• 제목/요약/키워드: Energy Standard

검색결과 3,170건 처리시간 0.038초

폐타이어 재 자원화를 위한 연구 (A Study on Recycling of Waste Tire)

  • 이석일
    • 한국환경보건학회지
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    • 제26권4호
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    • pp.38-44
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    • 2000
  • Compared to other waste, waste tire has much discharge quantity and calorie. When we use waste heat from waste tire, it can be definitely better substitute energy than coal and anthracite in high oil price age. To use as a basic data for providing low cost and highly effective heating system, following conclusion was founded. Annual waste tire production was 19,596 million in 1999, Recycling ratio was almost 55% and more than 8.78 million was stored. Waste tire has lower than 1.5% sulfur contain ratio which is resource of an pollution, So it is a waste fuel which can be combustion based on current exhaust standard value without any extra SOx exclusion materials. Waste tire has 9,256Kcal/kg calorific value and it is higher than waste rubber, waste rubber, waste energy as same as B-C oil. When primary and second air quantity was 1.6, 8.0 Nm$^3$/min, dry gas production time was 270min and total combustion time was 360 min. In the SOx, NOx, HC of air pollution material density were lower than exhaust standard value at the back of cyclone and dusty than exhaust standard value without dust collector.

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Analysis of Standard and FLIP Fuel Mixed Loading Patterns in TRIGA Mark-III Reactor

  • Kim, Jung-Do;Lee, Jong-Tai;Yook, Chong-Chul
    • Nuclear Engineering and Technology
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    • 제11권4호
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    • pp.287-293
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    • 1979
  • TRIGA Mark-III 원자로에서 사용하는 표준형 및 FLIP형 핵연로의 혼합장전 방법을 해석하였다. 검토된 핵연로 장전방법중 B링에 표준형 그리고 그외의 링에는 FLIP형 핵연료를 장전하는 방법이 핵연료의 온도, 냉각재의 자연대류 및 central thimble에서의 효율적인 열중성자 이용면에서 가장 바람직함을 입증하였다. 또한 핵연료 장전방법에 따른 beamport에서의 열중성자 이용에 관해서도 평가하였다.

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FMEA를 이용한 수소 국제표준 제정의 방법론 (Methodology for the International Standardization of Hydrogen using FMEA)

  • 구연진;강병익;임상식;조영도
    • 한국가스학회지
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    • 제22권4호
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    • pp.7-12
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    • 2018
  • 수소 에너지는 20 세기 대표에너지인 석유, 석탄의 대체 에너지로 각광받고 있다. 또한, 수소에너지가 가지고 있는 미세먼지 제로, 풍부한 에너지원 그리고 생태계의 무영향 등의 이점은 다른 신재생 에너지원보다 비교우의를 점하도록 하고 있다. 하지만, 수소 에너지의 명확하지 못한 제품 개발기준과 사용법은 수소 에너지 관련 제품군의 사고 위험도를 높이고, 수소의 높은 에너지 준위는 사고 발생 시, 큰 사회적 문제를 일으킬 요소를 내재하고 있다. 따라서, 본 연구는 빠른 수소 에너지의 표준화 방안을 제시하여 신제품 개발이 대부분인 수소 에너지 관련 제품의 안전한 시장 정착에 도움을 주고자 한다.

Studies on the Quality Control of Insulin Radioimnunoassay Kit (I) -Pitfalls in Radioimmunoassay of Insulin-

  • Lee, Kyung-Hee;Awh, Ok-Doo;Kim, Jae-Rok
    • Nuclear Engineering and Technology
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    • 제10권4호
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    • pp.223-229
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    • 1978
  • 인슈린방사면역측정(IRIA)에서 흔히 목격하는 비정상적인 표준투여응답곡선 (standard dose response curve)을 정온유지 (incubation) 조건을 변화시킴으로써 해석 하였다. 그와 같은 이상(abnormality)의 원인은 두 반응물질간의 불안전한 평형에 있는 것으로 밝혀졌다. 인슈린측정용 혈청시료의 온도를 조절함으로써 혈청시료에 대한 B/F 값이 표준 곡선의 측정가능범위로부터 크게 벗어나는 원인을 조사할 수 있었다. 이들 두 실패요인은 주로 정온유지조건에 관계되었으므로 4$^{\circ}C$에서 48시간 실시하는 정온유지조건이 IRIA를 위하여 강조되었다.

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녹색건축물 인증제도의 의료시설 평가에 관한 연구 - BREEAM, LEED, CASBEE의 평가방법과 평가내용 비교·분석을 중심으로 (A Study on Green Building Certification Criteria for Healthcare Facilities - Focused on System and Contents for Healthcare in BREEAM, LEED, CASBEE)

  • 윤은지;임영환
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제22권3호
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    • pp.17-26
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    • 2016
  • Purpose: As the concerns for the environment are gradually prioritized, increasing interests of environment-friendly buildings are drawn. The Green Standard for Energy & Environmental Design (G-SEED) has been strengthened. However, there are no specific assessment criteria that reflect the special situation of healthcare facility. UK, US and Japan have green building certifications specially designed to evaluate sustainable healthcare facilities. This study has been started in order to provide basic information for developing assessment criteria for healthcare facilities in Korean Green Standard for Energy and Environmental Design. Methods: In this study, we investigated three foreign green building certifications and compared their assessment system and criteria for healthcare buildings. Results: Each of the three foreign certification standards showed the difference in the system, but all contained the contents specific to healthcare facilities. Evaluation items were affected by regional cultural environment and also medical environment. Patient safety and integrative planning were the most important assessment contents. Implications: Based on this analysis, Korean Green Standard for Energy & Environmental Design for healthcare facilities will be developed.

해외 신재생연료 의무혼합제도 비교분석 연구 (Study on Comparison of Nenewable Fuel Standard Policy on Global)

  • 임의순;김재곤;정충섭
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2011년도 추계학술대회 초록집
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    • pp.150.1-150.1
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    • 2011
  • The global rise of greenhouse gas(GHG) emissions and its potentially devastating consequences require a comprehensive regulatory framework for reducing emissions, including those from the transport sector. alternative fuels and technologies have been promoted as a means for reducing the carbon intensity of the transport sector. Renewable fuel policies were historically motivated by energy security concerns, and to promoted agricultural industries. In the last decade, biofuels have also been discussed as low or net-zero carbon soures of energy for transportation. Hence, the development of biofuels has been supported by a range of policy instruments, including volumetric targets or blending mandates, tax incentives or penalties, preferential government purchasing, government funded research, development in world-wide. As one of the most powerfuel instruments, renewable fuel mandates require fuel producers to produce a pre-defined amount(or share) of biofuels and blend them with petroleum fuel. In this study, we reviewed Renewable Fuel Standard(RFS, USA), Renewable Transport Fules Obligation (RTFO, UK) as a renewable fuel mandate policy to reduce GHG. This includes not only mandate system for blending of biofuels in transport fuels, but also sustainability to use biofuels in this system.

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Determination of the Frumkin and Temkin Adsorption Isotherms of Underpotentially Deposited Hydrogen at Pt Group Metal Interfaces Using the Standard Gibbs Energy of Adsorption and Correlation Constants

  • Chun, Jinyoung;Jeon, Sang K.;Chun, Jang H.
    • 전기화학회지
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    • 제16권4호
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    • pp.211-216
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    • 2013
  • At Pt(111), Pt(100), Pt, and Rh interfaces, the Frumkin adsorption isotherm of underpotentially deposited hydrogen (UPD H) and related electrode kinetic data are determined using the standard Gibbs energy of adsorption. The Temkin adsorption isotherm of UPD H correlating with the Frumkin adsorption isotherm of UPD H is readily determined using the correlation constants between the Temkin and Frumkin or Langmuir adsorption isotherms. At the Pt(111), Pt(100), Pt, and Rh interfaces, the lateral repulsive interaction between the UPD H species is interpreted using the interaction parameter for the Frumkin adsorption isotherm. The lateral repulsive interaction between the UPD H species at the Pt(111), Pt(100), Pt, and Rh interfaces is significantly different from the lateral attractive interaction between the overpotentially deposited hydrogen (OPD H) species at Pt, Ir, and Pt-Ir alloy interfaces.

TRY 방법론에 의한 표준일사량데이터 평가 (Evaluation of Typical Solar Radiation Data by the TRY Methodology)

  • 유호천;이관호;김경률;박소희
    • KIEAE Journal
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    • 제7권6호
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    • pp.23-28
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    • 2007
  • Limited fossil fuels and unstable energy supply are considered as one of the critical problems in architecture requiring large amounts of energy. In order to this challenge, environment-friendly architecture design is required. Clear data should be prepared to apply solar energy to architecture aggressively and properly. This study used FS statistical analysis data regarding average daily solar radiation of Seoul observed over 20 years to find out standard year and standard daily solar radiation. This study also aims to compare and evaluate an appropriate method of selecting a standard year which is too close to measurement value through comparison and analysis with daily solar radiation acquired by applying overseas researchers' suggesting weight factor. As a result, the data nearest to measurement value of daily solar radiation was UK CIBSE TRY(TYPE 2) displaying 0.100in t-statistic index. For UK CIBSE TRY(TYPE 2), weight factor was applied to three climatic elements except relative humidity. TYPE 1 and TYPE 3 recorded 0.343 and 0.367, respectively, showing higher record of t-statistic than TYPE 2. TYPE 1 was calculated through FS statistical value of single data about daily solar radiation with other climatic elements excluded. For TYPE 3, relative humidity was added to TYPE 2. In particular, since TYPE 2 was closer to the measurement value compared to the others, it is necessary to consider relationship with other climate elements if other climate elements are added.

석탄유동층 보일러에 RPF 혼소시 운전조건 및 대기오염물질 배출 특성 변화 (Operating condition and air pollutant emission when do RPF co-combustion in coal fluid bed boiler)

  • 윤균덕;박인출;박종경;조연행;최연석;선도원;박도현
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2006년도 춘계학술대회
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    • pp.527-530
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    • 2006
  • Because price of fossil fuel rises, necessity about alternative energy was risen. Studied co-combustion of RPF to coal fluid bed boiler by necessity of these althernative energy. Purpose of this study to coal fluid bed bioler RPF when did co-combustion, change operating condition and characteristic of air pollutant examine according to change of fuel characteristic, operating condition examined about combustion chamber temperature, oxygen content etc. and air pollutant examined about material that is included to allowable exhaust standard and dioxin. Co-combustion condition was 5%. It was no peculiar under test result operating condition. Concentration of Co and HCl rose according as do RPF co-combustion and the other pollutants had hardly changed. Dioxin is low concentration level more than $0.1ng-TEQ/Sm^3$. There was no pollutant that exceed akllowable exhaust standard for boiler but $SO_x,\;NO_x$ were exceeded about allowable exhaust standard for incinerating facility.

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Development of Meander-shaped Metallic Magnetic Calorimeters

  • Yoon, W.S.;Jang, Y.S.;Kim, G.B.;Lee, H.J.;Lee, J.Y.;Lee, M.K.;Kim, Y.H.
    • Progress in Superconductivity
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    • 제14권2호
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    • pp.102-105
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    • 2012
  • We are developing meander-shaped metallic magnetic calorimeters using micro-fabrication methods. A planar Nb coil in a meander shape was fabricated on a Si substrate. The coil was designed to have a persistent current using a metal heater evaporated on a part of the coil. A paramagnetic sensor, $5{\mu}m$ thick Au:Er foil, was glued on top of the meander structure with epoxy. The magnetization and heat capacity were measured at different temperatures, and applied field currents matched well with expected values. The detector showed an energy resolution of 4 keV FWHM for the 5.5 MeV alpha particles.