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HFM, LFA와 TCi를 이용한 건축 재료의 열전도율 측정과 상관관계 분석
차정훈(Cha Junghoon),서정기(Seo Jungki),김수민(Kim Sumin) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.4
Nowdays the most critical problem is global warming and the most important reason is the high emition of carbondioxide. 23% of the use of carbondioxide is used in building and decreasing the use of it is very important. One of the biggest factor that can decrease the use of energy is developing the heat conducting ratio of the materials we use in building. Heat conducting ratio is the important factor in the use of reducing energy comsumation. In this research, there are methods about how to measure the heat conducting ratio, and the existing the representing measuring method which is Heat Flow Meter HFM 436, Laser Flash Analysis and find out about the TCi of the new method C-Therm and compare the results.
차정훈(Cha Junghoon),김수민(Kim Sumin) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Silica aerogels are intensively investigated since the past decade for a diverse range of application due to their high surface area, low density, open pore structure and excellent insulation properties. Silica aerogels with high thermal insulation performance mixed with acrylic pressure sensitive adhesives(PSA) applied between the window layers can reduce the coefficient of overall heat transmission of the window. A mixture of the adhesives and silica aerogels attached film can reduce thermal conductivity. Thermal conductivity was measured by a TCi thermal conductivity analyzer.
아파트 외장색채 평가를 위한 감성어휘 추출에 관한 연구
김한나(Hanna Kim),차정훈(Junghoon Cha),전보혁(Bohyeok Jeon),이진숙(Jinsook Lee) 한국색채학회 2012 한국색채학회 학술대회 Vol.2012 No.11
아파트 외장색채 평가를 위한 감성어휘 추출을 목적으로 브랜드별 매뉴얼 컬러를 활용하여 자유배색을 통해 연상되는 어휘 148개를 수집하고, 전문가의 검증을 거쳐 총 73개의 색채 평가 어휘를 선정하였다. 이를 토대로 최근 5년 이내에 완공된 27개의 아파트 외장 색채를 평가하였고, 평가 어휘의 구조를 분석하고자 다차원척도법을 활용하여 평가어휘 간 유클리디안 거리 모형을 제시하였으며, 선정된 73개의 평가어휘를 ‘화려한’, ‘전원적인’, ‘고급스러운’, ‘도회적인’, ‘산뜻한’의 그룹으로 분류하였다.
도서관의 공간사용 특성에 따른 냉난방설비 리모델링의 경제성 평가
박강현(Kang-Hyun Park),차정훈(Junghoon Cha),김수민(Sumin Kim),박경원(Kyung-Won Park) 대한설비공학회 2012 설비공학 논문집 Vol.24 No.3
Unlike the previous approaches, we analyzed for economic efficiency of renewed heating and cooling systems as the characteristics of space. The purpose of this study is to analysis the energy consumption and economical efficiency of absorption chillers and EHP systems in renovated library. It is important that equipment selection should be considering energy cost as well as space program. In recently, many EHP systems were installed in the building for reducing the energy cost and for seeking the convenience of individual control. In contrast, though absorption chillers have the disadvantage of a central control, absorption chillers are appropriate for the conditions of the library that needs simultaneous operation. The results by payback period method, show that selection of heating and cooling systems should be consider for space program and the characteristics of space.
권중호 ( Joongho Kwon ),차정훈 ( Junghoon Cha ) 한국체육대학교 체육과학연구소 2019 스포츠사이언스 Vol.36 No.2
The purpose of this study is to examine the current status, analyze the environment of handicapped tennis in Korea, and propose a plan to promote the revitalization of handicapped tennis. To do so, this study analyzed the environment related to handicapped tennis as well as conducted a literature review on research trends and the current conditions in Korea. After, it performed a SWOT analysis through an expert meeting consisting of 7 specialists in the handicapped tennis, regular tennis, physical education, and disability sports, and explored ways to revitalize the handicapped tennis. The result of SWOT analysis through this research showed that the strengths of the Korean handicapped tennis were: high usability as integrated sports, having international competitions by disability types, ability to participate by various disability types, organizations of integrated international sports, and having megaevents by disability type. In contrast, the weaknesses of Korean handicapped tennis were: lack of training places and programs; lack of participants in each event; lack of handicapped tennis professionals; and the lack of sports-for-all competitions by disability types and regions. Also, opportunity factors included: increased social attention by excellent players in regular tennis; international competitions continuously held in Korea; excellent regular tennis infrastructure, and increased interest of the government towards revitalizing handicapped people’s sports-for-all. The risk factors proved to be: difficulties in finding new tennis players; aging elite players; decline in athletic performance; as well as low social awareness and attention. The plans to revitalize the handicapped tennis in Korea were follows based on the above analysis: First, revitalizing tennis clubs for the handicapped using facility infrastructure and regular tennis professionals; Second, expanding Eowuollim tennis contests by connecting with regular tennis competitions in Korea; Third, developing training programs by disability types and nurturing players; and Fourth, strengthening promotional activities of handicapped tennis using star players of regular tennis.