• Title/Summary/Keyword: Electric power industry

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Analysis of Effect of Designated New Technology of Electric Power on the Electrical Construction Industries (전력신기술 제도가 전기공사업계에 미치는 영향 분석)

  • Hwang, Min-Soo;Jeon, Tae-Hyun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.26 no.2
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    • pp.106-113
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    • 2012
  • Recently laws have been enacted to build and promote the use of smart grid. There are also increasing demands for the compliance with international trade agreements and the related international standards. Due to these rapid changes in electric power industry and the market expansion, importances of new technologies and processes have been being increased. To reflect these international trends, the government have carried out the designation of new technology for electric power industry to promote domestic industries and national competitiveness by inspiring technology developments in individual or private industry sectors. In this paper analysis of the current status of the designation of the new technology of electric power has been presented including its problem and effect on the related industries. The analysis is expected to be utilized to enhance sound development and to vitalize the electrical new technology regulation.

Heat-Electric Power Ratio Optimization To Maximize Profit of a Cogeneration Power Plant (열병합 발전기 수익 극대화를 위한 열전비 최적화)

  • Kim, Gun-Hoe;Lee, Jae-Heon;Moon, Seung-Jae;Chang, Taek-Soon
    • 한국전산유체공학회:학술대회논문집
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    • 2008.03b
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    • pp.381-384
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    • 2008
  • This paper presents an operational technique to maximize profit of a cogeneration power plant. To minimize errors in a loss and gain analysis of a cogeneration power plant, the energy sale profit in the cost-based-pool electric power trade market, the heat sale profit, and the supplementary fund profit for electric power industry are taken into consideration. The objective is to optimize the heat-electric power ratio to maximize profit of a cogeneration power plant. Furthermore, the constrained bidding technique to optimize heat-electric power ratiocan be obtained. Profits from of a cogeneration power plant are composed of three categories, such as the energy sale profit in the cost-based-pool electric power trade market, the heat sale profit, and the supplementary fund profit for electric power industry. Profits of a cogeneration power plant are varied enormously by the operation modes. The profits are mainly determined by the amount of constrained heat generation in each trading time. And the three profit categories arecoupled tightly via the heat-electric power ratio. The result of this case study can be used as a reference to a cogeneration power plant under the power trading system considered in this case.

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Design of a Class 1 Safety Valve

  • Lee, Do-Hwan;Park, Sung-Keun;Hong, Sung-Yull;Kim, Yang-Seok;Kang, Sung-Ku
    • Proceedings of the Korean Nuclear Society Conference
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    • 2005.05a
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    • pp.851-852
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    • 2005
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Development of Intelligent Switchgear Monitoring System based on Smartphone (스마트폰 기반의 지능형 수배전반 모니터링 시스템 구현)

  • Jung, Hae-Kyung;Jeon, Gam-Pyo;Jeong, Do-Un
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.05a
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    • pp.378-379
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    • 2012
  • Nowadays, great energy consumption in advanced electrical industry has called up the great y efficiency. Electric power IT industry such as intelligent electric power system is receiving great attention and being marked up as a new growth engine. Through Intelligent electric power system, the electric power supply can be balance optimized according to demand, giving huge cost savings advantage for energy imports, infrastructure construction and operation. Nevertheless, the intelligent system promotes better reliability in power supply. Manual electric power management using man power appears to be non-practical. Real time electric power management on all facilities and equipment can be done through an intelligent electric power system, any accident break out issue can be easily recorded and recognized. In this paper, a fully integrated intelligent switchgear electric management system is developed to monitor and remote control the electrical switch based on smart phone. The proposed system is superior than the existing switchgear management system's weakness and can sharply improve effectiveness and stability with low cost. In future, the proposed system is expected to be greatly contributed to the advancement of the IT industry in electric power management.

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The Characteristics of the Noise of Electric Home Appliances (가전제품의 소음 특성)

  • Gu, Jin-Hoi;Kang, Dae-Joon;Lee, J.W.;Kim, T.S.;Kwon, H.J.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.05a
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    • pp.332-339
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    • 2007
  • As the economy has grown and the main industry in Korea has been changed from secondary industry to tertiary industry, the importance of indoor environment has been a matter of common concern, in which one of the main concerns is to improve the indoor acoustic conditions. However, even though this is required more than before, there are no measures to protect the human being from the noise of electric home appliances. This is owing to the absence of the data about sound power level of electric home appliances. So, we investigate the sound power level of them and analyze the acoustical characteristics of each one. First, we tried to investigate the sound power measurement method of each electric home appliance. After it we test the sound power level of them. From the survey, we can know that the vacuum cleaner is the most noisy electric home appliance, and the refrigerator is the least noisy one. The noise of a range hood is distributed over a wide range frequency. Lastly, we intented to propose the proper method measuring sound power level on each electric home appliance.

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Implementation of Real-time Power Facility Monitoring System Using WSN (무선 센서 네트워크 기술을 이용한 전력 설비 실시간 감시 시스템 구현)

  • Kim, Young-Il;Cho, Seon-Ku;Yi, Bong-Jae;Song, Jae-Ju;Shin, Jin-Ho
    • Proceedings of the KIEE Conference
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    • 2006.10c
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    • pp.488-490
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    • 2006
  • In the electric power industry, It is important that the supply of energy must always be guaranteed. To satisfy these requirements, various forms of technologies are needed, such as RFID tag, reader, sensor network, middleware and so on. WSN (Wireless Sensor Network) technologies of the electric power industry are in the early stage and there is no clear guideline for developing electric facility management system using WSN. Relevant experience is limited, the challenge will be to derive requirement from business practice and to determine whether it is possible or not. To explore this issue, we focus on researching and field test of prototype system in Korea Electric Power Corporation (KEPCO). In this paper we describe requirement from power industry. And we introduce design and implementation of the power facility monitoring system.

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Evaluation of R&D Projects in Electric Power Industry with Efficiency and Effectiveness (전력산업 R&D 프로젝트의 효율성 및 효과성 평가)

  • Park, Sung-Min;Kim, Heon;Baek, Dong-Hyun
    • IE interfaces
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    • v.22 no.3
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    • pp.192-204
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    • 2009
  • Based on the characteristics of 'Korean electric power industry R&D programs', this study proposes a new performance evaluation framework where electric power industry related R&D projects are scrutinized. The abovementioned R&D programs have their own goals and especially they emphasize the effectiveness as well as the efficiency of each subordinate R&D project. Hence, in this framework, a performance evaluation procedure is established and then a mathematical model is developed according to the procedure. The model calculates performance evaluation indices for a set of R&D projects integrating the effectiveness with the efficiency of each R&D project. In a case study with an empirical dataset, statistical significance is tested on the integrated performance evaluation indices of R&D projects regarding organizational types and program categories considered.

Computation of Super High-Resolution Global Ocean Model using Earth Simulator

  • Kim, Dong-Hoon;Norikazu Nakashiki;Yoshikatsu Yoshida;Takaki Tsubono;Frank O. Bryan;Richard D.Smith;Mathew E. Maltrud;Matthew W. Hecht;Julie L. McClean
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 2003.08a
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    • pp.164-169
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    • 2003
  • The need fur higher grid resolution in climate models is often discussed (e.g. McAvaney et al.,2001) because a number of important oceanic processes are not resolved by the current generation of coupled models, e.g., boundary currents, mesoscale eddy fluxes, sill through flows. McClean et al., (1997) and Bryan and Smith (1998) have compared simulated mesoscale variability in simulations at several eddy-resolving resolutions to TOPEX/Poseidon and similar data. (omitted)

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