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논문 기본 정보

자료유형
학술대회자료
저자정보
Young-Jin Baik (Korea Institute of Energy Research) Junhyun Cho (Korea Institute of Energy Research) Hyungki Shin (Korea Institute of Energy Research) Jongjae Cho (Korea Institute of Energy Research) Bongsu Choi (Korea Institute of Energy Research) Chulwoo Roh (Korea Institute of Energy Research) Beomjoon Lee (Korea Institute of Energy Research) Gilbong Lee (Korea Institute of Energy Research) Ho-Sang Ra (Korea Institute of Energy Research)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2019년 학술대회
발행연도
2019.11
수록면
228 - 233 (6page)

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Targeting future distributed power generation applications, Korea Institute of Energy Research (KIER) has been studying sCO2 systems since 2013. In this study, the current status of the research project on the sCO2 power cycle in KIER is introduced. During the first phase of the project, a lab-scale recuperated transcritical cycle system was built and tested. In the second phase of the project, a 500℃-class semi-pilot-scale recuperated supercritical Brayton cycle has been being designed and built. Among the components developed in this phase, a low-temperature turbine-generator of design inlet temperature of 392℃ was tested at off-design condition prior to a full cycle building. In contrast to the subminiature turbine in the first phase of the project, this turbine was designed as an axial impulse type to reduce an axial force. Its first test results showed that the maximum power output of 11 ㎾e was obtained at the inlet conditions of 205℃/100 bar. A continuous running of 4.2 hours was also successful, which shows that KIER’s unique approach that introduces an axial impulse type turbine design as well as a leakage management system was successful from the viewpoint of stability and robustness.

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Abstract
1. Introduction
2. Semi-pilot-scale test loop with axial turbines
3. Summary and future work
References

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