A New Numerical Study Method of Thermal Stress Distribution and Tortuosity Effectiveness in an Anode Porous Electrode for a Planar Solid Oxide Fuel Cell

Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
View: 408

This Paper With 15 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_JSMA-12-1_016

تاریخ نمایه سازی: 27 فروردین 1399

Abstract:

A fuel cell is an electro-chemical tool capable of converting chemical energy into electricity. High operating temperature of solid oxide fuel cell, between 700oC to 1000oC, causes thermal stress. Thermal stress causes gas escape, structure variability and cease operation of the SOFC before its lifetime.The purpose of the current paper is to present a method that predicts the thermal stress distribution in an anisotropic porous anode of planar SOFC. The coupled governing non-linear differential equations, heat transfer, fluid flow, mass transfer, mass continuity, and momentum are solved numerically. A code based on computational fluid dynamics (CFD), computational structural mechanics and finite element method (FEM) is developed and utilized. The code uses the generated data inside the porous anode in order to detect the temperature and the stress distribution using the Darcy’s law and the Navier-Stokes equations. The numerical results used to govern the areas of high values of stresses were higher than the yield strength of materials. The results show that a highest thermal stress occurs at lower corners of the anode. The concentrated temperature occurs at the middle of the electrolyte-anode whereas the maximum pressure occurs at the middle of the upper and lower section of the anode.

Authors

I.E Fahs

Mechanical Engineering Faculty, K. N. Toosi University of Technology, Tehran, Iran

M Ghasemi

Mechanical Engineering Faculty, K. N. Toosi University of Technology, Tehran, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • Hoogers G., 2003, Fuel Cell Technology Handbook, CRC Press, Boca ...
  • Hibino T., 2002, High Performance Anodes for SOFCs Operating in ...
  • Zhu H., 2005, Modeling elementary heterogeneous chemistry and electrochemistry in ...
  • Greco F., 2014, Modelling the impact of creep on the ...
  • Peksen M., 2015, Numerical thermomechanical modelling of solid oxide fuel ...
  • Boccaccini D.N., 2016, Investigation of the bonding strength and bonding ...
  • Min X., 2016, Solid oxide fuel cell interconnect design optimization ...
  • Fleischhauer F., 2015, Fracture toughness and strength distribution at room ...
  • Kamvar M., 2016, Effect of catalyst layer configuration on single ...
  • Pianko-Oprych P., 2016, A numerical investigation of the thermal stresses ...
  • Pasaogullari U., Wang C.Y., 2003, Computational fluid dynamics modeling of ...
  • Petruzzi L., 2003, A global thermo electrochemical model for SOFC ...
  • Recknagle K.P., 2003, Three-dimensional thermo-fluid electrochemical modeling of planar SOFC ...
  • Janardhanan V.M., Deutschmann O., 2006, CFD analysis of a solid ...
  • Klein J.M., 2007, Modeling of a SOFC fuelled by methane: ...
  • Li P.W., Chyu M.K., 2003, Simulation of the chemical/electrochemical reactions ...
  • Suwanwarangkul R., 2006, Mechanistic modelling of a cathode-supported tubular solid ...
  • Celik S., 2015, Micro level two dimensional stress and thermal ...
  • Luo Y., Jiang W., 2016, Effects of anode porosity on ...
  • Ho T.X., 2010, Effects of heat sources on the performance ...
  • Bove R., Ubertini S., 2008, Modeling Solid Oxide Fuel Cells, ...
  • Singh P., Bansal P., 2008, Advances in Solid Oxide Fuel ...
  • Ho T.X. 2010, Effects of heat sources on the performance ...
  • Nehter P., 2008, Theoretical Analysis of High Fuel Utilization Solid ...
  • Larminie J., Dicks A., 2003, Fuel Cell Systems Explained, John ...
  • Akhtar N. 2009, A three dimensional numerical model of a ...
  • Milewski J., 2011, Advanced Methods of Solid Oxide Fuel Cell ...
  • Boley B.A., Weiner J.H., 1997, Fuel Theory of Thermal Stresses, ...
  • Hetnarski R.B., Eslami M.R., 2008, Thermal Stress: Advanced in Theory, ...
  • Rogers W. 2003, Validation and application of a CFD-Based model ...
  • Hussain M.M. 2006, Mathematical modeling of planar solid oxide fuel ...
  • Shao Q., 2016, Influence of fluid flow and heat transfer ...
  • Shao Q., 2015, An advanced numerical model for energy conversion ...
  • نمایش کامل مراجع