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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳發林 | |
dc.contributor.author | Chia-Hui Lin | en |
dc.contributor.author | 林佳慧 | zh_TW |
dc.date.accessioned | 2021-06-15T01:36:08Z | - |
dc.date.available | 2019-12-31 | |
dc.date.copyright | 2009-07-21 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-07-16 | |
dc.identifier.citation | [1] U. Pasaogullari, C. Y. Wang, “Two-phase transport and the role of micro-porous layer in polymer electrolyte fuel cells”, Electrochimica Acta 49 (2004) 4359-4369
[2] L. You, H. Liu, “A two-phase flow and transport model for the cathode of PEM fuel cells”, International Journal of Heat and Mass Transfer 45 (2002) 2277-2287 [3]P. Zhou, C. W. Wu, G. J. Ma, “Contact resistance prediction and structure optimization of bipolar plates”, Journal of Power Sources 159 (2006) 1115-1122 [4] P. Zhou, C. W. Wu, G. J. Ma, “Influence of clamping force on the performance of PEMFCs ”, Journal of Power Sources 163 (2007) 874-881 [5] P. Zhou, C. W. Wu, “Numerical study on the compression effect of gas diffusion layer on PEMFC performance”, Journal of Power Sources 170 (2007) 93-100 [6] L. H. Zhang, Y. Liu, H. M. Song, S. X. Wang, Y. Y. Zhou, S. J. Hu, “Estimation of contact resistance in proton exchange membrane fuel cells”, Journal of Power Sources 162 (2006) 1165-1171 [7] G. He, Z. C. Zhao, P. W. Ming, A. Abuliti, C. Y. Yin, “A fractal model for predicting permeability and liquid water relative permeability in the gas diffusion layer (GDL) of PEMFCs”, Journal of Power Sources 163 (2007) 846-852 [8] Z.H. Wang, C.Y. Wang, K.S. Chen, “Two-phase flow and transport in the air cathode of proton exchange membrane fuel cells”, Journal of Power Sources 94 (2001) 40-50 [9] U. Pasaogullari, C. Y. Wang, “Liquid water transport in gas diffusion layer of polymer electrolyte fuel cells”, Journal of Electrochemical Society 151 (2004) A399-A406 [10] U. Pasaogullari, P. P. Mukherjee, C. Y. Wang, K. S. Chen, “Anisotropic heat and water transport in a PEFC cathode gas diffusion layer”, Journal of Electrochemical Society 154 (2007) B823-B834 62 [11] Y. Wang, C. Y. Wang, “A nonisothermal, two-phase model for polymer electrolyte fuel cells”, Journal of Electrochemical Society 153 (2006) A1193-A1200 [12] J. S. Yi, T. V. Nguyen, “Multicomponent transport in porous electrodes of proton exchange membrane fuel cells using the interdigitated gas distributors”, Journal of Electrochemical Society 146 (1999) 38-45 [13] J.J. Hwang, “A complete two-phase model of porous cathode of a PEM fuel cell”, Journal of Power Sources 164 (2007) 174-181 [14]M. Wakizoe, O. A. Velev, S. Srinivasan, “Analysis of proton exchange membrane fuel cell performance with alternate membranes”, Electrochimica Acta 40 (1995) 335-344 [15]K. W. Lum, J.J. Mcguirk, “2D and 3D modeling of a PEMFC cathode with interdigitated gas distributors”, Journal of the Electrochemical Society 152 (2005) A811-A817 [16]W. R. Chang, J. J. Hwang, F. B. Weng, S. H. Chan, “Effect of clamping pressure on the performance of a PEM fuel cell”, Journal of Power Sources 166 (2007) 149-154 [17]E. A. Cho, U. S. Jeon, H. Y. Ha, S. A. Hong, I. H. Oh, “Characteristics of composite bipolar plates for polymer electrolyte membrane fuel cells”, Journal of Power Sources 125 (2004) 178-182 [18] W. He, J. S. Yi, T. V. Nguyen, “Two phase flow model of the cathode of PEM fuel cells using interdigitated flow fields”, AIChE Journal 46 (2000) 2053-2064 [19]W. Sun, B. A. Peppley, K. Karan, “Modeling the influence of GDL and flow-field plate parameters on the reaction distribution in the PEMFC cathode catalyst layer”, Journal of Power Sources 144 (2005) 43-53 [20]W. K. Lee, C. H. Ho, J. W. Vanzee, M. Murthy, “The effects of compression and gas diffusion layers on the performance of a PEM fuel cell”, Journal of Power Sources 84 (1999) 45-51 [21]J. Ge, A. Higier, H. Liu, “Effect of gas diffusion layer compression on PEM fuel cell performance”, Journal of Power Sources 159 63 64 (2006) 922-927 [22]T. Zhou, H. Liu, “Effects of the electrical resistances of the GDL in a PEM fuel cell”, Journal of Power Sources 161 (2006) 444-453 [23] M. Kaviany, “Principles of Heat Transfer in Porous Media”, Springer-Verlag, New York, (1999) [24] F. Barbir, “PEM Fuel Cell:theory and practice”, Elsevier Academic Press, (2005) | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43084 | - |
dc.description.abstract | 本論文利用有限元素工程模擬軟體COMSOL建立二維兩相流質子交換膜燃料電池數值模型。本論文研究燃料電池陰極側輸入為空氣時,組裝壓力的不同對於氣體擴散層氧氣和液態水的分布情形。使用的模組包含應力應變模組,計算氣體擴散層經過壓縮之後的孔隙度,氧氣和液態水的擴散對流模組、質量守衡模組和動量模組。此外並分析雙極板材料為不鏽鋼時,質子交換膜燃料電池性能和氧氣和液態水飽和度的分布情形。
研究結果得知,當組裝壓力增加時,肋條下之氣體擴散層受到壓縮而變形,使得孔隙度降低,以致於影響到氣體擴散層的滲透性和擴散性,造成氧氣不易傳輸,質傳阻抗增加,導致燃料供應不足發生質傳損失,使電池性能受到影響。雖然組裝壓力的增加會減少接觸阻抗,但必須另外考慮燃料的質傳阻抗和電池性能的影響,才能找出較佳化的組裝壓力性能曲線。當雙極板材料為不鏽鋼時,由於組裝壓力較小時,接觸阻抗明顯較大,以至於歐姆阻抗相對增加,導致歐姆損失較為嚴重。因此當組裝壓力增加時,不鏽鋼的歐姆損失相對較低,使性能曲線較佳。 | zh_TW |
dc.description.abstract | This study uses the finite element simulation software COMSOL project to establish two-dimensional two-phase proton exchange membrane fuel cell by numerical model. When air is input into the fuel cell cathode-side gas diffusion layer, this paper studies the distribution of generated oxygen and liquid water. Including the use of the theory of compressed gas diffusion layer of stress and strain module, oxygen and liquid water diffusive convection module, mass conservation module and momentum module, in addition to analyze the performance and the concentration distribution of the bipolar plate, which is stainless steel.
Research results show that high clamping pressure will make the gas diffuser layer deformed and decrease the porosity of gas diffuser layer. The transport resistance increases with decreasing diffusion and permeability coefficients depending on the gas diffusion layer porosity. It leads to a small effective reaction area, when the saturation of liquid water is larger to study the elastic deformation of the gas diffusion layer and the mass transport of the reactants and products. It is found that there exists a better clamping force to obtain the higher power density for the proton exchange membrane fuel cell with the interdigitated gas distributors. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T01:36:08Z (GMT). No. of bitstreams: 1 ntu-98-R96543037-1.pdf: 10119925 bytes, checksum: ead06c3024d83b7a7efee4d185899930 (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 致謝...................................................I
中文摘要..............................................II 英文摘要............................................ III 目錄..................................................IV 表目錄................................................VI 圖目錄.............................................. VII 符號說明...............................................X 第一章 序論............................................1 1.1燃料電池簡介........................................1 1.1.1燃料電池歷史發展..................................1 1.1.2燃料電池種類......................................2 1.1.3燃料電池基本原理..................................6 1.2文獻回顧............................................7 1.3研究動機...........................................15 第二章 理論分析.......................................18 2.1基本假設...........................................18 2.2統御方程式.........................................18 2.3邊界條件...........................................24 2.4性能曲線...........................................25 2.5計算模擬流程.......................................27 第三章 結果與討論.....................................31 3.1指叉型流道.........................................31 3.1.1不同組裝壓力.....................................31 3.1.2雙極板為不鏽鋼...................................33 3.2平板型流道.........................................35 3.2.1不同組裝壓力.....................................35 3.2.2雙極板為不鏽鋼...................................38 第四章 結論與未來展望.................................57 4.1結論...............................................57 4.2未來研究方向和建議.................................61 第五章 文獻參考.......................................62 | |
dc.language.iso | zh-TW | |
dc.title | 組裝壓力對PEMFC陰極兩相流影響計算分析 | zh_TW |
dc.title | Two-dimensional modeling of two-phase transport in the cathode of a PEMFC with the influences of clamping pressure | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 張敏興,顏維謀,羅安成 | |
dc.subject.keyword | 組裝壓力,指叉型流,道,接觸阻抗,傳輸阻抗, | zh_TW |
dc.subject.keyword | clamping pressure,interdigitated channel,transport resistance, | en |
dc.relation.page | 64 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-07-16 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
顯示於系所單位: | 應用力學研究所 |
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