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

2. MARKET INVESTIGATION
Pay Back Time for ABS unit on ship
Usage time fraction [-]
1,0
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0,0
0 2 4 6 8 10 12
Pay Back Time [years]
Figure 2.2: The x-axis shows the pay back time for a given usage time fraction (how big a
fraction of the time the Absorption unit runs). The Pay Back Time is for an ABS unit mounted
on an existing SOFC without the cost/gain of the SOFC itself.
Conclusion
If the ABS unit is in use more than about 30% of the time there seems
to be a relatively good economical potential in adding an absorption air
conditioning unit on ships where an SOFC is installed. It has, however,
not been investigated whether the SOFC in itself is profitable to begin
with. Furthermore one of the producers of absorption air conditioning
units claim that they are fairly sensitive to the inclination of the floor [7],
so the rocking motion of ships might pose a problem. This has not been
investigated further though.
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