Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes
碩士 === 國立臺灣大學 === 機械工程學研究所 === 101 === In this study, fuel, oxidant supply and cooling systems with a microcontroller unit (MCU) were developed in a compact design to fit two 5 kW proton exchange membrane fuel cell (PEMFC) stacks (Ballard 1310). The original design of the subsystems, which had a lon...
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ndltd-TW-101NTU054891162015-10-13T23:10:17Z http://ndltd.ncl.edu.tw/handle/69292956140778294252 Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes 5kW質子交換膜燃料電池堆以二極體串並聯之氣體與水管理系統研究 Fu-Min Fang 方富民 碩士 國立臺灣大學 機械工程學研究所 101 In this study, fuel, oxidant supply and cooling systems with a microcontroller unit (MCU) were developed in a compact design to fit two 5 kW proton exchange membrane fuel cell (PEMFC) stacks (Ballard 1310). The original design of the subsystems, which had a longer pipeline and excessive control sensors, caused a large pressure drop and high power consumption. However, with an MCU, the fuel consumption and humidity can be effectively controlled within a proper purge period. Additionally, this study includes stack performances under different hydrogen recycling modes and the direct electrical coupling of two similar 5 kW stacks with diodes to obtain a higher power output. The result showed that the efficiency of the 5 kW stack is 43.46 % with a purge period of 2 minutes with hydrogen recycling and that the hydrogen utilization rate, μf, is 66.31 %. In addition, the maximum power output of the twin-coupled module (a power module with two stacks in electrical cascade/parallel arrangement) is 9.52 kW. 馬小康 2013 學位論文 ; thesis 76 zh-TW |
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碩士 === 國立臺灣大學 === 機械工程學研究所 === 101 === In this study, fuel, oxidant supply and cooling systems with a microcontroller unit (MCU) were developed in a compact design to fit two 5 kW proton exchange membrane fuel cell (PEMFC) stacks (Ballard 1310). The original design of the subsystems, which had a longer pipeline and excessive control sensors, caused a large pressure drop and high power consumption. However, with an MCU, the fuel consumption and humidity can be effectively controlled within a proper purge period. Additionally, this study includes stack performances under different hydrogen recycling modes and the direct electrical coupling of two similar 5 kW stacks with diodes to obtain a higher power output. The result showed that the efficiency of the 5 kW stack is 43.46 % with a purge period of 2 minutes with hydrogen recycling and that the hydrogen utilization rate, μf, is 66.31 %. In addition, the maximum power output of the twin-coupled module (a power module with two stacks in electrical cascade/parallel arrangement) is 9.52 kW.
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馬小康 |
author_facet |
馬小康 Fu-Min Fang 方富民 |
author |
Fu-Min Fang 方富民 |
spellingShingle |
Fu-Min Fang 方富民 Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
author_sort |
Fu-Min Fang |
title |
Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
title_short |
Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
title_full |
Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
title_fullStr |
Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
title_full_unstemmed |
Study of Gas and Water Management Systems for 5 kW PEMFC Stacks Arranged in Electrical Parallel/Cascade with Diodes |
title_sort |
study of gas and water management systems for 5 kw pemfc stacks arranged in electrical parallel/cascade with diodes |
publishDate |
2013 |
url |
http://ndltd.ncl.edu.tw/handle/69292956140778294252 |
work_keys_str_mv |
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