• 제목/요약/키워드: Economic evaluation

검색결과 528건 처리시간 0.142초

수산자원회복계획의 성과평가 개선방향에 관한 연구 (A Study on Establishing the Performance Evaluation System of the Fish Stock Rebuilding Plans)

  • 김대영;이정삼;김도훈
    • 수산경영론집
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    • v.42 no.3
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    • pp.15-29
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    • 2011
  • The Fish Stock Rebuilding Plan (FSRP) is evaluated as one of the most effective fisheries policies domestically and internationally. FSRP is a comprehensive fisheries policy, including target stock size, rebuilding period, application of management measures, and participation of fishermen. The performance outcomes of FSRPs have been partially evaluated for recommendation for stock rebuilding in Korea, while they are fully evaluated in other countries that have implemented FSRPs. The performance evaluation system for FSRP is very needed to enhance its effectiveness as one of fisheries policies. That is, the system where problems can be reconsidered, achieving targets can be evaluated, and the plan can be modified should be implemented. This study classified the performance evaluation of FSRP into the economic evaluation as a quantitative analysis and the policy evaluation as a qualitative analysis. In the economic evaluation, the sustainability of fishery resources, the stability of fishing business, the efficiency of fishery production, and efficient utilization of fishery resources can be considered. As analytical methods for the economic evaluation, the bioeconomic model, efficiency estimation model, the dynamic MEY model can be utilized. The qualitative evaluation is to assess the qualitative performances of FSRPs, including interviews and surveys with fishermen and fisheries experts. In the survey, many different items can be included by evaluation factors which are related to policies such as timeliness, transparency, effectiveness, etc. In addition, the study suggested the performance evaluation system and procedures for objective and efficient evaluation of FSRPs. In order to practically apply the developed performance evaluation model, the pilot project is needed. That is, from the application of pilot project, detailed research methods, effective procedures, and evaluation factors can be investigated.

태양광발전시스템이 적용된 그린홈의 경제성 평가에 관한 연구 - 대구시 달성군 사례를 중심으로 - (A Study on the Economic Evaluation of Green Home Applied Photovoltaic System - Focused on Dalseung-Gun of Daegu City in South-Korea -)

  • 김광원;서윤규;홍원화
    • 대한건축학회논문집:계획계
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    • v.30 no.5
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    • pp.221-228
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    • 2014
  • We live in a period when we need not only food, clothes and house but also energy for our survival. But in the worldwide perspective, the energy is on the brink of being exhausted and also the use of fossil fuel makes the global warming accelerate. In Korea, in order to save energy, we are spreading business one million Green Home by 2020. Green Home consist of 5 types, such as photovoltaic, solar thermal, geothermal, small wind power, fuel cells, but photovoltaic accounts for 85% most of the case in 2012. Photovoltaic system has been introduced to many advantages clean, unlimited energy source, maintenance is easy, life is long, but there is not economic analysis based on reality. In this paper, to overcome the limitations of economic evaluation applied the simulation in the existing paper, we performed economic evaluation to target the Green Home have been applied photovoltaic system in Okpo-myon Dalseong-gun Daegu. For this reason, we had a site investigation 11 households Green Home have been applied photovoltaic system in Okpo-myon. We monitored the annual power consumption and power generation from June 2012 to May 2013. Therefore, the purpose of this study was to provide the basic data that can use when you apply photovoltaic system of Green Home.

IoT기반 철도 화차 안전운송 통합 품질관리시스템에 관한 경제성 평가지표 분석 (Economic Evaluation Analysis of Effect of Train Freight Car Safety Transport Integrated Quality Management System Based on Internet of Things(IoT))

  • 원종운;윤치호;박상찬
    • 품질경영학회지
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    • v.44 no.4
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    • pp.869-881
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    • 2016
  • Purpose: The objective of this study is to verify the economic validation of quality management integrated train freight car by analyzing economic evaluation indicators such as benefit and cost, net present value, and inter rate of return. Methods: First, we itemize benefit and cost field by reviewing literatures; Benefit consists of 1)Safety, 2)Operation, and 3)Maintenance; Cost consists of 1)Set-up fee, 2)Wireless internet fee, and 3)Cloud storage using fee. Second, based on these estimated values, we conduct an economic evaluation analysis. Among them, benefit and cost, net present value, and internal rate of return are selected. Results: As a result, all estimated values are highly over criterion of economic validity($$B/C{\geq}_-1$$, $$NPV{\geq}_-0$$, $$IRR{\geq}_-R$$); 1)benefit over cost ratio is 28.22, 2)Net present value is 8,121.66million KRW, and 3)Internal rate of return value is 2272%. Conclusion: The findings of this study will help making a decision when train industry adopts IoT technology for improving the effectiveness.

발효에 의한 수소생산의 경제성 평가 (Economic Evaluation of Hydrogen Production by Fermentation)

  • 김봉진;김종욱;박상용
    • 한국수소및신에너지학회논문집
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    • v.19 no.2
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    • pp.145-155
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    • 2008
  • This paper deals with an economic evaluation of hydrogen production by fermentation. We evaluate the economic feasibility of domestic hydrogen production by fermentation utilizing glucose and waste water sludge in terms of hydrogen production prices. In addition, we make some sensitivity analysis of hydrogen prices by changing the values of input factors such as the price of glucose, the capital cost of the hydrogen production system, and the hydrogen production yields. The estimated hydrogen prices of the two-step dark-light hydrogen production by fermentation utilizing glucose was $5,347won/kgH_2$, and the single-step hydrogen production by anaerobic fermentation utilizing waste water sludge was $4,255won/kgH_2$, respectively. It is expected that the hydrogen production price by anaerobic fermentation can be reduced if we produce methane or hydrogen utilizing by-products such as alcohols and organic acids, or the government imposes some legal regulations on the treatment of waste water sludge.

주택면적의 변화에 따른 가정용 초소형 연료전지 코제너레이션 시스템의 경제성 분석에 관한 연구 (A Study on the Economic Evaluation with Super-Micro Fuel Cell Home Cogeneration System by Varying the Floor Area of House)

  • 노철우;김민수
    • 신재생에너지
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    • v.4 no.2
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    • pp.45-51
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    • 2008
  • The fuel cell system is environment-friendly and energy efficient system. Especially, the fuel cell cogeneration systems providing heat and electricity to buildings have been developed and applied to a lot of sites in the world to cope with the global warming and $CO_2$ emission problem. This paper presents the result of study on the economic evaluation with super-micro fuel cell (SMFC) cogeneration system by varying the floor area ($132m^2{\sim}331m^2$) of the house, whose system capacity ranges from 0.10 kWe to 0.50 kWe. The electricity demand, heat demand, saved energy cost, and the simple pay-back period have been simulated for the various capacities of fuel cell cogeneration system. As a result, this study suggests the fuel cell system’s capacity decision strategy for a given house area. Contrary to conventional design assumptions, the smaller capacity fuel cell cogeneration system is appropriate for the house of large floor area to defense the progressive electricity tax, and the larger capacity fuel cell cogeneration system is appropriate for the house of small floor area to sell the electricity.

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주택면적의 변화에 따른 가정용 초소형 연료전지 코제너레이션 시스템의 경제성 분석에 관한 연구 (A Study on the Economic Evaluation with Super-Micro Fuel Cell Home Cogeneration System by Varying the Floor Area of House)

  • 노철우;김민수
    • 한국신재생에너지학회:학술대회논문집
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    • pp.25-28
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    • 2008
  • The fuel cell system is environment-friendly and energy efficient system. Especially, the fuel cell cogeneration systems providing heat and electricity to buildings have been developed and applied to a lot of sites in the world to cope with the global warming and $CO_2$ emission problem. This paper presents the result of study on the economic evaluation with super-micro fuel cell (SMFC) cogeneration system by varying the floor area ($132m^2{\sim}331m^2$) of the house, whose system capacity ranges from 0.10 kWe to 0.50 kWe. The electricity demand, heat demand, saved energy cost, and the simple pay-back period have been simulated for the various capacities of fuel cell cogeneration system. As a result, this study suggests the fuel cell system's capacity decision strategy for a given house area. Contrary to conventional design assumptions, the smaller capacity fuel cell cogeneration system is appropriate for the house of large floor area to defense the progressive electricity tax, and the larger capacity fuel cell cogeneration system is appropriate for the house of small floor area to sell the electricity.

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해저열수광상 기술.경제성평가 모델 개발 (Development of Technical and Economic Evaluation Model for Seafloor Massive Sulfide Deposits)

  • 박세헌;박성욱;권석재
    • Ocean and Polar Research
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    • v.28 no.2
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    • pp.187-199
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    • 2006
  • The Kuroko-type seafloor massive sulfide deposits found in the western Pacific have been considered to have potentials for economic recovery of Au, Ag, Cu, Zn, and Pb. In this study, a preliminary model was developed for the technical and economic evaluation of them. The FRSC site on Lau Basin in the Tonga EEZ was selected as a target. In this study, no construction In for the metallurgical processing subsystem was accounted for. Instead, it was assumed to sell the Cu, Zn, and Pb concentrates to the existing sulfide customer smelter. The low total investment costs for the development make the venture very attractive. However, the result of the economic feasibility evaluation is still less attractive with the mean metal yield of the Kuroko on land. It is considered that commercial mining may be plausible if the richer metal yields are applied to the development. Quantitative information for metal yield is necessary for a more accurate evaluation. However, the important resource potential information regarding the amount of ore body, the inside structure, and the metal yields have not yet been clarified sufficiently. h addition, the flotation of ore body using seawater has not been tested yet. It is necessary to solve these problems through the experimental R&D and a survey.

FPL45[W]램프, 안정키의 전력수요관리를 위한 경제성 평가 연구 (A Study on Economic Evaluation of FPL 45[W] Lamp and Ballast to Demand Side Management)

  • 임상국;조현경;김재철
    • 조명전기설비학회논문지
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    • v.23 no.4
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    • pp.101-107
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    • 2009
  • 기존의 조명기기 효율향상은 장려금 지원과 에너지절약 정보제공 등의 정부 지원제도로 인해 지속적으로 개선되었다. 그러나 현재 조명기기의 사용 패턴은 사용자의 취향이 고급화, 다양화됨에 따라 더 높은 조도와 간접조명이 더욱 확대되고 있다. 본 논문은 이와 같은 변화에 맞추어 점점 사용이 늘고 있는 FPL55[W]램프 안정기를 대체할 수 있는 FPL45[W]램프 안정기의 경제성평가 및 시뮬레이션을 통해 전력수요관리를 위한 제도적 도입방안을 검토하고자 하였다.

국내 광생물학적 수소생산의 경제성 평가 (Economic Evaluation of Domestic Photobiological Hydrogen Production)

  • 김봉진;김종욱
    • 한국수소및신에너지학회논문집
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    • v.19 no.4
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    • pp.322-330
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    • 2008
  • This paper deals with an economic evaluation of domestic photobiological hydrogen production. We evaluate the economic feasibility of domestic photobiological hydrogen production utilizing green algae and cyanobacteria. In addition, we make some sensitivity analysis of hydrogen production prices by changing the values of input factors such as the price of a photo-bioreactor and the value of solar to hydrogen efficiency. The estimated hydrogen production price of the two-step indirect biophotolysis was 12,099won/kg$H_2$. It is expected that the hydrogen production price by the two-step indirect biophotolysis can be reduced to 2,143won/kg$H_2$ if the solar to hydrogen efficiency is increased to 10% and the price of a photo-bioreactor is decreased to $25/$m^2$. The two-step indirect biophotolysis is evaluated as uneconomical at this time, and we need to enhance the solar to hydrogen efficiency and to reduce the prices of the photo-bioreactor and system facilities.

태양열 온실 난방에 대한 최척 집열 면적과 경제성 평가 (Optimum Collector Area and Economic Evaluation for the Greenhouse Heating)

  • 박이동;김규인
    • 태양에너지
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    • v.2 no.1
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    • pp.49-58
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    • 1982
  • Aim of this study was to obtain the heating performance and the economic evaluation on solar heating system for greenhouse which area of floor was $90m^2$. For heating performance effective solar energy for the greenhouse was compared with overall heating loads including coefficient of heat transfer and conduction. And the economic evaluation solar heating system was evaluated by comparison its initial investiment costing with oil saving cost. Initial investiment costing included collector cost, storage cost, piping cost, control system cost and miscellaneous costs which included pumps, motors etc. The contents of this study included the survey of climate conditions for solar heating, long-term collector performance and optimum collector area of solar heating system in existing greenhouse. The results are follows: 1. Average horizontal radiation during winter was $2,434Kcal/m^2$ day which was the highest value in this country, so the climate conditions of Suwon was suitable for solar heating. 2. Resulting calculation of the optimum collector area was $30m^2$ and the solar energy accounted for 30% of the overall heating load. 3. The capacity of storage tank required 60 liter per unit area ($m^2$) of solar collector.

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