Investigating the effect of start-up and shut-down cycles on the performance of the proton exchange membrane fuel cell by segmented cell technology

Lin, Rui; Cui, Xin; Jing, Shan; Técher, L.; Xiong, Feng; Zhang, Q.

doi:10.1016/j.ijhydene.2015.09.042

Cited by 56 publications

(20 citation statements)

References 29 publications

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“…During the processes of startup and shutdown, over voltages appear due to reverse current between cathode and anode in the presence of air in one of the electrodes. This problem causes the oxidation of carbon (CO 2 ) in the bipolar plates, decreasing catalyst surface due to platinum-CO 2 reactions, resulting in increasing of mass transport losses [118][119][120][121][122][123][124][125][126]. In case of load changes, a non-uniform temperature distribution can appear over the membrane and the catalyst surface, which may cause similar problems as start-stop cycles [17,118,121,123].…”

Section: Hydrogen Resourcementioning

confidence: 99%

A review of energy management strategies for renewable hybrid energy systems with hydrogen backup

Vivas

Heras

Segura

et al. 2018

Renewable and Sustainable Energy Reviews

218

106

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Hybrid systems are presented as a viable, safe and effective solution to minimize the associated problems of the dependence on renewable energies with the environmental resources. In this way different renewable systems such as photovoltaic, wind, hydrogen and so on, can work together to configure hybrid renewable systems. However, to make them work properly in a holistic way by creating synergies among them is not an easy task. Recently hydrogen technology has appeared as a promising technology to hybridize renewable energy systems, since it allows the generation (by electrolyzers) and storage of hydrogen when there is a surplus of energy in the system, and at a later time (e.g. when there are insufficient renewable resources available) using the stored hydrogen to generate electrical energy by fuel cells. The choice of a correct energy management strategy should guarantee an optimum performance of the whole hybrid renewable system; therefore, it is necessary to know the most important criteria in order to define a management strategy that ensures the best solution from a technical and economic point of view. This paper presents a critical review and analysis of different energy management strategies for hybrid renewable systems based on hydrogen backup. In the same way, a review is also presented of the most important technical and economic optimization criteria, as well as problems and solutions studied in the scientific literature.

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Section: Hydrogen Resourcementioning

confidence: 99%

A review of energy management strategies for renewable hybrid energy systems with hydrogen backup

Vivas

Heras

Segura

et al. 2018

Renewable and Sustainable Energy Reviews

218

106

View full text Add to dashboard Cite

show abstract

“…The top and back layers of the board were connected with each other by conducting wires and the layer which was in contact with the Membrane Electrolyte Assembly (MEA) was divided into segments to avoid lateral conduction [17]. In order to keep the MEA, the gaskets and the PCB in good contact, clamping pressure of 30 bars was provided by compressor [18].…”

Section: Local Current Density Distributionmentioning

confidence: 99%

The application of orthogonal test method in the parameters optimization of PEMFC under steady working condition

Xia

Lin

Cui

et al. 2016

International Journal of Hydrogen Energy

111

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“…5. The sudden decrease observed after 100 cycles at high current densities may be caused by mass transport limitations, since PEMFC requires a higher active surface area to meet the demand of the chemical reactions compared to low current densities [32]. Kim et al also reported that full humidification may lead to excess water that blocks the electrode surface area and subsequently results in temporary reactants' starvation [27].…”

Section: Overall Performancementioning

confidence: 99%

Behavioural study of PEMFC during start-up/shutdown cycling for aeronautic applications

Dyantyi

Parsons

Bujło

et al. 2019

Mater Renew Sustain Energy

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The deployment of proton exchange membrane fuel cell (PEMFC) for aeronautic applications is a value-added energy supply alternative that not only generates useful byproducts (oxygen-depleted air, water and heat) but addresses sensitive issues such as improving health conditions of airport personnel (silent operation minimizes noise) and decreasing greenhouse gas emission (in situ zero emissions). However, the PEMFC is yet to be industrialized due to its fast degrading components. The contribution of the several start-ups and shutdowns (a PEMFC undergoes when operated in aircraft) to the degradation is not well-understood. Hence, this study seeks to explore the effects of start-up/shutdown (SU/SD) cycling on a PEMFC's lifetime. The SU/SD cycling is incorporated with heating to 60 °C and cooling to room temperature to mimic real-life temperature changes encountered in an aircraft. The tested membrane electrode assemblies (MEAs) were characterised for performance and evolution of its components to examine the extent and nature of degradation. More than two-thirds loss of electrochemically active surface area (ECSA) of catalyst, Pt particle growth (4.71-6.41 nm) associated with Ostwald ripening and formation of PtO from adsorption of OH − by Pt-M surface were identified to be causes of the observed voltage decay at 0.196 mV h −1 rate. Hence, it is concluded that SU/SD cycling mostly affects the catalytic component of PEMFC in the aeronautic environment.

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Investigating the effect of start-up and shut-down cycles on the performance of the proton exchange membrane fuel cell by segmented cell technology

Cited by 56 publications

References 29 publications

A review of energy management strategies for renewable hybrid energy systems with hydrogen backup

A review of energy management strategies for renewable hybrid energy systems with hydrogen backup

The application of orthogonal test method in the parameters optimization of PEMFC under steady working condition

Behavioural study of PEMFC during start-up/shutdown cycling for aeronautic applications

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