Auteur Daejong Kim
Documents disponibles écrits par cet auteur (6)
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Donghyun Lee, Auteur ; Daejong Kim, Auteur |Air foil bearings (AFBs) have been recognized as the most promising for oil-free turbomachinery. However, the applications of AFBs to the relatively large turbomachinery have many technical challenges due to limited load capacity and wear during[...]
Article : texte imprimé
Daejong Kim, Auteur ; Donghyun Lee, Auteur |Air foil bearings (AFBs) have been explored for various micro- to midsized turbomachinery for decades, and many successful applications of the AFBs to small turbomachinery were also reported. As machine size increases, however, one of the critic[...]
Article : texte imprimé
Daejong Kim, Auteur ; Jeongpill Ki, Auteur ; Youngcheol Kim, Auteur |Environment-friendly microturbomachinery has its broad current and future applications in fuel cells, power generation, oil-free industrial blowers and compressors, small aero propulsions engines for missiles and small aircrafts, automotive turb[...]
Article : texte imprimé
Daejong Kim, Auteur ; George Zimbru, Auteur |Air/gas foil bearings (AFB) have shown a promise in high-speed micro to mid-sized turbomachinery. Compared to rolling element bearings, AFBs do not require oil lubrication circuits and seals, allowing the system to be less complicated and more e[...]
Article : texte imprimé
Donghyun Lee, Auteur ; Daejong Kim, Auteur |A new thermohydrodynamic analysis model for bump air foil bearings with a detailed thermal model of bump foil structures and rotor is presented. In the developed model, temperatures of lubricating air film, top foil, bump foils, bearing sleeve, [...]
Article : texte imprimé
Donghyun Lee, Auteur ; Daejong Kim, Auteur ; Ramesh P. Sadashiva, Auteur |Oil-free turbomachinery have emerged as one of the core technologies for the future green power generation systems as stand-alone systems or hybridized with high temperature fuel cells or solar systems. Oil-free technology allows compact, clean,[...]
