• 제목/요약/키워드: Economic evaluation

검색결과 529건 처리시간 0.098초

Method and Procedure for Economic Evaluation of Improvement Activities

  • Kono, Hirokazu;Ichikizaki, Osamu
    • Industrial Engineering and Management Systems
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    • v.14 no.2
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    • pp.122-128
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    • 2015
  • The purpose of this paper is to propose an appropriate evaluation scheme for improvement activities, based on a simple model comprising cash inflow by sales as well as variable and fixed cost expenditures. The paper distinguishes capacity surplus and capacity shortage situations, and examines economic benefits gained by yield increase improvement and capacity increase. The paper then proposes a basic rule of thumb for economic evaluation of improvement activities. The logic is simple but useful in practice, being conducive towards improvement activities under current economic conditions with uncertainties.

공공 웹 서비스의 경제성 평가에 관한 연구 (A Research on Economic Evaluation of Public Web Service)

  • 박정선
    • 한국전자거래학회지
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    • v.6 no.2
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    • pp.57-71
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    • 2001
  • This paper provides an economic evaluation model for public web services which are mainly operated by government agencies. Though there are various services, this paper focus on services for bottleneck problem solving and management information providing. This paper suggests quantitative and qualitative effects of public web services and evaluates them with I-NET users using e-mail surveys. This Paper mv provide a guideline for the future investment on public web services.

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기업의 업무 전산화에 대한 경제성 평가 방법 (A Procedure for Economic Evaluation of Computerization of Office Works in Business)

  • 박춘엽
    • Asia pacific journal of information systems
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    • v.3 no.2
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    • pp.74-92
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    • 1993
  • The purpose of this paper is to propose a procedure for economic evaluation of computerization of the office works in business. In particular, this paper is concerned with how to estimate elemental costs and benefits attributable to the computerization of the office work. This paper includes also how to integrate the elemental costs and benefits so that measures for economic evaluation may be obtained.

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의약품 경제성평가 지침의 주요 내용 (Guidelines for Economic Evaluation of Pharmaceuticals in Korea)

  • 배은영
    • Journal of Preventive Medicine and Public Health
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    • v.41 no.2
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    • pp.80-83
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    • 2008
  • An economic evaluation is required in order to apply to the Health Insurance Review and Assessment Service (HIRA) for a listing in the national drug formulary. To assist companies in preparing the necessary documents, HIRA published guidelines for the economic evaluation of pharmaceuticals in 2006. The guidelines are composed of two parts: guidance and explanatory notes. Each guideline reflects the best practice which meets both the theoretical consensus within the academic community and local situations, like data availability. To enhance the transparency of evaluation, guidelines emphasize the reproducibility of data and analysis result. That is, all evaluation processes are required to be described in enough detail to be replicated by reviewers. With growing experience and theoretical development in this area, HIRA guidelines will be revised periodically.

부하 평준화를 위한 변전소 설치 배터리 에너지 저장장치의 모델 및 경제성 평가에 관한 연구 (Modeling of Battery Energy Storage System at Substation for Load Leveling and Its Economic Evaluation)

  • 조성민;신희상;김재철
    • 전기학회논문지
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    • v.61 no.7
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    • pp.950-956
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    • 2012
  • As development of battery technologies, the installation of Battery Energy Storage System (BESS) increased. The BESS can be used for various purposes such like frequency response, load leveling, and fluctuation mitigation of renewable energy generators. In this paper, three state BESS model is proposed. the BESS model considering charge, discharge and keeping efficiency, and life cycle according to depth of discharge (DOD). Then, the benefit and cost of BESS installed at substation for load leveling are summarized. The economic evaluation of BESS is analyzed using net present values (NPV) analysis. In case study, the NPV analysis of NaS battery system is carried out using the proposed BESS model. Because the result of economic evaluation of BESS using nowadays cost data is not positive, the sensitivity analysis of BESS is conducted by changing the capital cost and energy cost.

국내 해상풍력발전단지의 경제성 분석 (Economic Evaluation of Offshore Wind Farm in Korea)

  • 민창기;허돈;박종근
    • 전기학회논문지
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    • v.63 no.9
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    • pp.1192-1198
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    • 2014
  • With an increase in the penetration of offshore wind farm, the need of an accurate economic evaluation of offshore wind farm has become crucial. This paper presents an economic evaluation method of offshore wind farm in Korea reflecting the cost of offshore wind farm infrastructure (offshore substation, submarine cable and foundation) in its cost model. Each cost of offshore substation, submarine cable, and foundation is represented as a function of installed capacity, distance to shore, and water level, respectively. We have applied the method to the case study of offshore in Jeju Island and analyzed the economics under various conditions. The results show that the distance to shore is of importance in economics of offshore wind farm.

일사량 데이터 분석을 통한 태양광발전 시스템 개발을 위한 경제성 평가 방법 (Economic Evaluation Method for Photovoltaic System Development using Insolation Data Analysis)

  • 이성훈;최형철;이동근;김진오
    • 조명전기설비학회논문지
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    • v.25 no.10
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    • pp.38-46
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    • 2011
  • Recently, interests in renewable energy have gradually increased. Of various renewable energy, Photovoltaic system has the properties affected by weather. This paper discusses the economic evaluation based on insolation data analysis. Real insolation data were obtained by radiation measurement device installed in projected photovoltaic system site during 20 months. Obtained real insolation data were standardized using clear day analysis. Standardized data are greater than obtained real insolation data and were used as parameters of RETScreen for the economic evaluation. In results, capacity(30[kW]) of soon cheon is shown the most B/C(1.20). Applied methods have effectively done to develop photovoltaic system.

Engineering and Economic Evaluation of Production of MgO Nanoparticles using a Physicochemical Method

  • Priatna, Deri;Nandiyanto, Asep Bayu Dani
    • International journal of advanced smart convergence
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    • v.8 no.4
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    • pp.26-33
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    • 2019
  • We conducted research to evaluate economically and engineering about the synthesis of Magnesium Oxide, MgO, nanoparticles using physicochemical methods. The method used was economic evaluation by calculating GPM, BEP, PBP, and CNPV. The other method used was engineering perspective. MgO nanoparticles were synthesized by reacting Mg(NO3)2 and NaOH with a mole ratio 1: 2. Mg(OH)2 formed was heated and calcined to remove water content and to oxidation to form MgO. An economic evaluation by calculating GPM and CNPV for the production of MgO nanoparticles on an industrial scale shows that the payback period (PBP) occur in the third year and profits increase each year. Tax variations show that the higher of tax, the lower profits received. When there was an increase of selling prices, the profit was greater. The variable cost used is the price of raw material. When there was an increased in the variable cost price, the payback period was longer and the profits was reduced. The benefit of this research is knowing the industrial production of MgO nanoparticles is beneficial. The function of MgO nanoparticles is a material for the manufacture of ceramics and can be used as an antimicrobial in the water filtration process.

한국제조기업 품질관리활동의 동적 분석 (An Dynamic Analysis of Quality Control in Korean Manufacturing Industry)

  • 이순룡;이광재
    • 산업경영시스템학회지
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    • v.10 no.16
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    • pp.183-195
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    • 1987
  • The effectiveness of quality control is contingent to adaptability to the present circumstance. The objectives of this study are to provide empirical data to carry out qualify control effectively. To accomplish this purpose, an empirical study was made by questionaire (mailing survey method, Feb. to Mar. in 1987). The sample is the 167 companies in Korean manufacturing industry. The main findings out of the analysis are as follows the stage of quality control is concentrated in appraisal phase, the company standard is equiped gradually in non-KS marked company and the need of economic evaluation about quality control is increased gradually. With a view to analysing of relationship between quality control and it's effect factors (company standard, KS mark, computer based information system), the methods of $\chi$$^2$ test are used. The company standard have a significant difference in top manager's altitude to duality control, operation stage of quality control. operation scope of qualify control and quality budgeting system but is insignificant with economic evaluation about duality control. Otherwise, KS mark is insignificant with the equality control activity except for operation scope. The quality information system based in computer have a significant difference in operation stage, operation scope and economic evaluation. Therefor, for the purpose of attaining effectiveness of quality control through the economic evaluation about quality control, the company standard and computer based duality information system must be utilized in quality control activity.

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하수처리수 이용 열원시스템의 경제성 평가 (Economic Evaluation on Energy System Using Treated Sewage Water)

  • 이철구
    • 한국지열·수열에너지학회논문집
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    • v.13 no.3
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    • pp.16-22
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    • 2017
  • It has become important for unutilized energy to be used for air conditioning of building. Economic evaluation on energy system by using treated sewage water as heat source, which is one of unutilized energy, was performed. The floor area of the subject building and the distance between heat source equipment and sewage treatment plant was assumed $30,000m^2$ and 200m. Absorption chiller-heater system was used for comparing to the energy efficient system, and payback period method was applied to carry out economic evaluation. Although the operating cost of this system is reduced compared to general heat source system, the ratio is not meaningful compared to the initial investment cost increase, and payback period was calculated to be about 36.1 years. However, when calculated based on the 2014 rate of electricity and city gas, it will be greatly reduced to 3.1 years. International commodity prices are constantly changing, and therefore national policy on the spread of unutilized energy should be maintained.