• Research Article

    Development of Construction Cost Prediction Model of Boiler Using Multiple Regression Analysis

    다중 회귀 분석을 활용한 보일러의 공사비 예측 모델 개발

    Lee, Jin-Hyun, Kim, Sun-Sook, Cho, Young-Hum, Park, Kyoung-Woo

    이진현, 김선숙, 조영흠, 박경우

    In Korea, an integrated support system has been developed to support decision-making by clients and the persons concerned of building energy performance ... + READ MORE
    In Korea, an integrated support system has been developed to support decision-making by clients and the persons concerned of building energy performance improvement considering building energy performance and economics when designing and remodeling buildings. Among the programs, the ‘Energy Efficiency Support Program’ provides the optimal building energy efficient measures by reflecting the user’s requirements based on the economic evaluation standard model and economic evaluation DB. In order to utilize the integrated support system under development, Energy Efficient Measure(EEM)s, economic evaluation DB and evaluation methods were developed using domestic related laws and building energy simulation programs. The constructed DBs have a large amount of data, so the simulation response time for estimating energy requirements through simulation is large, and it is difficult to evaluate by applying a value other than the performance of the constructed DB. Therefore, in this study, to increase the utilization of the DB, a model for predicting the construction cost of the boiler was developed based on the EEMs and economic evaluation DB of non-residential buildings using a multi-regression model. Also, the developed model was verified and applied to actual non- residential buildings to examine its usability. - COLLAPSE
    August 2020
  • Research Article

    Analysis of Energy Consumption Characteristics Per Climatic Zones by Window Design Variables using Prototype Office Building Model

    표준 업무용건물 모델을 활용한 창호설계변수의 기후존별 총 에너지 소비영향 분석

    Park, Sang-Hyeok, Seo, Dong-Hyun

    박상혁, 서동현

    In non-residential buildings, the impact of windows on overall building energy performance is significant. However, domestic commercial and office buildings do not ... + READ MORE
    In non-residential buildings, the impact of windows on overall building energy performance is significant. However, domestic commercial and office buildings do not effectively reflect climate characteristics and various thermal and visual aspects of windows due to incomplete building code and lack of reference data for design practices. In this study, the non-residential prototype building energy model developed in 2016 is used to perform parametric simulation to present the design guides for key window design variables for each climate zone. Although the guide is not fully inclusive for all non-residential building, it is believed that at least the possibilities of this procedure will be verified. To this end, 1) the existing related research literatures were analyzed to confirm the pros and cons and the current best research results in Korea, and 2) an energy modeling overview and a parametric simulation plan were established to describe the detailed simulation procedure. 3) Through the simulation result analysis, the energy consumption change according to the window design variables was analyzed in the first step, and the energy performance additionally applicable external shade and daylight control was analyzed in the second step. 4) Finally, optimal window design variable values for each climate zone were derived. As a result, in the central and southern zones, the SC value with the minimum energy consumption was determined according to the U-factor and WWR of the window. In some cities in the southern and Jeju zones, energy performance was determined by the SC value rather than the U-factor. The external shade and daylight control system additionally enabled energy savings of up to 6%, whereas the determined design variable value was not significantly changed. - COLLAPSE
    August 2020
  • Research Article

    A Study on the Calculation of the Energy Independence Rate of the District Unit through a Review of PV System Installation

    일조 분석을 통한 태양광 발전설비 설치 검토 및 지구단위 에너지자립률 산정 연구

    Lee, Do-Hyung, Yoon, Jong-Ho, Mun, Jung-Hyun

    이도형, 윤종호, 문정현

    The Korean government plans to implement the zero-energy building mandatory in phases from January 2020 starting with public buildings and is pushing ... + READ MORE
    The Korean government plans to implement the zero-energy building mandatory in phases from January 2020 starting with public buildings and is pushing for beyond building units to district units. This study is to analyze the meet of the energy independence rate for zero energy of the Guri-Galmae Station District and Seongnam-Bokjeong 1 District, which is the subject of the district-level zero energy pilot project, can be met. As a result of the analysis, it was found that in the Guri-Galmae Station District, the sunlight condition is excellent, so that the energy independence rate from buildings could be secured to 18.33%. If the public land secured an additional 2%, the energy independence rate of the district could meet more than 20%. In the case of Seongnam-Bokjeong 1 District, it was analyzed that it can secure 16.64% from buildings due to the adverse condition of sunlight due to the Yeongjang mountain on the south side of the district. Therefore, an additional 4% energy independence rate from the public land is required to satisfy the district’s energy independence rate of more than 20%. To build zero-energy in urban and district units, government policies and incentive systems should be in place to induce voluntary participation from the private sector. - COLLAPSE
    August 2020
  • Research Article

    A Study on the Lighting Energy Saving of Indoor Louver Type Concentrating Daylighting System

    실내 루버형 집광채광시스템의 조명에너지 절감에 대한 연구

    Shin, Sang-Yong, Sung, Uk-Joo

    신상용, 성욱주

    The indoor louver type concentrating daylighting system, which is one of the renewable energy systems, can reduce the consumption of lighting energy ... + READ MORE
    The indoor louver type concentrating daylighting system, which is one of the renewable energy systems, can reduce the consumption of lighting energy. But it has few research cases evaluating the lighting energy saving performance. In this study, the LED dimming control system was applied to analyze the indoor environment and lighting energy saving effect for 3 days during the fall. The visual environment performance was compared with KS average indoor illumination range of office and uniformity of BREEAM. The lighting energy saving rate was calculated to be 67% to 87% per hour and 52% to 61% per day, and it varies depending on the external illuminance and time. Afterwards, it will be possible to quantify changes due to changes in outdoor illuminance when increasing statistical data, as well as research on lighting energy saving performance according to the angle of slat and whether automatic control is applied. - COLLAPSE
    August 2020
Journal Informaiton Journal of Korean Institute of Architectural Sustainable Environment and Building Systems Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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