this is fluid mechanics question
a)sketch performance curve of a pump on a head
against volumetric flow rate axis
b) label shutoff and delivery
points.
c) on the same axis sketch a system curve and
label operating point.
fluid mechanics lesson (calculating popa power)
Calculate the power of the pump required to pump the water in hp
(1 BG = 550 lbf.ft / sec)? Density = 62.4 lbm / ft3 and
Viscosity = 1 cp. Water can send to a tank on a flow rate of 30
ft3 / min. data: g = 32.2 ft / sec2, gc =
32,174 lbm.ft / lbf.sec2, T = 20 degrees Celsius, Pump
efficiency = 0.80.
A centrifugal pump lifts water against a head of 36m, the
manometric efficiency being 80%. The suction and delivery pipes are
both 150mm bore, the impeller is of 375mm and 25mm wide at the
outlet; its exit blade angle is 250 and the specific rotational
speed is 1320 rev/min. If the total loss by friction in the
pipeline at this speed is estimated at 9m, calculate the probable
rate of discharge at this speed.
A water pump has the following performance based on the
tabulation below: Q, liters/min Total head, m Power in, W 100 12.0
208.5 120 10.0 204.2 140 8.5 211.3 160 7.5 227.9 180 7.0 263.8
Q, liters/min
Total head,m
Power in,W
100
12.0
208.5
120
10.0
204.2
140
8.5
211.3
160
7.5
227.9
180
7.0
263.8
1. Make computations each for the efficiencies at the different
flowrates and total heads of the pump. Recommend at what total head
should the...
Question 4
An interesting topic in fluid mechanics is Bernoulli's equation,
which relates pressures and velocities of a fluid with the density
of rho at different heights, eq. 13.12. It has applications in the
airspace. It can be used to measure flow speed in a pipe with a
device named the Venturi meter (see figure 13.34). If the cross
sections are 21 cm2 and 13 cm2, and the height difference resulted
from the pressure difference is 0.2 m, calculate the...
ASSIGNMENT 1
TOPIC: INTRODUCTION OF FLUID MECHANICS
GROUP MEMBERS
Name
Matrix Number
QUESTION 1: 10 MARKS
In your own words, explain what have you learnt from fluid
mechanics course.
NAME
INDIVIDUAL REFLECTION
QUESTION 2: 40 MARKS
Refined crude oil has been used to lubricate moving parts in a
wide variety of machines and engines. These petroleum-based
lubricants are extracted from natural crude oil, and must be
refined, desalted, dewaxed, and distilled from crude feedstock.
However, recently, engineers are moving towards...