Erhart Farm - Lift Station CalculationsErhart Farm
Alliant Project No. 200090
Lift Station Calculations
Chanhassen, MN
E N G I N E E R I N G
Flow:
ALLIANT
E N G I N E E R I N G
Project Name: Erhart Farm
Project Number: Alliant Project No: 200090
Average Daily Flow = 79,100 gpd = 54.931 gpm « (ADF = 226 homes x 350 gpd)
Peak Factor = 4.0
Peak Flow = 316,400 gpd = 219.722 gpm
Equivalent Pipe Length:
Forcemain Size = 4 inch
Length to connection = 5041.8 ft
Total Design Length = 5219.4 ft
Wetwell Design:
Starts per hour =
Volume Required =
Diameter of Wetwell =
Cross -sectional area =
Storage Depth Required =
Wetwell Elevations:
Fittina Tvoe Number of Eauiv. Lenath Total F_a_ I ana(•h
45
23
5.04
115.92
90
1
20.2
20.2
TEE (RUN)
5
8.3
41.5
TEE (900 TURN)
0
20.2
0
GATE VALVE
0
2.35
0
CHECK VALVE
0
28
0
ANGLE VALVE
0
56
0
GLOBE VALVE
0
112
0
Total Additional Equivalent Length = 177.62
6
10 minute cycle time
Formulas:
54.931 gpm
219.722 gpm
Cycle Time: t = V/(Qd-Qi) + V/Qi
411.98 gallons = 55.08 cubic feet Therefore, Volume: Volume = t*Qi*(Qd-Qi) / Qd
8 ft
50.27 square feet Cross -sectional Area: pi * r12
1.10 ft Depth Required: cubic feet/cross-sectional area
Top of Wetwell Elevation = 896.90 ft
Invert of incoming pipe = 866.17 ft
Storage Depth Provided = 1.25 ft
Check Cycle Time:
Fill
Time:
8.56
minutes =
Max Run
Time:
2.85
minutes =
Alarm on:
865.67
ft
Lag pump on:
864.42
ft
Lead pump on:
863.17
ft
Pumps off:
861.92
ft
Bottom of Wetwell:
859.92
ft
Total Depth of Wetwell: 36.98 ft
Provided Storage / Qi
Provided Storage / (Qd - Qi)
Cycle Time: 11.41 minutes Below 30 minute septic time limit. Therefore acceptable.
ALLIANT
E N G I N E E R I N G
Project Name: Erhart Farm
Project Number: Alliant Project No: 200090
Frictional Loss:
Hazen Williams "C" Value: 120.0
FIOW In ODm FM PinP..S'i7_P. Total Fn I annth I Init Frirtinn Total Frin+innal I nee
180
4
5219.37
0.026
137.856
190
4
5219.37
0.029
152,358
200
4
5219.37
0.032
167,524
210
4
5219.37
0.035
183.349
220
4
5219.37
0.038
199.827
Static Head:
Existing Grade =
896.40
ft
(Top of wetwell - 0.5 feet)
Elevation of FM =
889.40
ft
(7 foot deep)
Bottom of Wetwell =
859.92
ft
(Top of wetwell - depth of wetwell)
FM Highest Elevation =
921.33
ft
Static Head =
61.41
ft
(FM elevation - bottom of wetwell to high point on route)
Total Dynamic Head:
Connection Head
Flow in aom StaflC Head CCnnertinn Haad Frirtinn Haan Total nvnamirt Haan \/clnni+v in inn
180
61.41
0
137.856
199.3
4.60
210
61.41
0
152.358
213.8
5.36
240
61.41
0
167.524
228.9
6.13
270
61.41
0
183.349
244.8
6.89
320
61.41
0
199,827
261.2
8.17
Bouvancv: (Assume GW 0.5' below surface)
Input Parameters:
Formulas:
Density of Concrete = 150.0 Ibs/cf Boyancy upward Force = Area x Depth below water table x Density of water
Density of Soil = 100.0 Ibs/cf
Density of Water = 62.4 Ibs/cf Downward Force = Structure weight + concrete slab
Structure Wall Thickness = 0.75 ft
Water Table Elevation = 896.40 ft
Diameter of Wetwell = 8.0 ft
Depth of Wetwell = 37.0 ft
Force Balance Calculations:
Upward Force = 163,564 Ibs
Structure Downward Force = 104,558 Ibs
Concrete Slab Thickness Needed = 6.18 ft (assume slab is 1 foot larger in diamter than wetwell)
Cubic Yards of Concrete Needed = 14.57 cy
SULZER
XFP101 G VA 60HZ (wet pit/dry pit)
Testnorm
H / ft Head aP 'Ps' IS09906:2012,HI 11.6/14.6 Gr2B
260 110
239,6 103.7
220
200 90
180 80
160 70
140 60
120 50
100
40
80
30
60
40 20
37.31
30
20
OV.
tOf IOX
33.38 30.93
20 20
10 10
0 0
NPSH / ft
2.572
1
0
0 40 80 120 160 206.8 240 Q / US g.p.m.
2021-12-13
PE300/2_G-60H2
_ g
Al
t Application range ►
Shaft power P2
Hydraulic efficiency
Leff' '
NPSH-values
Operating data specification Power input 40,3 hp
Flow 206,8 US g.p.m. Head 240 ft
Efficiency 3314 % Rated power 37,3 hp
NPSH 2,57 ft Fluid Wastewater
Temperature 68 OF Nature of system Single head pump
No. of pumps 1
Pump data
Type XFP101 G VX 60HZ (wet pit/dry pit) Make SULZER
Series XFP PE1-PE3 Impeller Vortex impeller
N° of vanes 6 Impeller size 91/3inch
Free passage 2,52 inch Suction flange DN100
Discharge flange DN100 Type of installation
Moment of inertia 03717 lb ft2 Not chosen
Motor data
Rated voltage 230 V Frequency 60 Hz
Rated power P2 40,2 hp Nominal Speed 3540 rpm
Number of poles 2 Efficiency 92,4
Power factor 0189 Rated current 9116 A
Starting current 744 A Rated torque 5917 Ibf ft
Starting torque 161 Ibf ft Degree of protection IP 68
Insulation class H No. starts per hour 15
Sulzer reserves SpaixO 4, Version 4.3.12 - 2020/05/28 (Build 328)
Data version Aug 2020
the
right to change
any
data and dimensions without
prior notice
and can not be
held
responsible for
the
use of information contained
in this software.
Curve number
Pump performance curves SULZER
Reference curve
XFP101G VX 60HZ XFP101 G VX 60HZ (wet pit/dry pit)
Discharge Frequency
DN100 60 Hz
Density Viscosity Testnorm Rated speed Date
62,32 Ib/ft3 1,077E-5 Os IS09906:2012,Hl 11.6/14.6 Gr2B 3544 rpm 2021-12-13
Flow Head Shaft power Power input Rated power P2 Hydraulic efficiency NPSH
206,8 US g.p.m 240 ft 37,3 hp 40,3 hp 40,2 hp 3314 % 2,57 ft
H/ft
FHead
3
Sulzer reserves
the
right to change
any
data and dimensions without
prior notice
Spaix® 4, Version
4.3.12 -
2020/05/28 (Build 328)
and can not be
held
responsible for
the
use of Information contained
in this software.
Data
version
Aug 2020
Frequency PE3
60 Hz
Motor
performance
curve
SULZER
PE300/2-&60HZ
Rated power
rService
factor
Nominal Speed
Number of poles
Rated Voltage
Date
40,2 hp
3
3540 rpm
2
230 V
2021-12-13
0 10 20
30 40 50 60 70 80
90 100 110
120 P2/P2n l%
n / rpm
92,74
%
-
cos tp
P, / hp
4800
_ -
n
4600
I/In
1,3
52
4400
S
P
1,25
50
4200
-
M/Mn
112
48
n
1,15
46
4000
1,1
44
3800
1,05
42
3544
1
40.26
0% 25% 50% 75 %
3400
100%
125%
0,95
38
3200
-
_
--
--
36
0.886
3000
34
2800
008
32
2600
- ---
--. -
0,75
30
0,7
28
2400
0165
=26
2200
_
096
24
2000
0,55
22
1800
-
005
20
1600
--
-- -
-
0145
18
1400
- - -- -
0,4
16
1200
-
0,35
14
1000
-
-_
013
12
800
0,25
10
0,2
8
600
0,15
6
400
0,1
4
200
0,05
2
0
0
0
0 4 8
12 16 20 24 28 32
37.31 40 44 48 52
P, / hp
Symbol
No loac
25 %
50 %
75 %
100 %
125 %
P2 / hp
0
10,06
20,12
30,17
40,23
50129
Pi/hp
81425
14573
22,86
32559
43,53
55,16
n / %
0
68,27
88,01
92,57
92,41
91,17
n/rpm
360C
3589
3574
3557
3538
3517
cos (p
0,538E
017
01805
01865
0189
018884
I / A
29,28
3914
53,15
70153
91,56
11612
s / %
0
013066
0172
11197
1,721
21306
M / IV ft
0
14372
29,56
44,56
59,72
7511
Tolerance according
to VDE 0530 T1
12.84 for rated power
Starting current
Starting torque
Moment of
inertia
No.
starts per hour
744 A
161 Ibf ft
2 558 lb ft2
15
Sulzer reserves Spaix® 4, Version 4.3.12 - 2020/05/28 (Build 328
Data version Aug 2020
the
right to change
any
data and dimensions without
prior notice
and can not be
held
responsible for
the
use of Information contained
in this software.