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  1. No Access

    Article

    Wettability characterization of pore networks of gas diffusion layers in proton exchange membrane fuel cells

    Both the structure of the pores in a Gas diffusion layer (GDL), and the interactive characteristics between water and the carbon fibers which compose the GDL are very important in understanding transport pheno...

    Yongtaek Lee in Journal of Mechanical Science and Technology (2017)

  2. No Access

    Article

    Control of oxygen concentration in water using a hollow fiber membrane contactor

    A novel theoretical analysis was performed to regulate the oxygen concentration in water using a membrane contactor composed of nonporous hollow fibers. The governing ordinary differential equations were deriv...

    Dongjae Jeong, Mihye Yun, Jeongsik Oh, Ina Yum… in Korean Journal of Chemical Engineering (2010)

  3. No Access

    Article

    Numerical analysis on the performance of cooling plates in a PEFC

    Among the various types of fuel cells, the polymer electrolyte fuel cell (PEFC) is one of the prospective power sources for automotive applications, stationary cogeneration systems, and mobile electronic devic...

    Jongmin Choi, Yoon-Ho Kim, Yongtaek Lee… in Journal of Mechanical Science and Technolo… (2008)

  4. No Access

    Article

    Effects of external humidification on the performance of a polymer electrolyte fuel cell

    The dryness of the membrane of a polymer electrolyte fuel cell (PEFC) decreases the ionic conductivity, resulting in performance reduction. In this study, the effects of external humidification to the membrane...

    Yongtaek Lee, Yongchan Kim, Yonghee Jang… in Journal of Mechanical Science and Technolo… (2007)