2.1 POOL SHAPE EXAMPLES
For most pools the surface area is the most important information required to calculate the area of Collector Array need.
The surface area of most pools can be approximated by considering the pool shape to be a combination of more common shapes.
The approximate surface area can then be easily calculated.
(i) Square or Rectangle
L = 3m Area = Length x Width W = 4m 3m x 4m = 12 Square Metres
L = 8m Area = L x (W1_+_W2) W1 = 4m 2 W2 = 5m = 8 x (_4_+_5_) 2 = 36 Square Metres
D = 4m Area = (_3.14_x_D²_) 4 = (_3.14_x_4_x_4_) 4 = 12.6 Square Metres
(iv) Combination of Shapes
This example shows how to use three basic shapes to calculate the surface area of a swimming pool.
D1 = 3m This pool can be broken up into a L2 = 5m trapezium and two half circles. D3 = 4m
Total Area = Area 1 + Area 2 + Area 3 (Semi Circle) (Trapezium) (Semi Circle) 1 / 3.14 x 3² \ 5 ( 3 + 4 ) 1 / 3.14 x 4² \ = - x | --------- | + ----------- + - x | --------- | 2 \ 4 / 2 2 \ 4 / = 3.5 + 17.5 + 6.3 = 27.3 Square Metres Surface Area = 27.3 square metres Location = Zone B Exposed to = Yes strong winds More than 45 = Yes from equator
The pool used in this example will be used throughout as the basis for sizing and collector location.