Liquid of sp.gr and u is in a closed tank with air at pressure measured by a mechanical gauge. It is required to flow this liquid through a piping system connected to a tank as shown in Fig. with a flowrate Q. There are five available pumps with different maximum head which of them is suitable for this system? What power must supply to the pump if its efficiency is n=0.6?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question II
Liquid of sp.gr and u is in a closed tank with air at pressure measured by a mechanical gauge.
It is required to flow this liquid through a piping system connected to a tank as shown in Fig.
with a flowrate Q. There are five available pumps with different maximum head which of them
is suitable for this system? What power must supply to the pump if its efficiency is n=0.6?
Pumps
Ahmax-1
(m)
Manometer
Ahmax2 Ahmax-3 Ahmax-4 Ahmax-5
(m)
(m)
sp.gr. sp.gr.
PAir
hi
h2
hs
(kPa-G) (m) (m) (m)
(m)
(m)
liquid
0.85 0.78
Piping System
oil
2595
30
15
20
16
35
60
130
210
(Le/d): (Le/d)
d.
(poise) (m) (m) (km) (km) (cm) (mm) Elbow Valve
0.8 10.3 0.125
P°
(h:)H.Ex.
(m)
Hig
Z2
L1
L2
L4
Q
(1/min) (kPa)
0.032 42
12
14
60
200
680
100.95
14
PAir
3
Closed
L4
Oil
Air
h3
hz
La
L2
hi 21
Liquid
H.Ex.
Hg
Transcribed Image Text:Question II Liquid of sp.gr and u is in a closed tank with air at pressure measured by a mechanical gauge. It is required to flow this liquid through a piping system connected to a tank as shown in Fig. with a flowrate Q. There are five available pumps with different maximum head which of them is suitable for this system? What power must supply to the pump if its efficiency is n=0.6? Pumps Ahmax-1 (m) Manometer Ahmax2 Ahmax-3 Ahmax-4 Ahmax-5 (m) (m) sp.gr. sp.gr. PAir hi h2 hs (kPa-G) (m) (m) (m) (m) (m) liquid 0.85 0.78 Piping System oil 2595 30 15 20 16 35 60 130 210 (Le/d): (Le/d) d. (poise) (m) (m) (km) (km) (cm) (mm) Elbow Valve 0.8 10.3 0.125 P° (h:)H.Ex. (m) Hig Z2 L1 L2 L4 Q (1/min) (kPa) 0.032 42 12 14 60 200 680 100.95 14 PAir 3 Closed L4 Oil Air h3 hz La L2 hi 21 Liquid H.Ex. Hg
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