Efekat osenčenja od susednih zgrada na energetski učinak nestambene zgrade za klimatske uslove u Srbiji
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Apstrakt
U ovom radu ispitan je uticaj prisustva okolnih objekata na energetsko ponašanje jedne nestambene zgrade za klimatske uslove u Srbiji. Po prvi put je ovaj uticaj razmatran za različite rasporede prisustva ljudi, stvarno, prosečno godišnje i maksimalno prisustvo, i dve različite metode ventilacije (Metoda 1 i 3), definisane prema trenutno važećem standardu EN 16798. Nalazi ove studije ukazuju na to da predviđene ukupne potrebe za toplotnom energijom zgrade mogu biti pod značajnim uticajem usled osenčenja koje izazivaju susedni objekti. Kroz energetske simulacije zgrade ustanovljeno je da zgrada sa ekeftom osenčenja troši od 6.43% до 11% više energije od zgrade kod koje je prisustvo okolnih objekata zanemareno. Zanemarivanje ovog uticaja vodi ka pojavi greške u predviđanju energetske potrošnje zgrade. Posmatrajući istovremeni uticaj prisustva ljudi i okolnih objekata ova greška može dostići vrednost od čak 21.13%. Na osnovu prikazanih rezultata, kako bi se predviđeno energetsko ponašanje zgrade približilo stvarnom ponašanju, preporučuje se upotreba rasporeda stvarnog prisustva ljudi. Raspored maksimalnog prisustva ljudi, u svakom slučaju, treba izbegavati. Iz istog razloga, efekat osenčenja od susednih zgrada treba uzeti u obzir u studijama energetskih simulacija zgrade. Takođe, ovaj efekat treba uzeti u razmatranje prilikom planiranja i razvoja novih urbanih naselja.
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Reference
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