پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شماره‌ها | 417 |
| تعداد مقالات | 5,494 |
| تعداد مشاهده مقاله | 6,136,497 |
| تعداد دریافت فایل اصل مقاله | 5,380,666 |
بررسی پارامتری جریان دوفاز در سمت کاتد پیل سوختی غشا پلیمری | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| مقاله 4، دوره 51، شماره 4، مهر و آبان 1398، صفحه 31-40 اصل مقاله (868 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2018.13474.5644 | ||
| نویسندگان | ||
| پیمان حوائج؛ محمد جعفر کرمانی* ؛ هادی حیدری؛ محمد مهدی عبداله زاده سنگرودی | ||
| دانشکده مهندسی مکانیک، دانشگاه صنعتی امیرکبیر، تهران، ایران | ||
| چکیده | ||
| در این پژوهش عملکرد پیل سوختی غشا پلیمری، با استفاده از شبیه‌سازی دوفازی، گذرا و دو بعدی در سمت کاتد پیل سوختی، بررسی می شود. ابتدا یک مدل جامع برای شبیه‌سازی جریان دوفازی ارائه شده، سپس با استفاده از روش حجم محدود، معادلات گسسته و توسط یک کد فرترن داخلی حل می گردد. بررسی پارامتری بر روی میزان آب مایع تولید شده در محیط متخلخل و اثر آن بر عملکرد پیل سوختی تحقیق می گردد. تاثیر چهار پارامتر ضریب تخلخل و قابلیت نفوذ محیط متخلخل، زاویه تماس و نرخ آب منتقل شده از غشا به کاتد مورد بررسی قرار گرفته‌اند. نتایج نشان می‌دهد که با کاهش ضریب تخلخل، قابلیت نفوذ و زاویه تماس، مقدار آب در محیط متخلخل افزایش می یابد. بیشترین تأثیر را قابلیت نفوذ و زاویه تماس داشته، بطوریکه کاهش ضریب نفوذ از 9-10 m2 به m 2 2×10 -14 و زاویه تماس از 140 به 91 درجه، کسر حجمی آب مایع در کاتالیست را به ترتیب از 0/04 به 0/16 (سه برابر) و 0/058 به 0/15 (59%) افزایش می دهد. برای شرایط عملکردی مطالعه شده، یک رابطه برای پیش بینی میزان آب مایع موجود در محیط متخلل بر حسب یک پارامتر که تنها تابعی از جنس محیط متخلل می باشد، ارائه شده است. | ||
| کلیدواژه‌ها | ||
| پیل سوختی غشا پلیمری؛ جریان دوفاز؛ تولید آب مایع؛ روش حجم محدود؛ شبیه‌سازی عددی | ||
| عنوان مقاله [English] | ||
| A parametric investigation of two phase flow in the cathode side of polymer electrolyte membrane fuel cell | ||
| نویسندگان [English] | ||
| peyman havaej؛ Mohammad J. Kermani؛ hadi heidary؛ Mohammadmahdi abdollahzadehsangroudi | ||
| Department of Mechanical Engineering, Amirkabir university of Technology | ||
| چکیده [English] | ||
| In this study, performance of Polymer Electrolyte Membrane fuel cell (PEMFC) was investigated using a 3D transient and two-phase simulation of the cathode side of PEMFC. The governing equations were discretized by finite volume method and solved numerically using an in-house FORTRAN code. A parametric study on the liquid water formation in porous medium and the performance of the PEMFC was conducted. Among effective parameters on the performance of PEMFC, porosity and permeability of porous media, contact angle between water and solid surface, were studied. The results showed that the reduction of porosity, permeability and contact angle increase the content of liquid water in porous media. Permeability and contact angle are the most effective ones in such a way that reduction of permeability and contact angle from to and from 140 to 91 degree, respectively, reduce the average of the liquid water volume fraction (s) in catalyst layer from 0.04 to 0.16 (by factor of 3) and from 0.058 to 0.15 (59%). For the operating condition studied here, a correlation is developed for prediction of the s based on a parameter which is solely function of propreties of the porous media. | ||
| کلیدواژه‌ها [English] | ||
| PEM fuel cell, Two phase flow, Liquid water production, Finite volume method, numerical simulation | ||
|
سایر فایل های مرتبط با مقاله
|
||
| مراجع | ||
|
[1] H. Meng and C.-Y. Wang, “Model of two-phase flow and flooding dynamics in polymer electrolyte fuel cells,” J. Electrochem. Soc., vol. 152, no. 9, pp. A1733–A1741, 2005. [2] H. Ju, C.-Y. Wang, S. Cleghorn, and U. Beuscher, “Nonisothermal modeling of polymer electrolyte fuel cells I. Experimental validation,” J. Electrochem. Soc., vol. 152, no. 8, pp. A1645–A1653, 2005. [3] Q. Dong, M. M. Mench, S. Cleghorn, and U. Beuscher, “Distributed performance of polymer electrolyte fuel cells under low-humidity conditions,” J. Electrochem. Soc., vol. 152, no. 11, pp. A2114–A2122, 2005. [4] E. Carcadea and R. Lazar, “A computational fluid dynamics analysis of a PEM fuel cell system for power generation,” Int. J. Numer. Methods Heat Fluid Flow, vol. 17, no. 3, pp. 302–312, 2006. [5] B. Rismanchi and M. H. Akbari, “Performance prediction of proton exchange membrane fuel cells using a three-dimensional model,” Int. J. Hydrogen Energy, vol. 33, no. 1, pp. 439–448, 2008. [6] K. W. Lum and J. J. McGuirk, “Three-dimensional model of a complete polymer electrolyte membrane fuel cell–model formulation, validation and parametric studies,” J. Power Sources, vol. 143, no. 1, pp. 103–124, 2005. [7] J. E. Dawes, N. S. Hanspal, O. A. Family, and A. Turan, “Three-dimensional CFD modelling of PEM fuel cells: an investigation into the effects of water flooding,” Chem. Eng. Sci., vol. 64, no. 12, pp. 2781–2794, 2009. [8] L. You and H. Liu, “A two-phase flow and transport model for the cathode of PEM fuel cells,” Int. J. Heat Mass Transf., vol. 45, no. 11, pp. 2277–2287, 2002. [9] X. Liu, W. Tao, Z. Li, and Y. He, “Three-dimensional transport model of PEM fuel cell with straight flow channels,” J. Power Sources, vol. 158, no. 1, pp. 25–35, 2006. [10] H. Meng, “A three-dimensional PEM fuel cell model with consistent treatment of water transport in MEA,” J. Power Sources, vol. 162, no. 1, pp. 426–435, 2006. [11] Z. H. Wang, C. Y. Wang, and K. S. Chen, “Two-phase flow and transport in the air cathode of proton exchange membrane fuel cells,” J. Power Sources, vol. 94, no. 1, pp. 40–50, 2001. [12] H. Wu, P. Berg, and X. Li, “Non-isothermal transient modeling of water transport in PEM fuel cells,” J. Power Sources, vol. 165, no. 1, pp. 232–243, 2007. [13] H. Wu, P. Berg, and X. Li, “Steady and unsteady 3D non-isothermal modeling of PEM fuel cells with the effect of non-equilibrium phase transfer,” Appl. Energy, vol. 87, no. 9, pp. 2778–2784, 2010. [14] H. Meng, “Numerical investigation of transient responses of a PEM fuel cell using a two-phase non-isothermal mixed-domain model,” J. Power Sources, vol. 171, no. 2, pp. 738–746, 2007. [15] M. K. Baboli and M. J. Kermani, “A two-dimensional, transient, compressible isothermal and two-phase model for the air-side electrode of PEM fuel cells,” Electrochim. Acta, vol. 53, no. 26, pp. 7644–7654, 2008. [16] X. Liu, G. Lou, and Z. Wen, “Three-dimensional two-phase flow model of proton exchange membrane fuel cell with parallel gas distributors,” J. Power Sources, vol. 195, no. 9, pp. 2764–2773, 2010. [17] C. Qin, D. Rensink, S. Fell, and S. M. Hassanizadeh, “Two-phase flow modeling for the cathode side of a polymer electrolyte fuel cell,” J. Power Sources, vol. 197, pp. 136–144, 2012. [18] N. Khajeh-Hosseini-Dalasm, K. Fushinobu, and K. Okazaki, “Three-dimensional transient two-phase study of the cathode side of a PEM fuel cell,” Int. J. Hydrogen Energy, vol. 35, no. 9, pp. 4234–4246, 2010. [19] H. Meng, “Multi-dimensional liquid water transport in the cathode of a PEM fuel cell with consideration of the micro-porous layer (MPL),” Int. J. Hydrogen Energy, vol. 34, no. 13, pp. 5488–5497, 2009. [20] H. Meng, “A two-phase non-isothermal mixed-domain PEM fuel cell model and its application to two-dimensional simulations,” J. Power Sources, vol. 168, no. 1, pp. 218–228, 2007. [21] T. Berning and N. Djilali, “A 3D, multiphase, multicomponent model of the cathode and anode of a PEM fuel cell,” J. Electrochem. Soc., vol. 150, no. 12, pp. A1589–A1598, 2003. [22] T. E. Springer, T. A. Zawodzinski, and S. Gottesfeld, “Polymer electrolyte fuel cell model,” J. Electrochem. Soc., vol. 138, no. 8, pp. 2334–2342, 1991. [23] S. M. Hassanizadeh and W. G. Gray, “Thermodynamic basis of capillary pressure in porous media,” Water Resour. Res., vol. 29, no. 10, pp. 3389–3405, 1993. [24] U. Pasaogullari and C. Y. Wang, “Liquid water transport in gas diffusion layer of polymer electrolyte fuel cells,” J. Electrochem. Soc., vol. 151, no. 3, pp. A399–A406, 2004. [25] N. P. Siegel, M. W. Ellis, D. J. Nelson, and M. R. Von Spakovsky, “Single domain PEMFC model based on agglomerate catalyst geometry,” J. Power Sources, vol. 115, no. 1, pp. 81–89, 2003. [26] E. A. Ticianelli, C. R. Derouin, A. Redondo, and S. Srinivasan, “Methods to advance technology of proton exchange membrane fuel cells,” J. Electrochem. Soc., vol. 135, no. 9, pp. 2209–2214, 1988. | ||
|
آمار تعداد مشاهده مقاله: 946 تعداد دریافت فایل اصل مقاله: 792 |
||
