11540656 Npsh Calculator For Process Engineer 4o36p
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- Pages: 14
NPSH Calculator Author: Dimitrii Pokrovskii [email protected] www.engineering-bear.com
Nov. 16th, 2007, Brought to you by
www.azpiping.com
with permittance from Author
1 - Start
2
Pump Operating Parameters
System Inlet Height Configu Open System:
Fluid Temperature (through the pump): Total Pump Volumetric Flow Rate:
(32 - 212 F) (can't change)
Atmospheroc Pressure: Fluid Vapor Pressure:
45 0 14.7 33.957 0.7516
liquid level
Vapor Pres.(ft. Water)
Water Vapor Pres. @ Sea Level 40 y = 7.1929E-06x3 - 9.8352E-04x2 + 4.6395E-02x
30 25 20 15 10 5 0 0
50
100
150
Temperature Deg. F
liquid level
Surface Pressure 0
Water Vapor Pressure Reference Table Water Temp. Vapor Pressure (Deg. F) (ft. Water) 80 1 100 2 120 4 140 7 180 18 200 28 212 33.96
35
deg. F gpm PSI ft. Water (ft. Water)
200
250
Each sub system is defined by a fitting that either changes the pipe size or a Tee that combines or separates flow.
from Author
2
3
Inlet Height Configuration
System Piping Configuration 1 Pipe Type
Schedule 40 1 0 0
Pipe Size (Nominal) Pipe Length Flow Rate (Positive) Height h
Fittings 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
inlet Surface Pressure PSIG inlet -h (Negative) Height
4 Height:
Static Head 0 ft.
Qt.
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Schedule 40 1 0 0
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Design Calculator - Do not Edit Values Here
Total Fitting Eq. L NA NA NA NA Ref. NA NA NA NA NA 1 4 2 5 3 6
Nominal Diam.
Pipe Length (ft.) NA NA NA NA NA NA NA NA NA 0 0 0 0 0 0
0 0 0 0 0 0
1 2 3 4 5 6 8 10 12 14 1 1 1 1 1 1
ID (inch) 1.049 2.067 3.068 4.026 5.047 6.065 8.071 10.136 12.09 13.125 1.049 1.049 1.049 1.049 1.049 1.049
3 - When You're Done W/ Step 3 - Press the Calculate NPSH Button (Optional)
2 inch ft gpm
Total
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
0 0 0 0 0 0 0 0 0 0 0
5 inch ft gpm
Total 0 0 0 0 0 0 0 0 0 0 0
Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
Schedule 40 1 inch 0 ft 0 gpm
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Schedule 40 1 inch 0 ft 0 gpm
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Rel. Roughness e=
Pipe ID Area (inch^2) 0.864252924 3.355605014 7.392657602 12.73026436 20.00582617 28.89026276 51.16165396 80.69062607 114.8001573 135.2971055 0.864252924 0.864252924 0.864252924 0.864252924 0.864252924 0.864252924
Flow GPM NA NA NA NA NA NA NA NA NA NA
Flow (ft^3/s)
0 0 0 0 0 0
0.001
Velocity (ft/s) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Re 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
e/D 0.00095329 0.00048379 0.00032595 0.00024839 0.00019814 0.00016488 0.0001239 9.8658E-05 8.2713E-05 7.619E-05 0.0009533 0.0009533 0.0009533 0.0009533 0.0009533 0.00095329
Friction Factor NA NA NA NA NA NA NA NA NA 0 0.012915 0.011802 0.012284 0.011514 0.012185 0.011514 Total Frictional Head
ate NPSH Button (Optional)
3
Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Schedule 40 1 inch 0 ft 0 gpm
Fittings Qt. Eq. Length 90 Ells 0 20 45 Ell 0 16 Globe Valve 0 340 Angle Valve 0 150 Ball Valve 0 8 BF-Valve 0 29.9 Ck-Valve 0 55 Stand. Tee - flow through run 0 20 Stand. Tee - flow through branch0 60 0 0 Total Eq. Length
6
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Total 0 0 0 0 0 0 0 0 0 0 0
Schedule 40 1 inch 0 ft 0 gpm
Fittings Qt. Eq. Length 90 Ells 0 20 45 Ell 0 16 Globe Valve 0 340 Angle Valve 0 150 Ball Valve 0 8 BF-Valve 0 29.9 Ck-Valve 0 55 Stand. Tee - flow through run 0 20 Stand. Tee - flow through branch0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Safety Factor Piping Fittings
HEAD Fittings NA NA NA NA NA NA NA NA NA NA
1.3 1.3 HEAD LOSS
Head Pipe NA NA NA NA NA NA NA NA NA NA
0 0 0 0 0 0 0 0 0 0 0 0 Total Frictional Head Loss:
Sum NA NA NA NA NA NA NA NA NA NA 0 0 0 0 0 0 ft. water 0 PSI 0
245507090.xls.ms_office
Date: Job Name: Drawings / Page: Max GPM:
NPSH Calculation
9/25/2014 13:33
Address:
Constants / Assumptions: Mean Operating Fluid Temperature:
45 ºF
Total Flow Through Pump:
0 gpm
Pumped Fluid: WATER
Vapor Pressure of Liquid:
0.75 ft. water
Atmospheric Pressure:
14.70 PSIA
Surface Pressure:
0 PSIG
33.96 ft. Water (if exposed to air surface pressure = 0)
Piping Configuration: Pipe Sub System#: Pipe Diam. (Nom): Pipe Length: Flow Rate:
1
2
1 inch 0 feet 0 gpm
Pipe Pressure Drop:
3
1 inch 0 feet 0 gpm
0.0 ft. Water 0.0 psi
4
1 inch 0 feet 0 gpm
1 inch 0 feet 0 gpm
0.0 ft. Water 0.0 psi
0.0 ft. Water 0.0 psi
0.0 ft. Water 0.0 psi
2 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
3 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
4 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
5
6
1 inch 0 feet 0 gpm 0.0 0.0
1 inch 0 feet 0 gpm
ft. Water psi
0.0 ft. Water 0.0 psi
5 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
6 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
Total 0.0 0.0
Valves (Fully Open) / Fittings
90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch Eq. Length Total: Fitting Pressure Drop:
Additonal Pressure Drops:
Qt. 0 0 0 0 0 0 0 0 0 0
1 Eq. Length Total 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 0 0
0.0 ft. water 0.0 psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Description input here input here input here input here input here Total:
0.0 0.0 0.0 0.0 0.0 0.0
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
Qt. 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
0.0 0.0
ft. water ft. water ft. water ft. water ft. water ft. water
Total 0 0 0 0 0 0 0 0 0 0 0
ft. water psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Total 0 0.0 0.0
Total Head Loss (Pipe + Fittings + Additional Drops) :
0.0
Results (Static Head)
NPSHA
= 34.0 + (Atmospheric Pressure)
0.0
+
(Vapor Pressure)
0.0 (Surface Pressure)
0.8
(Loss in Fittings)
-
0.0 (Loss in Pipe Length)
0.0
NPSHA
-
0.0 (Additonal Loss)
=
33.21
ft. Water
0
ft. Water
Net Positive Suction Head Available Pump Schedule #: MFR: Model #:
NPSHR Net Positive Suction Head Required (From Pump Curve)
Safety Factor Enter NPSHR
Air Systems Confidential
9/25/2014
Page 9
PDF Table of Schedule 40 & 80 Pipe Geometry
Adobe Acrobat 7.0 Document
Nom. Diam. Inchs 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6 8 10 12 14 16 18 20 24
Schedule 80
Schedule 40
ID ID Inches Inches 0.269 0.215 0.364 0.302 0.493 0.423 0.622 0.546 0.824 0.742 1.049 0.957 1.38 1.278 1.61 1.5 2.067 1.939 2.469 2.323 3.068 2.9 3.548 3.364 4.026 3.826 5.047 4.813 6.065 5.761 7.981 7.625 10.02 9.564 11.938 11.376 13.124 12.5 15 14.314 16.874 16.126 18.814 17.938 22.626 21.564
This Data is for Development Purposes
Note: Trying tofigure out how my fluids results compare to the table values found in the hand looks like there is a safety factor associated with the table values when compared to the the Pressure Drop in 100 ft. of Pipe My Value Flow Wheel DI GPM 1.85 2.4 3 100 1.5 1.95 3 90 0.92 1.2 3 70 0.68 0.9 3 60 2.7 2.7 5 400 1.6 1.6 5 300 2.4 2.3 6 700 1.2 1.3 8 900 1.5 1.6 8 1000
Rel. Roughtness e = 0.001 Ratio 1.0 Rel. Roughness e = 0.001 Ration 1.3
3 ASHRAE Value
2.5 2 1.5 1 0.5
ASHRAE = 1.0016 * (My)
0 0
1
2 My Value
3
re to the table values found in the handbook and the pump wheel table values when compared to the theoretical values. More testing needs to be done with a wider range of flows and pipe sizes
ASHRAE Value
3
y = 1.3008x
2.5 2 1.5 1 0.5 0 0
0.5
1 My Value
1.5
2
of flows and pipe sizes
ASI-NPSH Calculator VS HVAC PUMP Handbook
1000 1500 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 5000
Handbook Head Loss for 100ft of Pipe (ft of Water) Asi Calculator Head Loss for 100 ft of Pipe (ft of Water)
Flow Rate (GPM)
HVAC PUMP Handbook - Author: James B. Rishel
Nov. 16th, 2007, Brought to you by
www.azpiping.com
with permittance from Author
1 - Start
2
Pump Operating Parameters
System Inlet Height Configu Open System:
Fluid Temperature (through the pump): Total Pump Volumetric Flow Rate:
(32 - 212 F) (can't change)
Atmospheroc Pressure: Fluid Vapor Pressure:
45 0 14.7 33.957 0.7516
liquid level
Vapor Pres.(ft. Water)
Water Vapor Pres. @ Sea Level 40 y = 7.1929E-06x3 - 9.8352E-04x2 + 4.6395E-02x
30 25 20 15 10 5 0 0
50
100
150
Temperature Deg. F
liquid level
Surface Pressure 0
Water Vapor Pressure Reference Table Water Temp. Vapor Pressure (Deg. F) (ft. Water) 80 1 100 2 120 4 140 7 180 18 200 28 212 33.96
35
deg. F gpm PSI ft. Water (ft. Water)
200
250
Each sub system is defined by a fitting that either changes the pipe size or a Tee that combines or separates flow.
from Author
2
3
Inlet Height Configuration
System Piping Configuration 1 Pipe Type
Schedule 40 1 0 0
Pipe Size (Nominal) Pipe Length Flow Rate (Positive) Height h
Fittings 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
inlet Surface Pressure PSIG inlet -h (Negative) Height
4 Height:
Static Head 0 ft.
Qt.
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Schedule 40 1 0 0
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Design Calculator - Do not Edit Values Here
Total Fitting Eq. L NA NA NA NA Ref. NA NA NA NA NA 1 4 2 5 3 6
Nominal Diam.
Pipe Length (ft.) NA NA NA NA NA NA NA NA NA 0 0 0 0 0 0
0 0 0 0 0 0
1 2 3 4 5 6 8 10 12 14 1 1 1 1 1 1
ID (inch) 1.049 2.067 3.068 4.026 5.047 6.065 8.071 10.136 12.09 13.125 1.049 1.049 1.049 1.049 1.049 1.049
3 - When You're Done W/ Step 3 - Press the Calculate NPSH Button (Optional)
2 inch ft gpm
Total
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
0 0 0 0 0 0 0 0 0 0 0
5 inch ft gpm
Total 0 0 0 0 0 0 0 0 0 0 0
Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Fittings Qt. 90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch -
Schedule 40 1 inch 0 ft 0 gpm
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Schedule 40 1 inch 0 ft 0 gpm
Eq. Length 0 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Rel. Roughness e=
Pipe ID Area (inch^2) 0.864252924 3.355605014 7.392657602 12.73026436 20.00582617 28.89026276 51.16165396 80.69062607 114.8001573 135.2971055 0.864252924 0.864252924 0.864252924 0.864252924 0.864252924 0.864252924
Flow GPM NA NA NA NA NA NA NA NA NA NA
Flow (ft^3/s)
0 0 0 0 0 0
0.001
Velocity (ft/s) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Re 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
e/D 0.00095329 0.00048379 0.00032595 0.00024839 0.00019814 0.00016488 0.0001239 9.8658E-05 8.2713E-05 7.619E-05 0.0009533 0.0009533 0.0009533 0.0009533 0.0009533 0.00095329
Friction Factor NA NA NA NA NA NA NA NA NA 0 0.012915 0.011802 0.012284 0.011514 0.012185 0.011514 Total Frictional Head
ate NPSH Button (Optional)
3
Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Schedule 40 1 inch 0 ft 0 gpm
Fittings Qt. Eq. Length 90 Ells 0 20 45 Ell 0 16 Globe Valve 0 340 Angle Valve 0 150 Ball Valve 0 8 BF-Valve 0 29.9 Ck-Valve 0 55 Stand. Tee - flow through run 0 20 Stand. Tee - flow through branch0 60 0 0 Total Eq. Length
6
(Optional) Pipe Type Pipe Size (Nominal) Pipe Length Flow Rate
Total 0 0 0 0 0 0 0 0 0 0 0
Schedule 40 1 inch 0 ft 0 gpm
Fittings Qt. Eq. Length 90 Ells 0 20 45 Ell 0 16 Globe Valve 0 340 Angle Valve 0 150 Ball Valve 0 8 BF-Valve 0 29.9 Ck-Valve 0 55 Stand. Tee - flow through run 0 20 Stand. Tee - flow through branch0 60 0 0 Total Eq. Length
Total 0 0 0 0 0 0 0 0 0 0 0
Safety Factor Piping Fittings
HEAD Fittings NA NA NA NA NA NA NA NA NA NA
1.3 1.3 HEAD LOSS
Head Pipe NA NA NA NA NA NA NA NA NA NA
0 0 0 0 0 0 0 0 0 0 0 0 Total Frictional Head Loss:
Sum NA NA NA NA NA NA NA NA NA NA 0 0 0 0 0 0 ft. water 0 PSI 0
245507090.xls.ms_office
Date: Job Name: Drawings / Page: Max GPM:
NPSH Calculation
9/25/2014 13:33
Address:
Constants / Assumptions: Mean Operating Fluid Temperature:
45 ºF
Total Flow Through Pump:
0 gpm
Pumped Fluid: WATER
Vapor Pressure of Liquid:
0.75 ft. water
Atmospheric Pressure:
14.70 PSIA
Surface Pressure:
0 PSIG
33.96 ft. Water (if exposed to air surface pressure = 0)
Piping Configuration: Pipe Sub System#: Pipe Diam. (Nom): Pipe Length: Flow Rate:
1
2
1 inch 0 feet 0 gpm
Pipe Pressure Drop:
3
1 inch 0 feet 0 gpm
0.0 ft. Water 0.0 psi
4
1 inch 0 feet 0 gpm
1 inch 0 feet 0 gpm
0.0 ft. Water 0.0 psi
0.0 ft. Water 0.0 psi
0.0 ft. Water 0.0 psi
2 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
3 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
4 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
5
6
1 inch 0 feet 0 gpm 0.0 0.0
1 inch 0 feet 0 gpm
ft. Water psi
0.0 ft. Water 0.0 psi
5 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
6 Eq. Length 20 16 340 150 8 29.9 55 20 60 0
Total 0.0 0.0
Valves (Fully Open) / Fittings
90 Ells 45 Ell Globe Valve Angle Valve Ball Valve BF-Valve Ck-Valve Stand. Tee - flow through run Stand. Tee - flow through branch Eq. Length Total: Fitting Pressure Drop:
Additonal Pressure Drops:
Qt. 0 0 0 0 0 0 0 0 0 0
1 Eq. Length Total 20 0 16 0 340 0 150 0 8 0 29.9 0 55 0 20 0 60 0 0 0 0
0.0 ft. water 0.0 psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Description input here input here input here input here input here Total:
0.0 0.0 0.0 0.0 0.0 0.0
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
Qt. 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
0.0 0.0
ft. water ft. water ft. water ft. water ft. water ft. water
Total 0 0 0 0 0 0 0 0 0 0 0
ft. water psi
Qt. 0 0 0 0 0 0 0 0 0 0
Total 0 0 0 0 0 0 0 0 0 0 0
0.0 ft. water 0.0 psi
Total 0 0.0 0.0
Total Head Loss (Pipe + Fittings + Additional Drops) :
0.0
Results (Static Head)
NPSHA
= 34.0 + (Atmospheric Pressure)
0.0
+
(Vapor Pressure)
0.0 (Surface Pressure)
0.8
(Loss in Fittings)
-
0.0 (Loss in Pipe Length)
0.0
NPSHA
-
0.0 (Additonal Loss)
=
33.21
ft. Water
0
ft. Water
Net Positive Suction Head Available Pump Schedule #: MFR: Model #:
NPSHR Net Positive Suction Head Required (From Pump Curve)
Safety Factor Enter NPSHR
Air Systems Confidential
9/25/2014
Page 9
PDF Table of Schedule 40 & 80 Pipe Geometry
Adobe Acrobat 7.0 Document
Nom. Diam. Inchs 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3 3 1/2 4 5 6 8 10 12 14 16 18 20 24
Schedule 80
Schedule 40
ID ID Inches Inches 0.269 0.215 0.364 0.302 0.493 0.423 0.622 0.546 0.824 0.742 1.049 0.957 1.38 1.278 1.61 1.5 2.067 1.939 2.469 2.323 3.068 2.9 3.548 3.364 4.026 3.826 5.047 4.813 6.065 5.761 7.981 7.625 10.02 9.564 11.938 11.376 13.124 12.5 15 14.314 16.874 16.126 18.814 17.938 22.626 21.564
This Data is for Development Purposes
Note: Trying tofigure out how my fluids results compare to the table values found in the hand looks like there is a safety factor associated with the table values when compared to the the Pressure Drop in 100 ft. of Pipe My Value Flow Wheel DI GPM 1.85 2.4 3 100 1.5 1.95 3 90 0.92 1.2 3 70 0.68 0.9 3 60 2.7 2.7 5 400 1.6 1.6 5 300 2.4 2.3 6 700 1.2 1.3 8 900 1.5 1.6 8 1000
Rel. Roughtness e = 0.001 Ratio 1.0 Rel. Roughness e = 0.001 Ration 1.3
3 ASHRAE Value
2.5 2 1.5 1 0.5
ASHRAE = 1.0016 * (My)
0 0
1
2 My Value
3
re to the table values found in the handbook and the pump wheel table values when compared to the theoretical values. More testing needs to be done with a wider range of flows and pipe sizes
ASHRAE Value
3
y = 1.3008x
2.5 2 1.5 1 0.5 0 0
0.5
1 My Value
1.5
2
of flows and pipe sizes
ASI-NPSH Calculator VS HVAC PUMP Handbook
1000 1500 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250 4500 4750 5000 5250 5000
Handbook Head Loss for 100ft of Pipe (ft of Water) Asi Calculator Head Loss for 100 ft of Pipe (ft of Water)
Flow Rate (GPM)
HVAC PUMP Handbook - Author: James B. Rishel
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