Sistem z latentnim hranilnikom toplote za ogrevanje in hlajenje prostorov
Osterman, Eneja ; Butala, Vincenc ; Stritih, Uroš
V tem članku analiziramo prenos toplote v latentnem hranilniku toplote (LHT ), primernemu za aktivno naravno ogrevanje in hlajenje prostorov v stavbah. Zasnovali in izdelali smo prototipni latentni ...hranilnik toplote s ploščami, napolnjenimi s fazno spremenljivo snovjo (FSS), in sicer je bil to parafin RT22HC kot medij za prenos toplote/hladu pa je bil uporabljen zrak. Z eksperimentalnimi rezultati smo validirali numerični model in z njim izvedli analizo delovanja LHT na letni ravni. Ugotovili smo, da je za Ljubljano najprimernejša temperatura tališča za zimo ter poletje enaka (t.j. 20.5 °C), najprimernejši volumski pretok zraka 125 m3/h in najboljša geometrija z debelino plošče 12,5 mm in zračnim kanalom 25 mm. Na letni ravni lahko s takšno izbiro parametrov zmanjšamo rabo energije v prostoru za 187 kWh.
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