A Methodology of Energy Optimization in Indoor Swimming Pool

Swimming pools require a large amount of energy to provide comfort for the swimmers, therefore, energy saving actions must be studied in order to optimise their efficiency even when the existing systems are already of high performance. The case study relies on a public indoor swimming pool, in which dynamic simulations were developed by using TRNSYS software. Experimental measurement campaign was also performed in order to investigate the system operation to calibrate the numerical model by using the real data. Starting from the virtual model of the pool centre different energy efficiency actions have been analysed in the interest of find achievable energy savings. The first action is related to a new management of the pool centre and involves the reduction of evaporation losses from the water pool surface; the other action proposes to increase the heating supply coming from renewable source. The results of the analysis outline that both proposed solutions permit a reduction of total heat needs and therefore of the amount of primary energy. This permits to carry out replicable analyses by adapting the studied plant system to different operating swimming centres systems, investigating their efficiencies and identifying solutions for energy saving actions.