Numerical simulation method of planar solid oxide fuel cells

Abstract

The invention discloses a numerical simulation method of planar solid oxide fuel cells. The method includes the steps that 1, performance parameters of planar solid oxide fuel cells are globally defined; 2, 3D simulation models of planar solid oxide fuel cells are established according to geometric dimensions of cells inside a battery pack, physical fields are selected for the 3D simulation models as required, known parameters are input to the physical fields, and 3D simulation models with physical field parameters are obtained; 3, mesh generation is conducted on the 3D simulation models with the physical field parameters, stable-state solving is then conducted, stable-state operational data is obtained, post-processing is conducted on the stable-state operational data, and the required condition curves or 3D images are obtained. According to the method, parameterized structural design is conducted on SOFC, rapid modeling is achieved, and the efficiency of SOFC optimization design is improved.

Description

technical field [0001] The invention belongs to the field of fuel cells, and more specifically relates to a numerical simulation method of a flat solid oxide fuel cell. Background technique [0002] A fuel cell is an efficient and environmentally friendly power generation device that directly converts chemical energy stored in fuel and oxidant into electricity. Among them, the solid oxide fuel cell (SOFC) does not require expensive metal catalysts and fuel pretreatment, has only gas-solid two-phase, simple working principle, etc., and is known as one of the most promising fuel cells. However, the experimental cost of solid oxide fuel cell is too high, the cycle time is long, and it is easily affected by experimental equipment, which restricts the research progress of SOFC. Numerical simulation method is low in cost and high in efficiency, and it can optimize the design and analysis of SOFC from multiple aspects such as operating parameters, structural design, and material p...

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a numerical simulation method of a flat solid oxide fuel cell, which aims to solve the problem of complex modeling of SOFC, cumbersome preparation of UDF files, and relatively long solution time in the traditional simulation process. A series of problems such as long and long, the specific simulation process is simple, the simulation is fast, etc.

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