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مدلسازی شبکه‌ای جهت بررسی اثر کوپلینگ پدیده‌های انتقال بر توزیع آب در لایه نفوذ گاز | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| مقاله 11، دوره 53، شماره 11، بهمن 1400، صفحه 5505-5528 اصل مقاله (2.91 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2021.19340.7004 | ||
| نویسندگان | ||
| حامد قلی پور1؛ محمد جعفر کرمانی* 1؛ رحیم زمانیان2 | ||
| 1دانشکده مهندسی مکانیک، دانشگاه صنعتی امیرکبیر، تهران، ایران | ||
| 2پژوهشکده فن‌آوری‌های نو، دانشگاه صنعتی امیرکبیر، تهران، ایران | ||
| چکیده | ||
| لایه نفوذ گاز سمت کاتد در پیل‌های سوختی غشا پلیمری، آب تولید شده در واکنش را از محیط متخلخل خود به بیرون هدایت می‌کند. این مقاله نگاهی انتقادی به مدل‌های شبکه متخلخل تولید شده برای لایه نفوذ گاز مبتنی بر فرض تزریق یکنواخت آب مایع از لایه کاتالیست به درون لایه نفوذ گاز دارد. این مدل‌ها منجر به توزیع نسبتاً یکنواختی از اشباع آب مایع در راستای درون-صفحه‌ای در لایه نفوذ گاز می‌شوند و هیچ تفاوتی تحت کانال‌های جریان و تحت دنده‌ها مشاهده نمی‌گردد که با مشاهدات آزمایشگاهی مغایرت دارد. در این مقاله سعی شده است که مدل شبکه‌ای جریان دوفازی موجود با دیگر پدیده‌های انتقال در لایه نفوذ گاز و دیگر لایه‌ها کوپل شود. برای این کار، مدل مورد نظر با مدل‌های شبکه‌ای انتقال اکسیژن و الکترون در کاتد و همچنین با مدل واکنش الکتروشیمیایی از لایه کاتالیست و مدل انتقال پروتون در غشا کوپل می‌شود. اولین نتیجه مدل، توزیع نرخ تولید محلی آب در لایه کاتالیست و همچنین تکامل زمانی نرخ کل تولید آب در لایه کاتالیست است که یک کاهش تقریبی %50 از شروع به کار پیل تا رسیدن به حالت دایمی تجربه می‌کند. در نتیجه کوپلینگ، توزیع اشباع آب در لایه نفوذ گاز کاملاً غیریکنواخت بوده و شاهد ماکزیمم‌هایی تحت دنده‌ها می‌باشیم که نتیجه مستقیم تولید غیریکنواخت آب مایع در محل‌های انجام واکنش است. | ||
| کلیدواژه‌ها | ||
| مدل شبکه متخلخل؛ لایه نفوذ گاز؛ پیل سوختی غشا پلیمری؛ جریان دوفازی؛ کوپلینگ | ||
| عنوان مقاله [English] | ||
| Network Modeling to Investigate the Effect of Coupling the Transport Phenomena on Water Distribution in Gas Diffusion Layer | ||
| نویسندگان [English] | ||
| Hamed Gholipour1؛ Mohammad J. Kermani1؛ Rahim Zamanian2 | ||
| 1Mechanical engineering department, Amirkabir university of technology, Tehran, Iran | ||
| 2New Technologies Research Center, Amirkabir University of Technology, Tehran, Iran | ||
| چکیده [English] | ||
| The cathode side gas diffusion layer in polymer electrolyte membrane fuel cells discharges out the water generated as a result of the electrochemical reaction through its porous medium. This paper criticizes the generated pore network models for gas diffusion layers assuming uniform injection of liquid water from the catalyst layer. These models lead to a roughly uniform distribution of liquid water saturation in the in-plane direction making no difference between under gas channel and under rib regions which is in contradiction with the in-situ visualizations of gas diffusion layers. It has been attempted in this paper to couple the existing two-phase flow network models to other transport phenomena in the gas diffusion layer and also in other layers. To achieve this, the mentioned model is coupled to network models of oxygen and electron transport at the cathode side and also to a model of electrochemical reaction at the catalyst layer and a proton transport model of the membrane. As the first result of modeling, the distribution of local water generation rate and also the temporal evolution of total water generation rate at catalyst layer are presented, the latter experiencing an approximate 50% reduction from start-up to steady-state. The resulting water saturation distribution is strongly non-uniform, and maximums are observed under the ribs which is a direct result of non-uniform water generation at reaction sites. | ||
| کلیدواژه‌ها [English] | ||
| Pore network model, Gas diffusion layer, Polymer electrolyte membrane fuel cell, Two-phase flow, Coupling | ||
| مراجع | ||
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[1] R. O'Hayre, S.-W. Cha, W. Colella, F.B. Prinz, Fuel Cell Fundamentals, 3rd Edition, John Wiley & Sons Inc 2016. [2] H. Li, Y. Tang, Z. Wang, Z. Shi, S. Wu, D. Song, J. Zhang, K. Fatih, J. Zhang, H. Wang, Z. Liu, R. Abouatallah, A. Mazza, A review of water flooding issues in the proton exchange membrane fuel cell, Journal of Power Sources, 178(1) (2008) 103-117. [3] G.-G. Park, Y.-J. Sohn, T.-H. Yang, Y.-G. Yoon, W.-Y. Lee, C.-S. Kim, Effect of PTFE contents in the gas diffusion media on the performance of PEMFC, Journal of Power Sources, 131(1) (2004) 182-187. [4] H. Heidary, M.J. Kermani, Performance enhancement of fuel cells using bipolar plate duct indentations, International Journal of Hydrogen Energy, 38(13) (2013) 5485-5496. [5] A. Ghanbarian, M.J. Kermani, J. Scholta, M. Abdollahzadeh, Polymer electrolyte membrane fuel cell flow field design criteria – Application to parallel serpentine flow patterns, Energy Conversion and Management, 166 (2018) 281-296. [6] Z. Qi, A. Kaufman, Improvement of water management by a microporous sublayer for PEM fuel cells, Journal of Power Sources, 109(1) (2002) 38-46. [7] A.Z. Weber, R.L. Borup, R.M. Darling, et al., A Critical Review of Modeling Transport Phenomena in Polymer-Electrolyte Fuel Cells, Journal of The Electrochemical Society, 161(12) (2014) F1254-F1299. [8] A.H. Tavangarrad, B. Mohebbi, S.M. Hassanizadeh, R. Rosati, J. Claussen, B. Blümich, Continuum-Scale Modeling of Liquid Redistribution in a Stack of Thin Hydrophilic Fibrous Layers, Transport in Porous Media, 122(1) (2018) 203-219. [9] M. Rebai, M. Prat, Scale effect and two-phase flow in a thin hydrophobic porous layer. Application to water transport in gas diffusion layers of proton exchange membrane fuel cells, Journal of Power Sources, 192(2) (2009) 534-543. [10] P.K. Sinha, C.-Y. Wang, Pore-network modeling of liquid water transport in gas diffusion layer of a polymer electrolyte fuel cell, Electrochimica Acta, 52(28) (2007) 7936-7945. [11] K.-J. Lee, J.H. Nam, C.-J. Kim, Pore-network analysis of two-phase water transport in gas diffusion layers of polymer electrolyte membrane fuel cells, Electrochimica Acta, 54(4) (2009) 1166-1176. [12] E.F. Medici, J.S. Allen, The Effects of Morphological and Wetting Properties of Porous Transport Layers on Water Movement in PEM Fuel Cells, Journal of The Electrochemical Society, 157(10) (2010) 1505-1514. [13] K.-J. Lee, J.H. Nam, C.-J. Kim, Steady saturation distribution in hydrophobic gas-diffusion layers of polymer electrolyte membrane fuel cells: A pore-network study, Journal of Power Sources, 195(1) (2010) 130-141. [14] R. Wu, Q. Liao, X. Zhu, H. Wang, Impacts of the mixed wettability on liquid water and reactant gas transport through the gas diffusion layer of proton exchange membrane fuel cells, International Journal of Heat and Mass Transfer, 55(9) (2012) 2581-2589. [15] E.F. Médici, J.S. Allen, Evaporation, two phase flow, and thermal transport in porous media with application to low-temperature fuel cells, International Journal of Heat and Mass Transfer, 65 (2013) 779-788. [16] K.-J. Lee, J.H. Kang, J.H. Nam, Liquid water distribution in hydrophobic gas-diffusion layers with interconnect rib geometry: An invasion-percolation pore network analysis, International Journal of Hydrogen Energy, 39(12) (2014) 6646-6656. [17] M. Fazeli, J. Hinebaugh, A. Bazylak, Investigating Inlet Condition Effects on PEMFC GDL Liquid Water Transport through Pore Network Modeling, Journal of The Electrochemical Society, 162(7) (2015) F661-F668. [18] C. Qin, Water Transport in the Gas Diffusion Layer of a Polymer Electrolyte Fuel Cell: Dynamic Pore-Network Modeling, Journal of The Electrochemical Society, 162(9) (2015) F1036-F1046. [19] M. Fazeli, J. Hinebaugh, Z. Fishman, et al., Pore network modeling to explore the effects of compression on multiphase transport in polymer electrolyte membrane fuel cell gas diffusion layers, Journal of Power Sources, 335 (2016) 162-171. [20] P. Carrere, M. Prat, Liquid water in cathode gas diffusion layers of PEM fuel cells: Identification of various pore filling regimes from pore network simulations, International Journal of Heat and Mass Transfer, 129 (2019) 1043-1056. [21] C.-Z. Qin, B. Guo, M. Celia, et al., Dynamic pore-network modeling of air-water flow through thin porous layers, Chemical Engineering Science, 202 (2019) 194-207. [22] M. Aghighi, M.A. Hoeh, W. Lehnert, et al., Simulation of a Full Fuel Cell Membrane Electrode Assembly Using Pore Network Modeling, Journal of The Electrochemical Society, 163(5) (2016) F384-F392. [23] I.V. Zenyuk, E. Medici, J. Allen, et al., Coupling continuum and pore-network models for polymer-electrolyte fuel cells, International Journal of Hydrogen Energy, 40(46) (2015) 16831-16845. [24] N. Belgacem, M. Prat, J. Pauchet, Coupled continuum and condensation–evaporation pore network model of the cathode in polymer-electrolyte fuel cell, International Journal of Hydrogen Energy, 42(12) (2017) 8150-8165. [25] P. Deevanhxay, T. Sasabe, S. Tsushima, et al., Investigation of water accumulation and discharge behaviors with variation of current density in PEMFC by high-resolution soft X-ray radiography, International Journal of Hydrogen Energy, 36(17) (2011) 10901-10907. [26] H. Rinne, The Weibull Distribution, A Handbook, CRC Press, 2009. [27] D.A. Caulk, D.R. Baker, Heat and Water Transport in Hydrophobic Diffusion Media of PEM Fuel Cells, Journal of The Electrochemical Society, 157(8) (2010) B1237-B1244. [28] R. Lenormand, E. Touboul, C. Zarcone, Numerical models and experiments on immiscible displacements in porous media, Journal of Fluid Mechanics, 189 (1988) 165-187. [29] M. Singh, K.K. Mohanty, Dynamic modeling of drainage through three-dimensional porous materials, Chemical Engineering Science, 58(1) (2003) 1-18. [30] T.G. Tranter, J.T. Gostick, A.D. Burns, et al., Capillary Hysteresis in Neutrally Wettable Fibrous Media: A Pore Network Study of a Fuel Cell Electrode, Transport in Porous Media, 121(3) (2018) 597-620. [31] J. Eller, J. Roth, F. Marone, et al., Operando Properties of Gas Diffusion Layers: Saturation and Liquid Permeability, Journal of The Electrochemical Society, 164(2) (2017) F115-F126. [32] L. Holzer, O. Pecho, J. Schumacher, et al., Microstructure-property relationships in a gas diffusion layer (GDL) for Polymer Electrolyte Fuel Cells, Part I: effect of compression and anisotropy of dry GDL, Electrochimica Acta, 227 (2017) 419-434. [33] I. Nitta, T. Hottinen, O. Himanen, et al., Inhomogeneous compression of PEMFC gas diffusion layer: Part I. Experimental, Journal of Power Sources, 171(1) (2007) 26-36. [34] J. Becker, R. Flückiger, M. Reum, et al., Determination of Material Properties of Gas Diffusion Layers: Experiments and Simulations Using Phase Contrast Tomographic Microscopy, Journal of The Electrochemical Society, 156(10) (2009) B1175-B1181. [35] C. Qin, D. Rensink, S. Fell, et al., Two-phase flow modeling for the cathode side of a polymer electrolyte fuel cell, Journal of Power Sources, 197 (2012) 136-144. [36] Y. Wang, C.-Y. Wang, A Nonisothermal, Two-Phase Model for Polymer Electrolyte Fuel Cells, Journal of The Electrochemical Society, 153(6) (2006) A1193. [37] L. Xing, X. Liu, T. Alaje, R. Kumar, M. Mamlouk, K. Scott, A two-phase flow and non-isothermal agglomerate model for a proton exchange membrane (PEM) fuel cell, Energy, 73 (2014) 618-634. | ||
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