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.

건물적용을 위한 에어로겔의 단열 특성에 관한 연구

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.

목질마루바닥재와 벽체용 재료를 이용한 평판열류계법과 MTPS (Modified Transient Plane Source)법의 열전도율 상관관계 분석

차정훈(Junghoon Cha),서정기(Jungki Seo),김수민(Sumin Kim) 한국가구학회 2011 한국가구학회지 Vol.22 No.2

These days global warming is the most important problem and the most important factor is high emission of carbon dioxide. The 23% of carbon dioxide emission for building construction must be reduced. Thermal conductivity is the most basic factor that can decrease the energy consumption especially insulation. Therefore, an accurate and continuous thermal conductivity measurement can be a way to save energy. In this paper, there are methods about how to investigate thermal conductivity measurements and comparing two methods which are the Heat Flow Meter 436 and TCi.

장애인테니스 활성화를 위한 탐색적 연구

권중호 ( Joongho Kwon ),차정훈 ( Junghoon Cha ) 한국체육대학교 체육과학연구소 2019 스포츠사이언스 Vol.36 No.2

본 연구의 목적은 우리나라 장애인테니스의 활성화를 도모하기 위하여 국내 장애인테니스에 대한 현황을 살펴보고 환경을 분석하여 활성화를 위한 방안을 제시하는데 있다. 이러한 연구의 목적을 달성하기 위하여 국내 장애인테니스관련 환경을 분석하고 연구동향 및 현황과 관련된 문헌 분석을 실시하였다. 이후 분석된 자료를 바탕으로 우리나라의 장애인테니스 전문가 1인, 일반테니스 전문가 1인, 체육학 교수 2인, 장애인체육 전문가 3인이 포함되어 총 7인으로 구성된 전문가회의를 통해 SWOT분석을 실시하고 활성화방안을 탐색하였다. 이러한 연구과정을 통해 도출된 SWOT 분석 결과 우리나라 장애인테니스 종목의 강점요인은 통합스포츠로써의 높은 활용도, 장애유형별 국제대회 보유, 다양한 장애유형의 참가가능, 통합 국제스포츠기구, 장애유형별 메가이벤트 보유가 도출되었고, 약점요인으로는 훈련장소 및 훈련프로그램의 부족, 종목 내 참여인구의 부족, 장애인테니스 전문인력의 부족, 장애유형 및 지역별 생활체육 대회 부족이 도출되었다. 또한 기회요인은 일반테니스 종목의 우수선수로 인한 사회적 관심증대, 국제대회의 지속적인 국내개최, 일반테니스의 우수한 인프라, 장애인생활체육 활성화에 대한 정부의 관심증가가 도출되었다. 위협요인으로는 신규선수 발굴의 어려움, 엘리트선수의 고령화, 국제대회에서의 경기력 저하, 낮은 사회적 인식 및 관심이 도출되었다. 이러한 분석을 바탕으로 한 우리나라 장애인테니스 활성화를 위한 방안은 다음과 같이 나타났다. 첫째, 일반테니스의 전문인력과 시설 인프라를 활용한 장애인테니스 클럽의 활성화, 두 번째, 국내 일반테니스대회와의 연계를 통한 어울림테니스대회 확대, 세 번째, 장애유형별 훈련프로그램 개발 및 선수육성, 네 번째, 일반테니스 스타플레이어를 활용한 장애인테니스 홍보활동 강화를 해야 하는 것으로 나타났다. 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.

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.

복합 문화공간 구조에 따른 실내환경이 이용객의 선택에 미치는 영향

강진영(Jinyoung Kang),원영석(Youngsuk Won),차정훈(Junghoon Cha),김수민(Sumin Kim) 한국가구학회 2011 한국가구학회지 Vol.22 No.4

Today, people are becoming more conscious regarding environmental-friendliness, and the society as a whole is becoming more aware of it. With such phenomenon, the purpose of this research is to examine how comfort and pleasantness of indoor environment influences when selecting a place for multi-cultural complex. To demonstrate the stated hypothesis, I have preceded the experiment by selecting the C multi-cultural complex of closed-type structure and T multi-cultural complex of open-type structure. The next step I took, in order to validate the public’s awareness of environmental-friendliness, was conducting a survey. I then deducted a conclusion through comparison and analysis of experiment measures with survey result. As a result of the research, the experiment measures of each air, light, heat condition of the T multi-cultural complex of open-type structure had a higher measurement for the comfort and pleasantness than the C multi-cultural complex of closed-type structure. Moreover, after validating the consciousness of the public through the survey, they had a tendency preferring T multi-cultural complex of open-type structure over C multi-cultural complex of closed-type structure in terms of comfort and pleasantness. To summarize, it is proper to conclude that the criteria ? comfort and pleasantness of indoor environment ? has influenced significantly when it comes to selecting a multi-cultural complex through both the experiment and the survey result.

철도차량 부품관리를 위한 듀얼밴드 RFID 태그 적용에 관한 연구

윤형기(Hyong-Ki Yoon),박찬영(Chan-Young Park),서봉진(Bong-Jin Seo),차정훈(JungHoon Cha),김태도(Tae-Do Kim),김영배(Young-Bae Kim),박세영(Se-Young Park),장정진(Jung-Jin Jang) 한국철도학회 2015 한국철도학회 학술발표대회논문집 Vol.2015 No.5

공공도서관 열람실의 실내환경 쾌적성 평가

이지훈(Jihoon Lee),서민석(Minseok Seo),윤준희(Junhee Yun),차정훈(Junghoon Cha),김수민(Sumin Kim) 한국가구학회 2011 한국가구학회지 Vol.22 No.4

Recently, our society is becoming increasingly enthusiastic to acquire knowledge and quality education. Thus, private houses, schools, public libraries and even subways are becoming places to acquire knowledge. Out of all these places, the library, where people visit most frequently to study, has to be quiet, effective and pleasant in order to provide the most efficient place for maximizing learning performance. Many people use public libraries and the age group of people who visit public libraries are very diverse, which makes it particularly necessary to provide the conditions mentioned above. The purpose of this paper is to measure and analyze the differences of thermal comfort and soundscape of library N, which is located in the quiet woods, and library G, which is located in the city center. The measurement and analysis results will be used to evaluate which library has a more pleasant environment.