• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집B
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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.

• 한국수소및신에너지학회논문집
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• 제21권5호
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• pp.470-477
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• 2010

The IGCC (Integrated gasification combined cycle) is known for one of the highest efficiency and the lowest emitting coal fueled power generating technologies. As the core technology of this system is the gasifier to make the efficiency and the continuous operation time increase, the research about different coal's gasification has been conducted. Our research group had set-up the coal gasifier for the pilot test to study the effect of different coals-Shenhua and Adaro coal- on gasification characteristics. Gasification conditions like temperature and pressure were controlled at a fixed condition and coal feed rate was also controlled 30 kg/h to retain the constant experimental condition. Through this study we found effects of coal composition and $O_2$/coal ratio on the cold gas efficiency, carbon conversion rate. The compounds of coal like carbon and ash make the performance of gasifier change. And carbon conversion rate was decreased with reduced $O_2$/coal ratio. The optical $O_2$/coal ratio is 0.8 for the highest cold gas efficiency approximately. At those operating conditions, the higher coal has the C/H ratio, the lower syn-gas has the $H_2$/CO ratio.

• 한국건축시공학회지
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• 제21권6호
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• pp.551-562
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• 2021

본 연구에서는 IGCC에서 발생하는 부산물인 CGS를 콘크리트용 혼합 잔골재로써 효율적으로 활용하는 방안을 제시하기 위하여 플라이애시 치환 매스 콘크리트의 수화열 저감 효과를 확보하기 위한 방안으로 CGS 기반 혼합 잔골재와 플라이애시 치환에 따른 수화열 저감 특성 분석 및 해석을 실시 하고자 한다. 따라서, 매스 콘크리트의 수화열 저감을 위하여 활용되는 플라이애시 기반 저발열 결합재에 CGS를 잔골재로 치환하여 최적의 조합으로 FA 30% 및 CGS를 잔골재로 50% 치환할 경우 저발열 결합재 FA를 단일 치환한 경우보다 복합상승 효과에 따라 수화열 저감 성능이 더 크게 나타났다. 따라서 산업부산물인 CGS 골재 조합에 플라이애시를 복합 치환한 분체-골재조합 재료 시스템은 매스 콘크리트 수화열 저감 공법의 효율적인 대안으로서 활용이 기대된다.

• 한국유체기계학회 논문집
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• 제2권1호
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• pp.7-14
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• 1999

This simulation method is developed by using GateCycle code for the performance evaluation of the gas turbine in IGCC(Integrated Gasification Combined Cycle) power plant that uses clean coal gas fuel derived from coal gasification and gas clean-up processes and it is integrated with ASU(Air Separation Unit). In the present simulation method, thermodynamic calculation procedure is incorporated with compressor performance map and expander choking models for considering the off-design effects due to coal gas firing and ASU integration. With the clean coal gases produced through commercially available chemical processes, their compatibility as IGCC gas turbine fuel is investigated in the aspects the overall performance of the gas turbine system. The predictions by the present method show that the reduction of the air extraction from gas turbine to ASU results in a remarkable increase in the efficiency and net power of gas turbines, but it is accompanied with a shift of compressor operation point toward to surge limit. In addition, the present analysis results reveal the influence of compressor performance characteristics of gas turbine have to be carefully examined in designing the ASU integration process and evaluating the overall performance parameters of the gas turbine in IGCC Power plant.

• 대한기계학회논문집B
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• 제32권1호
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• pp.54-61
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• 2008

Integrated Gasification Combined Cycle (IGCC) power plant converts coal to syngas, which is mainly composed of hydrogen and carbon monoxide, by the gasification process and produces electric power by the gas and steam turbine combined cycle power plant. The purpose of this study is to investigate the influence of using syngas in a gas turbine, originally designed for natural gas fuel, on its performance. A commercial gas turbine is selected and variations of its performance characteristics due to adopting syngas is analyzed by simulating off-design gas turbine operation. Since the heating value of the syngas is lower, compared to natural gas, IGCC plants require much larger fuel flow rate. This increases the gas flow rate to the turbine and the pressure ratio, leading to far larger power output and higher thermal efficiency. Examination of using two different syngases reveals that the gas turbine performance varies much with the fuel composition.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2011년도 춘계학술대회 및 Fine pattern PCB 표면 처리 기술 워크샵
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• pp.77-78
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• 2011

저비용, 고효율, 안정적 수급이 가능한 전력 에너지원이 요구되면서 석탄이 새로운 에너지원으로 급부상하게 됨에 따라 차세대 친환경 석탄화력 발전기술인 IGCC (Integrated Gasification Combined Cycle) 발전 시스템 의 개발이 필요하게 되었다. 석탄가스화 공정(IGCC: integrated coal gasification combined cycle)은 석탄을 가스화한 후 이를 이용하여 복합발전소를 운전하는 발전기술로서 석탄을 고온, 고압아래에서 수소와 일산화탄소를 주성분으로 한 합성가스로 전환한 뒤 합성가스 중에 포함 된 분진과 황 화합물 등 유해물질을 제거하고 천연가스와 유사한 수준으로 정제하여 전기를 생산하는 친환경 발전 기술이다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.138-139
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• 2018

This study is a basic review of the basic characteristics of mortar as a result of the use of concrete as a fine aggregate for CGS(coal gasification slag) generated from the IGCC(integrated gasification combined cycle). The analysis shows that CGS and crushed sand + seal sand mix is the best combination of CGS combined with about 75 % of CGS based on the effects of promoting liquidity and strength. This is expected to be a positive factor in securing the strength and flexibility of concrete given the optimal mix of CGS, and may also contribute to the improvement of quality.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.159-160
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• 2018

In this study, the characteristics of the Mock-up test were reviewed to analyze the applicability of the coal gasification slag (CGS) from the integrated gasification combination Cycle (IGCC) to the concrete fine aggregate. The analysis shows that CGS and crushed sand mix is the best combination of CGS combined with about 50 % of CGS based on the effects of promoting liquidity and strength. This is expected to be a positive factor in securing the strength and flexibility of concrete given the optimal mix of CGS, and may also contribute to the improvement of quality.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.21-22
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• 2018

In this study, the characteristics of the Mock-up test were reviewed to analyze the applicability of the coal gasification slag (CGS) from the integrated gasification combination Cycle (IGCC) to the concrete fine aggregate. The analysis shows that CGS and crushed sand mix is the best combination of CGS combined with about 50 % of CGS based on the effects of promoting liquidity and strength. This is expected to be a positive factor in securing the strength and flexibility of concrete given the optimal mix of CGS, and may also contribute to the improvement of quality.

• 한국건축시공학회지
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• 제19권5호
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• pp.391-399
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• 2019

본 연구는 국내에 새롭게 도입하고자 시운전중인 석탄가스화복합발전(IGCC)에서 발생하는 석탄가스화 용융슬래그(CGS)를 국내의 부족한 골재자원으로 재활용 가능성을 검토하였다. 즉, 부족한 골재자원확보를 위해 IGCC에서 발생하는 CGS를 빈배합 모르타르인 콘크리트 2차제품용 잔골재로 활용하고자 국내 건설산업에서 가장 많이 사용되고 있는 석산의 부순 잔골재로 양호한 품질의 CSa 및 굵은 입자로 표준입도를 벗어난 CSb와 해사인 SS를 혼합한 혼합잔골재에 CGS를 0~100 % 범위에서 치환하는 것을 검토하였다. 연구결과, CSa 혹은 CSb+SS에 CGS를 25~50% 정도 치환할 경우 골재의 입도측면 및 시멘트 모르타르의 유동성 및 압축강도 측면에서 양호한 결과가 얻어져 활용가능함을 확인할 수 있었다.