• KIEAE Journal
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• 제14권3호
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• pp.105-109
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• 2014

The recent rising living standards, environment-friendly, well-being and health aspects of life in the basic gratification, as well as the desire for a pleasant environment emotionally environmentally friendly way of external space or industrial interest in the indoor environment, the manifestation. In particular, the biggest problem of the indoor environment has been emerged as a Sick House Syndrome indoor space that is provided to the building materials, and the impact on the domestic and the indoor environment, and clean the house in a health standards are specified as laws. The performance rating and the various materials to create environmentally-friendly standards for building materials. The more detail, Porous clay material, toxic substances released by applying the high humidity and the water itself, and to absorb the moisture, if the emissions, without a separate device, to maintain a comfortable indoor environment and at the same time, one of the causes of Sick House Syndrome breaking down harmful substances to absorb a comfortable indoor environment to maintain an environmentally-friendly building interior material studies. It is aimed at the development to multi-functional high performance eco-friendly construction materials, rather than through one feature performance, identify key features for national and international eco-friendly building materials can exert Water Vapour Adsorption raw, decomposed materials for the application and selection.

• KIEAE Journal
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• 제9권2호
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• pp.53-58
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• 2009

There are increasing developments and uses of functional building materials are recently developed and introduced to the test method for the materials. Especially, moisture problem has a major role are also being established in indoor air quality problems. The purpose of this study is to evaluate the water vapour adsorption/desorption property of a ceiling material. The variation of the temperature and moisture were measured with the application materials by mock up test based on JIS 1470-1. The result shows that water vapour adsorption/desorption property of ceiling material is appeared in changes of moisture adsorption and desorption in comparison with that of a general ceiling material. Therefore, in case of decreasing and increasing in humidity, these materials can be used as an finishing material to sustain comfort condition.

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
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• pp.475-479
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• 2012

Thermal energy storage (TES) systems using Microencapsulated phase change material (MPCM) have been recognized as one of the most advanced energy technologies in enhancing the energy efficiency and sustainability of buildings. We examined a way to incorporate MPCMs with building materials through application for wood-based flooring. Wood-based flooring is commonly used for floor finish materials of residential buildings in Korea. However, wood-based flooring has not performed the characteristic of heat storage. This study is aimed at manufacturing high thermal efficiency wood flooring by increasing its heat storage using MPCM. As a result, this study confirmed that MPCM is dispersed well in adhesive through the scanning electron microscopy analysis. From the differential scanning calorimetry analysis, it can be confirmed that this composite has the characteristic of a thermal energy storage material. Also, we analyzed how this composition was formed by physical combination through the Fourier transform infrared analysis. Also, we confirmed the bonding strength of the material by using the universal testing machine.

• KIEAE Journal
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• 제13권2호
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• pp.53-60
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• 2013

This study examined the building envelope structure used in small housings near urban area which have not good energy source in relation to the application of passive design for energy saving of small-sized architectural design firms in local cities and aimed to provide the basic materials of future design direction of designers and housing owners by analyzing economy of a project in order to know the amount of energy saving and additional expenses depending on the building envelope pattern. As a result of comparing and examining the energy saving cost from the period of use compared to investment by the thickness of insulating materials based on building envelope pattern for energy saving, it was found that the thicker the insulating materials are, the more energy saving amount is. While the current bead-type insulating materials have short payback period due to low initial investment, extruded insulating materials show the difference of five years compared to bead-type insulation because of its high initial investment.

• 한국실내디자인학회논문집
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• 제22권1호
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• pp.28-37
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• 2013

Architecture of the present time has a general tendency that focuses only in its permanence between the structure and the ground. Architecture has the temporariness. In other words, it is a losing creation. Structure of natural building materials starts its life on the ground and also ends its life on there. Natural building materials leave no building wastes on their ground. Concerns about how to let materials contain not only its physical property but also their regional relation and timely temporariness can let us express materiality of natural building materials in modern construction spaces. And also, it will be the way of recovering the value of architecture and the healing human's sensibility. Kuma Kengo made an attempt that makes the best use of materiality in his work by using them in balance and draw new materiality by a fusion of them. In here, suggestion about the ways of using weak natural materials in modern construction spaces is the main object of this paper. And we can make a progress by analyzing Kuma's expression way of materiality in his work.

• 한국세라믹학회지
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• 제53권6호
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• pp.665-669
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• 2016

$TiO_2/BiVO_4$ layered films were prepared by sol-gel and spin coating methods. X-ray diffraction (XRD), scanning electron microscopy (SEM) and Uv-vis spectroscopy were used to investigate the crystal structure, morphology and ultraviolet-visible absorption of the $TiO_2/BiVO_4$ films. The photocatalytic activity of the prepared films was inspected according to the degradation of methylene blue. The results show that the prepared films present a net chain structure; the absorption band edge had obvious red shift. The degradation of the methylene blue solution was about 80% after 300 mins using $TiO_2/BiVO_4$ layered films under visible light, which was stronger than when using only pure $TiO_2$ film and $BiVO_4$ film.

• 한국건축시공학회지
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• 제8권5호
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• pp.93-99
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• 2008

The environment draws attention in the global community and a growing number of Koreans have interest in improving the quality of life, the importance of house environment has attracted the attention of the public. Against this backdrop, constructors have unveiled environmentally -friendly projects. However, they failed to establish people-oriented environment by being occupied with maximizing profitability through the improvement of brand image and caused sick house syndrome that has recently made controversy. In this regard, the study analyzed the mechanism of discharge of TVOC, one of the sick house syndrome-causing materials, that affects IAQ and its characteristics and examined the effect that granodiorite has on reduction of the discharge of TVOC in order to minimize damage. Experimental sample consisted of interior finishing materials frequently used in ceiling, wall and floor and adhesives used at a time of construction, and the TVOC of building materials was measured through the use of septum bottle unlike In the existing chamber method. Measures to counter the sick house syndrome were suggested by reducing the possible damage from the stage of selection of building material and by figuring out the effect that the granodiorite has on reduction of the discharge of TVOC.

• Journal of the Korean Wood Science and Technology
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• 제41권6호
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• pp.515-527
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• 2013

국내에서 주로 사용되고 있는 건물에너지 성능평가 시뮬레이션 마다 상이한 재료의 열전도율로 평가 되고 있음이 파악되었다. 시뮬레이션을 통한 정확한 건물에너지부하를 평가하기 위하여, 각 시뮬레이션에서 목조건축물의 스터드로 사용되고 있는 목재의 열전도율을 확인하고, 이에 따른 벽체의 열관류율과 부재 접합부위에서의 선형열교 차이를 연구하였다. 각 시뮬레이션은 동일 수종에 대해 상이한 열전도율을 채택 후, 각 시뮬레이션에서 추출한 열전도율 간의 차이가 가장 상이한 소나무의 열전도율을 스터드에 적용하였다. 시뮬레이션 간 지붕, 벽체, 지면 슬래브의 열관류율 중 최대오차는 $0.023W/m^2{\cdot}K$이었으며, 지붕의 서까래 접합부, 지붕-벽체 접합부, 지면슬래브-벽체 접합부 중 최대 선형열교 오차는 $0.025W/m{\cdot}K$이었다. 또한, HEAT2 정상상태전열해석 프로그램을 활용하여 선형열교 및 벽체의 온도변화에 대한 전열해석 이미지를 분석하였다. 구조체에 온도 분포를 선으로 표시하여 단열이 부족한 곳에서는 온도선이 급격하게 변하는 것이 확인되었고, 온도선이 급격하게 변하는 부위에서는 다른 곳보다 온도가 낮으며, 다른 구조체 부분보다 더 많은 열류가 손실됨이 확인되었다.

• 조명전기설비학회논문지
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• 제19권1호
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• pp.1-8
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• 2005

건축물은 건축자재의 선택과 사용에 따라서 전혀 다른 이미지로 보여 질 수 있다. 건축물을 설계하는 과정에서 건축물을 검증하거나 가시화된 이미지를 얻어내기 위해서 여러 가지 시뮬레이션 프로그램들을 사용하고 있다. 하지만 대부분의 시뮬레이션 프로그램은 국외에서 생산되는 건축자재정보에 대한 데이터들로 이루어져 있기 때문에 국내의 환경에 맞게 적용하는데는 많은 어려움이 따른다. 본 논문에서는 국내에서 생산되고 사용되어지는 많은 건축자재를 바탕으로 데이터를 수집하고, 건축자재가 가진 광학적 특성을 측정하여 데이터베이스 구축을 위한 방안을 제시하였다. 최종적으로 RADIANCE 엔진을 이용하여 개발된 인터넷 웹기반 가시화 시스템에 구축된 국내 건축자재의 데이터베이스를 적용하였다.

• 한국가구학회지
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• 제27권2호
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• pp.122-127
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• 2016

The increasing interest in the environment and climate change around the globe, while the importance of building energy saving is increasing. The building energy simulation program is used for evaluating of energy performance of buildings. However, an input value of wood thermal conductivity in the programs is different from each other. Therefore, in this study, wood thermal conductivity was measured according to species. Through construction database by species of wood, the error of simulation program are able be decreased. In addition, if used as a structural and interior of buildings, the thermal conductivity and moisture of the wood is difficult to apply to the program because they were changed according to the occupant's lifestyle. In this paper, thermal conductivity and moisture content.of wood confirmed changes in the constant temperature and relative humidity ($25^{\circ}C$, 50% R.H.) condition.