• Title/Summary/Keyword: Indoor Environmental Items

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A Study on Developing the Evaluation Items for the Green Libraries Certification (녹색도서관 인증을 위한 평가항목 개발에 관한 연구)

  • Noh, Younghee
    • Journal of the Korean Society for information Management
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    • v.32 no.3
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    • pp.99-130
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    • 2015
  • This study was conducted to develop and propose the evaluation indicators to evaluate the eco-friendliness of the library, when certified as the eco-friendly Green Libraries. To do this, we extracted the green library components through an analysis of the green library literatures and case studies, and surveyed the perceptions of the library staffs about the assessment factors. Finally, we developed the green library evaluation index with 11 evaluation areas, 31 evaluation items, and 135 evaluation indicators. The 11 evaluation areas are as follows; Land use and transportation, energy and environmental protection, materials and resources, water cycle management, maintenance management, ecological environment, the indoor environment, the library resources, the eco-education programs and campaigns, the staff and operations, and the computerization.

Measurement and Analysis of Indoor Thermal Environment in Passenger Car (철도차량 객차내 온열환경 측정 분석)

  • So, Jin-Sub;Yoo, Seong-Yeon
    • Journal of the Korean Society for Railway
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    • v.11 no.2
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    • pp.120-125
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    • 2008
  • The Ministry of Environment established a guide line Indoor Air Quality Management guidelines in Public Facilities in December 2006. As the items of the guideline, $CO_2$ (Carbon dioxide) and PM10 (Particulate matter). Therefore trains and subway need to control air quality. The indoor thermal environment in passenger car is very important for the enhancement of the amenity and health of passengers. Many researchers have studied it not for train but for building. So, in this study, we have performed thermal environment in passenger car (KTX, Mugunghwa, Saemaeul), and verified the relation between the PMV (Predicted Mean Vote) and PPD (Predicted Percent Dissatisfied) from September to October 2007. As a result, the average PMV value for each trains are 0.1, 0.22 for KTX, 0 for Mugunghwa, 0.1 for Saemaeul. So it satisfies the ASHRAE Handbook thermal environmental limit (-0.5 < PMV < +0.5).

Experimental Study on Indoor Thermal Environment of an Office Building During Cool ing Season (실내 열환경에 관한 실측조사 연구 -냉방기 사무소건물을 중심으로-)

  • Kim, Sung-Wan;Jang, Hai-Jin;Park, Sang-Dong
    • The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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    • v.12 no.3
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    • pp.189-197
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    • 1983
  • In this study, the thermal environment of a certain building was investigated by using of concerned equipments and enquete sheets. The measured items were temperature, humidity, air flow and radiant heat, and thermal responses for the occupants were checked also, which are oriented to be used as basic data for environmental design. The results of this study are as followed. 1. The optimal room temperature was $24\~26.5^{\circ}C$ DBT in cooling season. 2. Under the condition from $50\%\;to\;70\%$ of relative humidity, the difference of relative humidity did not impact upon the feeling temperature. 3. In cooling season, the average clothing factor of occupants was 0.34 clo ; 0.49 clo for men and 0.25 clo for women. 4. The average working factor of occupants was $1.1\~1.3\;Met$ in that cooling season.

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Characterization of Secondary Exposure to Chemicals and Indoor Air Quality in Fire Station (소방서 실내공간의 화학적 유해인자 2차노출과 실내공기질 특성)

  • Kim, Soo Jin;Ham, Seunghon;Jeon, Jeong Seok;Kim, Won
    • Fire Science and Engineering
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    • v.33 no.4
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    • pp.140-151
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    • 2019
  • It is to assess the indoor air quality of the chemical hazardous materials exposed to the fire after firefighters returned to the fire scene. The research subject randomly selected four fire stations located in Seoul, Korea. Two fire stations were set up as control groups after the return of the firefighting activities at the actual fire scene, and two other fire stations were set up as control groups to measure the air quality of the room at normal levels regardless of the action. We conducted 24-hour monitoring for all fire accidents that occurred in Seoul Metropolitan using fire safety map computer system. Also, indoor air quality was measured immediately after homecoming if the experiment group was to be dispatched due to an accident of intermediate or larger scale. 11 hazardous substance items such as fine dust, formaldehyde, volatile organic compounds, PAH, VCM, acidity, asbestos, CO2, NO2, O3 were measured according to the process test method. Three of 11 types of harmful substances exceeded domestic and foreign standards, and one of them was found to be close to foreign standards. In particular, total volatile organic compounds, carbon dioxide and sulfuric acids were 2.5 times, 2.2 times and 1.1 times higher than the standard. Also, for formaldehyde and sulfuric acid, it was measured higher in the control group than in the case group. This findings could be used in policies to improve indoor air quality in the fire station of the Seoul Metropolitan Government.

Study on Environmental Factors for Movable Cultural Properties in Museum (박물관 환경 분석을 통한 동산문화재 영향인자에 대한 연구)

  • Kim, Il-Kyu;Seo, Yong-Soo;Lee, Ju-Hyun
    • Journal of Korean Society of Environmental Engineers
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    • v.31 no.9
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    • pp.811-816
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    • 2009
  • Along with research into the latest preservation treatments for items of cultural heritage, studies of the preservation environment and the effect of damage are also increasing. This study conducted comprehensive research into the temperature, humidity, acids, ammonia, reduced sulfur compounds, aldehydes with various ingredients in the exhibition hall, show case, and storage of three type museum. As a result, temperature, humidity, TVOCs, acetaldehyde frequently exceeded the domestic and international standards for a museum preservation environment and indoor air quality. Also, formaldehyde, chloride, and ammonia exceeded the standards intermittently. Temperature, humidity, TVOCs, acetaldehyde were evaluated to be the major influential factors. In order to control the major factors, apart from temperature and humidity, that cause damage in the museum environment, it is deemed necessary to complement this system with an effective air filter or remover.

The Study on the Derivation of Performance Guidelines for Indoor·Outdoor Temporary Housing Facility (실내·외 임시주거시설의 성능 가이드라인 도출에 관한 연구)

  • Ju, Jaeseong;Park, Jiyong;Gwak, Donghwa;Park, Mijin
    • Journal of the Society of Disaster Information
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    • v.14 no.3
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    • pp.271-279
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    • 2018
  • Purpose: This study is designed to develop performance guidelines for temporary residential facilities inside and outside the building to improve the residential habit of the victims caused by a disaster. Method: Performance items were set up by analyzing the disaster response system and prior study for eliciting performance guidelines and conducting field surveys of temporary housing facilities and interviews of temporary residential facilities for eliciting relevant performance guidelines. Results: The performance of temporary housing facilities in and out of the country was largely classified as technical, environmental and social, and each presented performance guidelines. The derived performance guidelines were generally similar, although some were similar due to indoor/outdoor characteristics. Conclusion: The performance guidelines presented in this study to improve the residential habit of the victims are applied in practice, and continuous improvement through feedback of results is required.

A Delphi Study on Competencies of Future Green Architectural Engineer (근미래 친환경 건축분야 엔지니어에게 필요한 역량에 대한 델파이 연구)

  • Kang, So Yeon;Kim, Taeyeon;Lee, Jungwoo
    • Journal of Engineering Education Research
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    • v.21 no.3
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    • pp.56-65
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    • 2018
  • With rapid advance of technologies including information and communication technologies, jobs are evolving faster than ever. Architectural engineering is no exception in this regard, and the green architectural engineering is emerging fast as a promising new field. In this study, a Delphi study of expert architectural engineers are conducted to find out (1) near future prospects of the field, (2) near future emerging jobs, (3) competencies needed for these jobs, and (4) educational content necessary to build these competencies with regards to the green architectural engineering. Initial Delphi survey consisting of open-ended questions in the above four areas were conducted and came out with 65 items after duplicate removal and semantic refinements. Further refinements via second and third wave of Delphi results into 40 items that the 13 architectural engineering experts may largely agree upon as future prospects with regards to the green architectural engineering. Findings indicate that it is expected that the demand for green architectural engineering and needs for automatic energy control system increase. Also, collaborations with other fields is becoming more and more important in green architectural engineering. The professional work management skills such as knowledge convergence, problem solving, collaboration skills, and creativity linking components from various related areas seem to also be on the increasing need. Near future ready critical skills are found to be the building environment control techniques (thermal, light, sound, and air), the data processing techniques like data mining, energy monitoring, and the control and utilization of environmental analysis software. Experts also agree on new curriculum for green building architecture to be developed with more of converging subjects across disciplines for future ready professional skills and experiences. Major topics to be covered in the near future includes building environment studies, building energy management, energy reduction systems, indoor air quality, global environment and natural phenomena, and machinery and electrical facility. Architectural engineering community should be concerned with building up the competencies identified in this Delphi preparing for fast advancing future.

Comparison of Survey Methods and Results for Natural Environment in Baekdudaegan Mountain System (백두대간 자연 환경 조사 비교 및 개선 방안 고찰)

  • Shin, Moon-hyun;Kim, Jung-hwan;Kwon, Jino;Lim, Joo-hoon;Choi, Hyung Tae;Park, Chanwoo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.2
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    • pp.1-18
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    • 2016
  • Baekdudaegan Mountain System (BDMS) is a unique and traditional concept in Korea that puts importance on the connectivity of energy when Korean people recognize their mountain system. Two main national organizations that are in charge of managing natural environment in Korea, Korea Forest Service (KFS) and Ministry of Environment (MoE), have been independently investigating the natural resources in protected areas of BDMS. Each organization released its first survey report for the whole protected areas in 2011. In order to provide better understanding of BDMS's natural environment, the results contained in the first reports of KFS and MoE were compared. It was found that KFS contains a wider variety of survey items, though many of the items are overlapped between the reports of KFS and MoE. It was noticeable that the survey results of KFS and MoE were not always matched even for the same or similar items in the identical target areas. The main causes of the different survey results are suggested to be the differences of the details of the survey conditions between KFS and MoE, such as the season of the surveys and the subjectivity of surveyors, and the type of literatures included in the indoor survey. As a result, it is difficult to directly compare the survey results of KFS and MoE, which leads to low usability of the data and low efficiency of the survey processes. Therefore, it is strongly recommended that the sections and methodologies of survey should be clearly set with consideration for the research purposes. The survey data and geographical information should be digitalized and opened to the public for better accessibility to BDMS information. Also, the survey reports should include English summary, thereby the results can be utilized globally for scientific, cultural and political purposes, such as designation of a heritage site.

Generating Characteristics of VOCs in a Commercial Laundry Shop and the Effects on the Health of Workers (소규모 세탁소의 휘발성유기화합물 발생 특성과 종사자의 건강에 미치는 영향)

  • Park, Ok-Hyun;Lee, Kyoung-Seok;Min, Kyoung-Woo;Cho, Gwang-woon;Yoon, Kwan-Ju;Jeong, Won-Sam;Cho, Young-Gwan;Kim, Eun-Sun;Yang, Jin-Seok
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.26 no.2
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    • pp.159-169
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    • 2016
  • Objectives: The objective of this study was to evaluate the generating characteristics of VOCs and the exposure effect to chemicals among laundry workers and to identify the current status of occupational safety and health through health check-ups. Methods: During the six-month period from April to September 2015, this study quantitatively measured seven VOCs in ten laundries and carried out health examinations on 35 workers. Results: Comparing the monitoring results for the ten laundries, they were classified into three groups by ventilation system, dry-cleaning and size of shop. The average concentration of toluene, chlorobenzene, xylene, ethylbenzene, benzene, styrene and TCE were 23.9, 15.6, 5.5, 2.8, 0.9, 0.3 and $1.3{\mu}g/m^3$, respectively. During dry-cleaning, VOC concentrations were 1.3-8.9 times higher than usual. On the other hand, at night the concentrations of toluene, chlorobenzene, xylene, ethylbenzene, benzene, styrene and TCE were 64.3, 41.5, 12.2, 6.3, 1.1, 1.2 and $6.6{\mu}g/m^3$, respectively. The health checkup results for the 35 workers showed that 13 workers were diagnosed as normal, while 22 workers were diagnosed as requiring continuous monitoring or re-checkup of liver and hematogenous functions. Conclusions: Although the results of exposure evaluation to VOCs did not exceed reference value and items had a low correlation with health checkup items, it is necessary to improve indoor air quality due to VOC volatilization from clothes.

A Study on Green Library Construction Status and Awareness (녹색도서관 구축 현황 및 인식조사 연구)

  • Hong, Suji;Noh, Younghee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.25 no.4
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    • pp.79-108
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    • 2014
  • The purpose of this study was to research instances of green library construction and recognition in order to increase awareness of green libraries. To this end, we investigated the green library's outline and green building, evaluated cases of G-SEED certified libraries, and surveyed the employees at the 16 different G-SEED certified libraries. Results showed that the employees' knowledge of green libraries and the green certification system was low, whereas their interest and needs regarding the green library concept were very high. Second, the respondents were able to recognize as a whole the factors of green library construction based on the evaluation items for G-SEED and place particular emphasis on 'recyclable resources & recycling bins.' However, only a few recognized 'water reclamation/reuse system establishment' as a green library factor. Third, the respondents largely agreed upon an evaluation of items on the suitability of G-SEED, and their ranked reasons for build a green library were preventing environmental pollution, energy-saving, environment, ecology, and indoor environmental factors. Fourth, a lack of 'awareness about the concept of the green library' was thought to most affect the awareness of difficulties in green library construction, and the respondents agreed with the need for 'library image enhancement' to better manage expectations of the green library.