Achieving and maintaining hygienic conditions in drinking water installations

U ovom radu se kroz propise, norme i stručne preporuke predlažu zadovoljavajući uvjeti higijene vodoopskrbnog sustava. Osim pravilnog projektiranja instalacija pitke vode, ponuđene su i mogućnosti održavanja njihove higijene. Dodatno, obrađeni su utjecaji na kvalitetu vode i opisani su mikroorganizmi koji se razmnožavaju uslijed navedenih utjecaja. Rješenja za instalacije prikazana su na primjeru stvarnog objekta u računalnom programu Dendrit. Proveden je hidraulički proračun pada tlaka. Analizom sustava dobivene su i prikazane zadovoljavajuće temperature vode, odgovarajući protoci, pregled materijala sustava i vrijeme potrebno za postizanje tražene temperature vode na izljevnom mjestu. Provedena je i termička simulacija u svrhu provjere smanjenja temperatura vode u recirkulacijskom sustavu.In this paper satisfactory hygiene conditions for the water supply system are proposed through guidances, specifications and recommendations. In addition to hygienic design of water installations, the thesis provides possibilities for maintaining hygiene. Additionally, impacts on water quality are discussed and microorganisms that can proliferate due to these impacts are described. Installation solutions were implemented using the example of an actual object in Dendrit computer program. A pressure drop calculation was performed. The system analysis obtained satisfactory water temperatures, corresponding flow rates, an overview of the system materials and the time required to reach the required water temperature at the point-of-use fittings. A thermal simulation was performed to check temperature drop in the recirculation part of water system