Environmental Engineering Reference
In-Depth Information
Specific investment costs in
d
per m
n
3
raw gas upgrading
capacity of five biogas upgrading methods based on [14-17, 45]
(Copyright: Fraunhofer IWES, 2012).
15.16
costs will be decreased if no off-gas treatment is included. Analysis of Fig.
15.16 would suggest
significant cost degression for capacities increasing from 250 to 500m
n
3
/h
.
further cost degression for a capacity increase from 500 to 1000m
n
3
/h
.
marginal degressions for increases above 1000m
n
3
/h raw gas upgrading
capacity
.
.
specific investment costs for the different methods tend to be
comparable for all technologies, especially in the range 700-1400 m
n
3
/h.
Subsequent specific upgrading costs for these five different methods are
discussed using the following framework conditions and assumptions.
.
Investment and maintenance (as full maintenance contract) costs based
on price indications of current plant generations of technology providers
[14-17, 45].
.
Interest rate of 5%.
.
Costs for planning, permission and further construction costs; 10%
related to investment costs.
.
Operating time of 15 years.
.
Costs for insurance; 0.5% related to investment costs according to [50].
.
Plant availability of 96% (8410 h/year).
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