Kang, Min Goo Lee, Chang-Whan Dong, Han Sae Jang, Seong-Cheol Song, Shin Ae Park, Hyun Seo Choi, Sun Hee Ham, Hyung Chul Han, Jonghee Nam, Suk Woo Kim, Sung Hyun Yoon, Sung Pil 2024-01-20T03:01:49Z 2024-01-20T03:01:49Z 2021-09-04 2016-11-02 0360-3199 https://pubs.kist.re.kr/handle/201004/123458 Owing to the strengthening of environmental regulations, highly efficient and environmentally sustainable power supply systems have attracted significant attention as auxiliary power units (APUs) for marine applications. Among several candidates, molten carbonate fuel cells (MCFCs) is of particularly interest because it provides high efficiency with essentially no greenhouse gas emissions of NOx and SOx. In this study, the effects of vibrations caused by sea-waves and swells on the operation of MCFCs on marine ships are investigated. An MCFC single cell with a unit area of 100 cm(2) was tested in a vibration environment at an operating temperature of 620 degrees C. At a low sealing pressure (0.1 MPa), the performance of the cell decreased owing to increased mass-transfer resistance. Electrochemical impedance spectroscopy revealed that using oxygen and CO2 as the cathode reactants mitigates the degradation by the vibration induced mass-transfer resistance. In addition, the MCFC single cell is operated under various vibration conditions, including the resonance frequency (13 and 29 Hz). It was found that the vibration environment does not affect the performance of MCFCs under normal operating conditions. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD LONG-TERM OPERATION MCFC Effects of vibrations in marine environments on performance of molten-carbonate fuel cells Article 10.1016/j.ijhydene.2016.02.134 1 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.41, no.41, pp.18732 - 18738 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 41 41 18732 18738 scie scopus 000385598300043 2-s2.0-85027943350 Chemistry, Physical Electrochemistry Energy & Fuels Chemistry Electrochemistry Energy & Fuels Article; Proceedings Paper LONG-TERM OPERATION MCFC Molten-carbonate fuel cell (MCFC) Marine environments Auxiliary power units Vibration