2) Specify a centrifugal pump, from Figure 3.15, in terms of power, efficiency and rotor diameter, for a water treatment unit (p= 0.997 g/cm³ and μ= 0.917 cP), illustrated in Figure 3, which consists of a filter (A) and an ion exchange column (B). The installation capacity is 40m³/h and the total length of the pipe is 35 m. The piping is made of 3" commercial steel, relative roughness equal to 0.001 and has a globe valve (open) and 9 elbows (long) of 90°.

Elements Of Electromagnetics
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Especificar uma bomba centrífuga, a partir da Figura 3.15, em termos de potência, eficiência e diâmetro do rotor, para uma unidade de tratamento de água (ρ= 0,997 g/cm³ e μ= 0,917 cP), ilustrada na Figura 3, que consiste em um filtro (A) e uma coluna de troca iônica (B). A capacidade de instalação é de 40m³/h e o comprimento total da tubulação é de 35 m. A tubulação é feita de aço comercial de 3'', rugosidade relativa igual a 0,001 e possui válvula globo (aberta) e 9 cotovelos (longos) de 90°.

2) Specify a centrifugal pump, from Figure 3.15, in terms of power, efficiency and rotor
diameter, for a water treatment unit (p= 0.997 g/cm³ and μ= 0.917 cP), illustrated in Figure 3,
which consists of a filter (A) and an ion exchange column (B). The installation capacity is 40m³/h
and the total length of the pipe is 35 m. The piping is made of 3" commercial steel, relative
roughness equal to 0.001 and has a globe valve (open) and 9 elbows (long) of 90°.
Figura 3 Exercicio proposto 5.
Carga total (ft)
110-
100
90
80
70
60-
50-
Diámetro do
rotor 10 pol.
9 pol.
8 pol.
7 pol.
40
30 6 pol
20
10.
0
0
10
100
50
+ +
10 20
50
3/
NSPH 4
55 60
65
Rendimento
5/ 6/t
67/
2 HP
300
3 HP
150 200 250
350
30 40 50 60 70 80
Capacidade (vazão volumétrica)
78
65
SHP
400
+
90
8/t
-35
Figure 3.15
-30
The difference in level between points 1 and 2 can be considered zero, while the loads relative
to columns A and B are, respectively, equal to 16 m and 4 m.
Answer: D=9 in, n=57%; Wu= 7.5 HP.
-25
10HP
7% HP-10
-5
20
-15
Carga total (m)
-0
450 gal/min
100 m³/h
Transcribed Image Text:2) Specify a centrifugal pump, from Figure 3.15, in terms of power, efficiency and rotor diameter, for a water treatment unit (p= 0.997 g/cm³ and μ= 0.917 cP), illustrated in Figure 3, which consists of a filter (A) and an ion exchange column (B). The installation capacity is 40m³/h and the total length of the pipe is 35 m. The piping is made of 3" commercial steel, relative roughness equal to 0.001 and has a globe valve (open) and 9 elbows (long) of 90°. Figura 3 Exercicio proposto 5. Carga total (ft) 110- 100 90 80 70 60- 50- Diámetro do rotor 10 pol. 9 pol. 8 pol. 7 pol. 40 30 6 pol 20 10. 0 0 10 100 50 + + 10 20 50 3/ NSPH 4 55 60 65 Rendimento 5/ 6/t 67/ 2 HP 300 3 HP 150 200 250 350 30 40 50 60 70 80 Capacidade (vazão volumétrica) 78 65 SHP 400 + 90 8/t -35 Figure 3.15 -30 The difference in level between points 1 and 2 can be considered zero, while the loads relative to columns A and B are, respectively, equal to 16 m and 4 m. Answer: D=9 in, n=57%; Wu= 7.5 HP. -25 10HP 7% HP-10 -5 20 -15 Carga total (m) -0 450 gal/min 100 m³/h
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