가스터빈 공기량 조절에 따른 열병합발전 성능 변화

The performance of combined heat and power plant according to gas turbine air mass flow rate change

  • 발행 : 2022.07.05

초록

본 연구에서는 부분부하 운전 시 가스터빈의 공기량 조절에 따른 열병합 발전의 운전데이터 변화를 알아보았다. 가스터빈 부분부하 80%시 시뮬레이션 한 결과 입구가이드베인을 최대 24% 추가로 닫을 수 있었고, 압축기 공기량은 66.11 kg/s 감소, 배기가스 온도는 52℃ 상승시킬 수 있었다. 부분부하 90%는 입구가이드베인을 최대 12% 추가로 닫을 수 있었고, 압축기 공기량은 33.33 kg/s 감소, 배기가스 온도는 23℃ 상승 시킬 수 있었다. 열부하 추종운전 시 부분 부하 80%에서 출력을 최대 5.68 MW 상승, 복합발전 효율을 0.73% 상승, 열병합발전 효율을 1.81% 상승 시킬 수 있었고, 부분부하 90%에서 출력을 최대 2.55 MW 상승, 복합발전 효율을 0.32% 상승, 열병합발전 효율을 0.72% 상승 시킬 수 있었다.

In this study, we investigated the operation data of combined heat and power in accordance with the change of the inlet guide vane with partial load. The partial load 80% could close the inlet guide vane up to 24%, and the exhaust gas temperature could be increased by 52℃. The partial load 90% could close the inlet guide vane up to 12%, and the exhaust gas temperature could be increased by 23℃. At 80% of partial load with the thermal load tracking mode, the output could be increased up to 5.68 MW, the combined cycle efficiency increased by 0.73%, and the combined heat and power efficiency increased by 1.81%. At 90% of the partial load, the output could be increased up to 2.55 MW, the combined cycle efficiency increased by 0.32%, and the combined heat and power efficiency increased by 0.72%.

키워드

참고문헌

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