• Title/Summary/Keyword: Plant Projects

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A Study on Design of Production System Using Multiple Characteristics Robust Design in Uncertain Environment (불확실한 환경에서의 다특성치 강건설계를 이용한 생산시스템 설계에 관한 연구)

  • 양광모;서장훈;박진홍;강경식
    • Proceedings of the Safety Management and Science Conference
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    • 2004.05a
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    • pp.61-65
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    • 2004
  • As technique that can contribute in quality improvement in design process to overcome shortcoming of traditional quality control, call design or development department quality control activity that is achieved to reduce gun damage shuddering at circle minimizing change or side effect of product performance as off-line quality control. This paper discuss optimal process design of investment projects expansion and replacement investment on each line or individual in the production. Generally optimal plant design has add to a few method by Subsidiary means with use a especial method. And then in this paper, a Robust design is presented, which may be effective to the processes appraisal or improvement. We propose that should make a optimal plant design model for reducing field failure rate to assign by real data on different factors in plant system. Using this model, robust design of taguchi method used in this comprehensive method for reducing field failure rate in plant system.

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HTGR PROJECTS IN CHINA

  • Wu, Zongxin;Yu, Suyuan
    • Nuclear Engineering and Technology
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    • v.39 no.2
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    • pp.103-110
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    • 2007
  • The High Temperature Gas-cooled Reactor (HTGR) possesses inherent safety features and is recognized as a representative advanced nuclear system for the future. Based on the success of the HTR-10, the long-time operation test and safety demonstration tests were carried out. The long-time operation test verifies that the operation procedure and control method are appropriate for the HTR-10 and the safety demonstration test shows that the HTR-10 possesses inherent safety features with a great margin. Meanwhile, two new projects have been recently launched to further develop HTGR technology. One is a prototype modular plant, denoted as HTR-PM, to demonstrate the commercial capability of the HTGR power plant. The HTR-PM is designed as $2{\times}250$ MWt, pebble bed core with a steam turbine generator that serves as an energy conversion system. The other is a gas turbine generator system coupled with the HTR-10, denoted as HTR-10GT, built to demonstrate the feasibility of the HTGR gas turbine technology. The gas turbine generator system is designed in a single shaft configuration supported by active magnetic bearings (AMB). The HTR-10GT project is now in the stage of engineering design and component fabrication. R&D on the helium turbocompressor, a key component, and the key technology of AMB are in progress.

Recent Progress in Lichen Research in Korea - from Taxonomic Study to Environmental Application

  • Hur, Jae-Seoun;Kang, Eui-Sung;Kim, Minjin;Oh, Soon-Ok;Kahng, Hyung-Yeel;Kim, Hyun-Woo;Jung, Jae-Sung;Koh, Young-Jin
    • The Plant Pathology Journal
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    • v.20 no.1
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    • pp.30-40
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    • 2004
  • Lichen is one of the most widely distributed eucaryotic organisms in the world. Lichen is the result of a symbiotic association between two unrelated organisms - a fungus and an alga (or cyanobacterium). In USA, Japan and European countries, there has been a resurgence of interest in lichens as source of novel, pharmacologically active molecules during the last 20 years. However, lichen researches in Korean lichens were mainly focused on investigation of Korean lichen flora and most of them were primitive and short-term based projects until 1990s. In this communication, general introduction of lichens was attempted to draw the attention of Korean researchers to Korean lichen bioresource. Research activities on Korean lichens during the past were also summarized. Recent progress in Korean lichen research is briefly discussed with emphasis of KoLRI (Korean Lichen Research Institute) activities and roles in national researches projects on bioresource development in Korea.

Cooperative Design Method for Building Projects (건축 프로젝트의 협력설계 방안)

  • Kim, Eun-Youn;Lee, Jae-Heon
    • Plant Journal
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    • v.7 no.4
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    • pp.67-76
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    • 2011
  • Two main features of the recent building project are the enlargement of the size and the technological complexity. Due to these features, the number or the size of organizations participating in building project is also increasing and the relationships between the organizations are becoming more interdependent than ever. Owing to these features, some delays or errors in the decision-making process in the phase of planning of a building project may influence many subjects related to the project. The most important factor for a successful project is to arbitrate confrontations and build cooperative relationships between parties who have different interests with one another in the project. Efforts were made to find out general features of building project and the features in the phase of planning in order to set a direction of this research. To solve problems in the phase of planning, the concept of 'cooperative design', which means that different features and interests of various organizations should be reflected from the phase of planning, was introduced. By introducing cooperative design in building projects, more rapid and objective decision-makings are possible.

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Ecological Restoration Planting Design Awareness Survey (생태복원 사업에서의 식재 설계에 관한 인식 조사)

  • Cho, Dong-gil
    • Journal of Environmental Science International
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    • v.31 no.7
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    • pp.579-592
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    • 2022
  • Much controversy has been generated over whether the ecological restoration project in Korea is faithful to the basic approach of ecological restoration compared to projects aimed at creating parks or green spaces. This study was aimed at understanding the level of awareness of practitioners in the planting design method, which is recognized as relatively important in landscape architecture and ecological restoration. The proficiency of practitioners in planting design techniques for ecological restoration projects was investigated and analyzed in seven areas: overall planting design awareness, plant species selection method, planting tree sizes, planting density, use of native species, vegetation climatic zone, soil environment, and weed control. There was no statistically significant difference between the group who thought they were experts in the field of ecological restoration and the group who thought they were experts in the field of parks and green spaces. Moreover, there was no statistically significant difference between the degree of work performance, that is, the group whose main industry was ecological restoration, the group that performed relatively more ecological restoration work, and the group that rarely performed it. Therefore, to apply desirable ecological restoration techniques in the future and to clearly differentiate between the approach in the field of parks and green spaces, the appropriate tree size or planting density selected in the ecological restoration planting design stage must be chosen. To this end, the awareness of expert groups must be improved and related laws, systems, and guidelines must be revised.

Penetration of Korean EPC Companies into International Market for Nuclear Power Plant (플랜트 EPC 기업의 해외 원자력 발전 프로젝트 진출방안)

  • Cho, Chan-Hyoung;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.5 no.3
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    • pp.66-73
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    • 2009
  • This study aims to develop a strategy for South Korean companies to penetrate into the global NPP(nuclear power plant) market with their strength as the sixth biggest nuclear power generator in the world. With 20 nuclear plants in commercial operation and 6 more in construction, South Korea has the best technology in construction and operation of NPP. Despite these capabilities as demonstrated on its domestic market, Korean companies' constraint to enter and play a key role in global NPP market would be the lack of experience in overseas NPP projects, original technologies, and diplomatic effectiveness. This study analyzes the competitiveness of Korean standardized nuclear power plant, construction management skills, construction technologies, manufacturing equipment and materials and operation skills. In this research the current status of existing NPP and the forecast of building NPP according to countries was analyzed in order to work out strategies with technology, cost-effectiveness, and diplomatic consideration.

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On the Analysis of Risk Management for a Utility Construction Work in Plant Projects (플랜트 유틸리티 시공에서 리스크 관리에 관한 연구)

  • Han, Ki-Don;Hur, Jin-Huek;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.6 no.1
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    • pp.64-70
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    • 2010
  • From 2000, the world plant market, especially plant developing business related to oil and gas, has been increasing. Domestic construction companies advance to overseas plant construction market actively, and proportioning to this, an importance of utility construction is increasing. However, the project becomes large and high-tech, and many companies experience difficulty of project management due to relatively high risk of overseas construction. In this study, we built the standard process with which domestic company can evaluate the risk of overseas plant utility construction. Primary factors for risk evaluation is derived, classification system is made out, primary factor is analyzed, and counter plan is suggested. And thorough management of risk is performed by risk management organization that manages the risks, risk control methods, reports and monitors through risk sheet and risk action log from the start of project to the end.

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A Standard Method for Progress Measurement in a Petrochemical Plant EPC Project (석유화학 플랜트 EPC 사업의 진도율 산정표준의 제안)

  • Cho, Hong-Yeon;Yoo, Hoseon
    • Plant Journal
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    • v.7 no.4
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    • pp.77-87
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    • 2011
  • In proportion to continuing growth of overseas plant market and the trend of its mega scale of the project, the importance of management is significantly emphasized for the successful execution of the project. And it is recognized that progress control is the most important management item amongst the others in the management. Progress control is importance of progress measurement for performance measurement and process control of project, but it is hardly obtainable securing the objectivity in the progress measurement since the progress measurement are being applied differently in accordance with the project conditions and the experience level of the person in charge for the progress control. This study has conducted as following to propose a standard method for progress measurement in a petrochemical plant protect. Domestic and overseas plant projects are investigated variously with the applied method of progress measurement, and the deduced problem of progress measurement. And then standard method for progress measurement of engineering, procurement, construction and commissioning has been proposed according to comparison and analysis of practices in domestic & overseas plant project, procedures for progress control in the globally reputed petrochemical client, company rules and recommendation of the expert in progress control.

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Technology Valuation Evaluation Model of Decision Making System using Income Approach for Commercialization in LNG Plant Construction (수익접근법을 활용한 LNG 플랜트공사의 의사결정지원시스템 기술가치 평가)

  • Park, Hwan Pyo;Han, Jae Goo;Chin, Kyung Ho
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.4
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    • pp.58-67
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    • 2014
  • The proportion of investment in national R&D projects in construction and transportation has been increasing continuously; in terms of the size of R&D projects, there are many medium- to large-sized projects of over KRW 10 billion. However, in spite of such continuous increase in R&D investments, there are many technologies developed but not commercialized, i.e., the quiescence of technology. Accordingly, it is necessary to link the R&D results to commercialization by expanding the scope of R&D projects. In this context, this study presented objective reference prices to be used in contracting/transacting technology and implementing commercialization strategy by conducting technology valuations against on-going research projects with earnings approach, and by estimating value of patented technology. Sum of free cash flow (business value) that can be generated during the life of the technology was estimated as KRW 512 million by reflecting a discount rate of 16.34% to convert it into the present value. In addition, the technology value was computed as KRW 227million by applying a technology factor of 44.39% to the above value. Based on the technology value estimated in this way, it is necessary to establish industrialization and commercialization strategy of the technology.

Key Performance Indicators of Building Project (건축 프로젝트의 경영성과지표 선정 연구)

  • Choi, Jae-Hwi;Sohn, Hyo-Won;Kim, Sun-Kuk
    • Journal of the Korea Institute of Building Construction
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    • v.11 no.1
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    • pp.61-72
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    • 2011
  • Management performance of a construction company can be the sum of management performance of each different project. Therefore, the measurement of management performance following construction projects is essential for securing the competitiveness of a company. However, most research has been related to the performance measurement of the construction industry and companies and little has been conducted on individual project's performance. In particular, building projects have various characteristics depending on construction orderer, type and commissioning entity but no performance indicators have been selected based on this classification. This study aims to select performance indicators for subdivided areas based on project characteristics as well as those which can be commonly used to measure management performance at construction and trial run stages of building projects. In the future, those indicators proposed in this study can be used for developing methodology to evaluate them and later applied to actual building projects to generate quantitative data. In addition, they are expected to be used as reference for selecting indicators to measure management performance of plant and civil engineering projects.