A PERSPECTIVE NUMERICAL STEP BY STEP THERMAL MODELING FOR OVER-GROUND OUTDOOR SWIMMING POOL DESIGN OPTIMIZATION

The prediction of heating demand for outdoor swimming pool installed over-ground was established. The step by step technique in regards to the heat losses and pool temperature variation with climate conditions were investigated. The postulated technique showed that the optimization methodology predicted a more accurate heating demand than the traditional technique which considered the pool as a lumped body. A hypothetical pool size of (100) m 3 to operate for recreational objectives at design temperature range of (24-29) °C was studied. Ambient air temperature range of (10-20) °C, (50) % relative humidity and wind speed range of (1.8-18) km/h were assigned for the design scheme. The major losses of pool operation showed that evaporation occupied the highest percentage among other components during pool usage. It was amount to (54-79) % of the total loss for the investigated environment wind speed. The results showed that the heat loss out of the pool accounted for (40-49) % of the total heat input depending on the wind speed during the preheating stage. Computer codes were built to implement the numerical scheme for the prediction of the design heating load. At specified operating strategy and pool conditions, the present technique showed the possibility to maintain the comfortable conditions for swimmers with (15-17.5) % lower heating load demand than previous published design model.