• 제목/요약/키워드: Ventilation facility

검색결과 164건 처리시간 0.024초

농어촌 재해복구용 모듈러 건축물의 설계안 연구 (A Study on the Design Model of Modular Building System for Disaster Restorations in Fishing and Agrarian Villages)

  • 임재한
    • 한국농촌건축학회논문집
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    • 제9권3호
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    • pp.33-45
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    • 2007
  • Recently, large scale disasters have been occurred in rural areas. Most people suffering from the disaster live in the temporary containers. These could not provide the fundamental occupancy performances such as thermal insulation, ventilation and heating system. It is very important to rebuild the residence for sufferers quickly and safely. Because modular building system has some advantages such as short construction time, mobility, light-weight structure, modularity, flexibility and economical efficiency, it is expected that it could be easily applied to the disaster restoration. So, this research aims at developing the design model of modular building system for disaster restorations in fishing and agrarian villages. For this purpose, current counterplan for restoration was firstly investigated. Also the basic guideline was established through the investigation of current status of residence in fishing and agrarian villages. Finally, 2 types of design model such as single story residence and temporary accommodation facility were proposed. We could see that we could make the flexible building plan when applying the modular building system to the temporary housing for the sufferers.

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RADIATION MONITORING SYSTEM FOR ADVANCED SPENT FUEL CONDITIONING PROCESS FACITLITY

  • Kook Dong-Hak;Choung Won-Myung;Lee Eun-Pyo;You Gil-Sung;Cho Il-Je;Kwon Kie-Chan;Lee Won-Kyoung;Ku Jeoung-Hoe
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2005년도 Proceedings of The 6th korea-china joint workshop on nuclear waste management
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    • pp.149-155
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    • 2005
  • The $ACP^1$ is under development for effective management of spent fuel by converting $UO_2$ into U-metal. For demonstration of this process, $\alpha-\gamma$ type new hotcell was built in the $IMEF^2$ basement. To secure against radiation hazard, this facility needs radiation monitoring system which will observe the entire operating area before the hotcell and service area at back of it. This system consists of 7 parts; Area Monitor for $\gamma$-ray, Room Air Monitor for particulate and iodine in both area, Hotcell Monitor for hotcell inside high radiation and rear door interlock, Duct Monitor for particulate of outlet ventilation, Iodine Monitor for iodine of outlet duct, CCTV for watching workers and material movement, Server for management of whole monitoring system. After installation and test of this, radiation monitoring system will be expected to assist the successful ACP demonstration.

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승강장 스크린도어 설치에 따른 배연설비운영에 대한 연구 (A Study of Smoke Exhaust Facility Operation of Subway Platform with Installation of Platform Screen Door)

  • 이동호;고재웅;김하영
    • 한국안전학회지
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    • 제21권1호
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    • pp.35-40
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    • 2006
  • A study on fire phenomena in a subway transit mass station has been carried out as a part of disaster prevention plan at the subway station. The ventilation facilities installed in both the platform and the trackway are designed to convert into a smoke exhaust system in emergency situation, creating such an environment as necessary for evacuation. 3 dimensional Numerical Simulations based on the CFD are carried out using a simulation tool, Fire Dynamic Simulator. Additionally, four different vent modes are made and performances are compared with the original design mode and each other to find better operation of vents at both the platform and the trackway in case of fire. From the result, an vent operational characteristics under the condition of installed PSD is clarified for the effective smoke and heat removal from the platform area compared with non installed PSD.

열매체 가열기 설비에서의 폭발위험관리에 관한 연구 (A Study on Explosion Risk Management for Hot Oil Heater)

  • 장철;권진욱;황명환
    • 대한안전경영과학회지
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    • 제19권3호
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    • pp.1-9
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    • 2017
  • In the industrial field, various type of fuel have been used for product processing facilities. Recent for 10 years, the usage of natural gas (NG) was gradually increased. Because it has many merits; clean fuel, no transportation, storage facility and so on. There are common safety concept that strict explosion protection approaches are needed for facilities where explosive materials such as flammable liquid, vapor and gases exist. But some has an optimistic point of view that the lighter than air gases such as NG disperse rapidly, hence do not form explosion environment upon release into the atmosphere, many parts has a conventional safety point of view that those gases are also inflammable gases, hence can form explosion environment although the extent is limited and present. In this paper, the heating equipments (Hot Oil Heater) was reviewed and some risk management measures were proposed. These measures include hazardous area classification and explosion-proof provisions of electric apparatus, an early gas leak detection and isolation, ventilation system reliability, emergency response plan and training and so on. This study calculates Hazardous Area Classification using the hypothetical volume in the KS C IEC code.

시설 규모 및 급식비에 따른 유치원 급식소 위생 관리 수행도 (Performance of Hygiene Management according to Capacity and Food Cost of Foodservice in Kindergartens)

  • 김옥선
    • 동아시아식생활학회지
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    • 제24권5호
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    • pp.680-690
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    • 2014
  • This study investigated the performance of hygiene management according to the capacity and food cost of foodservice in kindergartens as a measure of kindergartens foodservice hygiene management. Dietitians from the education office visited 50 kindergartens under the control of Dongbu District Office of Education during January, 2011. Kindergartens were 11 public and 39 private institutions. Over half of kindergartens (n=27) provided foodservice to 50~99 children. About 21 kindergartens had a foodservice cost per student per day of 2,000 won. Regarding personal hygiene, 'whether to wear an accessory or have a manicure' showed the best performance. 'Whether to have their health examined once every 6 months or keep their health records in 2 years' was rarely performed. For food materials, 'whether to buy food appropriate for the quality control standard of food materials' showed the highest performance. The highest performances for storage management of food materials and handling of food was 'whether to store goods within butlery at intervals more than 30 cm from the ground' and 'whether to heat and cook food more than $74^{\circ}C$', respectively. The highest performance for distribution of food and management of facilities was 'the hygienic management of cooking tools and facilities' and 'the proper installation of air-conditioning, heating and ventilation facilities', respectively. The results of this study show that capacity and food cost had the strongest effects on performance of personal hygiene. Especially, smaller facility size could increase performance of foodservice management.

울산광역시 학교급식 조리 환경에 대한 조리사의 인지도 조사 (On the Cooks' Recognition of Culinary Environment of School Feeding in Ul-san)

  • 김해정;유경민
    • 한국조리학회지
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    • 제14권1호
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    • pp.94-106
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    • 2008
  • This study is conducted to explore the cooks' recognition of culinary environment of school feeding among the cooks working for elementary schools, middle schools, and high schools in the Ulsan district. A total of 200 samples were distributed and 185 samples were collected; among them, 182 valid samples were selected for research. Answers were processed by SPSS 12.0. after data coding. As for factor analysis of culinary environment, three factors were extracted, which are general environment, human environment, and facilities equipment environment. It was found that general environment included ventilation(31.5%), temperature (29.0%), humidity(22.1%) in the order of importance; human environment covered cooperation among cooks (28.1%), the number of cooks(25.7%), and professionalism of cooks in the order of importance; facility equipment environment contained the design and layout of facilities and equipment(29.3%), various safety facilities, and safety device(23.3%) in the order of importance. However, a measure for improving work environment, number of cooks, deterioration of equipment, etc. should be considered.

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Prismatic Solar Hybrid Collector 시스템의 에너지 성능 평가에 관한 연구 (Energy Performance Assessment Study of Prismatic Solar Hybrid Collector System)

  • 박준언;김기세;이의준;정모
    • 한국태양에너지학회 논문집
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    • 제23권2호
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    • pp.51-58
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    • 2003
  • PSHC(Prismatic Solar Hybrid Collector) is a passive solar system composed of prismatic acrly glazing, glazing and ventilating fan. This PSHC system is applied to effectively reduce heating ventilation load as well as lighting load. But so far no method appraising thermal performance of this PSHC system has been developed yet. To assess thermal performance of the PSHC system, a prototype PSHC experimental facility and TRNSYS subroutine type-205 model have been developed in Korea Institute of Energy Research (KIER). The results indicated that l)TRNSYS empirical model of PSHC has been properly modeled with actual performance data, 2)a more reliable source of weather data such as NASA and KIER weather station have been also obtained, and therefore, 3)the annual energy performance of PSHC could be assessed based on this proposed TRNSYS model.

수직교반히터 및 시설물 제어를 위한 통합 제어기 개발 (Development of an Integrated Controller to the Control Vertical Agitation Heater and Facilities)

  • 김진하;유승혁;김응곤
    • 한국전자통신학회논문지
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    • 제15권4호
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    • pp.753-758
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    • 2020
  • 본 논문에서는 개발된 수직교반히터를 시설하우스에 적용하고, 그 외 시설물(순환팬, 환기팬, 개폐 모터를 이용한 창문, 천장, 제습)을 통합적으로 제어할 수 있는 제어 시스템을 개발하고자 한다. 이를 통해 작물의 재배 효율을 올리고 무가온 저장고나 저장창고 등이 보유한 수확물의 보관 환경을 개선하여 저장 기간 및 신선도를 증대시키고자 한다. 또한 ICT 모니터링 기술을 추가하여 사용자가 RTC(: Real Time Control)로 재배 및 저장 환경의 변화에 따라 문제가 생겼을 시에 손쉽게 해결할 수 있도록 하고자 한다.

경북지역 중국인 유학생의 대학급식 선택속성에 대한 중요도와 만족도 분석 (Analyzing the Importance and Satisfaction on the University Foodservice Selection Attributes of Foreign Chinese Students in Gyeongbuk Province)

  • 범명명;배현주
    • 한국식품영양학회지
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    • 제27권1호
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    • pp.128-135
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    • 2014
  • The purpose of this study is to analyze the gap in perceived importance-satisfaction rates of foreign Chinese students regarding the university foodservice selection attributes. All statistical analyses are conducted by the SPSS package program (ver 20.0). The results of the statistical analyses are as follows: The validity of the 22 food service selection attributes is being evaluated via the exploratory factor analysis and then five factors are extracted. The five factors are: 'Factor 1. Cleanness and service quality', 'Factor 2. Food quality and price', 'Factor 3. Physical environment', 'Factor 4. Convenience', and 'Factor 5. Service environment'. According to the results of one-way ANOVA, physical environment showed that significant differences across the periods of residence in Korea and the eating frequency at on campus foodservices. On the other hand, the food quality and price, convenience, and service environment showed that significant differences across the periods of residence in Korea. In addition, according to the Importance-Satisfaction Analysis results, 'ventilation of dining room' is the key aspect that university food service managers should reinforce. In conclusion, in order to increase the customer satisfaction rates, the food service managers should not only improve the quality of food and service but also the physical environments of the food service facility.

Air Quality Changes in a Museum Damaged by a Tsunami - Whale and Sea Museum, Iwate, Japan -

  • MATSUI, Toshiya;KAWASAKI, Emi;Huttmann, Imme
    • 보존과학회지
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    • 제35권1호
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    • pp.51-60
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    • 2019
  • This paper provides quantitative data that describes the evolution of the air quality in the Whale and Sea Museum, located in the Iwate prefecture, collected after the 2011 Great East Japan Earthquake and tsunami. The museum was damaged significantly by the disaster, and restoration works continued for over six years. The air quality in the temporary storage facility and museum was monitored during the rehabilitation process. Evaluation of air quality is carried out by gas chromatography- mass spectrometry, ion chromatography and high-performance liquid chromatography. The results showed that the characteristics of the chemical components differed depending on the measurement locations inside the building. The museum atmosphere tended to be alkaline as the airtightness increased because of the maintenance works at the entrance. It was also determined that it was necessary to study the intake/exhaust routes and to clean them according to the contamination degree. In Japan, there are recommended museum air quality standards for acetic acid, formic acid, alkali, and aldehydes. The results indicated that these standards should not be used as a reference for damaged museums. Furthermore, at the temporary storage facilities for to store the collections during the rehabilitation of the museum, solvents such as ethyl benzene, toluene, and xylene are initially abundant, although they can be reduced by ventilation, while other components such as 2E1H was confirmed in this case are likely to remain.