Fluid mechanics

To design water supply system with pump station and perform following works:
• Compute and select 2 or more pumps for the system;
• Compute regime and actual capacity of the pumps;
• Select electrical motors for pumps;
• Compute price of electrical power utilized for water supply;
• Compute volume of reservoir;
• Optimize diameter of pressure pipeline;
• Draw scheme of the system by hand;
INITIAL DATA:
• Pressure in reservoir Pm= 45kPa;
• Water requirement Q= 750m3/day.
Map of the area and percents of water consumption per hour attached.
COMMENTS:
I got acquainted with initial data, explored map, and choose village where to install water supply system and ready for calculations.
CALCULATIONS
After exploring the map I selected settlement where to construct a pipe line. I have selected area of Marginiai village which is situated 106 meters above sea level. I found highest place on the map in Marginiai area to place the reservoir witch is 113.1 meter above sea level . The pumps station will be placed 780m from the reservoir at 98.6 meters above sea level height (distance is measured using map with scale 1:1000) The suction pipe length is 4 m. From this date I calculate that pump station will be placed 18.5 meters lower than reservoir and village.
CALCULATION OF PUMPS AND RESERVOIR:
Table No.1 Computation of the pumps and reservoir
Hours of day
p,%
Q, m/h
Pumps
Q, m/h
(Q-Q), m/h
-Q), m/h
1
0
0
-
0
0
0
2
0
0
-
0
0
0
3
0
0
-
0
0
0
4
0
0
-
0
0
0
5
0
0
-
0
0
0
6
0
0
-
0
0
0
7
0
0
2
90
90
90
8
10
75
1
65
-10
80
9
10
75
1
65
-10
70
10
10
75
2
65
-10
60
11
15
112,5
2
90
-22,5
37,5
12
15
112,5
2
90
-22,5
15
13
8
60
1
65
5
20
14
10
75
1
65
-10
10
15
10
75
1
65
-10
0
16
12
90
2
90
0
0
17
0
0
-
0
0
0
18
0
0
-
0
0
0
19
0
0
-
0
0
0
20
0
0
-
0
0
0
21
0
0
-
0
0
0
22
0
0
-
0
0
0
23
0
0
-
0
0
0
24
0
0
-
0
0
0
100
750

0
750

From given daily flow rate distribution Q= 750m3/day according to given water supply I compute hourly flow rates Qh = Q (1)
where Ph and Pd are percents of water consumption per hour and day (Pd=100%) .
After calculating hourly flow rates I can select pumps to satisfy the condition.
I select two pumps from catalogue in the internet for required flow rate, namonal parameters of the pumps are:
1st pump: IR 50 / 160 A ; Q=65 m/h; Hp1n = 39,4 m m; hp1n =0.42, Power 7500W;
2nd...

Daugiau informacijos...

★ Klientai rekomenduoja

Šį rašto darbą rekomenduoja mūsų klientai. Ką tai reiškia?

Mūsų svetainėje pateikiama dešimtys tūkstančių skirtingų rašto darbų, kuriuos įkėlė daugybė moksleivių ir studentų su skirtingais gabumais. Būtent šis rašto darbas yra patikrintas specialistų ir rekomenduojamas kitų klientų, kurie po atsisiuntimo įvertino šį mokslo darbą teigiamai. Todėl galite būti tikri, kad šis pasirinkimas geriausias!