Channel to rib width ratio influence with various flow field designs on performance of PEM fuel cell

Kerkoub, Youcef; Boutarfaïa, Ahmed; Haddad, Fadila; Ziari, Y. Kerboua

doi:10.1016/j.enconman.2018.08.041

Cited by 148 publications

(58 citation statements)

References 34 publications

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“…where and are the current density at anode and cathode respectively, and (13) where the values for the catalyst loading, surface area and catalyst thickness for the anode and cathode CLs used in the present work collected from the literature [34]. The local surface overpotentials, , at the anode and cathode electrodes are expressed as follows:…”

Section: Conservation Of Electrical Chargesmentioning

confidence: 99%

“…A good number of these studies have been carried out on the most commonly-used flow field designs, i.e., straight channel, serpentine and interdigitated. In these studies, researchers investigated different aspects of the flow fields design in the conventional layouts: flow channel geometry and aspect ratios [12,13], size and number of channels [14], various flow configurations (single and multiple flow pattern) [15,16], the impact of operational parameters [17].…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Azarafza

Ismail

Rezakazemi

et al. 2019

Renewable and Sustainable Energy Reviews

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The choice of an appropriate flow field distributor is crucial to circumvent mass and charge transfer resistance-related issues in proton exchange membrane fuel cells (PEMFCs). In this work, incorporating all the anisotropic nature of the gas diffusion layers (GDLs), a three-dimensional, multiphase CFD model is built to perform a comparative study of several types of cathode flow field designs. Three conventional (i.e. parallel, serpentine and interdigitated) and two recently-introduced (i.e. parallel with blocks and the metal foam) flow field designs were considered for the cathode side. The results showed that the best fuel cell performance is obtained with the metal foam flow field as it induces the lowest water saturation, the lowest values and more uniform distribution of current density and temperature as well as relatively medium pressure drop. Compared with the parallel flow field case, the peak power density increases by about 50% when using the metal foam flow field and by about 10% when using the other three investigated flow fields (i.e. serpentine, interdigitated and parallel with blocks). The parametric analysis reveals that the metal foam outperforms other designs at intermediate and high humidity conditions whereas the interdigitated flow field design outperforms other designs at low humidity conditions.

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Section: Conservation Of Electrical Chargesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Azarafza

Ismail

Rezakazemi

et al. 2019

Renewable and Sustainable Energy Reviews

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show abstract

“…Tekli, ikili ve üçlü serpantin akış alanlarının kullanıldığı ve bunların akış dönüş noktalarının (dirsek) açılarının keskin ve geniş dönüşlü olarak karşılaştırıldığı çalışmada, kendilerinin önerdikleri akış alanı tipinin daha iyi performans verdiğini öne sürmüşlerdir. Akış alanlarının karşılaştırılması yöntemi, literatürde sıklıkla kullanılmakta olup, pek çok çalışma gerçekleştirilmiştir [23][24][25][26][27][28][29][30]. Awin ve Dukhan, serpantin akış alanına sahip klasik grafit BP ile alüminyum içine yerleştirilen alüminyum metal köpük BP'nin performanslarını karşılaştırmıştır [30].…”

Section: Akış Alanlarıunclassified

Bipolar Plaka Akış Alanları Üzerine Deneysel Çalışmalar

Koçak¹,

Topcu²,

Aydın³

et al. 2019

acperpro

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ÖzetTemiz ve alternatif enerji arayışı, insanlığın sürekli artan enerji talebini karşılama doğrultusunda artış göstermektedir. Yakıt pilleri, yakıtın kimyasal enerjisini kullanarak doğrudan elektriğe dönüştüren yüksek verimli enerji dönüşüm sistemleridir. Klasik elektrik enerjisi üretim çevriminde yakıt önce yakılarak ısı enerjisi elde edilmekte, ardından buhar etkisi ile türbin döndürülmekte, jeneratörde akım elde edilmekte ve depolanmaktadır. Bu enerji dönüşümü oldukça karmaşık ve çok makineli bir sistem gerektirirken, her enerji dönüşümünde enerji kayıpları da meydana gelmektedir. Yakıt pillerinde ise sadece yakıtın elektronlarını devreden geçirerek yüksek elektriksel verimle enerji elde edilmektedir. Bu çalışmada yakıt pili çeşitlerinden PEM yakıt pilleri ele alınarak, PEM yakıt pillerinde kullanılan bipolar plakaların akış alanları incelenmiştir. Literatürde nümerik çalışmalar da bulunmakla birlikte, yakıt pillerinin oldukça değişken çalışma şartlarından dolayı deneysel olarak test etmek büyük önem arz etmektedir. Bu nedenle son on yılda yapılmış olan deneysel çalışmalar, yöntemleriyle sunulmuştur. Günümüzde çok popüler bazı akış kanalları verilmekle beraber, akış kanallarını birbirleriyle karşılaştırma yöntemiyle üstünlüğün belirlendiği anlaşılmış ve günümüzde hala optimum akış kanalına ulaşılamadığı gözlemlenmiştir. AbstractBe in search of clean and alternative energy is increases with the increasing of energy demand of humanity. Fuel cells are high efficiency energy conversion systems that convert the fuel directly into electricity using the chemical energy of the fuel. In the classical electric power generation cycle, the first; fuel is burned and heat energy is obtained, then the turbine is turned with the effect of steam, after that current is obtained and stored in the generator. While this energy conversion requires a very complex and multi-machine system, energy losses occur with each energy conversion. In fuel cells, energy is obtained with high electrical efficiency using only electrons of the fuel. In this study, bipolar plate flow field was investigated used in PEM fuel cells. Although there are numerical studies in the literature, it is very important to test the fuel cells experimentally due to the highly variable operating conditions. For this reason, experimental studies in the last ten years were presented with their experimental approaches. Although some of the most popular flow channels are illustrated today, it is understood that superiority is determined by comparing the flow channels with each other and it is observed that the optimum flow channel is still not reached today.

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“…A numerical CFD study of a PEMFC system, based on a serpentine flow field with 25 channels and active area of 26 cm 2 indicated an optimal channel to rib width ratio of 0.25 [11]. Another numerical study for PEMFC with a serpentine flow field of 25 cm 2 active area, performed with CFD Fluent 14.0 software and with Taguchi method integrated in MINITAB 17 software for design optimization relieved and optimum channel to rib width ratio of 1 [12].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of a Pemfc System With Different Dimensions of the Serpentine Type Channels From Bipolar Plate Flow Fields

Andronie

Stamatin

Girleanu

et al. 2019

mech

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Channel to rib width ratio influence with various flow field designs on performance of PEM fuel cell

Cited by 148 publications

References 34 publications

Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Comparative study of conventional and unconventional designs of cathode flow fields in PEM fuel cell

Bipolar Plaka Akış Alanları Üzerine Deneysel Çalışmalar

Experimental Study of a Pemfc System With Different Dimensions of the Serpentine Type Channels From Bipolar Plate Flow Fields

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