Water-to-water heat pump for heating and cooling of a public building

Tema diplomskog rada je ugradnja i analiza primjene dizalice topline voda-voda u nestambenoj uredskoj zgradi na prostoru grada Siska. Početak rada se odnosi na proračun projektnog toplinskog i rashladnog opterećenja prema normama HRN EN 12831 za grijanje te VDI 2078 za hlađenje, da bi se prema rezultatima proračuna odabrao sustav dizalice topline. Nakon toga se proračunava godišnja potrebna energija za grijanje i hlađenje prema normi HRN EN 13790, što je u biti uvod u tehno-ekonomski proračun u kojem se analizira isplativost promatranog sustava u odnosu na postojeće stanje. Naposljetku se donosi zaključak utemeljen na rezultatima proračuna.The theme of this thesis is the implementation and analysis of the water-to-water heat pump in a non-residential office building in the city of Sisak. Thesis starts with calculation of design heat load and cooling load by using HRN EN 12831 (for heat load) and VDI 2078 (for cooling load) standards. Afterwards, annual heating and cooling energy demand is calculated, in accordance to HRN EN 13790 standard, which is introduction to techno-economic analysis. Techno-economic analysis includes comparison of existing heating and cooling system with water-to-water heat pump. Finally, the conclusion, based on the results of calculations, is drawn