• 제목/요약/키워드: Indoor facility

검색결과 227건 처리시간 0.032초

포스트 코로나 시대 신종 감염병 대비를 위한 기존 의료시설의 비상시 운영사례 조사 및 분석 (Investigations on the emergency operation status of existing medical facilities to prepare for emerging infectious diseases in the post-COVID-19 era)

  • 이세진;이원석;김은석;여명석
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제29권1호
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    • pp.43-51
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    • 2023
  • Purpose: To accommodate the increasing number of patients during the COVID-19 pandemic, numerous portable HEPA filter units (PHUs) were installed in the general wards of existing medical facilities(EMFs) to convert them into emergency conversion facilities (ECFs). The purpose of this study was to build a dataset in preparation for emerging infectious diseases in the post-COVID-19 era by analyzing the construction and operation of ECFs. Methods: Field investigations were conducted during ECF operation periods based on the analysis of heating, ventilation, and air conditioning (HAVC) system design documents for six ECFs across Korea. Interviews were conducted with facility managers during the field investigations. Results: When constructing an ECF within an EMF, the installation status and characteristics of the existing system should be considered. Field investigations and verifications of the operation of HAVC systems must be conducted beforehand for smooth ECF operations. If heating and cooling are required with indoor air circulation type equipment in an ECF zone, the implementation of a heating and cooling method that can satisfy the comfort requirements of the occupants while minimizing cross-contamination is essential. When using PHUs that do not meet the performance standards required by medical equipment, the noise level resulting from such equipment operation must be evaluated and improved. Implications: For EMFs, various guidelines that can be referred to for the construction and operation of ECFs must be developed to prepare for emerging infectious diseases in the future.

설비공학 분야의 최근 연구 동향 : 2010년 학회지 논문에 대한 종합적 고찰 (Recent Progress in Air-Conditioning and Refrigeration Research : A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2010)

  • 한화택;이대영;김서영;최종민;김수민;권영철;백용규
    • 설비공학논문집
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    • 제23권6호
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    • pp.449-469
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    • 2011
  • This article reviews the papers published in the Korean Journal of Air-Conditioning and Refrigerating Engineering during 2010. It is intended to understand the status of current research in the areas of heating, cooling, ventilation, sanitation, and indoor environments of buildings and plant facilities. Conclusions are as follows. (1) Research trends of thermal and fluid engineering have been surveyed as groups of general thermal and fluid flow, fluid machinery, and new and renewable energy. Various topics were presented in the field of general thermal and fluid flow. Research issues mainly focused on the thermal reliability of axial fan and compressor in the field of fluid machinery. Studies on the design of ground source heat pump systems and solar chemical reactors were executed in the field of new and renewable energy. (2) Research works on heat transfer area have been reviewed in the categories of heat transfer characteristics and industrial heat exchangers. Researches on heat transfer characteristics included heat transfer in thermoelectric cooling/power generation systems, combined heat and power systems, carbon nano fluid with PVP, channel filled with metal foam and smoke ventilation in a rescue station of a railroad tunnel. Also the studies on flow boiling of R123/oil mixture in a plain tube bundle and R410A charge amount in an air cooled mini-channel condenser were reported. In the area of industrial heat exchangers, researches on plate heat exchanger, shell and tube heat exchanger, enthalpy exchanger, micro channel PCHE were performed. (2) Research works on heat transfer area have been reviewed in the categories of heat transfer characteristics and industrial heat exchangers. Researches on heat transfer characteristics included heat transfer in thermoelectric cooling/power generation systems, combined heat and power systems, carbon nano fluid with PVP, channel filled with metal foam and smoke ventilation in a rescue station of a railroad tunnel. Also the studies on flow boiling of R123/oil mixture in a plain tube bundle and R410A charge amount in an air cooled mini-channel condenser were reported. In the area of industrial heat exchangers, researches on plate heat exchanger, shell and tube heat exchanger, enthalpy exchanger, micro channel PCHE were performed. (3) Refrigeration systems with alternative refrigerants such as hydrocarbons, mixed refrigerants, and CO2 were studied. Performance improvement of refrigeration systems are tried applying various ideas of refrigerant subcooling, dual evaporator with hot gas bypass control and feedforward control. The hybrid solar systems combining the solar collection devices with absorption chillers or compression heat pumps are simulated and studied experimentally as well to improve the understanding and the feasibility for actual applications. (4) Research trend in the field of mechanical building facilities has been found to be mainly focused on field applications rather than performance improvements. Various studies on heating and cooling systems, HVAC facilities, indoor air environments and energy resources were carried to improve the maintenance and management of building service equipments. In the field of heating and cooling systems, papers on a transformer cooling system, a combined heat and power, a slab thermal storage and a heat pump were reported. In the field of HVAC facilities, papers on a cooling load, an ondol and a drying were presented. Also, studies on HVAC systems using unutilized indoor air environments and energy resources such as air curtains, bioviolence, cleanrooms, ventilation, district heating, landfill gas were studied. (5) In the field of architectural environment and energy, studies of various purposes were conducted such as indoor environment, building energy, renewable energy and green building. In particular, renewable energy and building energy-related researches have mainly been studied reflecting the global interest. In addition, many researches which related the domestic green building certification of school building were performed to improve the indoor environment of school.

교사환경기준에 관한 연구 (A Study on Environmental Standards of School Building)

  • 홍석표;박영수
    • 한국학교ㆍ지역보건교육학회지
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    • 제1권1호
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    • pp.11-43
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    • 2000
  • The purpose of this study was, through analyzing the previous researches, to grasp the present status of environment of school building(ESB), research the sundry records of each element and, through comparative analysis of the standard of ESB in Korea, the United States, and Japan, select the normative standard of ESB, to clarify the point at issue presented in Regulation of Construction & facility Management for Elementary and and Secondary School in Korea, and to suggest an alternative preliminary standard of ESB. To carry out a research for this purpose, these were required: 1. to investigate the existing present status of ESB, 2. to make a comparative analysis of the standard of ESB in each country, 3. to suggest the normative standard of preliminary standard of ESB, 4. to analyze the controversial points of the standard of ESB in Korea, 5. to suggest an alternative preliminary standard of ESB. The conclusions were as follows: 1. Putting, through analyzing the previous researches, the existing present status of ESB together, it seemed that lighting environment, indoor air environment and noise environment were all in poor conditions. 2. In the result of a comparative analysis of the standard of ESB in Korea, Japan and the United States, in Korea the factors of each lighting and indoor air environment were not presented properly, in Japan, in lighting environment aspect, the standard on natural lighting and the factors on brightness were not presented., and in the USA the essential factors of each environment were throughly presented. In the comparison of the standards on each factor, Korea showed that the standard level presented was less properly prescribed than those of the USA and Japan but it also showed that the standard levels prescribed in the USA and in Japan were mostly similar to the standard levels in records investigated. 3. With the result of the normative standard selection on School Builiding environment factor of prescribed in this study, the controversial points of the standard of ESB in Korea were analyzed and the result was utilized to suggest new preliminary standard of ESB. 4. As the result of the analysis of the controversial points of the standard of ESB in Korea, it was found that the standard of ESB in Korea should be established on a basis of School Health Act and be concretely presented in School Health Regulation and School Health Rule. The factors of each environment was improperly presented in the existing standard of ESB in Korea. Moreover the standard of them was inferior to that of the records investigated and those of in the USA and in Japan and it also showed that the standard of it in Korea was improper to maintain Comfortable Learning Environment. 5. A suggested preliminary standard of ESB acquired through above study as follows: 1) In this study a new kind of preliminary standard of ESB is divided into lighting environment, indoor air environment, noise environment, odor environment and for above classification, reasonable factor and standard should be established and the controling way on each standard and countermeasures against it should be considered. 2) In lighting environment, the factors of natural lighting are divided into daylight rate, brightness, glare. In the standard on each factor, daylight rate should secure 5% of a mean daylight rate and 2% of a minimum daylight rate, brightness ratio of maximum illumination to minimum illumination should be under 10:1, and in glare there should not be an occurrence factor from a reflector outside of the classroom. And the factors of unnatural lighting are illumination, brightness, and glare. In the standard on each factor, illumination should be 750 lux or more, brightness ratio should be under 3 to 1, and glare should not occur. And Optimal reflection rate(%) of Colors and Facilities of Classroom which influences lighting environment should be considered. 3) In indoor air environment factors, thermal factors are divided into (1) room temperature, (2) relative humidity, (3) room air movement, (4) radiation heat, and harmful gases (5) CO, (6) $CO_2$ that are proceeded from using the heating fuel such as oval briquettes, firewood, charcoal being used in most of the classroom, and finally (7) dust. In the standard on each factor, the next are necessary; room temperature: $16^{\circ}C{\sim}26^{\circ}C$(summer : $E.T18.9{\sim}23.8^{\circ}C$, winter: $E.T16.7{\sim}21.7^{\circ}C$), relative humidity: $30{\sim}80%$, room air movement: under 0.5m/sec, radiation heat: under $5^{\circ}C$ gap between dry-bulb temperature and wet-bulb temperature, below 1000 ppm of ca and below 10ppm of $CO_2$, dust: below 0.10 $mg/m^3$ of Volume of dust in indoor air, and ventilation standard($CO_2$) for purification of indoor air : once/6 min.(about 7 times/40 min.) in an airtight classroom. 4) In the standard on noise environment, noise level should be under 40 dB(A) and the noise measuring way and the countermeasures against it should be considered. 5) In the standard on odor environment, odor level under Physical Method should be under 2 degrees, and the inspecting way and the countermeasures against it should be considered.

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수직정원을 활용한 초등학교 식물교육프로그램 운영 효과 분석 (Effect of Plant Educational Programs Elementary School using Vertical Garden)

  • 정나라;유수진;김광진;한승원
    • 한국환경복원기술학회지
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    • 제23권5호
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    • pp.73-86
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    • 2020
  • In the modern era, the elementary schools in the Republic of Korea are advanced with the competitive world. Thus advancement in technology, and other factors in the elementary schools are releases some kind of particulate matter (PM), which causes deleterious effects on school students health, academic program, growth and development. The school students are susceptible to PM particularly, PM10 and PM2.5. Based on this hazardous effect of PM on school students we conducted the research on the elementary schools class rooms by introducing vertical gardening system to get the schools "ever green". The main aim of this study is to investigate the environmental factors in the educational effect program in the class rooms and indoor air quality changes. For the educational effect, the 4th operation program was applied to 2 schools for 2 hours once a month from September to December 2019. Each school conducted a survey on satisfaction, plant friendliness, and environmental sensibilities, targeting classes that participated in the green school program and those who did not. The environmental effects were monitored by installing indoor air quality facility in the program participating classes and the non-participating classes. From November 2019 to December 2019, three factors were measured: PM10, PM2.5, and humidity. The results were analyzed by T-test using the SPSS 24.0 software program. As a result of the analysis, student's overall satisfaction with the program and their intention to re-engage were high in terms of educational effect. It was also found to be effective in emotional, educational, social, and physical aspects. In particular, it was found that there was a statistically significant effect on improving plant friendliness in terms of plant friendliness and environmental sensitivity. In terms of environmental effects, it was found that there was a significant difference between the program-applied and non-programmed classes in PM10, PM2.5, and humidity. Through this study, it was confirmed that the plant education program using vertical gardens is effective in both the educational effect and the improvement of indoor air quality in the classroom. In conclusion, vertical gardening system in the elementary schools should implement for the beneficial of young generation development and back bone to the nation.

하향식 피난구의 경제성 및 피난 소요시간 분석 (Economic and Evacuation Time Analysis of Horizontally-installed Indoor Emergency Exit)

  • 유월;김선국;김기혁;이동훈
    • 한국건축시공학회지
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    • 제18권4호
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    • pp.363-373
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    • 2018
  • 고층 공동주택에서 화재시 현관문을 통해 탈출이 불가능할 경우를 대비해 발코니를 통해 피난이 가능하도록 피난시설을 설치한다. 이는 공동주택 세대의 양방향 피난이 가능하게 하며, 이로 인해 인명피해를 줄일 수 있다. 본 연구에서는 양방향 피난시설인 경량 칸막이, 발코니 대피 공간, 실내형 하향식 피난구의 특징을 살펴보고 이들의 문제점을 개선한 실외형 하향식 피난구를 제시하고 경제성에 대해 분석하였다. 화재 발생 시 피난자는 전통식 피난구를 사용할 때보다 하향식 피난구를 사용할 때 능동적인 탈출 가능 여부를 더 자율적으로 판단 할 수 있다. 따라서 피난자의 피난방식에 따라 피난소요시간에 미치는 영향을 고려하여 계단식과 하향식 피난구를 통한 4가지 피난방식의 피난 소요시간은 시뮬레이션 pathfinder를 활용하여 비교분석하였다. 피난 소요 시간 단축을 위한 적합한 대피방식을 예측 분석 판단하였다. 본 연구의 결과 고층 아파트 하향식 피난구는 계단식보다 총 피난소요시간을 단축할 수 있는 것으로 분석되었다.

이재민 맞춤형 실내 임시주거시설의 생활서비스 개선을 위한 서비스디자인 연구 (A Study on the Service Design for the Improvement of Living Service in the Temporary Residential Facilities for the Victims)

  • 김창룡;김정우
    • 한국재난정보학회 논문집
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    • 제16권3호
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    • pp.526-541
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    • 2020
  • 연구목적: 본 논문은 서비스디자인 방법론을 통해 이재민들의 니즈와 불만사항을 파악 및 분석하여 문제점을 도출하고 이를 개선할 수 있는 실내 임시주거시설에서의 맞춤형 생활서비스를 제공하는 것을 목적으로 한다. 연구방법:더블 다이아몬드 프로세스에 맞춰 발견, 정의, 개발, 그리고 전달 순으로 진행한다. 발견 단계에서는 선행연구 분석과 설문 조사를 통해 이재민의 니즈와 불만사항을 파악한다. 정의단계에서는 실내 임시주거시설 생활서비스의 문제점을 좀 더 구체화하기 위해 페르소나 기법과 시나리오를 작성한다. 개발 단계에서는 현재 실내 임시주거시설에서 제공하는 모든 서비스 프로세스를 상세하게 도식화하여 서비스 블루프린트 작성 및 기존 서비스 전달 과정에서 문제가 발생하는 구간을 발견한다. 전달 단계에서는 문제가 발생하는 단계의 문제점을 개선한 서비스와 기존 서비스 비교한 뒤 개선방안을 제시한다. 연구결과: 실내 임시주거시설에 제공되는 생활서비스 중 이재민과 일반인들이 중요하다고 생각하는 프라이버시 보장 서비스, 노인 돌봄 서비스, 식사·빨래 서비스 문제를 개선할 수 있는 서비스 해결방안을 제시한다. 결론: 본 논문을 통해 제시한 해결방안을 적용한다면 실내임시주거시설에서 크게 문제가 되는 프라이버시 문제, 노인 돌봄 서비스 문제, 그리고 식사·빨래 서비스 문제 개선에 도움이 될 것으로 사료된다.

정부의 체육진흥시설 정책의 과제 (Issues and Directions of National Policy on Sports Facilities)

  • 고의석;조민행
    • 한국산학기술학회논문지
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    • 제19권1호
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    • pp.291-299
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    • 2018
  • 정부가 추진하고 있는 체육진흥시설정책은 지역민을 위한 체육 및 스포츠시설이라는 총론적인 방향에서는 긍정적인 평가가 이루어질 수 있다. 그러나 스포츠의 기반시설 관점에서 정부가 추진하는 운동장 및 체육관 구축의 체육진흥시설정책에 대한 논의가 필요하다. 정부는 공공체육시설사업으로 2016년까지 국민체육센터 220개(기금 6천870억원, 지자체 1조7천60억원), 개방형다목적체육관 194개(기금 1천103억원, 지자체 2천750억 원), 운동장지원사업 1,870개교에 1조3천90억원 등 총 3조7천20억원을 지원하였다. 이러한 지원에도 불구하고 학교운동장의 인조잔디와 우레탄 트랙의 위해성 문제와 개방형다목적체육관의 이용성 문제로 예산낭비의 국고손실을 초래하였다. 정부는 학교운동장이 특정 종목과 특정 팀이 운동장을 사용하면 다른 활동을 수행할 수 없는 협소한 공간이 아닌 기반시설로서 제 기능을 발휘할 수 있도록 학생 및 지역주민의 인구를 고려한 공간 확보라는 거시적 과제에 주력해야 한다. 또한 체육관(체육센터, 개방형다목적체육관 등) 조성 시 두 학급 또는 두 종목이 동시에 프로그램이 진행될 수 있도록 기반시설로서의 실내 바닥공간을 넓혀 실효성을 제고해야 한다. 이를 위해 정부는 체육 및 스포츠시설에서의 기반시설에 대한 충분한 이해와 지식에 근거하여 기준안을 제시해야 하며, 지역주민을 위한 체육 및 스포츠 진흥시설 구축 시 정부의 지나친 규제와 간섭이 아닌 시설주체인 지역의 자율성을 보장하는 방향으로 정책이 추진되어야 한다.

IoT 기반 지하역사 내 바이오필터시스템 설치에 따른 실내공기질 변화 및 영향 요인 분석 (Analysis of Changes and Factors Influencing IAQ in Subway Stations Using IoT Technology after Bio-Filter System Installation)

  • 양호형;김형주;방성원;조흔우;김호현
    • 한국환경보건학회지
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    • 제47권5호
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    • pp.410-424
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    • 2021
  • Background: Subway stations have the characteristics of being located underground and are a representative public-use facility used by an unspecified number of people. As concerns about indoor air quality (IAQ) increase, various management measures are being implemented. However, there are few systematic studies and cases of long-term continuous measurement of underground station air quality. Objectives: The purpose of this study is to analyze changes and factors influencing IAQ in subway stations through real-time continuous long-term measurement using IoT-based IAQ sensing equipment, and to evaluate the IAQ improvement effect of a bio-filter system. Methods: The IAQ of a subway station in Seoul was measured using IoT-based sensing equipment. A bio-filter system was installed after collecting the background concentrations for about five months. Based on the data collected over about 21 months, changes in indoor air quality and influencing factors were analyzed and the reduction effect of the bio-filter system was evaluated. Results: As a result of the analysis, PM10, PM2.5, and CO2 increased during rush hour according to the change in the number of passengers, and PM10 and PM2.5 concentrations were high when a PM warning/watch was issued. There was an effect of improving IAQ with the installation of the bio-filter system. The reduction rate of a new-bio-filter system with improved efficiency was higher than that of the existing bio-filter system. Factors affecting PM2.5 in the subway station were the outdoor PM2.5, platform PM2.5, and the number of passengers. Conclusions: The IAQ in a subway station is affected by passengers, ventilation through the air supply and exhaust, and the spread of particulate matter generated by train operation. Based on these results, it is expected that IAQ can be efficiently improved if a bio-filter system with improved efficiency is developed in consideration of the factors affecting IAQ and proper placement.

영유아보육시설의 생태교육 활성화를 위한 외부공간계획에 관한 연구 (A Study on the Outdoor Space Planning of Child Care Facility for Ecological Education)

  • 이지수;남해경
    • 한국농촌건축학회논문집
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    • 제22권3호
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    • pp.9-16
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    • 2020
  • The trend emphasizes children-oriented, play-oriented ecological education programs for children's ecological education. And most of these nature -friendly and eco-friendly education takes place outdoors. Therefore, outdoor space planning is important in childcare facilities. This case study aims to analyze the actual conditions of outdoor spaces in daycare centers and to provide standard data for outdoor space planning. In order to provide basic data on the improvement direction and planning standards of outdoor spaces, this present study conducted the composition, utilization status and related problems of outdoor spaces for nature -friendly ecological education in childcare facilities. Accordingly, outdoor space planning for ecological education should consider outdoor space characteristics such as free and easy accessibility between indoor and outdoor spaces, openness of space, flexibility, dynamic/static space, and nature affinity. Therefore, for an ecological education environment, children should be able to freely approach nature and play in the natural environment without any restrictions and artificial controls. Also, in urban areas, natural environment such as parks and open spaces should be considered as outdoor play spaces for children.

Status Analysis of Children's Swimming Pool in Korea

  • SEO, Myung Seok;SEO, Won Jae
    • Journal of Sport and Applied Science
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    • 제4권3호
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    • pp.23-28
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    • 2020
  • Purpose: This study sought to explore current status of children's swimming pool in Korea and to generate insights regarding safety management of children's swimming pool. Research design, data, and methodology: The study reviewed literatures including documents of Ministry of Culture, Sports and Tourism and sport facility-related articles. Furthermore, the study collected additional statistics via search engines. Results: First, numbers of swimming pools have been dramatically increased since 2016 and Korea experienced an increase of 37% from 2010 to 2019. Of the 611 indoor swimming pools, most swimming pools are located in Gyeonggi province with 27.7% (n=169). Seoul and Gyeonggi-do have the highest proportion of swimming pools in Korea. Second, in types of swimming pools, 47.6%(n=291) was children's swimming pool which is the highest proportion in the nation. Children's swimming pools are also mostly located in Seoul and Gyeonggi province with 57%. Third, of 372 profit swimming pools, children's pools show the highest number with 78%(n=291). Conclusions: Children's swimming pools are picking up faster than the other types of swimming pool. Yet, safety-related studies are still lack. This provides motivations to produce managerial insights from academia and business sectors. Moreover, more studies of legal issues should be conducted. Implications were discussed.