• 제목/요약/키워드: energy resources

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Risk Management 관점에서 신재생에너지 투자 (Risk Management and Governmental Investment on New & Renewable Energy)

  • 안은영
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2006년도 춘계학술대회
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    • pp.360-363
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    • 2006
  • Regester & Larkin(2005) suggest the issue and risk lifecycle analysis method in risk management, made up of the potential, emerging, current, crisis, and dormant stages. Investment on New & Renewable Energy is meaningful in effect ive risk management for diminishing or reducing the shock of a energy current, at the potential stage. In this study, we survey the risk of traditional fossil fuel projects and develop the risk analysis model for new & renewable energy projects specially geothermal energy resources and gas-hydrate resources.

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계측기기 측정을 통한 생활폐기물 소각시설의 에너지 회수효율 산정 연구 (Estimation of Energy Recovery Rate of Municipal Waste Incineration Facilities through Measuring Instruments)

  • 권영현;강준구;고영재;유하녕;권준화;박호연;전태완;이영기
    • 한국폐기물자원순환학회지
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    • 제35권8호
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    • pp.770-776
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    • 2018
  • This study measured the energy recovery rate of each municipal waste incineration facility according to the revised energy recovery rate estimation method, which targeted four municipal waste incineration facilities (Unit No. 7). The results calculated by the measuring instruments were used for each factor to estimate the recovery rate, and the available potential of available energy was examined by analyzing the energy production and valid consumption. As a result of the low heating value, 2,540 kcal/kg was calculated on average when the LHVw formula was applied, which is approximately 116 kcal/kg higher than the average design standard of 2,424 kcal/kg. The energy recovery rate was calculated as 96.9% on average based on production and 67.5% based on effective consumption, and the analysis shows that approximately 29.4% energy can be used.

지니계수를 이용한 시군구별 신재생에너지 자원의 불균등성 분석 (Analysis of the Regional Inequalities of Renewable Energy Resources using Gini's Coefficients)

  • 이지민
    • 농촌계획
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    • 제22권2호
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    • pp.109-119
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    • 2016
  • Most of countries are trying to increase the supply of renewable energy as the substitute of the fossil energy for reducing greenhouse gas emissions. However, renewable energy sources account for only about 3.86% of the total Korea primary energy supply. To increase the rate of renewable energy in Korea's energy consumption, various policies for expanding the use of renewable energy should be applied. Also these policies should be consider renewable energy resources distribution and regional inequality. In this study, the potentials of photovoltaic, wind power and bioenergy from rice straw, livestock waste and food waste are calculated and the distribution characteristic and regional inequalities are analyzed using Gini's coefficient and Gini decomposition method. As the results, technical potentials of photovoltaic and wind power of city region(Gu) has more potential rate than theoretical potentials. Livestock waste has the most unequal distribution (Gini's coefficient: 0.617) among renewable resources.

국내(國內) 바이오매스 에너지 잠재량(潛在量) 및 밀집도(密集度) 분석(分析) (Analysis of Biomass Energy Potential and Density in Korea)

  • 국진우;신지훈;류호성;이시훈
    • 자원리싸이클링
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    • 제22권5호
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    • pp.56-62
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    • 2013
  • 에너지 부족과 지구온난화 문제들을 동시에 만족 시킬 수 있는 바이오매스 자원의 효율적 이용을 위해 국내에서 공급받을 수 있는 농산, 임산, 축산, 도시 생활 폐기물 등의 바이오매스 자원량을 기존에 발표된 자료들을 통합하여 분석하였다. 또한 자원량을 각 지역별 면적으로 나눈 지역별 바이오매스 자원 밀집도를 구하였다. 바이오매스 발생량의 분석은 가용할 수 있는 자원 잠재량을 파악할 수 있으나 지역별 밀집도 분석은 바이오매스 수집에 따른 비용을 고려한 바이오매스 자원 이용 가능성을 예측할 수 있도록 도와주고 바이오매스 자원에 따른 적절한 전환 공정 선택도 예측할 수 있도록 해준다.

강변여과수(충적층 및 하상)의 열원을 이용한 지열에너지 활용에 관한 연구 (A Study on Application of The Available Geothermal Energy From Riverbank(including Alluvial and Riverbed deposits) Filtration)

  • 김형수;정우성;안영섭;황기섭
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2006년도 하계학술발표대회 논문집
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    • pp.209-214
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    • 2006
  • In this study, application of groundwater thermal energy by use of riverbank filtration(RBF) system is reviewed and checked as an energy resources. Also, the cooling and heating system using RBF was developed in Chang-Won Waterwork site to examine the feasibility in real operation of the system. We estimates the roughly overall energy obtained from RBF system if the system is used in cooling and heating. The water temperature and room temperature have been monitored to evaluate the efficiency of the system and the preliminary results show that the geothermal energy obtained by RBF could be adopted in cooling and heating energy source efficiently.

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베를린 제1회 세계풍력회의를 다녀와서(1) (The World Wind Energy Conference in Berlin (1))

  • 기우봉
    • 기술사
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    • 제35권4호
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    • pp.52-55
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    • 2002
  • The development of environment-friendly Energy Resources (New Renewable Energy Resources) is one of the global topics these days, considering CO2 Reduction Agreement by Kyoto Protect and the limit of Conventional Energy Resources in near future. Among the New Renewable Energy, Wind Energy is the most feasible Renewable Energy in view of economical and technical aspect at this moment. Last 10 years the Wind Energy Development was really dramatical in Europe. especially in Germany, Denmark and Spain. In this circumstance World Wind Energy Conference was held in Berlin Germany, in order to review the present status and future development of the Wind Energy. This report is a brief report of the Conference .

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A development of system dynamics model for water, energy, and food nexus (W-E-F nexus)

  • Wicaksono, Albert;Jeong, Gimoon;Kang, Doosun
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2015년도 학술발표회
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    • pp.220-220
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    • 2015
  • Water, energy, and food security already became a risk that threatens people around the world. Increasing of resources demand, rapid urbanization, decreasing of natural resources and climate change are four major problems inducing resources' scarcity. Indeed, water, energy, and food are interconnected each other thus cannot be analyzed separately. That is, for simple example, energy needs water as source for hydropower plant, water needs energy for distribution, and food needs water and energy for production, which is defined as W-E-F nexus. Due to their complicated linkage, it needs a computer model to simulate and analyze the nexus. Development of a computer simulation model using system dynamics approach makes this linkage possible to be visualized and quantified. System dynamics can be defined as an approach to learn the feedback connections of all elements in a complex system, which mean, every element's interaction is simulated simultaneously. Present W-E-F nexus models do not calculate and simulate the element's interaction simultaneously. Existing models only calculate the amount of water and energy resources that needed to provide food, water, or energy without any interaction from the product to resources. The new proposed model tries to cope these lacks by adding the interactions, climate change effect, and government policy to optimize the best options to maintain the resources sustainability. On this first phase of development, the model is developed only to learn and analyze the interaction between elements based on scenario of fulfilling the increasing of resources demand, due to population growth. The model is developed using the Vensim, well-known system dynamics model software. The results are amount of total water, energy, and food demand and production for a certain time period and it is evaluated to determine the sustainability of resources.

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