DOE-2 Engineers Manual Version 2.1A - DOE-2.com

2.3 Economic Calculations
Calculations related to the economics of plant equipment are made in the
PLANT program. The first costs and subsequent replacement costs are combined
to calculate the investment. Annual maintenance, periodic overhauls, and
energy costs are combined to evaluate savings.
The present value of life-cycle costs are calculated for (1) purchase,
installation, and maintenance of plant equipment, and (2) the fuel and
electricity used by the facility. The results of these calculations are
passed to the ECONOMICS program.
Var i ab 1 eLi s t
FORTRAN
Keywords Vari ab les
DISCOUNT-RATE Al,ALFCYC{l)
EQCOSTI
EQCOST2
EQCOST3
COST UBLK{2,I,J)
CONSUMABLES
FIRST-COST
XB
CONSUM
ENCOSTi
Engineering
V ari ab les
A
Cl
C2
Cbl un it
Ccons
Ccons/hr
Cfirst
V.121
Descri pt i on
discount rate
first cost for an equ ipment
type
present value of life cycle
costs from consumables and
annual maintenance for an
equi pment type
sum of the replacement,
minor overhaul, and major
overhaul costs over the
life cycle period
the 1 ist of costs per unit
energy corresponding to the
blocks of energy specified
by keyword BLOCK
the cost for th i s block of
energy
annual consumables
cost per hour of operation
for consumables
present value of all the
energy of the ith type
consumed over the-entire
project life
initial cost of this type
of equipment