Experimental Study on Improvement of Performance by Wave Form Cathode Channels in a PEM Fuel Cell

Byun, Sun-Joon; Wang, Zhen Huan; Son, Jun Woo; Kwak, Dong-Kurl; Kwon, Young Ho

doi:10.3390/en11020319

Cited by 13 publications

(5 citation statements)

References 18 publications

(18 reference statements)

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“…There would be the best performance if the slope angle is 30 • or 45 • . Further design of the waveform structure was proposed by Byun et al [16]. The distance and size of the waveform structures were changed.…”

Section: Introductionmentioning

confidence: 99%

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Research about two‐step channel with lateral narrowing structures in the flow mass transfer of proton exchange membrane fuel cell

Wang

Lin

et al. 2022

Fuel Cells

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Proton exchange membrane fuel cell (PEMFC) is a new energy device with wide application prospects. The design of its flow field is one of the effective methods to improve its performance. As key parameters of the PEMFC, mass transport is directly dependent on these channels in flow fields. To enhance the mass transport in the channel, some simple two‐step structures with forced convection are proposed in previous research. But the convections formed by these simple structures are only in one direction. Compared to the complex flow behaviors of the gas in PEMFC, these one‐direction convections are not enough. Then the more comprehensive dimensional convections are made by a new kind of two‐step structure with lateral narrowing. The mathematical model of the new‐designed PEMFC is simulated by the Fluent module in the computational fluid dynamics software ANSYS. Compared with the parallel‐straight‐flow channel, the current density of the new channel proposed in this paper can be increased by 12.5%.

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Section: Introductionmentioning

confidence: 99%

“…Further design of the waveform structure was proposed by Byun et al. [16]. The distance and size of the waveform structures were changed.…”

Section: Introductionmentioning

confidence: 99%

Research about two‐step channel with lateral narrowing structures in the flow mass transfer of proton exchange membrane fuel cell

Wang

Lin

et al. 2022

Fuel Cells

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“…Effective management of water produced as a product of Oxygen Reduction Reaction (ORR) on the cathode side is important to obtain maximum performance from PEMFC [ 1 ]. The cell performance is reduced due to the water flooding which effectively blocks the passage of protons through the membrane [ 2 ]. Increase in flooding of flow fields causes reduced performance in PEMFC at higher current densities.…”

Section: Introductionmentioning

confidence: 99%

Scaling up Studies on PEMFC Using a Modified Serpentine Flow Field Incorporating Porous Sponge Inserts to Observe Water Molecules

Marappan¹,

Narayanan²,

Manoharan

et al. 2021

Molecules

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Flooding of the cathode flow channel is a major hindrance in achieving maximum performance from Proton Exchange Membrane Fuel Cells (PEMFC) during the scaling up process. Water accumulated between the interface region of Gas Diffusion Layer (GDL) and rib of the cathode flow field can be removed by the use of Porous Sponge Inserts (PSI) on the ribs. In the present work, the experimental investigations are carried out on PEMFC for the various reaction areas, namely 25, 50 and 100 cm2. Stoichiometry value of 2 is maintained for all experiments to avoid variations in power density obtained due to differences in fuel utilization. The experiments include two flow fields, namely Serpentine Flow Field (SFF) and Modified Serpentine with Staggered provisions of 4 mm PSI (4 mm × 2 mm × 2 mm) Flow Field (MSSFF). The peak power densities obtained on MSSFF are 0.420 W/cm2, 0.298 W/cm2 and 0.232 W/cm2 compared to SFF which yields 0.242 W/cm2, 0.213 W/cm2 and 0.171 W/cm2 for reaction areas of 25, 50 and 100 cm2 respectively. Further, the reliability of experimental results is verified for SFF and MSSFF on 25 cm2 PEMFC by using Electrochemical Impedance Spectroscopy (EIS). The use of 4 mm PSI is found to improve the performance of PEMFC through the better water management.

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“…Therefore, PEMFCs are ideally suited for a wide range of applications, such as stationary, automotive, and portable power supplies. However, despite the sundry features of the PEMFCs, cost reduction and efficiency improvement are needed to overcome the limited market of fuel cells' technologies [9,10]. The high cost of PEMFCs may have been the fundamental hindrance in the past, but with the development of technology, this may have not been the case.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Implementation of a Super Twisting Algorithm for PEM Fuel Cell Power System

et al. 2019

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Proton exchange membrane fuel cell (PEMFC) topology is becoming one of the most reliable and promising alternative resource of energy for a wide range of applications. However, efficiency improvement and lifespan extension are needed to overcome the limited market of fuel cell technologies. In this paper, an efficient approach based on a super-twising algorithm (STA) is proposed for the PEMFC system. The control objective is to lengthen the fuel cell lifetime by improving its power quality, as well as to keep the system operating at an optimal and efficient power point. The algorithm adjusts the PEMFC operating point to the optimum power by tuning the duty cycle of the boost converter. The closed-loop system includes the Heliocentris hy-ExpertTM PEMFC, DC–DC boost converter, DSPACE DS1104, dedicated PC, and a programmable electronic load. The practical implementation of the proposed STA on a hardware setup is performed using a dSPACE real-time digital control platform. The data acquisition and the control system are conducted together with the dSPACE 1104 controller board. To demonstrate the performance of the proposed algorithm, experimental results are compared with 1-order sliding mode control (SMC) under different load resistance. The obtained results demonstrate the validity of the proposed control scheme by ensuring at least 72% of the maximum power produced by PEMFC. In addition, it is proven that the STA ensures all the fundamental properties of the 1-order SMC, as well as providing chattering reduction of 91%, which will ameliorate as a consequence the fuel cell lifetime.

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Experimental Study on Improvement of Performance by Wave Form Cathode Channels in a PEM Fuel Cell

Cited by 13 publications

References 18 publications

Research about two‐step channel with lateral narrowing structures in the flow mass transfer of proton exchange membrane fuel cell

Research about two‐step channel with lateral narrowing structures in the flow mass transfer of proton exchange membrane fuel cell

Scaling up Studies on PEMFC Using a Modified Serpentine Flow Field Incorporating Porous Sponge Inserts to Observe Water Molecules

Real-Time Implementation of a Super Twisting Algorithm for PEM Fuel Cell Power System

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