대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)

대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

엑서지를 이용한 대형 발전용 가스터빈의 부분부하 성능 분석

Exergy-Based Performance Analysis of Heavy-duty Gas Turbine in Part-Load Operating Conditions

  • 송태원 (서울대학교 대학원 기계항공공학부) ;
  • 손정락 (서울대학교 공과대학 기계항공공학부) ;
  • 김재환 (서울대학교 터보.동력기계연구센터) ;
  • 김동섭 (인하대학교 공과대학 기계공학과) ;
  • 노승탁 (서울대학교 공과대학 기계항공공학부)
  • 발행 : 2001.06.27
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Exergy concept is applied to the analysis of part-load performance of gas turbine engine. Exergy is a useful tool to find the source of irreversibility in thermal system. In this study, details of the performance characteristics of a heavy-duty gas turbine, l50MW-class GE 7FA model, are described by theoretical investigations with exergy analysis. Result shows that exergy destruction rate of gas turbine increases with decreased load, which means increase of irreversibility. Also, it is found that variations of IGV angle and amount of cooling air for turbine blades are closely related to the inefficiencies of compressor and turbine, respectively.

키워드