Numerical simulation based design for an innovative PEMFC cooling flow field with metallic bipolar plates

Mahdavi, Arash; Ranjbar, A.A.; Gorji, Mohammad Ali Heidari; Rahimi-Esbo, M.

doi:10.1016/j.apenergy.2018.06.101

Cited by 81 publications

(21 citation statements)

References 26 publications

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“…Bipolar plakalar (BP), yakıt pili sistemi içerisinde önemli bir bileşen olup, reaktant ve oksidant gazların sisteme dağıtılması, reaksiyonlar sonucu oluşan gazların sistemden uzaklaştırılması, elektronların sistemden çekilmesi, stağa mekanik destek sağlama gibi görevleri üstlenir [18][19]. Bipolar plakaların sahip olması gereken özellikleri; yüksek elektriksel iletkenlik, yüksek korozyon direnci, yüksek ısıl iletkenlik, düşük gaz geçirgenliği, yüksek mukavemet, düşük kontak direnci, hafiflik, düşük maliyettir [15,[20][21][22][23]. BP'ler stak maliyetinin yaklaşık %40'ını, stak ağırlığının ise yaklaşık %80'ini oluşturmaktadırlar [24].…”

Section: Bipolar Plakalarunclassified

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Topcu¹,

Topcu²,

Aydın³

et al. 2019

acperpro

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ÖzetYakın gelecekte petrol rezervlerinin tükeneceği öngörülmemektedir, fakat hidrokarbon kökenli yakıtların kullanılması canlılar için sağlığa olumsuz etki eden emisyonlar oluşturmaktadır. Bu nedenle dünya genelinde yenilenebilir, alternatif ve temiz enerji kaynaklarına yönelim söz konusu olmaktadır. Yakıt pilleri, sessiz ve verimli çalışabilen, aynı zamanda zararlı emisyonları olmayan bir elektrik üretecidir. Ticari uygulamaları da bulunan yakıt pilleri, havacılık, otomotiv, askeri, denizaltı yerel ve mobil uygulamalarda kullanılabilmektedir. Bu da kapsamlı bir uygulama alanı olduğunun göstergesidir. Bu çalışmada yakıt pili tiplerinden PEM yakıt pilleri araştırma konusu olarak seçilmiş ve PEM yakıt pili bileşenlerinden bipolar plakaların üretim teknikleri ele alınmıştır. Geleneksel ve yenilikçi üretim tekniklerinin araştırıldığı bu çalışmada, üretim trendinin ne aşamada olduğu tartışılmış ve konunun gelecek perspektifi göz önünde bulundurularak yapılan araştırmalar değerlendirilmiştir.Anahtar Kelimeler: PEM yakıt pili, bipolar plaka, üretim teknikleri, geleneksel, toz metalürjisi, eklemeli imalat. AbstractOil reserves are not predicted to be wasted in the near future, but usage of hydrocarbon based fuels generates harmful emissions which affects the human health negatively. Therefore, there is a tendency towards renewable, alternative and clean energy sources worldwide. Fuel cells are electricity generators that can operate quietly and efficiently, and also without harmful emissions. Fuel cells can be used in aviation, automotive, military, submarine local and mobile applications which are also used in commercial applications. This situation show that comprehensive application fields of PEMFC. In this study, PEM fuel cell was selected as research area which is a type of fuel cell, and manufacturing techniques of bipolar plates investigated, which is a component of PEMFC. Traditional and innovator production techniques were researched and studies were evaluated in the literature considering the future perspective of the subject.

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Section: Bipolar Plakalarunclassified

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Topcu¹,

Topcu²,

Aydın³

et al. 2019

acperpro

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“…The factor enabling this favourable design and these weight parameters for UAV applications is the use of bipolar metal instead of traditional graphite plates in the construction of the stack. This enabled reduction of the length by over 20-30% and the weight by 30-40% in relation to an FC stack with graphite plates [48]. PEMFCs with bipolar metal plates appear suitable for UAV applications.…”

Section: Experimental Partmentioning

confidence: 99%

Monitoring of the Operating Parameters a Low-Temperature Fuel-Cell Stack for Applications in Unmanned Aerial Vehicles: Part I

et al. 2019

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The paper presents a brief analysis of the potential use of hydrogen-oxygen low-temperature fuel cells with proton-exchange membrane fuel-cell stacks as power sources for the construction of drive units powering unmanned aerial vehicles. Hydrogen storage methods are discussed. Characteristics of selected aspects of monitoring the electrical and non-electrical operating parameters of a drive unit with fuel cells were investigated, with respect to the fuel cell, fuel-cell cooling system, and gas reagent supplying the system with hydrogen and air. Hydrogen fuel consumption for the production of electricity and purification, or so-called purge, was analysed. Based on the results of laboratory tests of the parameters of a generator with fuel cells, an exemplary method of monitoring operating parameters and controlling power sources involving fuel cells is proposed.

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“…The use of metallic materials allows for the production of thinner plates, thereby improving the volumetric power density of the fuel cell stack , . Metallic BPPs also have good thermal conductivity which is essential for the thermal management of high power stacks , .…”

Section: Introductionmentioning

confidence: 99%

Titanium Nitride Polyaniline Bilayer Coating for Metallic Bipolar Plates used in Polymer Electrolyte Fuel Cells

Cooper

2020

Fuel Cells

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Two materials, polyaniline (PANI) and titanium nitride (TiN), used for bipolar plate (BPP) coatings have each shown promise in improving the corrosion resistance and contact resistance, respectively, of metallic bipolar plates. Polyaniline was shown to provide a barrier for the bipolar plate and to effectively lower the corrosion currents observed in ex situ corrosion tests. However, the interfacial contact resistance (ICR) between polyaniline coatings and gas diffusion layer (GDL) is high and results in high electrical losses. On the other hand, TiN is reported to achieve good conductivity and in some cases improved corrosion resistance. The two materials have also been investigated together in a composite coating and showed promising results, but the contact resistance of the coating was still too high for use in a commercial fuel cell. In this study, the application of an additional layer of TiN over the TiN‐polyaniline composite coating (a bilayer coating) is investigated. Composite bilayered PANI TiN coatings were deposited upon SS316L substrates. The optimized coating achieved U.S. Department of Energy (DoE) targets with potentiostatic corrosion currents of ∼0.024 μA cm−2 and ICR values of 11.2 mΩ cm2. PANI polymerization was confirmed, using Fourier‐transform infrared (FTIR) spectroscopy and TiN loadings were investigated with energy dispersive X‐ray (EDX) spectroscopy .

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Numerical simulation based design for an innovative PEMFC cooling flow field with metallic bipolar plates

Cited by 81 publications

References 26 publications

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Monitoring of the Operating Parameters a Low-Temperature Fuel-Cell Stack for Applications in Unmanned Aerial Vehicles: Part I

Titanium Nitride Polyaniline Bilayer Coating for Metallic Bipolar Plates used in Polymer Electrolyte Fuel Cells

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