For the system shown in Figure 7, water flows through the pump at a rate of 50 Liter/s. The allowable Net Positive Suction Head (NPSH) provided by the manufacturer at this flow rate is 3.2 m. Determine the maximum height 'H' above the water surface at which the pump can be located to operate without cavitating. Data: Pipe diameter, D= 10 cm; Pipe roughness, e = 0.00002; Patm = 101 kPa; Vapor pressure of water, P, (at 20 °C) = 2340 Pa; Density of water (p) = 998 kg/m³; Viscosity of water (4) = 1.002 × 10³ Pa.s. 4 m Reentrant Entrance (K=0.8) H Water at 20 °C 7 m Elbows (K=0.19) Figure 7 Pump
For the system shown in Figure 7, water flows through the pump at a rate of 50 Liter/s. The allowable Net Positive Suction Head (NPSH) provided by the manufacturer at this flow rate is 3.2 m. Determine the maximum height 'H' above the water surface at which the pump can be located to operate without cavitating. Data: Pipe diameter, D= 10 cm; Pipe roughness, e = 0.00002; Patm = 101 kPa; Vapor pressure of water, P, (at 20 °C) = 2340 Pa; Density of water (p) = 998 kg/m³; Viscosity of water (4) = 1.002 × 10³ Pa.s. 4 m Reentrant Entrance (K=0.8) H Water at 20 °C 7 m Elbows (K=0.19) Figure 7 Pump
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:For the system shown in Figure 7, water flows through the pump at a rate of 50
Liter/s. The allowable Net Positive Suction Head (NPSH) provided by the manufacturer
at this flow rate is 3.2 m. Determine the maximum height 'H' above the water surface at
which the pump can be located to operate without cavitating.
Data: Pipe diameter, D= 10 cm; Pipe roughness, e = 0.00002; Patm = 101 kPa; Vapor
pressure of water, P, (at 20 °C) = 2340 Pa; Density of water (p) = 998 kg/m³; Viscosity of
water (u) = 1.002 x 10°³ Pa.s.
4 m
Reentrant
Entrance
(K=0.8)
H
Water at
20 °C
7m
Elbows
(K=0.19)
Figure 7
Pump
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