A reliability-based strategy for the analysis of single proton exchange membrane fuel cells
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2019
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Energy and Power Engineering
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Resumo
The development of power conversion systems based on fuel cells has been
demanding reliability studies since the requirements associated with cost and
durability of these technological products have become fundamental to their
acceptance by the energy market. The experimental part of the reliability study
presented in this work consisted of performing life tests with single proton exchange
membrane fuel cells (PEMFCs). The proposed reliability analysis methodology
covered the application of qualitative and quantitative techniques. In
the qualitative approach, a Failure Mode and Effect Analysis was developed in
order to identify and evaluate all potential failures associated with the operation
of fuel cells. In the quantitative approach, a statistical analysis was applied
to the sample data generated in long-term steady-state tests of these devices.
A two-parameter exponential distribution was fitted to data and the
maximum likelihood estimate for the mean time to failure (MTTF) of the
fuel cells was calculated. It is important to point out that the tests performed
under the scope of this study were the first long-term experiments
performed with the fuel cells produced in the laboratories of IPEN-CNEN/SP,
Brazil. Although the results indicated that fuel cell performance and durability
were still at a level below the targets normally established for similar commercial
devices, the improvement of the main components of PEMFCs has
been the objective of several projects developed at the institute. Thus, the
main benefit brought by this study is the proposed methodology, which can
be implemented as part of a reliability growth analysis of the fuel cells and
can be integrated into the design process of these devices.
Como referenciar
OLIVEIRA, PATRICIA da S.P. de; ANDREA, VINICIUS; SANTIAGO, ELISABETE I.; LOPES, THIAGO; ANDRADE, DELVONEI A. de; LINARDI, MARCELO. A reliability-based strategy for the analysis of single proton exchange membrane fuel cells. Energy and Power Engineering, v. 11, n. 8, p. 303-319, 2019. DOI: 10.4236/epe.2019.118019. Disponível em: http://repositorio.ipen.br/handle/123456789/30139. Acesso em: 20 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.