Development of 500 W PEM fuel cell stack for portable power generators

Date

2015-06-29

Author

DEVRİM, YILSER
Devrim, Huseyin
Eroğlu, İnci

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

331
views

0
downloads

Polymer Electrolyte Membrane Fuel Cell (PEMFC) portable power generators are gaining importance in emergency applications. In this study, an air-cooled PEMFC stack was designed and fabricated for net 500 W power output. Gas Diffusion Electrodes (GDE's) were manufactured by ultrasonic spray coating technique. Stack design was based on electrochemical data obtained at 0.60 V was 0.5 A/cm(2) from performance tests of a single cell having the same membrane electrode assemblies (MEA) that had an active area of 100 cm(2). Graphite bipolar plates were designed and machined by serpentines type flow. The stack comprising of 24 cells was assembled with external fixing plates. The stack temperature was effectively regulated by the cooling fan based on on-off control system. A maximum power of 647 W was obtained from the stack. The PEMFC stack was stable during start-up and shutdown cycling testing for 7 days at 65 degrees C in H-2/air at a constant cell voltage. Copyright (c) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Subject Keywords

Proton exchange membrane, PEM fuel cell, Stack, Fuel cell system, MEA

URI

https://hdl.handle.net/11511/56355

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

DOI

https://doi.org/10.1016/j.ijhydene.2015.02.005

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Investigation of temperature profile in high temperature PEM fuel cell Çağlayan, Dilara Gülçin; Eroğlu, İnci; Devrim, Yılser; Department of Chemical Engineering (2016) High temperature polymer electrolyte membrane fuel cells (HT-PEMFC) are promising alternative energy sources for the future. As an advantageous tool in the design of a system, modeling requires less time compared to the experiments as well as its low cost. This study includes both isothermal and non-isothermal three-dimensional mathematical models for a HT-PEMFC having an active area of 25 cm2. Governing equations are solved by using Comsol Multiphysics 5.0 “Batteries & Fuel Cells” module, which is a commer...
PEM fuel cell short stack performances of silica doped nanocomposite membranes DEVRİM, YILSER; Devrim, Huseyin (2015-06-29) In this study, an air-cooled Proton Exchange Membrane Fuel Cell (PEMFC) short stack with Nafion/Silica nanocomposite membrane was designed and fabricated for net 100 W net power output to improve the stack performance at low relative humidity conditions. Composite membrane was prepared by solution casting method. Gas Diffusion Electrodes (GDE's) were produced by ultrasonic spray coating technique. Short stack design was based on electrochemical data obtained at 0.60 V was 0.45 A/cm(2) from performance tests...
Modeling of a high temperature PEM fuel cell Sezgin, Berna; Eroğlu, İnci; Devrim, Yılser; Department of Chemical Engineering (2016) High temperature polymer electrolyte membrane fuel cells (HT-PEMFC) are considered as the next generation of fuel cells since high temperature operation for PEM fuel cells has several advantages such as single phase operation, high carbon monoxide tolerance, low or zero carbon emission and removal of some equipment from the system. In order to obtain high performances, HT-PEMFC systems should be optimized in terms of dimensions, materials, operating conditions and other parameters. Modeling can help to pre-...
Numerical investigation of a stand alone solar hydrogen energy system effects of PEFC degradation Ender, Ozden; Tarı, İlker (null; 2015-08-12) An existing stand-alone solar energy system producing hydrogen for energy storage is numerically investigated focusing on the degradation of Polymer Electrolyte Fuel Cell (PEFC) and its effects on the overall performance of the system. The system consists of Photovoltaic (PV) panels, polymer electrolyte based electrolyzers, H2 and O2 storage tanks and a commercial PEFC stack. A PEFC is numerically investigated both as new and as degraded (for about two years). Using a variety of observed degradation pattern...
Development of self-humidifying nano-composite membrane for polymer electrolyte membrane fuel cell Çaçan, Umut Baki; Özkan, Necati; Devrim, Yılser; Department of Polymer Science and Technology (2015) Low humidity self-humidifying nano-composite membrane electrode assemblies (MEA) were developed for Polymer Electrolyte Membrane Fuel Cell (PEMFC) working at elevated temperatures. The nano-composite membranes were prepared by adding nano-sized silica particles (SiO2) or inorganic fillers with a size of approximately 20 nm to a polymeric material which is commercially named as Nafion (Perfluoro Sulfonic Acid/PFSA). The particle content of the nano-composite membranes were between 2.5 – 10 wt. %. In this man...

Citation Formats

Y. DEVRİM, H. Devrim, and İ. Eroğlu, “Development of 500 W PEM fuel cell stack for portable power generators,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 7707–7719, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56355.