| Title |
Review on the Effectiveness of Apartments According to Insulation Reinforcement of Energy Saving Design Standard |
| Authors |
Ji-hyeon Kim ; Hee-won Lim ; Hyun-seung Lee ; U-cheul Shin |
| DOI |
https://doi.org/10.5659/JAIK_SC.2020.36.1.173 |
| Keywords |
"Apartment; Energy Saving Design Standard; Information system on the management of apartment(k-apt); Thermal energy cost" |
| Abstract |
In this study, we analyzed space heating and domestic hot water(DHW) charges from 2017 to 2018 for 151,206 households in 202 apartment
complexes built from 1997 to 2016, in order to evaluate the effectiveness of Korea’s insulation standards reinforcement. The applied
insulation standards were revised three times(in 1987, 2001 and 2010). We used the Anderson-Darling test to review the normality of the
space heating and DHW charges. As a result, each p-value was greater than 0.05 and it followed the normal distribution. The annual average
space heating charges per unit area of apartments with the 1987 insulation standards were 5,237￦/㎡a in 2017 and 5,328￦/㎡a in 2018. The
heating charges with the 2001 standards were 4,827￦/㎡a in 2017 and 4,817￦/㎡a in 2018. Compared to previous standards(1987 standards),
heating charges decreased by 7.8% and 9.6%. Also the heating charges with the 2010 standards were 3,683￦/㎡a in 2017 and 3,734￦/㎡a
in 2018. Compared to previous standards(2001 standards), heating charges decreased by 24.3% and 21.5%. On the other hand, compared to
each previous standards, DHW charges were decreased by 12.2%, 13.6% or increased by 4.6%, 6.9%, which means there’s no correlation
between insulation standards reinforcement and DHW charges. |