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〈학술논문〉 LNG FSRU 형 가스복합발전 플랜트 효율 향상
정낙신(Nak Shin Jeong),정승교(Seung Kyo Jung),김인일(In Il Kim) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
In this study, LNG FSRU(Floating Storage Regasification Unit)-type combined cycle power plant is newly designed, and the fuel gas supply system for improving the efficiency of the whole power plant is proposed. LNG FSRU-type power plant is the new concept of a combined cycle power plant, which has large LNG storage tanks in itself. This conceptual model is named “LNG FSPP(Floating and Storage Power Plant)”. The plant is designed to be built in the well controlled manufacturing sites like shipyards and aimed at being installed at several remote islands worldwide and some regions with lack of sufficient natural gas infrastructure. The design of power plant system, LNG containment system, fuel gas supply system, water supply & condensing system and utility system is carried out. In the newly proposed fuel gas supply system, LNG is totally vaporized using the steam exhausted out of the steam turbine. The heat exchanger system is verified through the computational experiment using commercial process simulator.
Virtual FRF를 이용한 채터강성 해석에 관한 연구
강성운(Seong-Un Kim),정낙신(Nak-Shin Jeong),이강재(Kang-Jae Lee),양민양(Min-Yang Yang) 한국생산제조학회 2009 한국생산제조시스템학회 학술발표대회 논문집 Vol.2009 No.5
The prediction of chatter stable region is a significant requirement for the manufacturing industry. Usually, the chatter stability lobes are obtained by measuring the frequency response function(FRF) of a machining center using impulse test or exciter test. However, these tests are not only spent much time, but also performed after machining center is manufactured. This paper presents virtual FRF using by F.E.M for the prediction of chatter stable region. The proposed method enables a designer to estimate the chatter resistance of machine tools at the early stage of design.
Virtual FRF를 이용한 채터강성 해석에 관한 연구
김성운,정낙신,이강재,양민양 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-
The prediction of chatter stable region is a significant requirement for the manufacturing industry. Usually, the chatter stability lobes are obtained by measuring the frequency response function(FRF) of a machining center using impulse test or exciter test. However, these tests are not only spent much time, but also performed after machining center is manufactured. This paper presents virtual FRF using by F.E.M for the prediction of chatter stable region. The proposed method enables a designer to estimate the chatter resistance of machine tools at the early stage of design.