• NEWSLETTER 전기공업
• /
• no.95-21 s.142
• /
• pp.19-49
• /
• 1995

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2000.05a
• /
• pp.31-36
• /
• 2000

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
• /
• v.43 no.8
• /
• pp.42-48
• /
• 2014

• Journal of Energy Engineering
• /
• v.10 no.1
• /
• pp.33-39
• /
• 2001

석탄화력발전소에 정착되는 고속분립체 이송용 곡관의 내마모성 향상에 관한 수치해석 및 실험적 연구를 수행하였다. 22.5$^{\circ}$와 90$^{\circ}$ 곡관을 모델로 하여, 분립체에 의한 곡관의 마모를 감소시키기 위해 유동방향이 전환되는 부분에 와류장이 형성되도록 곡관의 단면형상을 변화시켰다. 삼차원, 난류유동장의 지배방정식을 유한체적법으로 이산화시키고, SIMPLE 알고리즘을 이용하여 해를 구하였다. 수치해석을 통해 마모감소를 위한 새로운 형상의 곡관을 설계하였다. 새로운 형상의 곡관을 제작, 운전중인 국내 화력발전소에 장착하여 마모실험을 수행하였으며 내마모성이 매우 향상되었음을 알 수 있었다.

• Journal of the Korea Society for Simulation
• /
• v.19 no.1
• /
• pp.41-51
• /
• 2010

A control system has been being developed by korean engineers for 500MW korean standard type fossil power plant with the advent of retrofit of old control system. Simulators have been used for digital I&C system pre-tests and validation tests in nuclear power plants. In this paper, the power plant simulator for control system V&V was developed in order to verify the developed control system prior to application to a power plant. The control models were developed using plant control system data, translator programs, and vendor manuals. The developed simulator was verified by steady-state test, load swing test, transient test and so on.

• The Journal of the Korea Contents Association
• /
• v.21 no.3
• /
• pp.567-575
• /
• 2021

Residents in Dangjin, South Chungcheong Province, in which large-scale emissions facilities such as coal-fired power plants and steel mills are concentrated, are very much concerned about their health despite the local government's aggressive efforts to improve air quality and reduce greenhouse gases. To understand the impact of coal-fired power plants and external factors on local air pollution, the origins of local pollutants were investigated using stable carbon isotopes that are generally used as tracers of the provenance of fine or ultrafine dust. The origins of the pollutants were analyzed with the data library, built using the seasonally measured data for the two separate locations selected considering the distance from the coal-fired power plant and the analysis of previous studies, and with the back trajectory analysis. As a result of analyzing stable isotope ratios, the tendency of high concentration was found in the order of winter > spring > fall > summer. According to the data matching with the library, the mobile pollutants and open-air incineration had a relatively higher impact on the local air pollution. It is believed that this study, as a pilot study, should focus on securing the reliability of the study results through continuous monitoring and data accumulation.

• Proceedings of the Korea Concrete Institute Conference
• /
• 2009.05a
• /
• pp.391-392
• /
• 2009

This research presents early characters of waste recycling shotcerete with a combination of Coal-Ash are used by Yong-Dong thermoelectric power plant and Dong-Hae thermoelectric power plant. Several tests were conducted in this research.

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2003.11a
• /
• pp.467-468
• /
• 2003

국내 최초 800MW급 석탄화력발전소로서 국제환경 규제 기준치를 능가하는 최첨단 환경 설비를 모두 갖춘 최신 발전소로 건설되고 있는 한국남동발전(주) 영흥화력 1,2호기가 2004년 7월과 12월에 완공을 목표로 보일러 및 습식배연탈항설비의 공사가 진행되고 있다. 이에 당사는 본 공사의 주계약자로서 국내 최대 규모의 최첨단 발전소 건설을 위해 최선의 노력을 경주하고 있다. 영흥화력 1,2호기 습식배연탈황설비는 800MW 2호기로 구성되어 있으며 용량 및 시스템 배열 면에 있어서 기존의 설비들과는 상이하므로 시스템 성능 예측 및 평가와 그에 파생되는 설계개선을 위한 새로운 접근방법이 필요하다. (중략)

• Proceedings of the Korea Society for Energy Engineering kosee Conference
• /
• 2000.11a
• /
• pp.39-44
• /
• 2000

석탄가스화 복합발전(IGCC; Integrated Gasification Combined Cycle) 은 석탄을 연료로 사용하면서 NOx, SOx 등 오염물 발생량이 적고 가스터빈을 채용한 복합발전 방식으로 효율이 높은 청정에너지 발전방식이다. 특히 우리나라와 같이 전력생산 분야에서 석탄화력의 비중이 높은('99년 6월 현재 27.8%(한전통계자료)) 우리나라에서 급격히 강화되는 석탄화력발전소에 대한 오염물 배출량 제한에 대처하기 위해 기존 석탄화력의 대안으로써 석탄가스화 복합발전이 부각되고 있다. 본 연구에서 국내에 IGCC 상용설비 도입에 대비하여 참조플랜트로서 Texaco 가스화공정을 채용한 2 case의 IGCC 시스템 연구를 수행하였다.(중략)

• Economic and Environmental Geology
• /
• v.52 no.2
• /
• pp.141-158
• /
• 2019

The quantity of heavy metals in agricultural surface and subsurface soils around coal-fired power plants located in Samcheonpo and Hadong, Gyeongnam Province, were determined. The analytical results for 48 and 61 soils in Samcheonpo and Hadong, respectively, showed that the concentrations of Cu, Hg, Ni, Pb, and Zn were below the warning criteria regulated by Korean Soil Conservation Act; however, Cd in 38 and 13 soils in Samcheonpo and Hadong, respectively, exceeded the criterion. As a result of calculation of the geoaccumulation index and the enrichment factor, the soils were extremely contaminated with Cd and such high loading of Cd to the soils was due to anthropogenic source(s). Sequential extraction of the soils, however, showed that heavy metals including Cd existed as hardly extractable phases, which represented a low bioavailability of the heavy metals. Our results indicated that Cd contamination around the coal-fired power plants was due to artificial source(s) and may unlikely deteriorate nearby ecosystems.