HomeMy WebLinkAboutLIFT STATION DATA ENTRYn
Lift Station Data Entry (Existing Connecting Pressure)
Project: PSL Shoppes
Engineer: RJK
Reg. No. 56218
Date: 3/1/2017 SCANNED
ESTIMATED FLOWS BY
St. Lucie County
Company: EDC, Inc.
Calc'd By: JRH
Checked By: RJK
shment
UNITS
ERC Factor
0.0005
ERCs
9.86
GPD
2,464
IShopping Center (per s.f.) 19,713.00
I Restaurants (per seat)
50.00
0.1882
9.41
2,353
Donuts(per seat)
15.00
0,0941
1.41
353
Flows (gas station 3.8 ERC's / Chiropractor = 1 ERC)
n/a
n/a
4.80
1,200
0.00
0.0000
0.00
-
0.00
0.0000
0.00
-
-r (Not Listed): _ _ _ _ _ _
__ 0.00 _
0.0000
0.00
-
Total
25AB
6,370
Average Daily Flow:
GPD
6,370.00
Maximum Daily Flow:
ADF (GPM)
7.50
Peak Hourly Flow:
ADF (GPM)
7.50
Station Design
Wet -well Rim Elevation
Discharge Elevation
Influent Elevation
Alarm Elevation
Lag Pump On Elevation
Lead Pump On Elevation
Pump Off Elevation
Wet -well Invert Elevation
Inside Diameter of Wet -Well
Wet -Well Wall Thickness
Top Slab Thickness
Bottom Slab Thickness
Bottom Slab Extension
Force Main Design
Hours of Operation
ADF (GPM)
7.08
15.00
For lift station design use 7.50
Peaking Factor
MDF (GPM)
MDF/GPD
4.0
30.00
43,200.00
ADF
111yyy
Peak Hourly Fact •
0-100,000
4.0 L
E
100,000- 250,250,000
.5
3.5
250,000- 1,000.000
3.0
> 1.000,000
2.5 /"7 d 'y
l�
Peaking Factor
PHF (GPM)
.PHFIGPD
43,200.00
4.0
30.00
17.75 NAVD
14.75 NAVD Model Myers WG50H
10.00 NAVD HP 5
9.00 NAVD Impeller 5.50 inch
8.50 NAVD Voltage
7.75 NAVD Phase 3
6.76 NAVD RPM 3450
3.75 NAVD Shutoff Head 120
5.00 ft
0.00 ft �� HA
0.00 it
2.00 it4.00 it
�•�� �' •E,j1�/S sO �� D//L/
i
Diameter Length
[ST
3.0.0 0 500.00 � ATE OF !Q' �
8.00 0.00 ���• iC '(v���
10.00 0.00
Page 1 of 9
l
Total Dynamic Head
Dynamic Head Conditions:
Receiving Force Main - psi to feet conversion: 19.00 psi 43,85 ft
Static Lift Pump Off Elev. 6.75 NAVD Force Main Elev. = 15:17 NAVD 8.42 ft
Total Static Head 52.27 ft
Force Main Minor Losses:
Fitting Loss in feet varies With velocity.
fitting loss
number
"k'value
No. x k
entrance/exit
-.-2---1
1.00
2.00
90' Bend
-4 10.80
3.20
45° Elbow
0_- _A
0.20
0.00
Tee - Straight
11.-.-0 a
0.35
0.00
Tee - Branch
=._ 1-- l
1.28
1.28
PlugValve
1=.:.
0.77
0.00
Gate Valve
,_ 2:._:
0.30
0.60
Swing Valve_
_2. _
2.50
5.00
Total(K)= 12.08
Flow Increment=l0.----
Force Main Friction Loss Formula: Hp=10.44L(Q- 1.85)/(C^ 1.8513^ 4.8655) PVC Pipe Friction Factor - C = IiI20,
Station Pumping
Flow Flow Velocity Pipe Loss (hp) Minor Loss (hr) Total Static Head Loss TDH Head
I .IL
11111111111
I
1
...1.
_�1��1��1111
1
,. ,.�i1111'�r�.■l11,1.
_�111®111111111
11111
1
�t���r�11111_I_II.11
.. „III
i®!-1
-
�,„
111111111111111
1111111111111111
„
11111111111111
111111
I
1
1
,„
1
IIIIIII
11111111IIII
II
Conclusion:
The Myers WG50H w/ 6.60 inch Impeller will develop !87 GPM @ - =74 TDH
Page 2 of 9
I
Operating Range
Current Operating Parameters
- Pump Rate
ADF
Optimum Cycle Time
[GPM]
[GPM]
[Min]
86.52
7.50
30.0
Wet -well Volume Per Foot
Wet -well Diameter
Formula
Gal./Foot
5.00
Vol = Diam' x: x 7.4805 gal
146.88
4 jr'
Optimum Operating Range Lead Pump
(Based an optimum Cycle Time)
Optimum Volume
Gal./Foot
Optimum Operating Range
[Gal]
205.50
146.88
1.40 Feet
Current lift station design: 1.00 Feet
146.88 Gallons
Cycle/Run/Starts:
ADF (GPM) = 7.50
ADF CY. T. = Vol/(Pump Rate-ADF) + Vol/ADF
21.44
Min.
ADF Run T. = Vol/(Pump Rate-ADF)
1.86
Min.
ADF Starts Per Hour = Formula = 60/CY.T
2.80
Starts
MDF (GPM) = 30.00
MDF CY. T. = VoV(Pump Rate-MDF) + Vol/MDF
7.49
Min.
MDF Run T. = VoV(Pump Rate-MDF)
2.60
Min.
MDF Starts Per Hour= Formula = 60/CY.T
8.01
Starts
PHF (GPM) = 30.00
PHF CY. T. = VoV(Pump Rate-PHF) + Vol/PHF
7.49
Min.
PHF Run T. = Vol/(Pump Rate-PHF)
2.60
Min.
PHF Starts Per Hour = Formula = 60/CY.T
8.01
Starts
Page 3 of 9
n
Floatation Calculations
Top of wet -well elevation (Tw)
17.75 NAVD
Bottom of wet -well elevation (Bw)
3.75 NAVD
• Wet -well diameter (d)
5.00 it
Wet -well wall thickness (tw)
0.00 it
Top slab thickness (ts)
0.00 it
Top slab opening (op)
6.00 ft"2
Bottom slab thickness (t)
2.00 it
Bottom slab diameter (Dabs)
13.00 it
Density of concrete (dc)
150
Density of water (dw)
62.4 Ib/ft^3
Volume of Displaced, Vd assume water table is at top of wet -well as a safety factor
Vd = Vw+ Vs
Vw = (Tw-Bw) x (pi x ((d/2 + tw)A 2)
Vs=txw2
Weight Displaced, Wd
Wd=Vdxdw
Buoyant Force, Fb
Fb = Wd
Weight of Wet -well, Wt
Wt = Wts + Wwalls + Wslab
Wts = is x ((pi x ((d/2 +tw)A2)) - (op)) x do
Wwalls = (((Tw - is) - Bw) x ((pi x ((d/2 +tw)A2)) - (pi x ((d/2)A2))) x do
Wslab = t x (pIQ'(Dbs/2)A2) x do
Conclusion: Since Wt is greater than Flo, the Wet -
well will not float.
Safety Factor = Wt / Fb
Vw =
275 ftA3
Vs =
265 ftA3
Vd =
540 ftA3
Wd= 33,718 lb.
Fb = 33,718 lb. Upward
Wts=
- lb.
Ww=
- Ib.
Ws=
39.820 lb.
Wt= 39,820 lb. Downward
Safety Factor
Page 4 of 9
Lift Station Data Entry (Future Connecting Pressure)
Project: PSL Shoppes
Engineer: RJK
Reg. No. 56218
Date: 3/1/2017
ESTIMATED FLOWS
Establishment
Dunkin Donuts (per mat)
Offsite Flours (gas station = 3.8 ERC's / Chiropractor = 1 ERC) ,
Other (Not Listed):
Average Daily Flow:
GPD Hours of Operation
6,370.00 1 15.00
Maximum Daily Flow:
ADF (GPM)
7.50
Peak Hourly Flow:
ADF (GPM)
7.50
Station Design
Wet -well Rim Elevation
Discharge Elevation
Influent Elevation
Alarm Elevation
Lag Pump On Elevation
Lead Pump On Elevation
Pump Off Elevation
Wet -well Invert Elevation
Inside Diameter of Wet -Well
Wet -Well Wall Thickness
Top Slab Thickness
Bottom Slab Thickness
Bottom Slab Extension
Force Main Design
Peaking Factor
4.0
ADF (and)
0-100,000
100.000 - 250,000
250.000 - 1,000,000
> 1.000,000
Peaking Factor
4.0
17.75 NAVD
14.75 NAVD
10.00 NAVD
9.00 NAVD
8.50 NAVD
7.75 NAVD
6.75 NAVD
3.75 NAVD
5.00 ft
0.00 ft
0.00 ft
2.00 It
4.00 ft
Diameter
Length
]in]
(ft]
3.00
500.00
8.00
0.00
10.00.
0.00
Company: EDC, Inc.
Calc'd By: JRH
Checked By: RJK
UNITS
ERC Factor
ERCs
GPD
1,713.00
0.0005
9.86
2,464
50.00
0.1882
9.41
2,353
15.00
0.0941
1.41
353
n/a
n/a
4.80
1,200
0.00
0.0000
0.00
-
0.00
0.0000
0.00
-
Peak Hourly Factor
Page 5 of 9
4.0
3.5
3.0
2.5
Head
6,370
ADF (GPM)
7.08
For lift station design use 7:50
MDF (GPM) MDF/GPD
30.00 43,200.00
PHF(GPM) PHF/GPD
43,200.00
30.00
WG50H
3
3450
Total Dynamic Head
Dynamic Head Conditions:
Receiving Force Main - psi to feet conversion: 25.00 psi - 57.69 it
Static Lift Pump Off Elev. 6.75 NAVD Force Main Elev. _ 15:17 NAVD 8.42 it
Total Static Head 66.11 it
Force Main Minor Losses:
Fitting Loss in feet varies with velocity.
fitting loss
number
"k" value
No. x k
entrancelexit
2 -i
1.00
2.00
90° Bend
4 i
0.80
3.20
45' Elbow
0
0.20
0.00
Tee - Straight
-0
0.35
0.00
Tee -Branch
t -
1.28
1.28
Plug Valve
1
r'
0.77
0.00
Gate Valve
_2 --
0.30
0.60
Swing Valve
-. 2 _...
2.50
5.00
I Oral kK)= 1Z.Ud
Flow Increment = 10_:: _.
Force Main Friction Loss Formula: Hp =1D.44L(Q^ 1.85)I(C^ 1.85D^ 4.8655) PVC Pipe Friction Factor- C = 1120 s
Station Pumping
Flow Flow Velocity Pipe Loss (hp) Minor Loss (hj) Total Static Head Loss TDH Head
..1�1111111111;1111111111111111111111111111111
Illll��®t���■.1�1',1111111111111®111111111111
.. „
„
Illllllllllllllllll�llill®®��■.!��1;!�Iwlll
iii1�111�11111111111111111111
11111111111111111111111111111111111111111
..,111111111111111111111111111111111111111111111
111111111111111111111111111111111111111111111
Jill 111,1111V111111.2
Conclusion:
The Myers WG50H w/ 5.50 inch Impeller will develop 74 GPM @ 83 TDH
Page 6 of 9
Operating Range
Current Operating Parameters
Pump Rate
ADF
Optimum Cycle Time
[GPM]
[GPM]
[Min]
73.84
7.50
C 300:
Wet -well Volume Per Foot
Wet -well Diameter
Formula
Gal./Foot
5.00
Vol = Diarn x rz x 7.4805 gal
146.88
a Jk3
Optimum Operating Range Lead Pump
(Based on optimum Cycle Time)
Optimum Volume
Gal./Foot
Optimum Operating Range
[Gal]
202.15
146.88
1.38 Feet
Current lift station design: 1.00 Feet
Cycle/Run/Starts:
ADF (GPM) =
MDF (GPM) =
PHF (GPM)=
146.88 Gallons
7.50 ADF CY. T. = Voll(Pump Rate-ADF) + VoVADF
21.80
Min.
ADF Run T. = VoV(Pump Rate-ADF)
2.21
Min.
ADF Starts Per Hour = Formula = 60/CY.T
2.75
Starts
30.00 MDF CY. T. = Vol/(Pump Rate-MDF) + VoVMDF
8.25
Min.
MDF Run T. = VoV(Pump Rate-MDF)
3.35
Min.
MDF Starts Per Hour = Formula = 60/CY.T
7.28
Starts
30.00 PHF CY. T. = Vol/(Pump Rate-PHF) + VoVPHF
8.25
Min.
PHF Run T. = Vol/(Pump Rate-PHF)
3.35
Min.
PHF Starts Per Hour = Formula = 60/CY.T
7.28
Starts
Page 7 of 9
Top of wet -well elevation (Tw)
Bottom of wet -well elevation (Bw)
Wet -well diameter (d)
Wet -well wall thickness (tw)
Top slab thickness (ts)
Top slab opening (op)
Bottom slab thickness (t)
Bottom slab diameter (Dabs)
Density of concrete (dc)
Density of water (dw)
Volume of Displaced, Vd
Vd = Vw+ Vs
VW = (TW-Bw) x (pi x ((d/2 + tw)^ 2)
Vs=txw2
Floatation Calculations
17.75 NAVD
3.75 NAVD
5.00 ft
0.00 ft
0.00 It
6.00 ft^2
2.00 It
13.00 It
150
62.4 Ib/ft^3
assume water table is at top of wet -well as a safety factor
Weight Displaced, Wd
Wd=Vdxdw
Buoyant Force, Fb
Fb = Wd
Weight of Wet -well, Wt
Wt = Wts + Wwalls + Wslab
Wts = is x ((pi x ((d/2 +tw)"2)) - (op)) x do
Wwalls = (((Tw- ts) - Bw) x ((pi x ((d/2 +tw)"2)) - (pi x ((d/2)"2))) x do
Wslab = t x (pio *(Dbs/2)-2) x do
Conclusion: Since Wt is greater than Fb, the wet -
well will not float.
Safety Factor = Wt I Fb
Page 8 of 9
Vw=
275 ft-3
Vs =
265 ft^3
Vd=
540 ft"3
Wd = 33,718 lb.
Fb = 33,718 lb. Upward
Wts= - lb.
Ww= - lb.
Ws= 39.820 lb.
Wt= 39,820 lb. Downward
Safety Factor =
Combined Pump and System Curves