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사무소 건물의 방위별 유리의 선택적 적용을 통한 냉난방부하 절감 방안
송일학(Song Il-Hak),권세림(Kwon Se-Lim),송규동(Song Kyoo-Dong) 한국건축친환경설비학회 2012 한국건축친환경설비학회 학술발표대회 논문집 Vol.2012 No.3
Various design factors of the building are requires for saving energy. Glazing can be a good alternative of reducing excessive load of heating and cooling especially in office buildings with high WWR(Window Wall Ratio). In this study, Window 6.0 program developed in LBNL was used to analyze the glazing and EnergyPlus 6.0 developed in DOE was used to predict heating, cooling load. 12 cases of glazing were used selectively including double low-emissivity glazing, double tinted glazing, double reflective glazing, and triple glazing. The results show that the savings of heating and cooling load due to an application of various glazing types with 8 orientations would be up to about 35% compared to double clear glazing in annual period.
상급종합병원 VAV 시스템의 송풍기 제어방식 비교에 따른 에너지 효율성에 관한 연구
송일학(Il Hak Song),이종호(Jong Ho Lhee) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
Indoor comfort and energy saving are important factors in application of VAV system. In order to reduce the energy of VAV system, various control methods of fan can be applied. In this study, variable pitch control and VVVF(Variable Voltage Variable Frequency) control are compared. Experiments were conducted on the axial fan in the AHU operated by the tertiary hospital in Seoul, South Korea, and efficiency and power demand of the fan were derived. Based on the 85% of fan load, VVVF was effective in the low airflow range and variable pitch in high airflow range. Monthly energy consumption of the fan was 8.1% and 25.7% in August and November. In the target building, variable pitch was found to use more power overall than VVVF.
이항주(HangJu Lee),김성민(SungMin Kim),송일학(IlHak Song),장문기(MunKi Jang) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.11
The government has to enforce a policy to reduce greenhouse gas emissions through the improvement of energy demand management and efficiency, zero energy building of them in 2025, the public, we are promoting a full mandate to the private sector . There is a limit to ensure the actual measurement data, using the measured data to "installation guidelines study of public buildings optimum reproduction power generation source and the integration and complex equipment to enhance the dissemination business support effect in 2012", in the building It was analyzed the hourly power usage. As a result of the analysis, the main cause of the power consumption is seen to be an air-conditioning load, it has been analyzed that there are many power consumption in the same peak hours when it is compared with the domestic power demand pattern. This energy savings when cooling and heating load of the building is improved is maximized, also it could be confirmed that it is possible to make many help reduce domestic power peak.
기존 주거건축물 그린리모델링에 따른 에너지절감효과 분석
장문기(MunKi Jang),김성민(SungMin Kim),송일학(IlHak Song),이항주(HangJu Lee) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.11
The purpose of this paper is to derive the energy efficiency improvement of green remodeling. A target building was selected in order to analyze the energy saving of the green remodeling enforcement and then to compare and analyze the energy efficiency improvement of the actual building energy used before and after the green remodeling construction. The conclusion of the study was obtained by the analysis of the energy consumption of three green remodeling buildings. The case A is the building in which the existing windows is replaced by high efficiency windows. The energy consumption fell by 3.9% in the summer, 5.1% in winter, and the maximum energy consumption fell by 2.4%.
건축물에너지효율등급 인증현황분석을 통한 에너지 자립률 고찰
김기태(Ki-Tae Kim),장문기(Mun-Ki Jang),송일학(Il-Hak Song),김성민(Sung-Min Kim) 한국건축친환경설비학회 2017 한국건축친환경설비학회 논문집 Vol.11 No.4
This study provides basic data for implementing zero energy buildings. The targets were analyzed for buildings with buildings in the building energy efficiency rating of 1 ++ or higher. The target building is classified as a passive and active element. The passive element analyses thermal transmittance values for walls, windows, roofs, and floors. And the active element analyzed heating, cooling, hot water supply and new renewable energy. Based on the analysis results, the status of the building was reviewed through box-plot. also Renewable energy sources in solar and geothermal systems have calculated energy output. Most of the target buildings were rated below the minimum grade. To implement zero energy buildings, Improved insulation performance for minimizing the load of buildings and requires an active system design for optimum operation. Based on this study, we will conduct a study on the optimal design of passive and active elements for implementing zero energy buildings.