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Air pollution due to the exhaust gas from motorcars causes serious environmental problems, so it is necessary to remove NOx from the exhaust gas. In this study, NOx removal by dielectric barrier discharge (DBD) with an urea solution without any catalyst at room temperature has been investigated. The NOx removal rate and NO...
The polymer electrolyte membrane fuel cell (PEMFC) has a potential to be an alternative power source for smartphones and other mobile electronic applications. However, PEMFCs cannot quickly response against fast load change of electronic devices. To resolve this issue, we have proposed a hybrid power source system, in which super capacitors and a PEMFC are combined using DC-DC converter. The converter...
A miniature proton exchange membrane fuel cell (PEMFC) is expected to be applied to small electronic devices such as smartphones. However, PEMFC cannot response quickly against fast load changes of electronic devices. Hybrid power source system using fuel cell (FC) and supercapacitor (SC) with multi-port bidirectional DC-DC converter has been proposed. In this work, the energy management method has...
In our previous study, it is developed the method to smooth the output power of fuel cells (FCs) by combining with electrical double layer capacitors (EDLCs). This study proposes an energy control method to maintain the voltage of the EDLCs within the specified range and to reduce the fluctuation of the FC output power at the same time, using an additional PI control loop and a digital filter to gradually...
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