Central Heating and Domestic Hot Water System for Low Energy Residential Building

Kada stignu hladni zimski mjeseci u stambenim objektima dolazi do potrebe za grijanjem. U skladu s tom potrebom potrebno je projektirati i izvesti termotehnički sustav. Teži se tome da se odabere najisplativiji i najjednostavniji sustav za korištenje. Isplativost određenog sustava ovisi o mnogo čimbenika, a neki od njih su i područje, klimatski čimbenici te sunčevo zračenje. Nadalje, pri izgradnji novih stambenih objekata ili rekonstrokciji postojećih potrebno se pridržavati pravila iz tehničkog propisa o racionalnoj uporabi energije i toplinskoj zaštiti u zgradama. Sukladno propisu potrebno je smanjiti korištenje primarne energije uporabom obnovljivih izvora energije. Samim tim javila se potreba da se koriste sustavi grijanja potpomognuti solarnim kolektorima koji uz pomoć sunčevog zračenja sami proizvode električnu energiju. Nakon svih potrebnih proračuna, sprovođenjem energetsko-ekonomske analize utvrditi će se i odabrati koji je termotehnički sustav grijanja najprikladniji za zadani stambeni objekt.When the cold winter months arrive, there is a need for heating in residential buildings. In accordance with this need, it is necessary to design and implement a thermotechnical system. The aim is to select the most cost efficient and easiest system to use. The profitability of a certain system depends on many factors, some of which are the area climatic factors and solar radiation. Furthermore, when building new residential buildings or reconstructing existing ones, it is necessary to comply with the rules from the technical regulation on rational use of energy and thermal protection in buildings. According to the regulation, it is necessary to reduce the use of primary energy by using renewable energy sources. As a result, the need arose to use heating systems supported by solar collectors, which produce electricity by themselves with the help of solar radiation. After all the necessary calculations, by conducting an energy-economic analysis, it will be determined and selected which thermotechnical heating system is the most suitable for the given residential building