EP 1110-1-8
(Vol. 1)
31 July 03
8.
OPERATING RATES:
a.
Hourly Fuel Cost = (Engine Fuel Factor x hp x Fuel Cost/Gal)
(1) Prime Engine Fuel:
(0.045 x 3,730 hp x
||content||
.43 /gal)
=
0.03 /hr
(2) Secondary Engine Fuel:
(0.039 x 2,475 hp x
||content||
.43 /gal)
=
8.03 /hr
b.
Hourly Water, Lube, and Supply Cost = (WLS factor x Hourly Fuel Cost)
(1) Prime Engine WLS:
(0.22 x 0.03)
=
.81 /hr
(2) Secondary Engine WLS:
(0.22 x 8.03)
=
.37 /hr
c.
Hourly Repair Cost:
(1) EAF:
= (Economic Index for Year of Use / Economic Index for Acquisition Year)
(6022 <for 2003> / 3886 <for 1987>
=
1.550
(2) Hourly Repair Cost:
= (Total Plant Value x RPR x EAF x LAF) / Physical Life in hr
(,700,000.00 x 1.30 x 1.550 x 1.150) / 130,000 hr
=
.95 /hr
d.
Total Hourly Operating Cost: = (Fuel + WLS + Repairs)
(0.03 + 8.03 + .81 + .37 + .95)
=
7.19 /hr
e.
Monthly Operating Cost: = (Total Hourly Operating Cost x
Hours Worked per/Month)
(7.19 /hour x 500 hours/month)
=
3,595.00 /mo
9.
SUBTOTAL MONTHLY COST = (OWNERSHIP + OPERATING):
(,734.00 /month + 3,595.00 /month)
=
6,329.00 /mo
10. ESTIMATED ADDITIVE ITEMS (Sheet 1, Item k.):
a. Excessive Dredge Water (Gravel)
,000.00 /mo
b.
/mo
c.
/mo
d.
/mo
e.
/mo
Figure 4-2. Dredging Plant Ownership and Operating Rate Worksheet (Continued)
Page 3 of 4
4-15
Previous Page
