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재활용 폐지를 이용한 친환경 발포 단열재의 열물성 특성
강재식(Kang Jae-Sik),최경석(Choi Gyeong-Seok),정영선(Jeong Yeong-Seon),이승언(Lee Seung-Eon) 한국건축친환경설비학회 2007 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
The main ingredients of the foam insulator, suggested in this study, are cellulose and starch. Cellulose comes from recycled paper, and starch is natural. Unlike other insulators, the foam is made according to the steam foaming technique which does not use foam gas. Accordingly, this foam insulator has little environmental load occurring in the production process, and is environmentally friendly from product distribution to scrapping. Foamed products show a vertical texture, but most cells are close types. It is low in absorptiveness, and high in moisture permeation resistance, i.e. 0.07 g/m3 hr ㎜Hg. This foam insulator can be easily processed at a density of 20 ㎏/m3~ 30 ㎏/m3, and the thermal conductivity at this time was 0.034 W/mK ~ 0.037 W/mK. Its tensile strength, compressive strength and absorptiveness are the same as those of existing plastic foam insulators. The greatest feature of this foam insulator is that it uses recycled paper as one of its main ingredients, and the excellent economy of recycling is its advantage.
강재식(Jae-Sik Kang),최경석(Gyoung-Seok Choi),김경우(Kyoung-Woo Kim),이승언(Seung-Eon Lee) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
About a Structure is performance insulation include air-tight is fundamental performance for energy-saving. The Apartment house of permission balcony enlarged to increase the requirement of market of high-effective door. Since 2001 years the window and wall of insulation performance stronger frailty than keep up performance insulation that increase influence building energy generated heat loss at door. In study on presentation that high-insulation, air-tight door about experimental method and performance standard.
로이유리 창호의 정량적 단열성능 및 현장 냉난방에너지소비특성 평가
강재식(Kang Jae-Sik),이승언(Lee Seung-Eon),최경석(Choi Gyeong-Seok) 한국건축친환경설비학회 2007 한국건축친환경설비학회 논문집 Vol.1 No.2
In the high oil prices age. intensification of energy efficiency promotion in the building sector is required. Windows are dominating large percentage whole building loads. and are regarding as the primary target of energy efficiency. The purpose of this study is to draw up a technical counterplan for the intensification of windows energy efficiency and spread promotion by 1) quantitative thermal performance with KS test method and 2) an on-site evaluation for the cooling and heating energy consumption characteristic for a comparison between the general pair glass windows and the Low-e pair glass windows.
제로에너지건물 구현을 위한 단열 파스너의 열 특성 및 실증에 관한 연구
강재식(Jae-Sik Kang),이호열(Ho-yeol Lee),최경석(Gyeong-Seok Choi),최현중(Hyun-Jung Choi) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
Internal insulation systems are applied to the most buildings in Korea. However, due to the importance of building energy enhanced the interest of the external insulation systems. The external insulation systems have better thermal performance because the heat bridges through the structure are rarely formed. But heat bridges through the connectors and anchors between structure and external insulation decrease heat performance of the envelope system. In this paper, mock-up test and simulation was conducted. Heat Bridge-free Fastener was installed between two chambers of which indoor temperature was controlled. Heat Bridge-free Fastener reduced heat flow through the fastener.
PCM 상변화 물질을 이용한 스마트 건축자재 기술 - 결로발생 확률 저감 및 조명부하 저감 기술 -
강재식(Jae Sik Kang),배민정(Min Jung Bae),최경석(Gyeong Seok Choi) 대한설비공학회 2020 대한설비공학회 학술발표대회논문집 Vol.2020 No.6
This study relates to a smart building material technology using latent heat generated from phase change materials. The phase change material undergoes a phase change between a solid and a liquid at an arbitrarily set temperature. The latent heat generated at this time can be used for various smart building materials. This study examines the feasibility and effectiveness through simulation from the viewpoints of reducing the probability of occurrence of dew condensation and reducing the light load. The window condensation reduction technology constitutes a phase change material between the glass and the frame, the most condensation-producing area in the window. In this case, the phase change material is maintained in a liquid state by solar energy during the daytime. It is a principle to lower the probability of condensation by increasing the surface temperature of the window by 1 ℃ or higher by the phase change at the time of dew condensation, i.e., the outdoor temperature is rapidly lowered and condensation occurs in the window. Reduction of the lighting load is achieved by accumulating heat generated by lighting fixtures and ballasts, etc. in a phase change material on the upper part during the daytime, and arranging the outside by cooling the outside air at night, thereby reducing the lighting load. The result of this study is the result of the 3D abnormal simulation, and the actual phenomena and effects in real buildings are currently under study.
제로에너지빌딩 구현을 위한 발포 플라스틱 폼 단열재의 난연성에 관한 실험 연구
강재식(Kang Jae Sik),최경석(Choi Kyung Suk),최현중(Choi Hyun Jung),배민정(Bae Min Jung) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
This study was carried out to investigate flammability by self - extinguishing ability and flame retardancy by cone calorimeter test on foam plastic foam insulation (EPS, XPS, PUR, PF). The purpose of this study is to investigate insulation materials suitable for zero energy buildings. 1) As a result of horizontal and vertical combustion test by KS M ISO 9772 and UL 94 test method, horizontal burn ability showed low discriminative power and vertical burnability was found to be different according to the self - extinguishing and flammability characteristics of insulation. Therefore, it is considered that the test standard for the current horizontal flammability needs to be improved and improved. 2) Cone calorimeter test for EPS, XPS, PUR, PF insulation shows that the current self-extinguishing organic insulation is less than the performance of all samples tested. Even in the case of EPS core sandwich panels, the flame retardancy of the core EPS was inadequate in the entire sample. Therefore, it is very inadequate to evaluate the flame retardancy of the composite system with the total calorific value of the composite system without evaluating the flame retardancy of the core material in a large number of various composite materials and composite insulation systems, which are recently known to satisfy the semi-fire. It is very urgent to improve the systematic supplementation and management of the test report. 3) In the case of recently developed flame retardant EPS, the heat insulation performance was confirmed to be the flame retardant material or semi-fireproof material performance at the level satisfying the thermal conductivity performance of the foamed polystyrene insulation material of KS M 3808 bead method. Therefore, it can be used as an alternative technology to meet both energy performance and fire safety performance in the future zero energy architecture implementation.
강재식(Kang, Jae-Sik),배민정(Bae, Min-Jung),안호상(Ahn, Ho-Sang) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.2
This study conducted field-centered empirical tests on new technologies for fire/disaster evacuation facilities that use balcony railings, evaluated structural safety and weather resistance, and conducted simulations to predict evacuation safety when applied to various buildings. As a result of field experiments and simulations, it was found that in the case of an apartment complex, one person could be evacuated in about 20 seconds, a family of 4 could be evacuated in about 45 seconds, and in the case of an office, it was possible to evacuate 26 people in 35 seconds.