scholarly journals PEFC System Reactant Gas Supply Management and Anode Purging Strategy: An Experimental Approach

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 288
Author(s):  
Naseruddin Khan ◽  
Yousif Al-Sagheer ◽  
Robert Steinberger-Wilckens
Keyword(s):  
Fuel Cell ◽  
Experimental Approach ◽  
Experimental Studies ◽  
Polymer Electrolyte Fuel Cell ◽  
Anode Side ◽  
Experimental Modelling ◽  
Balance Of Plant ◽  
Air Blower ◽  
Hydrogen Anode ◽  
Gas Supply

In this report, a 5 kW PEFC system running on dry hydrogen with an appropriately sized Balance of Plant (BoP) was used to conduct experimental studies and analyses of gas supply subsystems. The improper rating and use of BoP components has been found to increase parasitic loads, which consequently has a direct effect on the polymer electrolyte fuel cell (PEFC) system efficiency. Therefore, the minimisation of parasitic loads while maintaining desired performance is crucial. Nevertheless, little has been found in the literature regarding experimental work on large stacks and BoP, with the majority of papers concentrating on modelling. A particular interest of our study was the anode side of the fuel cell. Additionally the rationale behind the use of hydrogen anode recirculation was scrutinised, and a novel anode purging strategy was developed and implemented. Through experimental modelling, the use of cathode air blower was minimised since it was found to be the biggest contributor to the parasitic loads.

Analysis of the Membrane Humidifier Fault Modes and Its Effects on the Performance of PEMFC

2010 ◽  
Author(s):  
Sung Il Kim ◽  
Beom Jun Kim ◽  
Jong Won Choi ◽  
Min Soo Kim
Keyword(s):  
Fuel Cell ◽  
High Efficiency ◽  
Polymer Electrolyte Membrane ◽  
Experimental Studies ◽  
Heat Management ◽  
Heating Source ◽  
Electrolyte Membrane ◽  
Balance Of Plant ◽  
Need To Evaluate ◽  
Air Blower

Polymer electrolyte membrane fuel cell is one of the most promising energy sources in the future because of its high efficiency and eco friendly property. However, there are several problems to solve in order to commercialize the PEM fuel cell such as heat management, cold start and humidification. Many researchers and companies try to improve the performance of the fuel cell, so the performance of PEMFC is getting better. Another important problem to improve in PEMFC is durability. Durability can be one of the most important factors to commercialize the PEMFC. Usually products produced by companies using fuel cell consist of several parts such as humidifier, heating source, air blower and so on. Usually it is called balance of plant and in order to operate it proper, each part of BOP should operate in a right way. When one part of BOP is fault, the performance of PEMFC can be decreased and the amount of decreased power sometimes can not be large because it is very small amounts. However, the effects of the fault can destroy another part of BOP, so detecting the fault of BOP is very important work. In this study, numerical analysis about the membrane humidifier performed by assuming several fault modes and the performances were recorded. Membrane humidifier using in automobile and vibration, shock from the outer condition can make humidifier malfunction. Various fault modes of membrane humidifier were considered and its effect on performance was portrayed by power curve and I-V curve. The results of this simulation showed that the good performance of membrane humidifier is important factor to get more power from PEMFC and some experimental studies are need to evaluate this simulation result.

scholarly journals 1216 Analysis of Liquid Flow in the Anode-side Passage of a Direct Ethanol Polymer Electrolyte Fuel Cell

2005 ◽  
Vol 2005.80 (0) ◽  
pp. _12-31_-_12-32_ ◽  
Author(s):  
Satoshi TANINAKA ◽  
Toshinaga ISHII ◽  
Yogo TAKADA ◽  
Tomoyuki WAKISAKA
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Liquid Flow ◽  
Polymer Electrolyte Fuel Cell ◽  
Anode Side

Complex Impedance Measurements on the Steady State Behaviors of a 10-cell PEFC Stack

2014 ◽  
Vol 5 (1) ◽  
pp. 742-751
Author(s):  
Seiji Yoneda ◽  
Yoshihiro Ohno
Keyword(s):  
Steady State ◽  
Fuel Cell ◽  
Experimental Studies ◽  
Complex Impedance ◽  
Frequency Measurement ◽  
Polymer Electrolyte Fuel Cell ◽  
Impedance Measurements ◽  
Frequency Responses ◽  
Dc Current ◽  
Frequency Properties

Experimental studies on the behavior of a Polymer Electrolyte Fuel Cell (PEFC) stack were conducted by performing complex impedance measurements. Initially, the steady state characteristics of a 10-cell stack were measured, and the power function of the DC current was obtained to represent these characteristics. The frequency properties of the complex impedance apparatus were investigated in order to clarify the limitations of frequency measurement. The components of complex impedance, the real and imaginary parts, were rearranged into two vectors to analyze their frequency responses to power and output DC current.

scholarly journals Development of a polymer electrolyte fuel cell dead-ended anode purge strategy for use with a nitrogen-containing hydrogen gas supply

2017 ◽  
Vol 42 (19) ◽  
pp. 13850-13859 ◽  
Author(s):  
Tonny I. Okedi ◽  
Quentin Meyer ◽  
Hazel M.A. Hunter ◽  
Paul R. Shearing ◽  
Dan J.L. Brett
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Hydrogen Gas ◽  
Polymer Electrolyte Fuel Cell ◽  
Gas Supply

Development of small polymer electrolyte fuel cell stacks

1996 ◽  
Author(s):  
V A Paganin ◽  
E A Ticianelli ◽  
E R Gonzalez
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell

scholarly journals H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shofu Matsuda ◽  
Yuuki Niitsuma ◽  
Yuta Yoshida ◽  
Minoru Umeda
Keyword(s):  
Fuel Cell ◽  
Electric Power ◽  
Polymer Electrolyte ◽  
Carbon Capture ◽  
Polymer Electrolyte Fuel Cell ◽  
Cell Temperature ◽  
Faradaic Efficiency ◽  
Carbon Capture And Utilization ◽  
Electrode Potentials ◽  
A Cell

AbstractGenerating electric power using CO2 as a reactant is challenging because the electroreduction of CO2 usually requires a large overpotential. Herein, we report the design and development of a polymer electrolyte fuel cell driven by feeding H2 and CO2 to the anode (Pt/C) and cathode (Pt0.8Ru0.2/C), respectively, based on their theoretical electrode potentials. Pt–Ru/C is a promising electrocatalysts for CO2 reduction at a low overpotential; consequently, CH4 is continuously produced through CO2 reduction with an enhanced faradaic efficiency (18.2%) and without an overpotential (at 0.20 V vs. RHE) was achieved when dilute CO2 is fed at a cell temperature of 40 °C. Significantly, the cell generated electric power (0.14 mW cm−2) while simultaneously yielding CH4 at 86.3 μmol g−1 h−1. These results show that a H2-CO2 fuel cell is a promising technology for promoting the carbon capture and utilization (CCU) strategy.

scholarly journals Effect of Pt and Ionomer Distribution on Polymer Electrolyte Fuel Cell Performance and Durability

2021 ◽  
Vol 4 (3) ◽  
pp. 2307-2317
Author(s):  
Aki Kobayashi ◽  
Takahiro Fujii ◽  
Chie Harada ◽  
Eiichi Yasumoto ◽  
Kenyu Takeda ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Cell Performance ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Performance
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