CFD Investigation of a PEMFC Stack Assembly

Proton Exchange ◽

Pt Catalyst ◽

Cfd Modeling ◽

Software Module ◽

Contour Plots ◽

Set Up ◽

Voltage Performance ◽

Abstract In this study 3-D CFD modeling of a cylindrical stack Proton-exchange membrane fuel cell (PEMFC) is provided. The H2O-O2 PEMFC uses a 10.8 mm2 area membrane and Platinum (Pt) catalyst. The paper presents the methodology for the PEMFC commercial software module, the set-up of the Computational Fluid Dynamics (CFD) geometry, mesh and boundary conditions. Results for the current-voltage performance curves and 3-D contour plots of the fluid, heat and species concentrations within the PEMFC are given. Results are presented for a low-temperature fuel cell using NAFION membrane and a high-temperature fuel cell using BZY membrane.

Optimization of blocked channel design for a proton exchange membrane fuel cell by coupled genetic algorithm and three-dimensional CFD modeling

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2020.04.166 ◽

2020 ◽

Vol 45 (35) ◽

pp. 17759-17770 ◽

Cited By ~ 3

Author(s):

Wei-Zhuo Li ◽

Wei-Wei Yang ◽

Ning Wang ◽

Yu-Hang Jiao ◽

Yu Yang ◽

...

Keyword(s):

Genetic Algorithm ◽

Fuel Cell ◽

Three Dimensional ◽

Proton Exchange ◽

Cfd Modeling ◽

Channel Design ◽

Analysis of the Co-Generation Potential of a 5 kW PEMFC From Experimentally Determined Performance Data

2nd International Conference on Fuel Cell Science, Engineering and Technology ◽

10.1115/fuelcell2004-2479 ◽

2004 ◽

Author(s):

L. G. Do Val ◽

A. F. Orlando ◽

C. E. R. Siqueira ◽

J. Oexmann

Keyword(s):

Fuel Cell ◽

Proton Exchange ◽

Total Efficiency ◽

Fuel Processor ◽

A Value ◽

Cell Energy ◽

Set Up ◽

Energy Balances ◽

A 5 kW proton exchange membrane fuel cell (PEMFC) with a reformer has been installed and tested at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil, aiming the experimental determination of its performance and co-generation potential to increase the fuel chemical energy usage. The unit uses a fuel processor to convert energy from natural gas into hydrogen rich reformate. The fuel cell is totally instrumented, supplying data for calculating the overall system efficiency (total efficiency), reformer efficiency, stack efficiency, conversion efficiency (DC/AC), and co-generation potential, at previously set up output powers of 2,5 kW and 4 kW. The paper details the equations required for calculating the parameters, both theoretically, from thermodynamics and electrochemics points of view, and experimentally, from mass and energy balances, comparing the results. Steady state data were taken at 13 different days, resulting in reformer, stack, conversion and total average efficiencies, together with the calculated standard deviation. It was also found that the energy loss in the reformer and in the stack are approximately the same. The co-generation potential was estimated by calculating the heat rejected by the stack and the heat rejected in the reformer, giving a value of 67,5% and 68,9%, respectively for 2,5 kW and 4 kW. Therefore, co-generation can substantially reduce the fuel cell energy cost, and thus increasing the feasibility of its use.

Preparation and Performance Study of an Unsupported Pt Catalyst for Proton Exchange Membrane Fuel Cell

ECS Meeting Abstracts ◽

10.1149/ma2015-01/26/1590 ◽

2015 ◽

Keyword(s):

Fuel Cell ◽

Proton Exchange ◽

Pt Catalyst ◽

Performance Study ◽

And Performance ◽

Volume 5: Energy Systems Analysis, Thermodynamics and Sustainability; NanoEngineering for Energy; Engineering to Address Climate Change, Parts A and B ◽

An Experimental Study of Operational Parameters on the Performance of PEMFCs

10.1115/imece2010-39080 ◽

2010 ◽

Author(s):

Emad G. Barakat ◽

Ali K. Abdel-Rahman ◽

Mahmoud A. Ahmed ◽

Ahmed Hamza H. Ali

Keyword(s):

Fuel Cell ◽

Proton Exchange ◽

Operating Pressure ◽

Operational Parameters ◽

Cell Temperature ◽

Power Increase ◽

Set Up ◽

Exchange Membrane ◽

Gas Humidification

The performance of Proton exchange membrane fuel cell (PEMFC) has been experimentally investigated. An experimental set-up was designed to study the effects of operating parameters such as cell temperature, gas humidification, and cell operating pressure on the performance of fuel cell. The results indicated that the output power increase with the increase of humidification ratio. Furthermore, an increase of cell pressure results in a significant increase of cell power. The results indicated that increasing of the temperature leads to a decrease of cell power. The results are explained and discussed in more details for different operational parameters.

Polyaniline Based Pt-Electrocatalyst for a Proton Exchanged Membrane Fuel Cell

Polymers ◽

10.3390/polym12030617 ◽

2020 ◽

Vol 12 (3) ◽

pp. 617 ◽

Cited By ~ 1

Author(s):

Wen-Yao Huang ◽

Mei-Ying Chang ◽

Yen-Zen Wang ◽

Yu-Chang Huang ◽

Ko-Shan Ho ◽

...

Keyword(s):

Fuel Cell ◽

Pt Nanoparticles ◽

Reduction Reaction ◽

Proton Exchange ◽

Pt Catalyst ◽

Emeraldine Base ◽

Cyclic Voltammograms ◽

Typical Type ◽

Calcination reduction reaction is used to prepare Pt/EB (emeraldine base)-XC72 (Vulcan carbon black) composites as the cathode material of a proton exchange membrane fuel cell (PEMFC). The EB-XC72 core-shell composite obtained from directly polymerizing aniline on XC72 particles is able to chelate and capture the Pt-ions before calcination. X-ray diffraction spectra demonstrate Pt particles are successfully obtained on the EB-XC72 when the calcined temperature is higher than 600 °C. Micrographs of TEM and SEM illustrate the affluent, Pt nanoparticles are uniformly distributed on EB-XC72 at 800 °C (Pt/EB-XC72/800). More Pt is deposited on Pt/EB-XC72 composite as temperatures are higher than 600 °C. The Pt/EB-XC72/800 catalyst demonstrates typical type of a cyclic voltammograms (C-V) curve of a Pt-catalyst with clear Pt–H oxidation and Pt–O reduction peaks. The highest number of transferred electrons during ORR approaches 3.88 for Pt/EB-XC72/800. The maximum power density of the single cell based on Pt/EB-XC72/800 reaches 550 mW cm−2.

OXYGEN REDUCTION REACTION BEHAVIOURS OF CARBON NANOTUBES SUPPORTING Pt CATALYST FOR PROTON EXCHANGE MEMBRANE FUEL CELL

Malaysian Journal of Analytical Science ◽

10.17576/mjas-2019-2301-18 ◽

2019 ◽

Vol 23 (1) ◽

Keyword(s):

Carbon Nanotubes ◽

Fuel Cell ◽

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Reduction Reaction ◽

Proton Exchange ◽

Pt Catalyst ◽

Synthesis of nano-carbon by in-liquid plasma method and its application to a support material of Pt catalyst for fuel cell

Nanomaterials and Nanotechnology ◽

10.1177/1847980419853159 ◽

2019 ◽

Vol 9 ◽

pp. 184798041985315 ◽

Cited By ~ 3

Author(s):

Abdulrahman Alsaeedi ◽

Yoshiyuki Show

Keyword(s):

Fuel Cell ◽

Maximum Output Power ◽

Proton Exchange ◽

Pt Catalyst ◽

Maximum Output ◽

Support Material ◽

Transmission Electron ◽

Nano Carbon ◽

One of the applications of nano-carbon is a support material of platinum (Pt) catalyst for fuel cells. In this study, the nano-carbon was successfully synthesized by in-liquid plasma in ethanol. The synthesized nano-carbon was characterized by the transmission electron microscope and the Raman spectroscopy. Moreover, the nano-carbon was applied to a support material of Pt catalyst for a proton exchange membrane fuel cell. The formation of the Pt particles on the nano-carbon was also carried out using the in-liquid plasma. The formed Pt/nano-carbon worked as a catalyst of the fuel cell. The fuel cell, fabricated with the Pt/nano-carbon catalyst, generated the maximum output power of 580 mW.