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실별 환기시스템 적용에 따른 공동주택 에너지 소비량 및 환기성능 예측
조현(Hyun Cho),최인창(In-Chang Choi),방승기(Seung-Ki Pang) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.4
In this study, Individual room control ventilation system be applied to plate type and tower type apartment housing in accordance with the ventilation system operating conditions were studied in energy consumption and indoor ventilation performance. Master ventilation system is composed of unit that has airflow of 250CMH and diffuser with electrical control damper in order to control indoor air for each room. Moreover, electricity consumption and sound-level of ventilation unit in each room are measured with hourly base, and indoor airflow pattern and energy consumption are analyzed by simulation program based on applying same condition to the building that is currently under construction. Consequently, the result of this research shows that room control ventilation system is desirable method in terms of energy saving because it control and operates ventilation system as much as each room needs, and profound research need to be proceeded on it.
엔탈피를 이용한 신축공동추택 폼알데히드 농도 예측 방안
조현(Hyun Cho),최인창(In-Chang Choi),방승기(Seung-Ki Pang),손장열(Jang-Yeul Sohn) 한국생활환경학회 2010 한국생활환경학회지 Vol.17 No.5
Some studies have shown that air temperature and humidity have a strong impact on the perception of air quality or VOC emissions from building materials. The objective of this study is to analysis of the impact on the formaldehyde concentration in apartment housing relation with air dry-bulb temperature, relative humidity and enthalpy. This study evaluated the indoor air quality in 567 new apartment houses in Korea from February 2006 to November 2009. Formaldehyde were sampled and analyzed by GC/MS and HPLC. Environmentally sound finishing materials were used in every households. The results of experiments, formaldehyde concentration showed the average value of 114.5 ㎍/㎥, and maximum value of 799.3 ㎍/㎥ in total experiments period. As a results, It was found that extremely exponential increased formaldehyde concentration, above air temperature 20℃, relative humidity 40%, enthalpy 40 kJ/㎏. And it was observed that the most strong impact of enthalpy on the emission of formaldehyde from indoor air and building materials.
Atrium Building 의 자연채광특성에 관한 기초적연구
김회서(Kim Hwy Sub),최인창(Choi In Chang),서정호(Seo Juong Ho) 한국태양에너지학회 1992 한국태양에너지학회 논문집 Vol.12 No.3
본 연구는 아트리움 빌딩에 대한 자연채광의 영향을 모델에 의해서 실험하였다. 이러한 방법에 의하여 아트리움 빌딩에서의 자연채광의 단계를 예측하는 방법은 여러가지가 있으나, 그러나 지금까지는 선형아트리움 건물에서 실내자연채광의 다양한 영향을 예측하기에는 충분치 못하였다. 분 연구에서는 효율적인 방법의 제시를 위하여 선형아트리움의 자연채광에 대한 환경평가를 위해 모형을 제작하고, 평가모델에서의 천공상태, 방위, 종횡비, 층의 변화를 주어 전부 80가지의 변화에 대한 모형측정을 하여, 층높이의 변화와 공간비를 사용하여 분석하였다. This study is presents model testing to evalute daylighting performance in Atrium Building. There are several methods of the prediction of Daylighting level in a Atrium Building, But they are not sufficient to estimate interior daylight level of each different hights onleaner Atrium Building.<br/> In this study provide with making the model to estimate the environmental effect for the daylight on leaner Atrium, measuring the model in 80 variable sky condition, building direction, interior length - width ratio throrgh the variation of floor- hight and space ratio.<br/>
최인창,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.2
This study is compared and analyzed to vertical diffusion appearance of an externally venting flame. An installed balcony of one meter length is also applied to fire test 4.0MW class to analyze about effect of an awning or a balcony. The test is progressed to four case of 1.0MW, 2.0MW, 3.0MW, and 4.0MW class by heat release rate. The result of test is as following. -A neutral zone position of window where is emitted gas and flame is originated under one of three point of window height. -The venting flames from opening was seen a sticking phenomenon from an upper story to wall, and appeared to rising temperature of an upper spandrel and window. -In the case of establishment balcony, the exterior wall's surface temperature of upper story is seized rising phenomenon. The experimental data will be compared with simulation result later on, and appropriate counterproposal will be presented when the opening of building's exterior wall is designed.
벽면부착방식 PV시스템의 建築物 適用可能性에 關한 硏究
김재원,오민석,이성주,최인창,이응직,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.6
Building integrated photovoltaic(BiPV)systems can from a cohesive design, construction, and energy solution for the built environment. The benefits of building integration are well documented and are gaining significant public recognition and government support. PV cells, however, convert only a small portion of the incoming isolation in to electricity. The rest is either reflected or lost in the form of sensible heat and light. In order to judge of the Integration capability to the BIPV system, energy efficiency, capacity and integration capability is studied by considering the production quantity of electric power and U-value of PV system.
이평강,최인창,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.1
The purpose of this study is to survey the Fire Load Energy Density depending on occupancy. The paper outlines the work carried out in surveying the fire load for different types of building occupancies such as dwellings, hospitals, hotels, library, offices, classroom of school, restaurants, shopping shops, and theatre. Twenty-nine different types of buildings with a total floor area of about 4.578㎥ were surveyed. Details of the inventory method which was used in the present survey are given. It is found that room use are major parameters affecting the fire loads in a room. An attempt is made to calculate the composition of fire loads in the building surveyed, wood and plastic materials contribute to a substantial portion of the total fire load in all building. The movable contents contribute to about 81% of the total fire load. The fire load obtained from the survey have been compared with those of Performance-Based Building Codes of Eurocode1 and the Building Standard Law in Japan. An accurate prediction of the possible fire load in a certain building occupancy will assist the engineer to better estimate the likely fire severity, and thus help to provide adequate and cost-effective fire protection.
이평강,최인창,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.9
The main purpose of this study is to investigate the required fire resistance time by using performance-based fire safety design method and to predict the temperatures in post-flashover compartment fires. To examine the performance criteria of fire resistance, this study compared the equivalent time of fire exposure which was calculated by using time-equivalent formulae with the required fire resistance time determined by existing prescriptive code. Twenty-nine different type of building with a total floor area of about 4,576㎡ were surveyed in order to calculate the equivalent time of fire exposure which needs data such as the fire load energy density, ventilation factor, fire compartment materials and fire compartment geometry. A CFD was used in order to predict the temperatures in post-flashover compartment fires. All calculations were performed with STAR-CD v3.10, a commercial finite volume based CFD code. The result of numerical model using CFD has been validated using the data from full-scale experiment.