Numerical Analysis of durability in high temperature polymerelectrolyte Membrane fuel cell based on acid basedpolybenzimidazole Membrane
- Title
- Numerical Analysis of durability in high temperature polymer
electrolyte Membrane fuel cell based on acid basedpolybenzimidazole Membrane - Creator
- K P, Venkatesh Babu
- Contributor
- Joseph, T V and Chippar, Purushothama
- Description
- The world requirement for renewable energy for a sustainable future is a topic of
great interest. Among such renewable energy, hydrogen is used as an energy carrier in the fuel cell. Among different fuel cell types, the high-temperature proton
exchange membrane fuel cell (HT-PEMFC) has attracted many researchers due to
its wide variety of applications. HT-PEMFC must be further studied to enhance its
performance and durability to meet the energy requirements.
In the present study, a three-dimensional non-isothermal model is developed to
numerically investigate the durability and performance of a HT-PEMFC. The developed model is validated against the experimental data available in literature. A
spatial characterization of CO poisoning in HT-PEMFC is carried out to investigate
the spatial resolution of the polarization curves, H2 concentration, current density,
and anode polarization loss. A graded cathode catalyst structure is studied to enhance the oxygen reduction reaction. The study reveals that the multiple graded
CLs improve performance but leads to uneven current distribution, and high Pt loading downstream signifcantly improves uniformity in the current distribution. The
study also proposes a hybrid catalyst structure to enhance performance and current distribution. The effect of various degrees of misalignment of flow feld plates
and its concomitant impact with varying the clamping pressures on HT-PEMFC operation is investigated to analyze the electrochemical behavior, reactant distribution, heat transport, electric transport, and cell performance and also suggests
the allowable misalignment tolerance. The proton conductivity numerical model for
cage-like cross-linked membranes for enhanced proton conductivity in HT-PEMFC
is developed to give a detailed and fundamental understanding of the polarization
phenomena and species transport. Sensitivity analysis of operational parameters of
HT-PEMFC is carried out to investigate the influential sensitivities of crucial operating parameters on evaluation index such as cell voltage, a standard deviation
of current density distribution, a mean and standard deviation of overpotentials of
anode and cathode at different operating current density regimes. The present research explores the possible improvement and enhancement in cell performance and
uniform species distribution to enhance cell performance and durability. - Source
- Author's Submission
- Date
- 2023-06-01
- Publisher
- Christ(Deemed to be University)
- Subject
- Mathematics
- Rights
- Open Access
- Relation
- 61000246
- Format
- Language
- English
- Type
- PhD
Collection
Citation
K P, Venkatesh Babu, “Numerical Analysis of durability in high temperature polymerelectrolyte Membrane fuel cell based on acid basedpolybenzimidazole Membrane,” CHRIST (Deemed To Be University) Institutional Repository, accessed August 28, 2025, https://archives.christuniversity.in/items/show/12006.