http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
F급 가스터빈의 압력비 증가 시 운전데이터를 이용한 열효율 변동 예측
박준철,허기무,윤성훈,문윤재,유호선,이재헌,Park, Joon-Chul,Heo, Ki-Moo,Yoon, Sung-Hoon,Moon, Yoon-Jae,Yoo, Ho-sun,Lee, Jae Heon 한국플랜트학회 2014 플랜트 저널 Vol.10 No.3
국내 S복합발전본부의 150 MW급 가스터빈 축류압축기(18단)에서 저압단(1~9단)을 교체하여 압축기의 압력비를 기존 13.5에서 증가시킬 때 가스터빈 열효율을 예측하였다. 압력비 13.5일 때의 운전자료로 구한 압축기 단열효율과 터빈 단열효율을 적용하여 압력비 14.2에서 터빈일이 최대가 되는 압력비인 18.2까지 압력비를 1씩 증가하면서 열효율을 예측하였다. 압력비 증가 시 이론 열효율은 각 압력비에 대하여 각각 36.95%에서 38.6%까지 예측되었다. 압축기 저압단 교체 후 압력비가 16.2으로 증가되었을 때 실시한 성능시험 결과 열효율은 35.11%였다. 압력비 16.2일 때의 이론 열효율 37.87%와 비교하여 7.86% 범위에서 일치하였다. 압축기 교체 전 압력비 13.5일 때의 운전자료로 구한 압축기 단열효율과 터빈 단열효율을 이용하여 압력비 증가 시의 열효율을 성능시험 열효율의 7.86%내에서 예측할 수 있다. The gas turbine thermal efficiency has been predicted when the compressor pressure ratio increases from the previously set 13.5. Thermal efficiency has been predicted from 14.2 up to 18.2 at which the turbine work reaches its maximum value on the assumption that isentropic efficiency of the compressor and the turbine are constant using the operating data at the pressure ratio of 13.5. 35.11% of thermal efficiency has been acquired by the performance test when the pressure ratio increased to 16.2 since replacing the compressor low pressure stages. It's been approved that predicting thermal efficiency using the operating data at the pressure ratio of 13.5 is useful within 7.86% of tolerance as the figure measured by the performance test.
박준철(Park, Joon-Chul) 역사학회 2014 역사학보 Vol.0 No.224
Bernd Moeller remarked that “no humanism, no Reformation.” Moeller’s judgment had long enjoyed favorable reactions among Reformation scholars. But the relationship between the two movements might deny such a unilateral evaluation, since the initial support of many Northern humanists for the German Reformation changed significantly as Luther and the reform movement he led began to take radical steps in the years around 1520. A large part of humanists, who identified themselves with the Catholic faith, now realized that the Wittenberg reformer was no longer their sincere colleague because the latter tried to destroy the institutionalized church and established religious order. To put the matter differently, the nature and ultimate goal of the German Reformation were revealed quite different from those of Northern humanism. German universities had long been dominated by such subjects as abtruse logic and speculative grammar as well as scholastic theology. Reformers like Luther and Melanchthon pursued massive curricular reforms of the German universities. They saw in the ‘studia humanitatis’ and the Bible indispensible tools for the education of the new Protestant clergy. As a result of the curricular reforms, northern humanism could enter into the central area of the German universities.