Use the pump map attached, Suppose I want to pump water at 120 gpm against a head of 10 m. a. What size impeller should I use... note it is between two .. do I want the larger or the smaller and why. b. With this impeller, you can read the hp required and the pump efficiency.. report them. c. What input head is required (NPSH)? d. If I use the largest impeller at 120 gpm it should be clear I will generate extra "head" or pressure. What could I do to handle this extra head.. ie to not deliver too much pressure to my system?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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METERS FEET
METROS PIES
Total dynamic bead (CARGA DINAMICA TOTAL)
후
20
70
60
15 50
40
30
20
Model 3656/3756 S-Group
SAI, BF, AB/Size (Tamaño) 1¹2 x 2-8
Imp. Dwg. 118-88
10
0
0
.A 8 1/16" DIA..
B7 3/4"
C63/4"
NPSH-FEET (PIES)
D53/4"
%EFF 50
20
40
60-
10
60
70-
1750 RPM NOTE: Not recommended for operation beyond
printed H-Q curve.
NOTA: No se recomienda la operación más allá
de la curva impresa de H-Q (carga-capacidad).
80
20
3⁰.
3/4 HP
100
1 HP
Capacity (CAPACIDAD)
5
120
70-
112 HP
30
140
2 HP
11
60-
3 HP
160 U.S. GPM
L
40 m³/hr
Transcribed Image Text:METERS FEET METROS PIES Total dynamic bead (CARGA DINAMICA TOTAL) 후 20 70 60 15 50 40 30 20 Model 3656/3756 S-Group SAI, BF, AB/Size (Tamaño) 1¹2 x 2-8 Imp. Dwg. 118-88 10 0 0 .A 8 1/16" DIA.. B7 3/4" C63/4" NPSH-FEET (PIES) D53/4" %EFF 50 20 40 60- 10 60 70- 1750 RPM NOTE: Not recommended for operation beyond printed H-Q curve. NOTA: No se recomienda la operación más allá de la curva impresa de H-Q (carga-capacidad). 80 20 3⁰. 3/4 HP 100 1 HP Capacity (CAPACIDAD) 5 120 70- 112 HP 30 140 2 HP 11 60- 3 HP 160 U.S. GPM L 40 m³/hr
7. Use the pump map attached, Suppose I want to pump water at 120 gpm
against a head of 10 m.
a. What size impeller should I use... note it is between two .. do I want
the larger or the smaller and why.
b. With this impeller, you can read the hp required and the pump
efficiency.. report them.
c. What input head is required (NPSH)?
d. If I use the largest impeller at 120 gpm it should be clear I will
generate extra "head" or pressure. What could I do to handle this
extra head .. ie to not deliver too much pressure to my system?
Transcribed Image Text:7. Use the pump map attached, Suppose I want to pump water at 120 gpm against a head of 10 m. a. What size impeller should I use... note it is between two .. do I want the larger or the smaller and why. b. With this impeller, you can read the hp required and the pump efficiency.. report them. c. What input head is required (NPSH)? d. If I use the largest impeller at 120 gpm it should be clear I will generate extra "head" or pressure. What could I do to handle this extra head .. ie to not deliver too much pressure to my system?
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