• 제목/요약/키워드: Regional Unit

검색결과 554건 처리시간 0.03초

원수열원 히트펌프 축열시스템의 동절기 성능분석 (Winter Season Performance Characteristics of Raw Water-Source Heat Pump System with a Thermal Storage Tank)

  • 조용;이동근
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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    • pp.202-202
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    • 2011
  • Performance of the raw water-source heat pump system with a thermal storage tank has been analyzed in winter season. The raw water is transferred through the multi-regional water supply system from Han river. Raw water is large temperature difference resource compared with groundwater. Although the raw water temperature drops to $0.6^{\circ}C$ due to the heavy snowfall and the severe cold in late January and early February, 2010, the system has been normally operated without any trouble this winter. The unit COP and system COP considered all pump power consumption were estimated based on the second-by-second data of the all sensors. The monthly averaged unit COP and system COP are 3.37 and 2.76 respectively with $1.4^{\circ}C$ of raw water in January, 3.55 and 2.89 with $1.6^{\circ}C$ raw water in February, 3.82 and 3.15 with $5.4^{\circ}C$ raw water in March. The performance of the system are increased with raw water temperature, and the COPs are higher than the water-to-air heat pump system using relatively high temperature raw water from Daecheong reservoir because the water-to-water system was operated on the full load condition and was stopped when the thermal storage tank was full of the high temperature water.

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Life cycle impact assessment of the environmental infrastructures in operation phase: Case of an industrial waste incineration plant

  • Kim, Hyeong-Woo;Kim, Kyeong-Ho;Park, Hung-Suck
    • Environmental Engineering Research
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    • 제22권3호
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    • pp.266-276
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    • 2017
  • A life cycle impact assessment was applied in an industrial waste incineration plant to evaluate the direct and indirect environmental impacts based on toxicity and non-toxicity categories. The detailed life cycle inventory of material and energy inputs and emission outputs was compiled based on the realistic data collected from a local industrial waste incineration plant, and the Korean life cycle inventory and ecoinvent database. The functional unit was the treatment of 1 tonne of industrial waste by incineration and the system boundary included the incineration plant and landfilling of ash. The result on the variation of the impact by the unit processes showed that the direct impact was decreased by 79.3, 71.6, and 90.1% for the processes in a semi dry reactor, bag filter, and wet scrubber, respectively. Considering the final impact produced from stack, the toxicity categories comprised 91.7% of the total impact. Among the toxicity impact categories, the impact in the eco-toxicity category was most significant. A separate estimation of the impact due to direct and indirect emissions showed that the direct impact was 97.7% of the total impact. The steam recovered from the waste heat of the incineration plant resulted in a negative environmental burden.

6차산업화 활성화를 위한 한·일 정책 비교 연구 (A Comparative Study on Korean and Japanese Policy for the Activation of Sixth Industry)

  • 김경찬;조석호;예병훈;손용훈
    • 농촌계획
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    • 제21권2호
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    • pp.149-162
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    • 2015
  • Korean sixth industrialization policy is similar to that of Japanese such as goal of policy, setup and promotion method of specific policy projects as it benchmarked a Japanese case. First of all, the certification systems of both countries, the most representative policy, are very alike that the governments officially certificate management bodies, prepare the ground for continuous sixth industrialization, devide intermediate support organization into the central unit and regional unit, and have the function of support and control of sixth industrialization management bodies. Furthermore, both countries create fund for sixth industrialization as an investment support policy, and push forward with the phased support policy businesses such as individual support and connected support for management bodies. However, there are some differences between certification systems of both countries such as process-oriented or result-oriented for certification, subtle differences of the role in support organization, and the range and rate of support.

회복실에서의 환자 및 마취 관련 요인에 따른 간호업무량 비교 (Comparison of Nursing Workload Associated with Patient and Anesthetic Factors in the Post-anesthesia Care Unit)

  • 이윤영
    • 간호행정학회지
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    • 제14권4호
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    • pp.432-439
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    • 2008
  • Purpose: The purpose of this study was to examine nursing workload associated with patient and anesthetic factors in the post-anesthesia care unit(PACU). Method: The data used in this study were collected from February 26th, 2008 to May 16th, 2008. The subjects were 828patients and collected data were analyzed by using SPSS program. Results: It was found that there were statistical differences in gender, age, past history, type of anesthesia, duration of anesthesia, type of surgery. The mean PRN for nursing workload was 25 for below 17 years, and 27.5 for above 61 years. The mean PRN for nursing workload was 27 for general anesthesia, and 16 for regional anesthesia. The mean PRN for nursing workload was 29 for orthopedic surgery and neurosurgery, and 23 for ophthalmology. The mean PRN for nursing workload was 24.6 for below 1hour in duration of anesthesia, and 27.5 for above 2hours in duration of anesthesia. Conclusion: This study was carried out to examine nursing workload in the PACU. The results from this study will be help to improve nursing in PACU through efficient distribution of nursing workload in PACU.

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도서지역의 효율적 토지적성평가 방안 (The Method for Efficient Land Suitability Assessment in an Island Group)

  • 고홍석;박송주;고남영;성동권
    • 대한공간정보학회지
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    • 제13권3호
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    • pp.15-24
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    • 2005
  • 국토의 난개발을 방지하기 위해 도입된 토지적성평가는 공간 및 물리적인 특성이 서로 다른 육지와 도서지역의 평가기준을 일률적으로 적용하는 데 있어서 많은 문제점을 내포하고 있다. 본 연구에서는 공간적 지리적 지역적 특성이 뚜렷이 다른 도서지역의 효율적 토지적성평가방법의 연구를 위해서 생활권역을 고려한 평가단위와 이를 기반으로 한 평가지표 개발 등에 관하여 연구였다. 평가권역을 고려한 평가단위에서는 중생활권의 평가가 가장 양호하였으며 거리분석에 있어서는 해양을 고려한 거리 분석방법을 제안하여 도서간의 접근성을 고려한 평가방법을 제시하였다.

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지역난방 공동주택의 단지별 난방사용량 분석 연구 (Heating Energy Consumption Analysis of the Apartment Applied District Heating System)

  • 박선효;이현정;권경우;이병석;김양섭
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
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    • pp.293-298
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    • 2012
  • The purpose of this study is performance validation of district heating apartments about heating energy consumption and analysis of energy consumption by unit characteristics. The heating energy consumption of the existing apartments was analyzed and the analyzed results will be used for energy saving technology development and policy making. The heating energy consumption data about total 78 apartment complexes, 56,910 units in Gangnam-Gu, Seoul, Korea were investigated from October, 2010 to April 2011. The analysis results are as follows; The mean heating energy consumption is 98[kWh/m2]. The energy consumption of Apgujung-Dong, Daechi-Dong is higher than that of mean valuse. The energy consumption deviation by deterioration, unit area, core type and regional group is very high. Specially, building deterioration casts a long shadow.

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현대화시범학교(現代化示範學校)의 건축기준(建築基準) 마련을 위(爲)한 열린교육(敎育) 현황(現況)과 실태(實態)에 관(關)한 의식조사(意識調査) 연구(硏究) (A Consciousness Survey Study on the Real Condition of Open-Education in the Modernization Model of Elementary School for Schematic Design)

  • 문석창;곽종용;한경훈
    • 교육시설
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    • 제10권3호
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    • pp.27-36
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    • 2003
  • This paper aims to analyse facilities and characteristics of management for 21 model schools' open education system. So, we analyzed the class management and the methods of open education, teacher's mind, the shape and form of study group and we investigated teachers' satisfaction rate about the physical space. As a result, it is considered that the change for structure of learning space unit is needed because of the limitation in standard class size by the rule for construction. Considering the decrease of real using space by the space of learning materials or learning furniture, it should enlarge the structure of learning space unit or decrease the number of students. And to use multipurpose space practically as a place of study, it need that the multiple support of study program for teachers by government, support in course of study, giving training opportunity to teachers, distribution of personal management.

우리나라 오염총량관리제도의 개선 및 적용: 1. 안양천 유역의 오염부하량 산정 (Improvement and Application of Total Maximum Daily Load Management System of Korea: 1. Calculation of Total Amount of Pollutant Load in the Anyangcheon Watershed)

  • 김경태;정은성;김상욱;이길성;성진영
    • 한국물환경학회지
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    • 제25권6호
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    • pp.972-978
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    • 2009
  • This study modifies the present total maximum daily load (TMDL) system of Ministry of Environment and applies to the Anyangcheon watershed. Hydrologic Simulation Program-FORTRAN (HSPF) model is used to simulate both runoff and non-point source pollution, simultaneously, instead of QUAL2E. The drought flow (355th daily flow) is proposed for the target water quantity since it is easier to satisfy low flow (275th daily flow) for the target water quality than drought flow. The increase of discharge is more than the increase of pollutant load except for the period under low flow. The measured unit loads for non-point source are used to consider the regional runoff characteristics. The measured water quantity and quality data are used since the ministry of environment supports only water quality. This analysis results show some reasons for the improvement of the present TMDL system of Korea.

말레이시아 신도시 주거단지 계획에 영향을 미치는 법률적 요소 (Regulatory Factors in Shaping New Towns of Malaysia)

  • 이리나;주서령
    • 한국주거학회논문집
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    • 제25권4호
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    • pp.1-9
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    • 2014
  • The post-war period has witnessed the emergence of new towns in a number of countries in Southeast Asia. New town development started in Malaysia with Petaling Jaya as a satellite town in 1953 to accommodate the rapid growing population of Kuala Lumpur. New towns have been designed in accordance with the British town planning principles, based on the modern ideal city. Nonetheless, they have constituted a regional character as they have incorporated local factors such as local technologies as well as site and climatic conditions. In the shaping of the new towns in modern cities, regulatory aspects have played important roles. The regulations decide the basic framework for planning of new town, block plan and unit plan. The ultimate goal of this study is to understand the identity of the new town planning of Malaysia. As a first step, we reviewed the local regulations, standards, and design guidelines which are applicable to the new town planning from the national land use to local plans. As a result, we categorized the guidelines into four areas: urban space, site plan, street system, block plan and unit plan. We expect this study to provide the framework of the Malaysia's new town planning from the perspective of the local regulations.

유역의 상사성을 이용한 Clark 모형의 매개변수 해석 (Analysis of the Clark Model Using the Similarity Characteristics of the Basin)

  • 성기원
    • 한국수자원학회논문집
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    • 제32권4호
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    • pp.427-435
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    • 1999
  • Clark 모형은 홍수수문학에서 널리 이용되는 합성단위유량도 추정을 위한 모형이다. 본 연구에서는 미계측유역에 Clark 모형을 적용하기 위한 매개변수 추정기법을 고안하여 적용하였다. 모형의 시간-면적유하곡선은 해석적인 방법으로 유도하였으며 모형을 무차원화 하였다. 도달시간의 계산을 위하여 지형학적 자기상사성을 이용한 공식을 적용하였으며 저류상수는 유역의 시간특성의 상사성 공식을 이용하여 추정하였다. 제안된 모형의 타당성을 검토하기 위하여 동곡의 실측자료와 모형의 결과를 비교한 결과 비교적 잘 일치되는 경향을 보여주었다.

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