• 한국콘텐츠학회논문지
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• 제19권12호
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• pp.203-214
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• 2019

건축물 차원의 지속가능성을 확보하고 환경부하를 줄여 에너지 사용과 탄소배출을 저감하기 위한 목적으로 세계 각국에서 녹색건축인증이 시행되고 있다. 우리나라는 2002년부터 건축물만을 대상으로 녹색건축인증인 G-SEED를 시행하고 있으나 외국의 경우 평가대상을 건축물에서 근린단위, 도시, 기반시설로 확대하고 있다. 이에 본 연구에서는 건축물 외부 공간인 근린규모로 평가대상을 확대한 녹색건축인증제도의 구축방향 수립을 목적으로 설정하였다. 평가체계 수립을 위해 본 연구에서는 정의 및 목표, 평가체계 구분, 적용범위, 평가항목, 평가방식 및 등급, 관련제도와의 관계 등의 비교항목을 설정하고 대표적인 근린단위 녹색건축인증기준인 LEED-ND(미국), BREEAM Communities(영국), CASBEE-UD(일본)를 분석하였다. 그리고 그 결과를 바탕으로 국내 근린단위 녹색건축인증을 위한 평가범위, 대상, 평가항목 수립의 방향을 제시하였다.

• 한국산학기술학회논문지
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• 제15권10호
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• pp.6354-6365
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• 2014

본 논문은 국내 녹색건축물인증제도와 독일의 지속가능한 건축물 인증제도의 평가항목을 비교하여 국내인증제도의 발전방향을 제시하는 것을 목적으로 한다. 오늘날 세계적으로 많은 친환경건축물 인증제도가 시행되고 있으나 상호 비교 가능한 평가항목은 제시되지 않은 상황이다. 이에 국제표준규격에서는 지속가능한 건축물에 대한 평가기준을 마련하였고 독일의 지속가능한 건축물 인증제도는 이러한 평가기준을 받아들인 최초의 인증기준이다. 녹색건축물인증제도를 독일의 지속가능한 인증제도와 비교한 결과 녹색건축물인증제도의 평가내용에는 환경측면(62.6%) 이외의 사회문화와 기능측면(25.4%), 경제측면(3.0%)의 평가항목을 가지고 있는 것으로 나타났다. 이는 앞으로 녹색건축물인증제도의 사회측면 및 경제측면의 평가항목개발에 중요한 방향을 제시한다.

• 신재생에너지
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• 제4권2호
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• pp.45-51
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• 2008

The fuel cell system is environment-friendly and energy efficient system. Especially, the fuel cell cogeneration systems providing heat and electricity to buildings have been developed and applied to a lot of sites in the world to cope with the global warming and $CO_2$ emission problem. This paper presents the result of study on the economic evaluation with super-micro fuel cell (SMFC) cogeneration system by varying the floor area ($132m^2{\sim}331m^2$) of the house, whose system capacity ranges from 0.10 kWe to 0.50 kWe. The electricity demand, heat demand, saved energy cost, and the simple pay-back period have been simulated for the various capacities of fuel cell cogeneration system. As a result, this study suggests the fuel cell system’s capacity decision strategy for a given house area. Contrary to conventional design assumptions, the smaller capacity fuel cell cogeneration system is appropriate for the house of large floor area to defense the progressive electricity tax, and the larger capacity fuel cell cogeneration system is appropriate for the house of small floor area to sell the electricity.

• 한국수소및신에너지학회논문집
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• 제35권3호
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• pp.310-317
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• 2024

In this study, Aimed to develop technology to ensure the safety of firefighters responding to hydrogen incidents and to review the performance of protective super absorbent polymer (SAP) that could help maintain the thermal protection performance of equipment with protective properties. Tests were conducted, including bench-scale and full-scale thermal exposure tests, to review the protective performance of SAP using firefighting garments commonly used by firefighters. The results showed that without SAP application, 2nd degree burn areas were measured at 9.4%, and 3rd degree burn areas at 7.7%. In contrast, when SAP was applied, the percentage of 2nd degree burn areas decreased to 7% on the lower body, and there was no temperature rise causing 3rd degree burns. Therefore, it is expected that by applying SAP to the outer surface of firefighter garments, even under temporarily high temperature conditions such as hydrogen jet flames, thermal damage to firefighters could be protected for a certain period.

• 한국실내디자인학회논문집
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• 제21권3호
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• pp.194-202
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• 2012

The purpose of this study is to extract environment-friendly planning elements to apply in Korea by putting together and reclassifying four foreign environment-friendly certification systems related to regeneration spaces - LEED in USA, CASBEE in Japan, BREEAM in England and BEAM in Hong Kong - and analyze and evaluate domestic and foreign spaces which were certified as Environment-friendly spaces in order to offer plan guidelines to raise awareness of the importance of environment-friendly elements in regeneration spaces and to encourage them. The concept and the characteristics of green building were studied through documentary survey. In addition, green certification system of the present domestic new spaces and foreign regeneration spaces was studied and assessment tools for indoor regenerated spaces-related green certification system were developed. With checklists which are developed in this study, level of going green of foreign spaces certified environment-friendly was assessed. Based on the results of this study, conclusions are as follows. As a result of case research of spaces-certified green of Hong-Kong's existing buildings with a developed checklist, application of general assessment part was all alike, but that of detailed assessment part was different. However, Hong Kong showed superiority in lighting energy saving, separate collection of recyclable domestic waste, recycling by-product and management. In addition, Hong Kong applied eco-friendly planning elements maintaining buildings in their condition as possible as it could with management, use of green program, replacement with high efficiency lighting, monitoring system, installation of recycling bins and energy saving by attaching reflective film.

• 한국건축시공학회지
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• 제11권3호
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• pp.247-255
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• 2011

한국은행에서 2000년도에 발행된 산업연관표를 적용한 주요 건축자재의 에너지소비량과 $CO_2$ 배출에 대한 원단위 DB는 있지만 2005년, 2007년에 발행된 산업연관표를 이용한 원단위 DB는 없는 실정이다. 본 연구에서는 최근에 발행된 2005년, 2007년도 산업연관표를 이용하여 주요 건축자재에서 발생되는 에너지소비량 및 $CO_2$ 배출 원단위 값을 산정하고자 한다. 주요 건축자재의 에너지소비량 및 $CO_2$ 배출원단위 산출을 위한 방법은 산업연관표를 이용한 DB 구축 방식을 바탕으로 산출하였으며, 건설현장에서 주로 사용되는 16가지의 건설자재는 선별하여 적용하였다. 기존 연구결과에서 제시한 2000년도 산업연관표를 적용하여 산출된 원단위 DB 값과 비교한 결과 근소한 차이를 보이고 있어 본 연구의 산출방법이 적정한 것으로 판단하였다. 2005년, 2007년도 산업연관표를 이용하여 산출한 에너지소비량과 $CO_2$ 배출 원단위 값은 감소세를 보이고 있는 것으로 나타났으며, 시멘트와 철근을 주원료로 하는 자재에서 가장 많은 에너지소비량 및 $CO_2$ 배출 원단위 값을 나타났다. 본 연구의 결과를 통해 국내 실정에 적합한 건설자재 생산단계에서 발생되는 환경부하의 간접적인 예측이 가능할 것으로 사료된다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 춘계학술대회
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• pp.280-283
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• 2007

The first grid-connected, building-integrated transparent amorphous silicon photovoltaic installation has been operated since October 2004 in Yongin, Korea. The 2.2kWp transparent PV system was applied to the facade of entrance hall in newly constructed KOLON E&C R&D building. The PV module is a nominal 0.98m ${\times}$ 0.95m, 10% transparent, laminated, amorphous(a-Si) thin-film device rated at 44 Wp per module. To demonstrate the architectural features of thin film PV technologies for daylighting application, transparent PV modules are attached to the building envelope with the form of single glazed window and special point glazing(SPG) frames. Besides power generation, the 10% transmittance of a-Si PV module provides very smooth natural daylight to the entrance hall without any special shading devices for whole year. The installation is fully instrumented and is continuously monitored in order to allow the performance assessment of amorphous silicon PV operating at the prevailing conditions. This paper presents measured power performance data from the first 12 months of operation. For the first year, annual average system specific yield was just 486.4kWh/kWp/year which is almost half of typical amorphous silicon PV output under the best angle and orientation. It should be caused by building orientation and self-shading of adjacent mass. Besides annual power output, various statistical analysis was performed to identify the characteristics of transparent thin film PV system.

• Advances in Computational Design
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• 제5권2호
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• pp.127-146
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• 2020

Building Information Modeling (BIM) is increasingly used throughout the facility's life cycle for various applications, such as design, construction, facility management, and maintenance. For existing buildings, the geometry of as-built BIM is often constructed using dense, three dimensional (3D) point clouds data obtained with laser scanners. Traditionally, as-built BIM systems do not contain the material and textural information of the buildings' elements. This paper presents a semi-automatic method for generation of material and texture rich as-built BIM. The method captures and integrates material and textural information of building elements into as-built BIM using thermal infrared sensing (TIS). The proposed method uses TIS to capture thermal images of the interior walls of an existing building. These images are then processed to extract the interior walls using a segmentation algorithm. The digital numbers in the resulted images are then transformed into radiance values that represent the emitted thermal infrared radiation. Machine learning techniques are then applied to build a correlation between the radiance values and the material type in each image. The radiance values were used to extract textural information from the images. The extracted textural and material information are then robustly integrated into the as-built BIM providing the data needed for the assessment of building conditions in general including energy efficiency, among others.

• Earthquakes and Structures
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• 제22권2호
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• pp.185-201
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• 2022

Structural Health Monitoring (SHM) is used to provide reliable information about the structure's integrity in near realtime following extreme incidents such as earthquakes, considering the inevitable aging and degradation that occurs in operating environments. This paper experimentally investigates an integrated wireless sensor network (Wi-SN) based monitoring technique for damage detection in concrete structures. An effective SHM technique can be used to detect potential structural damage based on post-earthquake data. Two novel methods are proposed for damage detection in reinforced concrete (RC) building structures including: (i) Jerk Energy Method (JEM), which is based on time-domain analysis, and (ii) Modal Contributing Parameter (MCP), which is based on frequency-domain analysis. Wireless accelerometer sensors are installed at each story level to monitor the dynamic responses from the building structure. Prior knowledge of the initial state (immediately after construction) of the structure is not required in these methods. Proposed methods only use responses recorded during ambient vibration state (i.e., operational state) to estimate the damage index. Herein, the experimental studies serve as an illustration of the procedures. In particular, (i) a 3-story shear-type steel frame model is analyzed for several damage scenarios and (ii) 2-story RC scaled down (at 1/6th) building models, simulated and verified under experimental tests on a shaking table. As a result, in addition to the usual benefits like system adaptability, and cost-effectiveness, the proposed sensing system does not require a cluster of sensors. The spatial information in the real-time recorded data is used in global damage identification stage of SHM. Whereas in next stage of SHM, the damage is detected at the story level. Experimental results also show the efficiency and superior performance of the proposed measuring techniques.

• KIEAE Journal
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• 제14권1호
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• pp.91-99
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• 2014

Environmental issues have become gradually important around the globe, which has increased society needs for the environment-friendly construction. In an effort to realize the environmental protection and energy efficiency, the British BREEAM has been developed, which is followed by the USA LEED, Japanese CASBEE and other national certification systems based on their own conditions. In this end, the Republic of Korea has implemented its own certification system named GBCS(Green Building Certification System) in 2002, and now actively promoted the G-SEED(Green Standard for Energy and Environmental Design) after GBCS modifications and amendments. The purpose of this study is to identify possible problems to be encountered in the process of the G-SEED for office facilities and to provide relevant solutions. In this end, three office facilities have been selected, which had obtained the G-SEED. This study has analyzed reasons of change of assessment scores between the preliminary certification and the main certification phases, has identified problems through in-depth interviews with practicing professionals(design, construction, eco-friendly consulting firm) and then has reached a conclusion for improvements. This study will be possibly used as reference materials for improvements of the green building certification system, and further detailed studies on respective parts will be required for improvements.