• Title/Summary/Keyword: Combined Cycle Power Plant

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Improvement of 3D Design Process in the Combined Cycle Power Plant Using Business Process Reengineering (복합화력 발전플랜트에서 업무재설계기법을 이용한 3차원설계의 개선방안)

  • Choi, Hong-Yeol;Moon, Seung-Jae
    • Plant Journal
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    • v.8 no.3
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    • pp.55-63
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    • 2012
  • This study aims to suggest the improved business process by analyzing the current design process on work flow of the 3D design of power plant, drawing a problems and setting the improving direction through the integration method of the business process reengineering(BPR). In order to realize the improved business process, the integrated design performance system focused on the 3D design was established and accordingly the study analyzed cases of project performances through the integration system and drew the improved effects quantitatively. In the result of the project performance applied with the 3D design integration system, it showed 20.4% design cost saving effect for appropriate rated cost and the integration of design information from each design parts, sub contracters and vendors reduced overlapped works and improved the consistency of repeated design alteration.

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A Performance prediction of Gas Turbine using syngas fuel in IGCC (가스화복합발전에서 Syngas 연료를 사용하는 가스터빈의 성능예측)

  • Seo, Seok-Bin;Kim, Jong-Jin;Chung, Jae-Hwa;Ahn, Dal-Hong
    • Proceedings of the KSME Conference
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    • 2001.11b
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    • pp.878-884
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    • 2001
  • IGCC(Integrated Gasification Combined Cycle) power plant are becoming more attractive because of fuel flexibility and low emission. In this study, performances are evaluated when the low caloric value syngas fuels producted in gasification process is used a gas turbine originally designed naturel gas fuel. Using GateCycle computational thermal analysis model, performances of GE 7FA gas turbine are predicted for using four types of syngas. Also, off design performance is presented for firing syngas fuel in the gas turbine.

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Examination on High Vibration of Recirculation System for Feed Water Piping in Combined Cycle Power Plant (복합 발전소 주급수 재순환 배관계의 고진동 현상 및 대책)

  • Kim, Yeon-Whan;Kim, Jae-Won;Park, Hyun-Gu
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2011.04a
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    • pp.648-654
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    • 2011
  • The feed-water piping system constitutes a complex flow impedance network incorporating dynamic transfer characteristics which will amplify some pulsation frequencies. Understanding pressure pulsation waves for the feed-water recirculation piping system with cavitation problem of flow control valve is very important to prevent acoustic resonance. Feed water recirculation piping system is excited by potential sources of the shock pulse waves by cavitation of flow control valve. The pulsation becomes the source of structural vibration at the piping system. If it coincides with the natural frequency of the pipe system, excessive vibration results. High-level vibration due to the pressure pulsation affects the reliability of the plant piping system. This paper discusses the piping vibration due to the effect of shock pulsation by the cavitation of the flow control valves for the recirculation piping of feed-water pump system in combined cycle power plants.

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Pressuremeter Test in YULCHON Combined Cycle Power Plant (율촌 복합화력발전소 공내 재하 시험)

  • Lee, Yong-Gil;Park, Kyung-Ho
    • Journal of the Korean GEO-environmental Society
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    • v.2 no.1
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    • pp.5-13
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    • 2001
  • The purpose of this paper is to present the pressuremeter test result and analysis for Yulchon Combined Cycle Power Plant(CCPP) site. The CCPP site is old backfill area with the hillcut materials obtained from the borrow sources near the mountains. The geology of this area consists of 6-layers from the ground level such as hillcut material, dredged clay fill, silty sand, original marine clay, weathered rock, soft rock, etc.. The pressuremeter test has been carried out with three different probe, in size and membrane type for all layers except the clay layers. The cone penetration test has been also carried out to collaborate with the pressuremeter test in the hillcut material layer.

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Improvement of Feedwater Control System for Combined Cycle Power plant (복합화력발전소의 급수제어시스템 개선)

  • Park, Doo-Yong;Kim, Ho-Yol
    • Proceedings of the KIEE Conference
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    • 2006.07d
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    • pp.1871-1872
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    • 2006
  • 발전소를 운영함에 있어 보일러 제어시스템에는 수 많은 제어루프가 있으며, 이들 중에서 급수제어는 발전소 보일러제어 시점에서 매우 중요한 역할을 한다. 본 논문은 필리핀 일리한 복합발전소의 시운전 당시부터 고질적인 급수제어 불안정에 대해 원인과 분석을 통하여 근본적인 원인을 찾아내고 해결하였으며, 복잡한 제어로직을 해독하고 개선하여 원활한 제어특성을 갖도록 하여 발전소 운전에 안정성과 신뢰성을 확보한 내용을 기술하였다.

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Development of System Dynamics Model and Integrated Tool for Safety Culture Diagnosis of a Combined-Cycle Power Plant (복합발전 플랜트 안전문화 진단을 위한 시스템 다이내믹스 모델링 및 통합도구 개발 연구)

  • Choi, Jaewoo;Um, Sungin;Hong, Inki
    • Journal of the Korean Institute of Gas
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    • v.21 no.3
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    • pp.70-76
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    • 2017
  • Although various methods have been tried to measure the safety culture of firms, they are limited to derive the qualitative analysis results according to the subjective criteria that are not formalized according to the evaluation method. We developed a questionnaire that can be applied to a combined power plant, quantified the evaluation results using the system dynamics model based on the results, and conducted simulation through various scenarios. And to present the criteria for safety cultural policy.