• 한국건축시공학회지
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• 제12권3호
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• pp.266-274
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• 2012

The annual expenditure on diesel oil and heavy oil in the construction sector is the second largest among all industrial sectors. To meet the government's greenhouse gas reduction targets, the construction sector has until 2020 to cut its emissions by 7.1%. Unlike other high-tech industrial sectors, the construction sector has a fairly limited scope for technological improvements, which hampers its capacity to achieve the reduction target. To reduce emissions, it is necessary to establish an energy and emissions strategy at the project planning stage, and energy use and the resulting emissions must be estimated. This research aims to establish an estimation methodology for greenhouse gas emissions at the planning stage of construction projects. To estimate the project-related emissions, this research indentified the relationship among the types of emissions in a cross-sectional matrix form, and then provided a set of calculation methods for total project related emissions.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.205-207
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• 2013

In a situation that building energy consumption is increasing worldwide, the research utilizing BIM technology to analyze building energy has been actively conducted. On the other hand, data input method of the building energy analysis has been still manually entered. This paper proposed a improved input method of required information for building energy analysis using the ECO2-OD program. As a result, although some required information of BIM based design software could be almost entered when it comes to general information and architectural sector, it has a problem to be handled in HVAC sector. Therefore, in the both of general and architectural sectors, the BIM information from the BIM-based design software could be directly used to automatically and systematically input the information. Future research should be studied the algorism and method in connection with data exchange to utilize input method of ECO2-OD from BIM data.

• Asian Journal of Atmospheric Environment
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• 제8권1호
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• pp.48-58
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• 2014

Energy efficiency is vital to improve energy security, environmental and social sustainability, and economic performance. Improved energy efficiency also mitigates climate change by lowering greenhouse gas (GHG) emissions. Buildings are the single largest industrial consumer of energy and are therefore key to understanding and analyzing energy consumption patterns and the opportunities for saving energy at the district level in urban environments. This study focused on two representative boroughs in the major metropolitan area of Seoul, South Korea as a case study: Gandong-gu, a typical residential district, and Jung-gu, a typical commercial district. The sources of the energy supplied to the boroughs were determined and consumption patterns in different industry sectors in Seoul used to identify current patterns of energy consumption. The study analyzed the energy consumption patterns for five different building categories and four different sectors in the building using a bottom-up energy modeling approach. Electricity and gas consumption patterns were recorded for different building categories and monthly ambient temperatures in the two boroughs. Finally, a logarithmic equation was developed to describe the correlation between commercial activity and cooling energy intensity in Jung-gu, the commercial district. Based on these results, recommendations are made regarding the current energy consumption patterns at the district level and government energy policies are suggested to reduce energy consumption and, hence, greenhouse gas emissions, in both commercial and residential buildings.

• 한국태양에너지학회 논문집
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• 제34권1호
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• pp.8-18
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• 2014

Building simulation is used in a variety of sectors. In its early years, building simulation was mainly used in the design phase of a building for basic functions. Recently, however, it has become increasingly important during the operating phase, for commissioning and facility management. Most building simulation tools are used to estimate the thermal environment and energy consumption performance, and hence, they require the inputting of hourly weather data. A building simulation used for prediction should take into account the use of standard weather data. Weather data, which is used as input for a building simulation, plays a crucial role in the prediction performance, and hence, the selection of appropriate weather data is considered highly important. The present study proposed a technique for generating real-time weather data files, as opposed to the standard weather data files, which are required for running the building simulation. The forecasted weather elements provided by the Korea Meteorological Administration (KMA), the elements produced by the calculations, those utilizing the built-in functions of Energy Plus, and those that use standard values are combined for hourly input. The real-time weather data files generated using the technique proposed in the present study have been validated to compare with measured data and simulated data via EnergyPlus. The results of the present study are expected to increase the prediction accuracy of building control simulation results in the future.

• 설비공학논문집
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• 제16권11호
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• pp.1068-1076
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• 2004

Technology on the proportional integral (PI) control have grown rapidly owing to the needs for the robust capacity of the controllers from industrial building sectors. However, PI controller requires tuning of gains for optimal control when the outside weather condition changes. The present study presents the possibility of reinforcement learning (RL) control algorithm with PI controller adapted in the HVAC system. The optimal design criteria of RL controller was proposed in the Environment Chamber experiment and a theoretical analysis was also conducted using TRNSYS program.

• KIEAE Journal
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• 제9권4호
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• pp.3-10
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• 2009

It is not an overstatement to say the factory are the number one cause in creating environmental load. However, only a few studies have been done upto this date on environmentally friendly factory. Thus, This study is to present the characteristics of environmentally friendly factory. A survey of current literatures and cases show the characteristics of environmentally friendly factories and buildings and environment assessment method and plan. To better measure the environmentally friendly qualities as written in literature across the globe, classification system was constructed. The classification system was made and important factors were found based on the precedent paper on environmentally friendly building plan and environment assessment method at building and cases and abroad in the literature review. The classification used 4 different sectors : Land & Transportation, Architectural Planning Technique, Environment & Equipment, Energy & Material. Within these 4 sectors 33 discrete factors are applied to the factory according to literature and case review and specialist advice.

• 토지주택연구
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• 제3권3호
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• pp.263-270
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• 2012

정부는 2009년부터 녹색뉴딜사업의 일환으로 국토 에너지 수자원 건물 등의 각종 기본정보를 체계적으로 일원화시키고 통합 DB를 구축하는 녹색국가 정보인프라 사업을 추진 중에 있다. 이와 관련하여 건물부문의 에너지 절약과 온실가스 저감 대책 마련에 효율적으로 대응하기 위한 수단으로, 건물단위의 에너지 소비량 관리를 기본 골자로 하는 건물에너지 통합관리시스템 구축을 진행 중에 있다. 본 시스템의 활용성을 증대시키기 위해서는 기존의 에너지 정책 및 제도와의 관계를 명확히 하고 상호보완적인 요소를 도출하는 것이 요구되며 이는 통합관리시스템의 구축방향성과도 밀접한 관계를 가진다. 따라서 본 연구에서는 장기적 측면에서 국가 건물에너지 통합관리시스템의 효과적인 활용방안을 도모하기 위하여 현재 진행중인 관련 정책 ,제도 및 통계자료 등과의 연계성을 도출하고, 통합관리시스템의 구축방안 및 방향성을 도모하고자 한다. 구체적으로는 온실가스 관련 정책, 녹색 건축물 보급 확대 방안 및 통계자료 등의 사례를 분석하고 통합관리시스템을 통한 해당 정책 및 제도의 개선점을 개선, 보완할 수 있는 방안을 제시함으로서 통합관리시스템의 구축과 운영방안 수립의 당위성을 재고시키며 향후 녹색뉴딜 사업의 육성을 도모하고자 한다.

• KIEAE Journal
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• 제10권1호
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• pp.57-64
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• 2010

Electric energy is indispensible of the development of the industrial and living sector. Among the energy sectors, the building area shares 20% of the produced electric power in Korea. As we plan to supply the apartment, we need to forecast the required amount of the electric energy and supply the infrastructure to apartment for the lighting, cooling. Nonetheless, it is not easy to forecast the required amount of the electric energy, considering the management aspect, building physical aspect and social-geographic aspect. In this paper, it studied the estimation model of the electric energy, reflecting the affecting variables such as total area, number of household, geography and so on. The estimation model is proposed in 3-types which explained in central heating, individual heating and district heating, and each type have two estimation model, reflecting the affecting variable and corelation between variables to eliminate the muticolinearity. The unit of electric energy consumption per area and year is similar in three heating type and the results are as follows; the central heating is $34.446kWh/yr{\cdot}m^2$, individual type is $35.756446kWh/yr{\cdot}m^2$ and district heating is $34.285446kWh/yr{\cdot}m^2$.

• 한국건설관리학회논문집
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• 제13권6호
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• pp.3-12
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• 2012

최근 민간건축 경기 침체가 거듭되면서 '신축' 시장 대비 비용 절감 효과는 물론, 자원절약 및 환경보호 효과를 거둘 수 있다는 긍정적인 반응과 함께 에너지성능향상형 리모델링 시장의 규모가 확대되고 있다. 서울시의 경우 2008년 시범사업을 시작으로 기존 건물에 대해 '건물에너지이용합리화사업(BRP)'를 추진, 시설개선사업을 통해 에너지 절감 및 이용 효율을 향상시킬 수 있도록 융자지원을 하고 있다. 2012년 보도자료에 따르면 254개소의 민간건축물이 참여, 친환경녹색건축물로 조성됨에 따라 온실가스 4만 1천톤/년을 감축, 석유환산 시 1만4천 TOE의 절감에 해당되어 매년 75억원의 에너지비용 절감효과를 보이고 있다고 한다. 본 연구는 기존 건물의 에너지 효율화 대책으로 리모델링 시 우선적으로 고려해야 할 에너지성능향상 방안 중 건축적 요소인 외피를 연구범위로 설정, 그 방안을 모색하였다. 그리고 해석모델에 적용, 분석함으로써 기존 건물의 에너지 절감효과, 즉 건물의 에너지성능향상 효과를 제시하였다. 연구의 범위가 외피 리모델링만을 고려한 건물의 에너지사용량을 감소시키는 단열보강 등의 목적지향적인 방법일 수 있겠으나, 대부분의 비주거용 업무시설의 경우 임대형이라는 점을 고려하였을 때 건축적 기술만을 적용한 방법의 모색은 실제 리모델링 시 가장 보편적인 기초자료가 될 수 있으므로 연구의 의미가 있다고 할 수 있다.

• KIEAE Journal
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• 제12권3호
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• pp.89-94
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• 2012

The international community is paying close attention to the climatic changes caused by the meteorological anomalies. In response to such phenomena, after the adoption of the United Nations Framework Convention on Climate Change in 1992, efforts to actively respond to the meteorological changes are proliferating all over the world; even in the Republic of Korea, the issue to tackle the meteorological changes has emerged as a top-priority national agenda. In the year of 2008, after the declaration of the low-carbon, green-growth paradigm by the government, the UNFCCC COP15 has announced a 30% reduction target of the emission of the greenhouse gases by 2020 as compared to the "Business As Usual, BAU" and has also confirmed, as a commitment plan to achieve reduction in the emission of greenhouse gases, the reduction target of greenhouse gases for all sectors, industries and years. (26.9% for buildings) Since the construction of the new apartment houses in the year of 2001, the "Building Energy Efficiency Rating", has been applied to newly constructed building complexes, built in 2010; the accumulated emission reduction has been evaluated at around 450,000toe and the accumulated carbon dioxide emission reduction is at $826,000tCO_2$ And through the prediction of these values under various scenarios (New construction, new construction / expansion of existing uses, when transferred to 1stgrade), the effects on the degree of reduction of greenhouse gases by the increased certification of the Building Energy Efficiency Rating are an alyzed and it is our aim to express the importance of the certification system capable of carrying out a quantitative evaluation of the building energy in order to establish the strategy to reduce the emission of carbon dioxide.