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We demonstrate a planar direct methanol fuel cell by integrating a 200 mum-wide Nafion strip in a polydimethylsiloxane (PDMS) structure. The design is based on two 200 mum-wide parallel microfluidic channels, sandwiching the Nafion strip. We mechanically clamp the PDMS/ Nafion assembly with a catalyst-covered glass chip and use 1 M CH3OH/ 0.5 M H2SO4 as fuel in the anodic channel and O2-saturated...
A detailed design process of the Z-source inverter is presented in this paper. A DC rail clamp circuit is used to reduce the overshoot of the device during turn off. The thermal and 3-D design process is gone through, and the loss calculation of the inverter is discussed, which is different from traditional PWM inverters. A 50 kW inverter for fuel cell vehicle is developed to demonstrate the validity...
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