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Index Number: Name: Frimpong Kwaku Agyemang Eqe 1-Assignment 3

The document summarizes the design of a water storage tank to serve a population of 500 people over 3 years. It calculates the required volume of the tank as 78 cubic meters. Assuming a depth of 3.5 meters, it determines the surface area is 22.2 square meters. The tank is designed with dimensions of 6.68 meters in length, 3.34 meters in width, and a depth of 3.5 meters. It is further divided into two compartments with a length ratio of 2:1, having dimensions of 4.45m x 3.34m x 3.5m and 2.23m x 3.34m x 3.5m for the first and second compartments respectively.

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63 views2 pages

Index Number: Name: Frimpong Kwaku Agyemang Eqe 1-Assignment 3

The document summarizes the design of a water storage tank to serve a population of 500 people over 3 years. It calculates the required volume of the tank as 78 cubic meters. Assuming a depth of 3.5 meters, it determines the surface area is 22.2 square meters. The tank is designed with dimensions of 6.68 meters in length, 3.34 meters in width, and a depth of 3.5 meters. It is further divided into two compartments with a length ratio of 2:1, having dimensions of 4.45m x 3.34m x 3.5m and 2.23m x 3.34m x 3.5m for the first and second compartments respectively.

Uploaded by

Kwaku frimpong
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© © All Rights Reserved
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INDEX NUMBER: 9261717

NAME: FRIMPONG KWAKU AGYEMANG


EQE 1- ASSIGNMENT 3

Q= 0.012m3 S= 0.04 m^3/p/yr; t=3 days; T=3 years; f=1


Population(N)= 100×5 =500 persons
Volume of tank= NQt +NSTf
=500×0.012×3 + 500×0.04×3×1
=78 m^3
Assuming a depth of 3.5m
78
Surface area of tank = 3.5 =22.2 m^2

Length to width ratio = 2:1


Length(L) = 2× width(W)
L=2W
W×2W=22.29
2W 2 =22.29
√ 22.29 =3.34 m
W=
√2
L=2×3.34
=6.68m
Dimensions of tank;
Length=6.68m
Width=3.34m
Depth=3.5m
Design for two compartments
Assume ratio of the length of first to second compartment be 2:1.
2
Length of first compartment= 3 ×6.68=4.45m

length of second compartment=(1/3) x 6.68 = 2.23m


Dimensions of first compartment;
Length= 4.45m
Width= 3.34m
Depth= 3.5m
Dimensions of second compartment;
Length=2.23m
Width=3.34m
Depth=3.5m

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