The method of determining PEMFC fuel cell stack performance decrease rate based on the voltage-current charact eristic shift

Ceran, Bartosz; Orłowska, Agata; Krochmalny, Krystian

doi:10.17531/ein.2020.3.16

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…The influence of the decline of the PV panel's efficiency on the operational characteristic PPV = f(E) is shown in Figure 7. The decrease in electrolyzer parameters was determined on the basis of the fuel cell stack aging model described in [41].…”

Section: Model and Methods Descriptionmentioning

confidence: 99%

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Multi-Criteria Comparative Analysis of Clean Hydrogen Production Scenarios

Ceran

2020

Energies

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Different hydrogen production scenarios need to be compared in regard to multiple, and often distinct aspects. It is well known that hydrogen production technologies based on environmentally-friendly renewable energy sources have higher values of the economic indicators than methods based on fossil fuels. Therefore, how should this decision criterion (environmental) prevail over the other types of decision criteria (technical and economic) to make a scenario where hydrogen production only uses renewable energy sources the most attractive option for a decision-maker? This article presents the results of a multi-variant comparative analysis of scenarios to annually produce one million tons of pure hydrogen (99.999%) via electrolysis in Poland. The compared variants were found to differ in terms of electricity sources feeding the electrolyzers. The research demonstrated that the scenario where hydrogen production uses energy from photovoltaics only becomes the best option for the environmental criterion weighting value at 61%. Taking the aging effect of photovoltaic installation (PV) panels and electrolyzers after 10 years of operation into account, the limit value of the environmental criterion rises to 63%. The carried out analyses may serve as the basis for the creation of systems supporting the development of clean and green hydrogen production technologies.

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Section: Model and Methods Descriptionmentioning

confidence: 99%

“…By substituting Equations ( 11)- (13) for Equation (10), the formula for the efficiency of hydrogen production by the electrolyzer can be written as Equation ( 14): The decrease in electrolyzer parameters was determined on the basis of the fuel cell stack aging model described in [41].…”

Section: Model and Methods Descriptionmentioning

confidence: 99%

Multi-Criteria Comparative Analysis of Clean Hydrogen Production Scenarios

Ceran

2020

Energies

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“…At the same time, as a result of an operation, fuel cell losses also increase. Information about such changes is short-circuited, among others, in publications[29][30][31][32][33].…”

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confidence: 99%

Experimental study and modelling of an air-cooled proton exchange membrane fuel cell stack in the static and dynamic performance

Pielecha,

Szwajca

2024

Eksploatacja i Niezawodność – Maintenance and Reliability

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Research on Proton Exchange Membrane fuel cells is an important area in the field of modern energy sources. Such fuel cells are characterized by high efficiency and fast response times, making them a promising solution for sustainable energy production. Fuel cells operate under both static and dynamic conditions. Such varying operating conditions result in achieving different efficiency of fuel cell systems. This study attempts an experimental and modeled efficiency evaluation of a 1.2 kW open-cathode air-cooled fuel cell stack under static and dynamic conditions. A Sankey energy balance and an analysis of the balance components were determined for the fuel cell stack operating in these two operating states. Simultaneous modeling of the fuel cell under both static and dynamic conditions was carried out. The efficiency values of the fuel cell stack were found to be slightly higher under static conditions than under dynamic conditions. Modeling fuel cells in static and dynamic conditions results in slightly different parameters (better conformance was obtained for static models).

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