ASU 와 연계를 고려한 IGCC 용 가스터빈의 성능 예측

다국어 초록 (Multilingual Abstract)

The construction plan of 300MW-class IGCC plant has been pushed ahead on the Taean thermal power plant site in Korea. The integration of gas turbine and air separation unit has a significant effect on the performance and the stability of the IGCC plant. In this paper, the influence of the integration with gas turbine and air separation unit has been analyzed using commercial code(GateCycle) and in-house code(visual Basic) for the process design of gas turbine and air separation unit, respectively. To achieve an acceptable surge margin of the gas turbine, the air extraction from compressor exit and the extension of turbine nozzle area were considered. As the extraction air from compressor increases, the surge margin also increases. Furthermore, it is expected to be able to secure surge margin through the extension of turbine nozzle area. If the turbine nozzle area increases by 19.4%, the surge margin is analyzed to be similar to a design surge margin of gas turbine for natural gas. The mass flow of extraction air is limited by the operation constraints such as turbine (rotor) inlet temperature and the allowable integration degree was predicted to be about 35%. At this integration degree, the power consumption of air separation unit and the integrated system efficiency were analyzed to be about 45MW and 31%, respectively.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 시스템 모델링 및 해석 방법
• 3. 해석 결과 및 분석
• 4. 결론
• 후기
• 참고문헌