integration of solid oxide fuel cells and ... - Ea Energianalyse

5.3. Partial optimization of standard parameters
Figure 5.13: A+B In the standard parameter configuration the temperature of the low pressure
desorber is set at the temperature where the strong solutions out of DES1 and DES2 are equal
(intersection of red lines on the right figure). But by removing this equation an giving T DES1
explicitly, this can be changed to see how it affects the performance of the system.
5.13B shows that the intersection of the two red concentration curves
actually gives a desorber temperature quite close to the optimum for
COP ABS,f uel .
5.3.3 SOFC subsystem
Now some of the parameters in the SOFC subsystem are investigated. As
mentioned earlier: the anode and cathode side of the SOFC has the same
inlet temperature and the same outlet temperature.
Changing ∆T SOFC
A high temperature increase over the fuel cell (∆T SOFC ) is desirable
for several reasons. One of the reasons is that it reduces the required
air flow through the fuel cell thereby decreasing the blower power
consumption. But ∆T SOFC can in practice not be too high, since a higher
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