Swimming Pool Calculation
Area of swimming pool = 62m2.
Depth of swimming pool = 1.6m.
Volume = 62 * 1.6 = 99.2m3.
Length of overflow edge L = (10 + 6.2 + (2 * 0.35) ) * 2 = 34 m
using DIN 19643-1 : 1997-04.
Water area per person = 4.5 m2.
K : Load capacity factor 0.6 1 .
m3
Flow = A 1 62 1 32
4.5 * *
4.5 0.6 3
m hr .
Filters:
Choose two filters swim quip HRP 24 High- rate sand filters each of area = 3.1
ft2 = 0.288m2.
Water balancing
tank V = Vv + Vw
+ VR
Vv = volume of water displaced by bathers = 0.075 m3 Bathers
No. of Bathers = Area 62 13.8 14
Area of Bather 4.5
Vv = 0.075 * 14 = 1.05m3.
VR = Water volume for backwashing 6 AF where AF filter Area.
VR = 6 * 0.288 = 1.728 m2.
For two filters = 2 * 1.728 = 3.456 m3.
Vw=volume of water expelled by waves. Vw 0.144Q
0.052 * A *10
L
0.144*23
Vw 0.052 * 62 *10 34
= 2.58m3
total balancing tank volume = Vv + VR + VW
= 1.05 + 1.728 + 2.58
= 7.08m3
Take it as 7.5m3
Make up water = 30L/bather/day
= 30 * 1.4 /hr = 420L/hr
= 0.117L/S
Pool Heating:
It is recommended to warm up pool water with 0.250C/hr gradient, hence.
Q 0.25 * 99.2 *1000.4.186 1
* 3600
= 28.8KW.
Select calorex H/C model 4022 10KW electric with maximum flow of
110 L 1.83L main pipe 3ً UPVC.
min
s
Inlets ( side wall) of over flow:
Using DIN 19643-11997-04
Inlets shall be arranged with their spacing not exceeding one-third of the pool
width.
Pool maximum width = 6m.
1/3 of width = 2m
using 5 inlets
flow at inlet 23 4.6m3 1
= 1.28L use 1 connection inlet Certikin
5 hr s 4
CK5015 .
1
use 50% of flow for overflow outlets (8 outlet) = 23/8 = 1.44m3/hr = 0.4L/s.
2
Use 1ً connection outlet.
Kid Pool:
Use pools for non swimmer.
Area = 7.07m2.
Depth = 0.6m.
Volume =
4.24m3.
Pool perimeter = 9.42m.
Using DIN 19643-1:1997-04.
Water area per person = 2.7m2.
Flow required = 0.37 *
7.07 = 4.4m3/hr = 1.2L/s.
0.6
Filter:
Choose filter swim Quip HRS 16 with 21GPM Area of filter = 1.4ft2 = 16ً =
0.13m2.
Balance Tank:
Vv = 0.075 * No of person
7.07
= 0.075 =0.225m3.
2.7
* VR
6AF.
= 6 * 0.13 = 0.78m3.
Q
Vw = Vw 0.052 * A *100.144 L
4.4
= 0.052 * 7.07 *100.144* 9.42
= 0.32m3.
Balance tank volume = 0.225 + 0.78 +0.32
= 1.32m3.
take it 1.5m3
Pumps:
Swimming pool pump 6.4L/s (P-1).
Friction losses = inlet overflow ( 25 + 25 ) * 1.5 * 0.03 = 2.25m.
Static head = 3.7m
Filter = 2m
Residual pressure = 0.02 * width = 0.12m.
Total = 8m = 80Kpa.
Select Certikin BP commercial pump 2.5 HP.
kid pool pump 1.2L/s (P – 2)
Head = 6m 60 Kpa
Select Certikin Aquatron 111 0.5HP.
Chiller / heater pump 1.8L/s
Head = 1.6m 106Kpa
Select Aquatron 111 0.75 H.P
Chemical dosing for swimming pool
Flow = 23m3/hr
Chlorine pump capacity Q CD
CC
CD = 10gm/m3 for outdoor pool (chlorine dosage).
CC = 120gm/lt (Chlorine concentration)
23
*10 = 1.9L/hr.
120
PH metering pump = 1.9L/hr = chlorine pump
AL-sulfate metering pump = 1.5 * chlorine pump
= 2.88L/hr.
chemical Dosing for Kid Pool
flow = 4.4m3/hr
chlorine pump capacity 4.4 *10
120
0.4 L/hr.
PH metering pump = chlorine pump = 0.4L/hr.
AL-sulfate metering pump = 1.5 * 0.4 =
0.6L/hr.
