Paper Conference

Proceedings of ASim Conference 2012: 1st Asia conference of IBPSA-China, Japan, Korea


Energy performance analysis to implement the low-energy office building in Korea

Jihyun Kim, Yongjun Lee, Eunjoo Oh, Jae Sik Kang, Gyeong-Seok Choi

Abstract: These days, according to spreading the cognition and effort to decrease the energy consumption and enforcing the regulations in building energy fields, it is required to phase in the developed design methods and to develop the related technologies to cope with the tendency for the energy saving. Korean government announced the Carbon Reduction Target in 2020 which reduces 30% energy consumption compared to BAU (Business As Usual) on August, 2009. Also Korean government suggested "Low Carbon Green Growth". It is not only the passive concept that reduces carbon but active concept that advances new growth power. In building area, energy conservation roadmap was suggested as like regulation of total energy consumption in 2010, to reduce 30% of residential buildings' energy consumption in 2012, 60% in 2017, 60% of non-residential buildings' in 2020 and obligation of zero energy building in 2025. Korean construction companies compete for hegemony in related industry. We have been doing a research project “The demonstration project for convergence and integration technologies to implement the low-energy building” funded by Korean government since 2010. Our objective is to demonstrate the energy saving within the reasonable cost rising in a real office building. To do this, we planned 19ᵗʰ floor office building and are constructing now. Our energy conservation technologies will be installed from 15ᵗʰ to 19ᵗʰ floor, and compared to other reference floor (1ˢᵗ – 14ᵗʰ). Energy performance analysis was conducted to verify that our technologies can satisfy our objective. In this project, we installed various technologies. So, most efficient alternatives (combination of conservation technologies) must be deduced by energy performance analysis. This study proposes a new analysis approach to understand the effect of factors relevant to energy consumption and to predict the energy performance of buildings by Design of Experiments. As a result, this study derived a relationship which predicts the energy consumption of a building according to changes of various factors * Corresponding author email: (insulation, solar shading, infiltration, and ventilation performance). Using this means of reduction, this study formulates an envelope design for existing building in the construction stage. This will also be verified through a comparison of the analysis results and actual measurements.
Pages: 474 - 481