ELECTRIC DISTRIBUTION PUMP CALCULATION
CLIENT
:
PT VALE INDONESIA
PROJECT
:
MINES OF BAHODOPI BLOCKS 2-3 (MBB2-3)
LOCATION
:
BAHODOPI, SULAWESI TENGAH
DOC. NO.
:
-
P&ID No.
Item No.
FG-1662BM-P-54006
Service
BA-1662BM-02A/B
REV
Transfer Water from Domestic Water Tank To Distribution
Suction (Liq. Level)
0
Discharge (Elevation) from Bottom of Pump
Max. Elev.
3940 mm
Min. Elev.
3233 mm
5000
mm
(Asumption)
500 mm
Foundation Height of Tank
HHLL : 3940 mm
--------------------------
LLL
To Distribution
: 3233 mm
--------------------------Electric Distribution Pump
(BA-1662BM-02A/B)
Domestic & Fire Water Tank
(TQ-1662BM-01/02)
Pump Nozzle Elev.
Foundation Height
200 mm
Suction pump nozzle from bottom of pump
250 mm
Discharge nozzle from bottom of pump
OPERATING CONDITIONS
450 mm
DISCHARGE CONDITIONS
Fluid Name
Temp. Min/Nor/Max
C
SGr. Min/Nor/Max
2
Water
Line Size
inch
4,00
30
Velocity
m/s
1,48
1,000
Straight Length
m
75,88
Vap. Press Max
kgf/cm2A
0,043
Eq. Length of Fittings
m
68,96
Vis. Nor. Max
cP
0,800
Friction Loss
Kgf/cm2/100m
0,20
Cap. Nor
m3/h
40
Cap. Design
m3/h
44
PUMP SUCTION CONDITION
Drum Press.
Static Head
Line Loss
Strainer Loss
Other losses
Suc. Press.
min
2
Kgf/cm G
Kgf/cm2
Kgf/cm2
Kgf/cm2
Kgf/cm2
2
Kgf/cm G
2,000
OK
Pressure Loss
(+10%)
max
0,00
0,33
0,09
0,10
0,00
0,00
0,40
0,09
0,10
0,00
0,14
0,21
DIFFERENTIAL PRESSURE
Kgf/cm2G
Disch. Pressure
kPaG
6,84
670,98
Suc. Pressure
Kgf/cm2G
kPaG
0,14
13,88
Diff. Pressure
Head
Kgf/cm2
m
kPa
6,70
657,09
67,00
a. Line
Kgf/cm2
0,30
b. Load. Rack Sys.
c. Flowmeter
Kgf/cm2
Kgf/cm2
0,00
0,20
2
0,00
1,00
0,46
4,89
6,84
Control Valve
Max. Desti. Press.
Static head
Allowable
Disch. Press.
Kgf/cm
Kgf/cm2G
Kgf/cm2G
Kgf/cm2G
Kgf/cm2G
NET POSITIVE SUCTION HEAD
Kgf/cm2A
Min Suc. Pressure
1,17
Vap. Pres.
Kgf/cm2A
0,04
Net
Kgf/cm2A
1,13
NPSHA
NPSHA(taken)
m
m
11,32
10,32
(Note 3)
(Assumption)
(Note 1)
MAX. SHUT OFF PRESSURE
Max. Suc. Drum. Press.
Kgf/cm2G
kPaG
0,00
0,00
Max. Liq. Static. Press.
Kgf/cm2
kPa
0,40
39,13
Kgf/cm2G
kPaG
0,21
20,82
Max. Suc. P + 1.2 (Diff. Pressure)
Kgf/cm2G kPaG
8,25
809,33
Max. Suc. Pressure
Shut. Off Press.
=
=
HYDRAULIC HORSEPOWER
HHP
kW
8,00
HHP= Cap. Design x SG x Head/367.1
BHP
Note:
1. The value of NPSHA (taken) is given a margin of - 1 m from NPSHA (calculated).
2. Refer to DG-1651BM-T-50026 Piping Layout at Workshop and Office Compound_RevB
3. The pump acts as a booster pump, where the destination pressure is still assumed
kW
16,00
Eff
50%
ELECTRIC DISTRIBUTION PUMP CALCULATION
Suction
Discharge
Suct
Qty
Suction's fittings
To Tank
Eq. Length, m
gate valve
2
1,83
hard T (flow turns)
2
90 deg ELL short rad.
Qty
Discharge's fittings
Eq. Length, m
gate valve
1
11,58
swing check valve
1
9,75
4
8,53
hard T (flow turns)
4
23,16
0
0,00
90 deg ELL short rad.
10
21,34
0
0,00
sudden enlargement
0
0,00
soft T (flow straight)
0
0,00
Gate valve
0
0,00
swing check valve
0
0,00
Gate valve
0
0,00
Gate valve
0
0,00
Gate valve
0
sudden enlargement
sudden constraction
d/D = 3/4
d/D = 3/4
d/D = 3/4
21,95
f calculation
Suction
Suct
Pipe 1
sch40
f1
0,005000
4,00
f2
0,004644
SG
1,000
f3
0,004662
Viscocity (cP)
0,800
f4
0,004661
f5
f6
f7
0,004661
0,004661
0,004661
Nominal Size (in)
Flow (m3/hr)
Flow (kg/hr)
Line Length (m)
Roughness
44
43824
12,00 (Note 2)
0,0457 mm
ID (mm)
102,26
Velocity
1,483
Re
189559
f
0,0047
Pressure Drop/100 m (kg/cm2)
Act. Length +25 % margin (m)
0,2044
15,00
Equiv.Length + 25% margin (m)
OK
(Max. 1.5 m/s)
OK
(Max. 0.26 kg/cm²)
27,43
Line Loss (kg/cm2)
0,0867
Total line loss (kg/cm2)
0,0867
f calculation
Discharge
Disc
Pipe 1
Line Class
Nominal Size (in)
sch40
4,00
f1
f2
0,005000
0,004644
SG
Viscocity (cP)
Flow (m3/hr)
Flow (kg/hr)
Line Length (m)
1,000
0,800
44
43824
60,70 (Note 2)
f3
f4
f5
f6
f7
0,004662
0,004661
0,004661
0,004661
0,004661
Roughness
0,0457 mm
ID (mm)
102,26
Velocity
1,483
Re
189559
f
0,0047
Pressure Drop/100 m (kg/cm2)
Act. Length +25 % margin (m)
0,2044
75,88
Equiv.Length + 25% margin (m)
68,96
Line Loss (kg/cm2)
0,2960
Total line loss (kg/cm2)
0,2960
0,00
55,17
PRESSURE DROP PER 100 m CALCULATION
Line Class
0,91
OK
(Max. 4.5 m/s)
OK
(Max. 0.91 kg/cm²)