건축물 에너지 통합지원시스템의 개발을 위한 세부 서비스 정립 및 구축에 대한 연구

김한용(Han-Yong Kim),오수현(Su Hyun Oh),이승언(Seung-Eon Lee),유기형(Ki-Hyung Yu) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6

This paper introduces web-based integrated support system for building energy. A development of the system focuses on providing services, includes a building energy information service, web-based building energy diagnosis and providing detailed building energy information using measurement data to users and ultimately reducing national energy with active participation of citizens. This system contains in the following three main-services. and a detailed building energy information service using measurement data with 11 sub-services. First of all, the total information guide service performs a role of providing energy usage information about reducing building energy. Secondly, a building energy efficiency guide service performs a role as a web-based building energy diagnosis. Users could compare a relative performance level of their own buildings, perform online evaluation of building energy usage and use efficiency diagnosis service with intuitive user interface. Lastly, detailed building energy information service using measurement data performs a role of providing detailed building energy information to user using the cumulative measurement building energy data. Up to now, the study has been performed the design framework of the entire system and development individual components of the system and integrating process of the components will be performed from this year. After constructing this building energy integrated support system, it could be expacted to contribute reducing of national energy effectively.

A Basic Study for Wind Energy of Building Cladding using Computational Fluid Dynamics

정영배(Chung, Yung-Bea) 한국신재생에너지학회 2011 한국신재생에너지학회 학술대회논문집 Vol.2011 No.11

The new and renewable energy today has a great interest in all countries around the world. In special it has need more limit of the fossil fuel that needs of low carbon emission among the social necessary conditions. Recently, the high-rise building demand the structural safety, the economic feasibility and the functional design. The high-rise building spends enormous energy and it satisfied the design in solving energy requirements. The requirements of energy for the building depends on the partly form wind energy due to the cladding of the building that came from the surroundings of the high-rise building. In this study of the wind energy, the cladding of the building was assessed a tentative study. The wind energy obtains from several small wind powers that came from the building or the surrounding of the building. In making a cladding the wind energy forms with wind pressure by means of energy transformation methods. The assessment for the building cladding was surrounded of wind speed and wind pressure that was carried out as a result of numerical simulation of wind environment and wind pressure which is coefficient around the high-rise building with the computational fluid dynamics. In case of the obtained wind energy from the pressure of the building cladding was estimated by the simulation of CFD of the building. The wind energy at this case was calculated by energy transform methods: the wind pressure coefficients were obtained from the simulated model for wind environment using CFD as follow. The concept for the factor of E_f was suggested in this study. C_p=frac{P_{surface}}{0.5{rho}V^{2ref}} E_c=C_p{cdot}E_f Where C_p is wind pressure coefficient from CFD, E_f means energy transformation parameter from the principle of the conservation of energy and E_c means energy from the building cladding. The other wind energy that is E_p was assessed by wind power on the building or building surroundings. In this case the small wind power system was carried out for wind energy on the place with the building and it was simulated by computational fluid dynamics. Therefore the total wind energy in the building was calculated as the follows. E=E_c+E_p The energy transformation, which is E_f will need more research and estimation for various wind situation of the building. It is necessary for the assessment to make a comparative study about the wind tunnel test or full scale test.

건축물 에너지 통합지원시스템 체계 및 에너지 효율화 가이드 구축

오수현(Su Hyun Oh),이승언(Seung-Eon Lee),유기형(Ki-Hyung Yu) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6

This study introduces web-based integrated support system for building energy. A development of the system focuses on providing services, includes a building energy information service, web-based building energy diagnosis and providing detailed building energy information using measurement data to users and ultimately reducing national energy with active participation of citizens. This system contains in the following three main-services. and a detailed building energy information service using measurement data with 11 sub-services. First of all, the total information guide service performs a role of providing energy usage information about reducing building energy. Secondly, a building energy efficiency guide service performs a role as a web-based building energy diagnosis. Users could compare a relative performance level of their own buildings, perform online evaluation of building energy usage and use efficiency diagnosis service with intuitive user interface. Lastly, detailed building energy information service using measurement data performs a role of providing detailed building energy information to user using the cumulative measurement building energy data. Up to now, the study has been performed the design framework of the entire system and development individual components of the system and integrating process of the components will be performed from this year. After constructing this building energy integrated support system, it could be expacted to contribute reducing of national energy effectively.

제로에너지빌딩의 기술 패키지 적용을 위한 에너지성능 평가 도구 비교분석 및 개선방안 제안

조수(Soo Cho),한설이(Seol-Yee Han),성욱주(Uk-Joo Sung),김석현(Seok-Hyun Kim) 한국건축친환경설비학회 2017 한국건축친환경설비학회 논문집 Vol.11 No.4

The research of energy saving in building was studied many case of studies. The zero energy building contained a two concept like a minimum energy consumption and renewable energy facility installation for energy suppling. It means what the envelope of Zero Energy building has high performance of thermal. And the facility of building use independent heating and cooling energy consumption without outer source too. For accomplish the zero energy building, many technology were developed and applied at new building. In case of applying technology, the critical technology is enough for the zero energy building but the joint technology for zero energy building is not enough. Also the supply of the economical technology is difficult. To solving these difficult, the energy performance evaluation tool is used by many researchers in phase of the building design. These tool have a problem about reproducibility by the different input data. That was inputted by each simulator and they divided to level about expertise and situation. So they need to getting an specific information of building and advanced training of simulation. But for accomplish the zero energy building, these tool must be have modified to analysis of the building energy consumption suitably. Absolutely these tool need to update for the precision of analysis results. Additionally the zero energy building design contain a new technology for energy saving through the tool’s extendability. In this study, authors was proposed the technical package and the case of simulation tool was compared for improvement suggestion. And this study was based actual certification and analysis tools like a ECO2. By these result, the authors was proposed two the improvement suggestion ‘User friendly Interface’ and ‘Analysis reliability’.

건축물 에너지 통합지원시스템 및 에너지 효율화 가이드 개발

오수현(Su Hyun Oh),김한용(Han-Yong Kim),이승언(Seung-Eon Lee),유기형(Ki-Hyung Yu) 대한설비공학회 2017 대한설비공학회 학술발표대회논문집 Vol.2017 No.6

This study introduces web-based integrated support system for building energy. A development of the system focuses on providing services, includes a building energy information service, web-based building energy diagnosis and providing detailed building energy information using measurement data to users and ultimately reducing national energy with active participation of citizens. This system contains in the following three main-services. and a detailed building energy information service using measurement data with 11 sub-services. First of all, the total information guide service performs a role of providing energy usage information about reducing building energy. Secondly, a building energy efficiency guide service performs a role as a web-based building energy diagnosis. Users could compare a relative performance level of their own buildings, perform online evaluation of building energy usage and use efficiency diagnosis service with intuitive user interface. Lastly, detailed building energy information service using measurement data performs a role of providing detailed building energy information to user using the cumulative measurement building energy data. Up to now, the study has been performed the design framework of the entire system and development individual components of the system and integrating process of the components will be performed from this year. After constructing this building energy integrated support system, it could be expacted to contribute reducing of national energy effectively.

제로에너지건축물의 공사비 증가분 산출에 관한 연구

심홍석(Hong-Souk Shim),이성주(Sungjoo Lee) 한국산학기술학회 2021 한국산학기술학회논문지 Vol.22 No.1

한국은 건물부문 온실가스 감축 목표 달성을 위한 핵심정책으로 2020년부터 공공부문 신축 건축물을 대상으로 제로에너지건축물 인증 의무화를 시행하였다. 이 논문은 제로에너지건축물을 활성화시키고자 하는 정책 환경에서 건축관계자들이 제로에너지건축 구현에 의사결정을 위해 참조할 수 있는 에너지절감 기술과 경제성 요인을 제시하는 것이 목적이다. 본 연구를 위해 최근 3년간 건축물 에너지효율등급 인증 자료와 공공기관을 대상으로 공사비 세부 내역서 자료를 수집하여 건축물 에너지 항목에 대한 공사비를 분석하였다. 또한, 건축물 에너지효율등급 인증 자료를 바탕으로 베이스라인 건축물의 각 에너지항목별 에너지성능을 도출하였으며, 베이스라인 건축물의 에너지항목에 대해 단계적으로 에너지성능 값을 상승을 시키는 반복적 시뮬레이션을 통해 제로에너지건축물의 에너지항목별 에너지성능 값을 도출하였다. 최종적으로 도출된 베이스라인 건축물과 제로에너지건축물의 에너지성능 값에 조사된 에너지항목별 공사비를 적용하여, 베이스라인 건축물과 제로에너지건축물의 에너지항목별 공사비를 도출하였다. 그 결과 제로에너지건축물을 구현하는 데 조명설비가 10.5%로 에너지절감에 가장 큰 기여를 하며, 냉 · 난방 시스템의 공사비 증가분이 9.1%로 가장 작은 것으로 분석되었다. As a core policy for achieving the goal of reducing greenhouse gas emissions in the building sector, Korea has enforced the mandatory certification of zero energy buildings for new public buildings from 2020. This study suggests energy-saving technologies and economic factors that building officials can refer to for decision-making on the implementation of zero energy buildings. For this study, the construction cost for the energy item of a building was analyzed by collecting the building energy efficiency level certification data and detailed construction cost statement data from public institutions for the last three years. Based on the building energy efficiency certification data, each energy item of the baseline building was derived, and the energy performance of the zero energy building was derived through repetitive simulations by gradually increasing the energy performance value of the baseline building. By applying the analyzed construction cost, the construction cost for each energy item of the baseline and zero energy buildings was derived. As a result, the lighting equipment contributed up to 10.5% energy savings, and the increase in construction cost of the cooling and heating system was at least 9.1%.

건축물 에너지 통합지원시스템 체계 재정립 및 에너지 효율화 가이드 구현

오수현(Su Hyun Oh),이승언(Seung Eon Lee),유기형(Ki-Hyung Yu) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-

This study introduces web-based integrated support system for building energy. A development of the system focuses on providing services, includes a building energy information service, web-based building energy diagnosis and providing detailed building energy information using measurement data to users and ultimately reducing national energy with active participation of citizens. This system contains in the following three main-services. and a detailed building energy information service using measurement data with 11 sub-services. First of all, the total information guide service performs a role of providing energy usage information about reducing building energy. Secondly, a building energy efficiency guide service performs a role as a web-based building energy diagnosis. Users could compare a relative performance level of their own buildings, perform online evaluation of building energy usage and use efficiency diagnosis service with intuitive user interface. Lastly, detailed building energy information service using measurement data performs a role of providing detailed building energy information to user using the cumulative measurement building energy data. Up to now, the study has been performed the design framework of the entire system and development individual components of the system and integrating process of the components will be performed from this year. After constructing this building energy integrated support system, it could be expacted to contribute reducing of national energy effectively.

베트남 기후 및 경제적 여건을 고려한 건물에너지 패키지 적용에 따른 건물에너지 절감효과 분석

윤태균(Yun Tae Gyun),신재윤(Shin Jae Yoon),강석표(Kang Seok-pyo) 한국태양에너지학회 2022 한국태양에너지학회 논문집 Vol.42 No.5

Due to the construction industry, the increase in energy demands from the population, and economic growth in Vietnam, the need for energy efficient buildings has increased. An analysis of Vietnam’s regulations and standards related to building energy shows that Vietnam’s current technology level is similar to Korea in the 1980s, so it needs to upgrade its technology. Using Korea’s advanced energy efficient building technology, it will be possible to satisfy Vietnam’s need for energy efficient buildings. In a prior study, the baseline data were calculated using a building energy simulation program with Vietnam’s weather data and input values provided by the most recent Vietnam building energy standards (QCVN 09:2017:BXD). Then, the optimized input combination of building energy packages was derived to achieve energy savings of 60% by integrating the building energy simulation program (Energyplus) with a programming language (Python). Vietnam’s climate characteristics vary by region, so simulations were run with three sets of weather data (Northern: Hanoi, Central: Da Nang, Southern: Ho Chi Minh). As a result, the optimized input combination could reduce building energy usage by about 55% compared to the baseline model. In this study, building energy savings were analyzed using simulated data by modeling a real example building in Vietnam before the building energy package was installed.

BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS

Cho, Chung-Suk,Chen, Don,Woo, Sungkwon Korean Institute of Building Information Modeling 2012 KIBIM Magazine Vol.2 No.1

With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.

BUILDING INFORMATION MODELING (BIM)-BASED DESIGN OF ENERGY EFFICIENT BUILDINGS

ChungSuk Cho,Don Chen,Sungkwon Woo 한국BIM학회 2012 KIBIM Magazine Vol.2 No.1

With the increased awareness of energy consumption as well as the environmental impact of building operations, architects, designers and planners are required to place more consideration on sustainability and energy performance of the building. To ensure most of those considerations are reflected in the building performance, critical design decisions should be made by key stakeholders early during the design development stage. The application of BIM during building energy simulations has profoundly improved the energy analysis process and thus this approach has gained momentum. However, despite rapid advances in BIM-based processes, the question still remains how ordinary building stakeholders can perform energy performance analysis, which has previously been conducted predominantly by professionals, to maximize energy efficient building performance. To address this issue, we identified two leading building performance analysis software programs, Energy Plus and IES <Virtual Environment> (IES <VE>), and compared their effectiveness and suitability as BIM-based energy simulation tools. To facilitate this study, we examined a case study on Building Performance Model (BPM) of a single story building with one door, multiple windows on each wall, a slab and a roof. We focused particularly on building energy performance by differing building orientation and window sizes and compared how effectively these two software programs analyzed the performance. We also looked at typical decision-making processes implementing building energy simulation program during the early design stages in the U.S. Finally, conclusions were drawn as to how to conduct BIM-based building energy performance evaluations more efficiently. Suggestions for further avenues of research are also made.