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정낙신(Nak Shin Jung),양민양(Min Yang Yang) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
This paper presents the analytical prediction of stability lobes in milling. The stability lobes are obtained by measuring the frequency response function (FRF) of a machining center at the end of the end mill, identifying cutting constants, and approximating cutting force coefficients. The stability lobes are experimentally verified through cutting tests.
〈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.