| |
A
similar question with respect to the
efficiency increase:
What would be the minimum required
efficiency increase, so that the additional
investment for the open cycle reaches
an Internal Rate of Return (IRR) of
at least 20%? |
| |
| Spemann
PG-ROI gives the answer by
its built-in sensitivity analysis. The
graphic display of the results makes
it easy to find out that a 20% IRR is
reached when the efficiency increases
at least 0.0022 (=0.22%) from 55.9 to
56.12%. |
| |
|
|
xx |
 |
| |
| Even
if the output dropped with the open cycle
compared to the cooling tower, the additional
investment still would pay off within three
years, due to the savings of fuel costs from
higher efficiency. |
|
