• 제목/요약/키워드: thermal power plant

검색결과 1,086건 처리시간 0.035초

플랜트 동특성 해석용 소프트웨어 개발 및 초임계압 관류형 보일러에의 적용 (Development of Dynamic Simulation Software for Power Plant and its Application to Once-Through Boiler)

  • 이기현;이동수;조창호
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2000년도 추계학술대회논문집B
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    • pp.656-661
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    • 2000
  • In the recent trend of electric power supply market, a variable pressure operation supercritical once-through steam generator is highlighted as a thermal power plant for cycling load because of its superiority in load regulation. Almost all thermal power plants of the future are expected to be variable pressure operation supercritical once-through units. APESS(Advanced Plant Engineering & Simulation System) is a dynamic simulation software for power plant which is under being developed by Korea Heavy Industries & Construction Co., Ltd. This paper present the introduction of APESS and the result of simulation for variable pressure operation supercritical once-through steam generator.

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발전용 미분탄 연소 보일러 화염감시장치의 현장적용에 관한 연구 (The study of plant application at flame management system with flame monitoring for pulverized coal firing boiler of thermal power plant)

  • 백승엽;김승민
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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    • pp.535-537
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    • 2004
  • The flame image processing and it's analysis system has been developed for optimal coal firing of thermal power plant, especially for reducing NOx and safe operations. We aimed at gaining the relationship between burner flame image, emissions of NOx and LOI(Loss on ignition) in furnace by utilizing the flame image processing methods. And the relationship determines quantitatively the conditions of combustion on the individual burners. The test was conducted on Samchonpo thermal power plant #4 unit(560MW) of KOSEP which has 24 burners. The system simplified the burner adjustment works in accordance with the real time trending of flame behavior like NOx profiles and unburned carbon profiles for individual burners. But, This kind of conventional method increases the cost as the number of burner are increased. Also there is a difficulty to measure exhausted gas of each burner because of measurement errors. This paper intends to propose the useful "Flame Monitoring System" that can find Low NOX and LOI at the upper furnace and to compare with the conventional System.

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Optimal maintenance scheduling of pumps in thermal power stations through reliability analysis based on few data

  • Nakamura, Masatoshi;Kumarawadu, Priyantha;Yoshida, Akinori;Hatazaki, Hironori
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1996년도 Proceedings of the Korea Automatic Control Conference, 11th (KACC); Pohang, Korea; 24-26 Oct. 1996
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    • pp.271-274
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    • 1996
  • In this paper we made a reliability analysis of power system pumps by using the dimensional reduction method which over comes the problem due to unavailability of enpugh data in the actual systems under many different operational environments. Hence a resonable method was proposed to determine the optimum maintenance interval of given pump in thermal power stations. This analysis was based on an actual data set of pumps for over ten years in thermal power stations belonged to Kyushu Electric Power Company, Japan.

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Detection of Thermal Effluent Discharged from Nuclear Power Plant Using Airborne MSS and Landsat ETM+

  • Han, Joung-Gyu;Chi, Kwang-Hoon;Yeon, Young-Kwang
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.323-329
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    • 2002
  • The thermal effluent discharged from nuclear power plants can affect the offshore ecosystem change. The ability of measuring sea surface temperature in high resolution with Airborne MSS thermal spectral band(8.5 $\mu$m ~ 12.5 $\mu$m) and Landsat ETM+(10.4$\mu$m ~ 12.5 $\mu$m) gives us an information of spread range of thermal effluent. This information can be used as one of major factors fur analyzing the impact of the fish farm damage around the nuclear power plants. Every season from November 1999, this research has been conducted to investigate the extent of diffusion of thermal effluent discharged from KoRi, UlJin and WolSung Nuclear Power Plant located at the coastline of the East Sea of Korea.

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3차원 모델을 활용한 발전설비 교육컨텐츠 개발 (Education Contents Development that Use Thermoelectric Power Plant Generation Facility Third Dimensional Model)

  • 김석복;백남호;손광식;김주석;문승재;이재헌
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2008년도 춘계학술대회논문집
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    • pp.362-368
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    • 2008
  • The purpose of this is providing employees who take charge of operation and maintenance at power plant with education contents that can be used for self-studying and on the job training through their computers. We developed the education contents for making actually application possible using this piping and instrument diagram(P&ID), operation and maintenance procedure, unit specification and material of 500MW thermal power plant those include unit equipment 3-dimension animation, character and narration performance considering making teaching plan, flexibility, extension, reuse, maintenance and focusing on user. Specially, we developed the flash type education contents about power plant operation based on the plant 3-dimension animation and the spot real picture concerned about new generation trend for power plant incoming employees actual knowledge. in addition, this contents apparently contributed to improve the level of employees technical power as distributed to employees.

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발전소 MBC(Mill & Burner Control) 로직 분석 (Analysis of mill & burner control at thermal power plant)

  • 신만수;김병철;최인규
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.1662_1663
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    • 2009
  • There are generator/turbine/boiler control system in the thermal power plant. By the way, the manufacturers are different each other in many cases. Therefore there were many difficulties in interface and maintenance of power plant. So, we have been developing the integration of all control system in a single manufacturer. Mill & burner control is analyzed in this paper.

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화력전소용 버너관리 시스템 구성과 하드웨어 설명 (The Integration of Domestic Burner Management System for Thermal Power Plant and Hardware Explanation)

  • 신만수;김병철
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 합동 추계학술대회 논문집 정보 및 제어부문
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    • pp.264-267
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    • 2001
  • In this paper, we are trying to think over the integration of domestic burner management system for thermal power plant. The detailed contents are the power plant system overview and the integration of system and the hardware explanation and changing the burner management system in the local equipments.

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Dynamic Model for Ocean Thermal Energy Conversion Plant with Working Fluid of Binary Mixtures

  • Nakamura, Masatoshi;Zhang, Yong;Bai, Ou;Ikegami, Yasuyuki
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.2304-2308
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    • 2003
  • Ocean thermal energy conversion (OTEC) is an effective method of power generation, which has a small impact on the environment and can be utilized semi-permanently. This paper describes a dynamic model for a pilot OTEC plant built by the Institute of Ocean Energy, Saga University, Japan. This plant is based on Uehara cycle, in which binary mixtures of ammonia and water is used as the working fluid. Some simulation results attained by this model and the analysis of the results are presented. The developed computer simulation can be used to actual practice effectively, such as stable control in a steady operation, optimal determination of the plant specifications for a higher thermal efficiency and evaluation of the economic prospects and off-line training for the operators of OTEC plant.

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루프디자인에 따른 배관시스템의 열응력에 관한 연구 (A Study on Thermal Stress of Power Piping due to Loop Design)

  • 이정현;박지성
    • 한국생산제조학회지
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    • 제23권5호
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    • pp.450-455
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    • 2014
  • Domestic power plants have consistently been developed over the years in industrially developed nations with high standards of living. Considering the power plant development strategy, design efficiency is of upmost importance. Therefore, an improper design directly affects the power plant's risk management plan and the potential risks of the piping system. Therefore, in this study, research is intended to be carried out to allow efficient power plant operation, through optimization of the design of the piping system. The purpose of the study is to confirm economic feasibility by changing the piping loop design, expanding the length of pipe loops, and to investigate the thermal stress influence on the piping system through simulations of systems similar in condition to those currently used in existing plants in Korea.

혼소율을 고려한 화력 발전소의 CO2 대기배출량 계산 (Calculation of CO2 Emission for Fossil-Fired Thermal Power Plant considering Coal-Oil Mix Rate)

  • 이상중;김순기
    • 조명전기설비학회논문지
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    • 제24권10호
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    • pp.67-72
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    • 2010
  • G8 summit meeting held in July 2008 decided to set up a long-term goal, by 2050, reducing the world greenhouse emissions by half of those emitted in 1990. In November 2009, the Government announced to reduce the national $CO_2$ emission by 30[%] of BAU by 2020. Electric power industries in Korea produce most of their electricity by burning fossil fuels, and emit approximately 28[%] of national $CO_2$ emissions. Monitoring the $CO_2$ emissions. Monitoring the $CO_2$ emission of electric power plants is very important. This paper presents a method to calculate the hourly $CO_2$ emission for a thermal power plant burning mixture of coal and oil using the performance test data and coal-oil mix rate. An example of $CO_2$ emission calculation is also demonstrated.