PERHITUNGAN TANGKI BAHAN BAKAR
PRINCIPAL DIMENSION
LOA
: 136.4 m
LBP
: 126.4 m
B : 21,2 m
T :8.35 m
Cb :0.715
Cp :0.726
H :1,5
a :0,6
vs : 14 knot = 7.2 m/s
BHPmcr :4631,5254 KW
BHP
mesin wartsila W8L32 :4640 KW
Fuel
Oil Consumtion : 182 g/KWH
Lubricating
Oil = 0.35 g /KWH
Jarak
Pelayaran = Surabaya-penang (1140 mill)
1. Massa
bahan bakar(HFO) :
Waktu pelayaran =
Massa bahan bakar = F.c x waktu tempuh x BHP x 10-6 x 0.95 ( satuan ton)
=182x84x4640x10-6x0.95
=67.4 ton
Volume Bunker :
67.4 /0.95
:71
m3
Jarak frame(a) :0,6
Lebar frame ke 61 =18 m
Volume =
BxhxaxJ
Ket J= jumblah frame
71=18x1.5x0.6xJ
J=
L=4x a=5X0.6=3 m
2. Tangki
Setlting
Jangka Waktu :24
Massa Storage = F.c x
waktu tempuh x BHP x 10-6
x 0.95 ( satuan ton)
=182x24x4640x10-6x0.95
=19.26 ton
Volume Tangki Storage : 19.26 /0.95
:20.27 m3 -> 21 m3
3. Tangki
Daily Oil tangk(service Tangk )
Jangka Waktu = 8 jam
Masa Dayli= F.c x waktu
tempuh x BHP x 10-6 x 0.95 ( satuan ton)
=182x8x4640x10-6x0.95
=6.418 ton
Volume Tangki Dayly : 19.26 /0.95
:6.755 m3 -> 7 m3
4. VStorageTank MDO = 20% x VStorageTank HFO
= 20% x 71m3
= 14,2 m3
5.
VService
Tank MDO = 60% x VStorageTank MDO
= 60% x 14,2 m3
= 8.52 m3
6. Kapasitas
Transfer Pompa
Q=Volume /Waktu Perencanaan waktu Pengisian : 30
menit
Q= 7 m3/1800s
Q= 0,003888 m3/s
7. Diameter
pipa HFO
V=
2.5 m/s
Q=VA
D=0.0445 meter
D= 44,5 mm-> 45mm
8.
Untuk diameter pipa pengisian pada Bunker
direncanakan 2 x dari pipa
service harian, yaitu = 45x 2 = 90 mm
Perhitungan Tebal Pelat Pipa :
S = So + c + b
So =
So =
= 0,18 mm
Jadi :
S = So + c + b
= 0,18 + 3 + 0
=
3,18 mm diambil 5 mm
9. Daya
pompa :
Service Pump :
(dari storage tank HFO ke Setling tank HFO)
=0.985 HP
10. Service
Pump :
(dari Setling tank HFO ke service
tank HFO)
=0.0985 HP
11. Daya
pompa :
Service Pump :
(dari storage tank HFO ke Setling tank HFO)
=0,666HP
12. Service
Pump :
(dari Setling tank HFO ke service
tank HFO)
=0,1199 HP
