A Discrete Modeling Method for Electric Drag Effect of Water Transport in Fuel Cells
A fuel cell water and discretization technology, applied in the fields of fuel cells, fuel cell control, fuel cell additives, etc., can solve the problems of ignoring the electrical drag effect, insufficient fuel cell solution accuracy, affecting the overall reliability of the simulation model, etc. , to achieve the effect of reducing the experimental cost and product development cycle, and promoting the improvement of reliability
Active Publication Date: 2022-07-19
CATARC NEW ENERGY VEHICLE TEST CENT (TIANJIN) CO LTD
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Problems solved by technology
At present, existing simulation studies at home and abroad adopt a simplified processing method when calculating the electric drag effect, that is, the complete electric drag effect is ignored, resulting in insufficient accuracy of the solution for the water transfer process inside the fuel cell, which affects the overall reliability of the simulation model
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[0066] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.
[0067] The specific steps of the inventive method will be described below through specific calculation embodiments in conjunction with the accompanying drawings.
[0068] figure 1 A schematic diagram of the discretization processing of the discrete modeling method for the electric drag effect of fuel cell water transmission according to the embodiment of the present application;
[0069] from the attached figure 1 It can ...
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Abstract
The present application proposes a discrete modeling method for the electric drag effect of water transport in fuel cells, which includes the following steps: establishing a membrane water transport equation inside the fuel cell, discretizing the complete electric drag effect, and processing As a result, a complete discrete simulation model of the electrical drag effect was obtained, the membrane water transport equation was solved, and a discrete simulation model of the electrical drag effect of fuel cell water transport was established. The discrete modeling method for the electrical drag effect of fuel cell water transport described in this application performs discretization processing and numerical calculation on the complete electrical drag effect, including the water transport part caused by the membrane water content gradient. As well as the water transport part caused by the proton transport flux gradient, it makes up for the shortcomings of the existing simulation models that ignore the latter, which leads to the lack of accuracy in solving the internal water transport process of the fuel cell, and promotes the improvement of the reliability of the fuel cell simulation technology. Greatly reduce the experimental cost and product development cycle.
Description
technical field [0001] The present application belongs to the field of proton exchange membrane fuel cells, and in particular relates to a discrete modeling method for the electric drag effect of water transport in fuel cells. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a device that converts chemical energy into electrical energy through an electrochemical reaction. It has the advantages of high energy conversion efficiency, low operating temperature, zero noise, and zero emissions. One of the most promising clean power sources in the transportation industry. [0003] The hydrogen enters the fuel cell from the inlet of the anode flow channel, and then passes through the porous medium layer to the three-phase reaction interface of the catalytic layer, where the hydrogen is converted into protons and electrons. Protons can move directly in the proton exchange membrane while electrons can only move through an external circuit. Oxygen (or air) ...
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IPC IPC(8): G06F30/28H01M8/04298
CPCG06F30/28H01M8/04305Y02E60/50G06F2113/08H01M2008/1095H01M8/04291
Inventor 杨子荣郝冬张妍懿王晓兵陈光焦道宽李岩王睿迪
Owner CATARC NEW ENERGY VEHICLE TEST CENT (TIANJIN) CO LTD
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