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dc.contributor.authorHung, Jung-Chungen_US
dc.contributor.authorLin, Chih-Chiaen_US
dc.date.accessioned2014-12-08T15:22:35Z-
dc.date.available2014-12-08T15:22:35Z-
dc.date.issued2012-05-15en_US
dc.identifier.issn0378-7753en_US
dc.identifier.urihttp://hdl.handle.net/11536/15974-
dc.description.abstractHigh aspect-ratio micro-flow channels on bipolar plates have the advantage of improving fuel cell performance. This study forms micro-flow channels with a high aspect ratio by increasing the forming pressure during the hydroforming process. This study designs and constructs a mechanical apparatus to enable a two-stage pressure increase in the hydroforming process. A high-pressure container is designed with three-layered tapered cylinders to sustain 1230.17 MPa working pressures, and a special seal component is designed to seal the high-pressure fluid and maintain high pressure. The feasibility of this high-pressure hydroforming technique is verified in preliminary tests. The investigation indicates that the aspect ratio of micro-flow channels can reach 0.468 when a hydrostatic pressure of 250 MPa is applied. Compared with the maximum aspect ratio of 0.31 formed using the traditional hydroforming process, the aspect ratio of micro-flow channels in this study was 51% higher, which enables the fuel cells with metallic bipolar plates to meet both performance and manufacturing requirements. (C) 2012 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectFuel cellen_US
dc.subjectHigh-pressure hydroforming apparatusen_US
dc.subjectMetallic bipolar plateen_US
dc.subjectMicro-flow channelsen_US
dc.titleFabrication of micro-flow channels for metallic bipolar plates by a high-pressure hydroforming apparatusen_US
dc.typeArticleen_US
dc.identifier.journalJOURNAL OF POWER SOURCESen_US
dc.citation.volume206en_US
dc.citation.issueen_US
dc.citation.epage179en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000302755400024-
dc.citation.woscount8-
Appears in Collections:Articles


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