control for the entire CRC. This<br />

includes the control <strong>an</strong>d stabilization of highly dynamic processes in combustion chambers<br />

<strong>an</strong>d the model-based MIMO control of combustion engines. In the course of research on the<br />

processes in combustion chambers during the first funding period, a stabilization of<br />

combustion could be reached in simulation for both the well-stirred reactor <strong>an</strong>d the surface<br />

burner. The controls' evaluation on the test benches is currently being done. The feasibility of<br />

model predictive control of low-temperature combustion in engines was shown in a<br />

304

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