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HomeMy WebLinkAboutHighgate Community Sewer Lift Station CalcsHighgate Community - PRELIMINARY DESIGN - 4-22-19.xlsx PROJECT INFO PACKAGE/STARTUP Job Name:Offering: Company:Mechanical: Contact:Pumps: Job Type:Control Panel: Water Type/Source:Generator: Import/Domestic:Advisor/Startup: FLOW RATE Peak Inflow:450 GPM 353.50Pumping Rate:549 GPM (of single pump)Static Head:29.7 Feet 353.50TDH:49.5 FeetTDH Calcs:RU Calcs ACTIVE VOLUMEMax Pump Starts:8.00 Starts/HrCycle Time:7.50 Minutes 349.00 Active Volume:1029.38 Gallons Active Volume:137.61 Cu Feet Well Shape:Round Well Diameter:8 Feet Well Dimensions:N/A N/A Cross-Section Area:50.27 Sq Feet Min. Depth Required:2.74 Feet Active Depth:2.80 Feet STORAGE VOLUME (if required) Time:Minutes 326.00 Flow Rate:GPM 323.10 Volume:0.00 Gallons Volume:0.00 Cu. Feet Min. Depth Required:0.00 Feet 322.60 Storage Depth:Feet 320.30 ON-SITE POWER Power: FORCE MAIN FM Info:New Single FM 314.50 Length:474.44 Feet FM Discharge:347.31 Feet 313.33 FM High Point:349.00 Feet (1)(2) Nominal ID:6" Type/Rating: INFLUENT PIPING (1)(2) Influent Invert:326 Influent Size:10"Type:PVC (IPS) Mechanical & Electrical Complete System All by Romtec Utilities By Romtec Utilities By Romtec Utilities By Romtec UtilitiesWastewater (Sewage) New Station Blaine Neptune McIntosh Highgate Community Import Acceptable C900 CL 150 480V / 3-Phase DESIGN CRITERIA Note: Image is a preliminary representation of the pumping system. Elevations shown are the primary factors used for sizing the wet well. Backup levels not shown. Additional (or fewer) level settings may be required. BACKUP PUMPS START BACKUP PUMPS STOP BACKUP HL ALARM HIGH LEVEL ALARM NON PRE-RO PUMP START PRE-RO PUMP START NON PRE-RO PUMP STOP PRE-RO PUMP STOP 322.85 322.10 319.30 315.50 PROJECT INFORMATION Job Name: Date:3/6/2019 ELEVATIONS Unit CONSTANTS DescriptionFM High Point Elev:349.00 ft k 1.318 Configures calculations for Imperial units. Lead Stop Elev:315.50 ft GPM/CFS 448.831 Flow conversion factor. g 32.174 Gravitational Acceleration PUMPING RATE*Unit 2g 64.348 2x Gravity Total Pumping Rate:545 GPM *Estimated operating point on curve.Pumps on Duty:1 qty SYSTEM PIPE INFO Wet Well Valve Vault Force Main Unit Description Length:40 15 474.44 ft Length of this section of pipe Material:Stainless Ductile Iron PVC name Pipe MaterialClass/Rating:SCH 40 Class 53 C900 DR18 name Pipe Class and/or Rating C Factor (Old):100 110 130 none Smoothness Coefficient, Hazen-Williams Nominal ID:6 6 6 in Nominal Pipe Size True ID:6.065 6.22 6.08 in Actual inside diameter of pipe True ID:0.505 0.518 0.507 ft Actual inside diameter of pipeSectional Area:0.201 0.211 0.202 sqft Cross sectional area of pipe Flow Rate:545 545 545 GPM Flow rate through this section of pipe Flow Rate:1.214 1.214 1.214 CFS Flow rate through this section of pipe Velocity:6.1 5.8 6.0 ft/s Flow velocity in this section of pipe MAJOR LOSS Wet Well Valve Vault Force Main Unit Hydraulic Diameter:0.126 0.130 0.127 ft Pipe ID divided by 4, used by Hazen-Williams formula V/kC:0.0459 0.0397 0.0351 none Friction coefficient used by Hazen-Williams formula Major Head Loss:1.49 0.41 10.72 ft H2O Head loss due to frictional forces in the pipe FITTINGS Wet Well Valve Vault Force Main K Value Discharge Elbow:1 0.5 Elbow, 45deg:7 0.15 Elbow, 90deg:1 1 0.3Tee:1 0.6 Shut Off Valve:1 1 Check Valve:1 1.5 Outlet:1 1 Reducer:0.5 Total K:0.8 3.4 2.05 none Head loss coefficient used in minor loss formula Minor Head Loss:0.46 1.75 1.16 ft H2O Head loss due to fittings in the pipe CALCULATED DUTY POINT (PER PUMP)Total Major Loss:12.62 ft H2O Total Minor Loss:3.36 ft H2O Static Head Loss:33.50 ft H2O Pumping Rate:545 GPM Total Head Loss:49.48 ft H2O Note: Grey cells contain formulas. Do not edit. HIGHGATE COMMUNITY Note on Hazen-Williams: H.W. is an empirical approximation of head loss in piping systems where the flow of tepid water is below ~15 ft/s. While not as accurate as scientific formulas for determining head loss, H.W. is much less complex and adequately accurate for civil engineering purposes. Hazen-Williams Equation: V = k C R.63 S.54 Where V is the flow velocity, k is a unit conversion factor, C is a smoothness coefficient, R is the hydraulic radius, and S is the head loss per length of pipe. This calculation sheet uses this formula, solving for head loss. Minor head loss equation: hm = K V2 / 2g Comment 3. Additionally, with the proposed volume per cycle of about 1125 gallons and a proposed flowrate of 450 gpm the cycle would complete in about 3 minutes.Yes, assuming that the inflow filled the wet well to the pump start point and then inflow stopped, the pumps would run for about 3 minutes. Note: Continuous or near continuous inflow at some level at or below the peak inflow rate is assumed for this wet well, meaning that the situation described above is highly unlikely.In other words, water will continue to flow into the wet well while the pumps are running, meaning that they will generally run longer than 3 minutes. Note: The 7.5 minute cycle time is the time calculated between pump starts. This includes the time it takes to pump down the wet well (while inflow continues) to the shut off point, and then for the wet well to fill back up to the pump start point. Special Note: The calculated cycle time of 7.5 minutes is based on a continuous inflow of 225 gpm while the pump is running. The worst case scenario is exactly half of the peak inflow (225 being half of 450) because it results in the maximum number of starts per hour (pumps shutting on and off which creates heat in the motors). SYSTEM PIPING JOB NAME: DATE: ELEVATIONS: New Pipe Old Pipe Point at valve vault:349.00 Water @ Start Water @ Stop NON Pre Ro Start:322.10 Pump Flow:545.0 545.0 PRE RO Lead Stop:315.50 Static Head:26.90 33.50 ft Total Flow:545 gpm TDH:39.7 49.5 ft Duty Pumps:1 Est. Efficiency:50% Total Pumps:2 Est. HP:10.9 13.6 HP PIPE MATERIAL AND SIZE Wet Well Valve Vault Meter Vault FM1 FM2 FM3 Length:40 15 474.44 Material:Stainless Ductile Iron PVC Class:SCH 40 Class 53 C900 DR18 Nom. ID:6" 6" 6" True ID:6.065 6.220 6.080 New C:130 130 150 Old C:100 110 130 Section GPM:545.0 545.0 545.0 V (ft/s):6.05 5.75 6.02 PIPE FITTINGS Wet Well Valve Vault Meter Vault FM1 FM2 FM3 Disch Ell:1 45 Ell:7 90 Ell:11 Tee:1 Valve:1 Check:1 Outlet:1 Other (K=.5): Total K 0.8 3.4 0.0 2.1 0.0 0.0 FRICTION LOSSES Wet Well Valve Vault Meter Vault FM1 FM2 FM3 Major Loss_New:0.92 0.30 8.23 Major Loss_Old:1.49 0.41 10.72 Minor Loss:0.46 1.75 1.16 Total Friction Loss New:12.81 Total Friction Loss Old:15.98 Highgate Community 3/6/19 0. 0 20 . 0 40 . 0 60 . 0 80 . 0 10 0 . 0 12 0 . 0 0 2 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0 1 2 0 0 H e a d   ( f t ) Fl o w   ( g p m   p e r   p u m p ) Pu m p   D u t y   P o i n t s E5 K ‐ L Si n g l e   P u m p Tw o   P u m p s No   C u r v e Co n d i t i o n   A Re q u i r e d   D u t y   P o i n t Co n d i t i o n   A :   S i n g l e   p u m p . N e w   P i p e .   W a t e r   l e v e l   a t   L e a d   S t a r t .   T hi s   a s s u m e s   t h e   l o w e s t   T D H   a   p u m p   m a y   s e e . No t e :   T h e   i n t e r s e c t i o n   o f   t h e   p u m p   c u r v e   a n d   a   s y s t e m   c u r v e   d e t er m i n e s   w h e r e   e a c h   i n d i v i d u a l   p u m p   w i l l   o p e r a t e . 0. 0 20 . 0 40 . 0 60 . 0 80 . 0 10 0 . 0 12 0 . 0 0 2 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0 1 2 0 0 1 4 0 0 1 6 0 0 H e a d   ( f t ) Fl o w   ( g p m   s y s t e m   t o t a l ) Sy s t e m   D u t y   P o i n t s E5 K ‐ L Tw o   P u m p s No   C u r v e Si m p l e x   S y s t e m Du p l e x   S y s t e m No   C u r v e Required Duty Point No t e :   T h i s   c h a r t   s h o w s   t h e   t o t a l   s y s t e m f l o w   r a t e   w h e n   m u l t i p l e   pu m p s   a r e   r u n n i n g .   P u m p   r a t e   i s   f o u n d   w h e r e   t h e   m a t c h i n g   c o l o r e d curves  in t e r s e c t .   F o r   e x a m p l e ,   B l u e   a n d   d a s h e d   B l u e   f o r   t w o   p u m p s   i n   o pe r a t i o n . Fl o w : 5 4 5 TD H : 5 0 Lo w   W a t e r : 3 1 5 On e   P u m p   R u n n i n g St a t i o n   1 S t a t i o n   2 D e s c r i p t i o n Le n g t h (f t ) Pip e   I D (i n ) Flo w (g p m ) Fl o w (c f s ) Ve l o c i t y (fp s ) Ve l o c i t y   He a d (f t ) C HW Sl o p e (f t / f t ) Hf Fr i c t i o n   L o s s (ft ) Km ,   M i s c .   Lo s s   C o e f f . Hm , Mi s c .   L o s s (f t ) HG L St a r t HGL EndGround Elev.Pressure at Ground 0+ 0 0 0 + 0 0 P u m p   S u c t i o n 5 4 5 1 . 2 1 31 5 3 1 5 . 0 0 0 3 5 3 . 5 ‐ 1 6 . 6 9 1 0+ 0 0 0 + 0 0 P u m p   L i f t 5 4 5 1 . 2 1 31 5 . 0 0 0 3 6 5 . 0 0 0 3 5 3 . 5 4 . 9 8 6 0+ 0 0 0 + 0 0 D i s c h a r g e   E l b o w 6 . 0 6 5 5 4 5 1 . 2 1 6 . 0 5 0 . 5 7 1 0 0 0 . 0 3 7 0 . 0 0 0 0 . 5 0 . 2 8 5 3 6 5 . 0 0 0 3 6 4 . 7 1 5 3 5 3 . 5 4 . 8 6 2 0+ 0 0 0 + 4 0 V e r t i c a l   P i p i n g 4 0 6 . 0 6 5 5 4 5 1 . 2 1 6 . 0 5 0 . 5 7 1 0 0 0 . 0 3 7 1 . 4 8 7 0 0 . 0 0 0 3 6 4 . 7 1 5 3 6 3 . 2 2 8 3 5 3 . 5 4 . 2 1 7 0+ 4 0 0 + 4 0 E l b o w   ( 9 0 d e g )   i n   W W 6 . 0 6 5 5 4 5 1 . 2 1 6 . 0 5 0 . 5 7 1 0 0 0 . 0 3 7 0 . 0 0 0 0 . 3 0. 1 7 1 3 6 3 . 2 2 8 3 6 3 . 0 5 7 3 5 3 . 5 4 . 1 4 3 0+ 4 0 0 + 5 0 H o r i z o n t a l   P i p i n g 1 0 6 . 0 6 5 5 4 5 1 . 2 1 6 . 0 5 0 . 5 7 1 0 0 0 . 0 3 7 0 . 3 7 2 0 0 . 00 0 3 6 3 . 0 5 7 3 6 2 . 6 8 5 3 5 3 . 5 3 . 9 8 2 0+ 5 0 0 + 5 0 C h e c k   a n d   P l u g   V a l v e s 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 2 .5 1 . 2 8 7 3 6 2 . 6 8 5 3 6 1 . 3 9 9 3 5 3 . 5 3 . 4 2 4 0+ 5 0 0 + 5 8 P i p i n g   t o   M a n i f o l d 8 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 2 6 3 0 0 . 00 0 3 6 1 . 3 9 9 3 6 1 . 1 3 6 3 5 3 . 5 3 . 3 1 0 0+ 5 8 0 + 6 2 F o r c e   M a i n ,   P 1 3 . 6 9 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 0 . 0 8 3 1 0 . 5 64 3 6 1 . 1 3 6 3 6 0 . 4 8 9 3 5 3 . 5 3 . 0 3 0 0+ 6 2 0 + 6 2 E l b o w   ( 4 5 d e g ) 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 0 . 1 5 0 . 0 7 7 36 0 . 4 8 9 3 6 0 . 4 1 1 3 5 3 . 5 2 . 9 9 6 0+ 6 2 0 + 6 8 F o r c e   M a i n ,   P 2 5 . 9 1 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 0 . 1 3 4 0 . 0 0 0 3 6 0 . 4 1 1 3 6 0 . 2 7 8 3 5 3 . 5 2 . 9 3 8 0+ 6 8 0 + 6 8 E l b o w   ( 4 5 d e g ) 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 0 . 1 5 0 . 0 7 7 36 0 . 2 7 8 3 6 0 . 2 0 1 3 5 3 . 5 2 . 9 0 5 0+ 6 8 0 + 8 2 F o r c e   M a i n ,   P 3 1 4 . 2 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 0 . 3 2 1 0 . 0 0 0 3 6 0 . 2 0 1 3 5 9 . 8 8 0 3 5 3 . 5 2 . 7 6 6 0+ 8 2 0 + 8 2 E l b o w   ( 4 5 d e g ) 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 0 . 1 5 0 . 0 7 7 35 9 . 8 8 0 3 5 9 . 8 0 2 3 5 3 . 5 2 . 7 3 2 0+ 8 2 1 + 4 3 F o r c e   M a i n ,   P 4 6 1 . 1 5 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 1 . 3 8 2 0 . 0 00 3 5 9 . 8 0 2 3 5 8 . 4 2 0 3 5 3 . 5 2 . 1 3 3 1+ 4 3 1 + 4 3 E l b o w   ( 4 5 d e g ) 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 0 . 1 5 0 . 0 7 7 35 8 . 4 2 0 3 5 8 . 3 4 3 3 5 3 . 5 2 . 1 0 0 1+ 4 3 2 + 0 5 F o r c e   M a i n ,   P 5 6 2 . 1 1 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 1 . 4 0 4 0 . 0 00 3 5 8 . 3 4 3 3 5 6 . 9 3 9 3 5 3 . 5 1 . 4 9 1 2+ 0 5 2 + 0 5 E l b o w   ( 4 5 d e g ) 6 . 2 2 0 5 4 5 1 . 2 1 5 . 7 5 0 . 5 1 1 0 0 0 . 0 3 3 0 . 0 0 0 0 . 1 5 0 . 0 7 7 35 6 . 9 3 9 3 5 6 . 8 6 2 3 5 3 . 5 1 . 4 5 8 2+ 0 5 3 + 6 4 F o r c e   M a i n ,   P 6 1 5 9 . 2 7 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 3 . 6 0 0 0 . 00 0 3 5 6 . 8 6 2 3 5 3 . 2 6 2 3 5 3 . 5 ‐ 0 . 1 0 3 3+ 6 4 5 + 3 3 F o r c e   M a i n ,   P 7 1 6 9 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 3 . 8 2 0 0 . 0 0 0 35 3 . 2 6 2 3 4 9 . 4 4 2 3 5 3 . 5 ‐ 1 . 7 5 9 5+ 3 3 5 + 3 3 D i s c h a r g e   i n t o   M H 6 . 0 8 0 5 4 5 1 . 2 1 6 . 0 2 0 . 5 6 1 3 0 0 . 0 2 3 0 . 0 0 0 0 . 5 0 . 28 2 3 4 9 . 4 4 2 3 4 9 . 1 6 1 3 5 3 . 5 ‐ 1 . 8 8 1 31 0 . 0 0 0 32 0 . 0 0 0 33 0 . 0 0 0 34 0 . 0 0 0 35 0 . 0 0 0 36 0 . 0 0 0 37 0 . 0 0 0 ‐0 + 2 0 0 + 8 0 1 + 8 0 2 + 8 0 3 + 8 0 4 + 8 0 5 + 8 0 HG L Pump Data Sheet - Hidrostal US Company: Romtec Utilities Name: HIGHGATE COMMUNITY Date: 02/22/2019 Pump: Size: E5K-L Type:HIDROSTAL Synch Speed:Adjustable Curve:CUR-E5K-L Dia:9.75 in Impeller:E5K-L Pump Limits: Temperature:--- Wkg Pressure:--- Sphere Size:2.75 in Search Criteria: Flow: 44.6 ft Fluid: Water SG:1 Density:62.4 lb/ft³ Viscosity:1.1 cP Temperature:60 °F Vapor Pressure:0.256 psi a Atm Pressure:14.7 psi a Motor: Consult Hidrostal US to select a motor for this pump. Near Miss: 33.5 ft 450 US gpm Head: --- Static Head: Dimensions:Suction: 5 inDischarge: 6 in Name: Pump Selection Warnings: None --- Duty Point --- Flow:549 US gpm Head:50 ft Eff:73.4% Power:9.43 hp NPSHr:5.22 ft --- Design Curve --- Shutoff Head:101 ft Shutoff dP:43.5 psi Min Flow:245 US gpm BEP:76% @ 720 US gpm NOL Power: 9.8 hp @ 260 US gpm --- Max Curve --- Max Power: 9.8 hp @ 260 US gpm Speed:1800 rpm Performance Evaluation: Flow Speed Head Efficiency Power NPSHr US gpm rpm ft %hp ft 540 1800 50.6 73 9.43 5.19 450 1800 57.1 68 9.47 5.22 360 1800 64.2 61 9.61 5.52 270 1800 73.5 51 9.79 5.93 180 1800 ------------ Selected from catalog: Hidrostal US.60, Vers 1.2 Company:Romtec Utilities Name:HIGHGATE COMMUNITY Date:02/22/2019 Hidrostal US Catalog: Hidrostal US.60, Vers 1.2 HIDROSTAL - Adjustable Design Point:450 US gpm, 44.6 ft Static Head: 33.5 ft Size:E5K-L Speed:1800 rpm Dia:9.75 in Curve:CUR-E5K-L Impeller:E5K-L