Biomedical Engineering Reference
In-Depth Information
Total unit of electricity produced
7446 h
1kW
7446 kW/year
5
3
5
Variable O&M
$0.0031/kW h
7446 kW h
$23.08/kW/year
5
3
5
Yearly fixed O&M
$31/kW/year
5
Total O&M
23.08
31
$54.08/kW/year
5
1
5
Total revenue requirement
$54.08
$223.69
$277.68/kW installed/year
5
1
5
For 40 MW plant RR
5
40,000
3
277.68
5
$107,200/year
SYMBOLS AND NOMENCLATURE
F
fuel input to the gasification plant (tons/h)
K
g
specific capacity of a new gasifier plant ($/MWe)
MW
capacity of a new gasifier (MW)
K
g0
specific capacity of an existing gasifier plant ($/MWe)
MW
0
capacity of an existing gasifier (MW)
c
constant, depending on the gasifier equipment and capacity (
)
C
g
total cost of a new gasifier ($)
C
g0
total cost of an existing gasifier ($)
n
capacity index (
)
C
g
A
capital cost in a certain year ($)
C
g
B
capital cost in a past year ($)
I
A
cost index for year A (
)
I
B
cost index for year B (
)
CC
capital cost of a plant ($)
C
fp
cost of fuel preparation ($)
C
tg
cost of turbine generator system ($)
C
e
cost of auxiliary plant ($)
TPC
total cost of the plant ($)
C
con
cost of construction of the gasification plant ($)
C
proj
cost of project development ($)
C
cont
office cost and contingency ($)
C
cont, tech
process contingency cost ($)
C
cont, proj
project contingency cost ($)
TPI
total project investment for a new plant ($)
AFDC
interest paid on the borrowed capital ($)
TCR
total capital requirement ($)
C
start
funds required for start-up expense ($)
C
wc
working capital required ($)
C
ca
funds required for the initial catalyst and other supplies ($)
TOE
total operating expense in a biomass plant ($)
O&M
variable
variable operating costs ($)
O&M
fixed
fixed operating costs ($)
R
D
return on debt ($)
R
E
return on equity ($)
D
B
topic depreciation ($)
T
income tax ($)
RR
the total revenue required from sales of all products from the plant ($)
C
c
carrying charge ($)
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