Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Review on the Effectiveness of Apartments According to Insulation Reinforcement of Energy Saving Design Standard - Energy Cost Analysis of Space Heating and Domestic Hot Water -

에너지절약설계기준의 단열 변화에 따른 공동주택 실효성 검토 - 난방 및 급탕에너지 사용금액 분석 -

  • Received : 2019.11.05
  • Accepted : 2020.01.08
  • Published : 2020.01.30
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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.

Keywords

Acknowledgement

Supported by : KETEP

본 연구는 2019년도 산업통상자원부의 재원으로 KETEP의 지원을 받아 수행한 연구과제입니다. (과제번호:20173030083430)

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