Results 31 to 40 of about 3,492 (211)

Optimization of Polymer Electrolyte Membrane Fuel Cell Performance by Geometrical Changes [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2017
Three-dimensional computational fluid dynamics in house-code of a Polymer Electrolyte Membrane Fuel Cell (PEMFC) has been developed. The conservation equations are numerically solved using finite volume technique.
Nima Ahmadi, Sajad Rezazadeh, Mehdi Asgharikia,, Ehsan Shabahangnia   +3 more
doaj  

Thermal management of metal hydride hydrogen storage tank coupled with proton exchange membrane fuel cells

Case Studies in Thermal Engineering, 2023
Metal hydride (MH), considered a promising hydrogen storage material, has received wide attention. As an efficient device for hydrogen energy utilization, a proton exchange membrane fuel cell (PEMFC) generates power and releases waste heat.
Liang Tong, Chengqing Yuan, Tianqi Yang, Yupeng Yuan, Richard Chahine, Jinsheng Xiao   +5 more
doaj   +1 more source

Performance Analysis and Optimization of a High-Temperature PEMFC Vehicle Based on Particle Swarm Optimization Algorithm

Membranes, 2021
In this paper, a high-temperature proton exchange membrane fuel cell (HT-PEMFC) model using the polybenzimidazole membrane doped with phosphoric acid molecules is developed based on finite time thermodynamics, considering various polarization losses and ...
Yanju Li, Zheshu Ma, Meng Zheng, Dongxu Li, Zhanghao Lu, Bing Xu   +5 more
doaj   +1 more source

Diagnosing Improper Membrane Water Content in Proton Exchange Membrane Fuel Cell Using Two-Dimensional Convolutional Neural Network

Energies, 2022
In existing proton exchange membrane fuel cell (PEMFC) applications, improper membrane water management will cause PEMFC performance decay, which restricts the reliability and durability of PEMFC systems.
Heng Zhang, Zhongyong Liu, Weilai Liu, Lei Mao   +3 more
doaj   +1 more source

Study of the forming process effects on the wrinkling and thinning percentage of the micro-channels with serpentine layout [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2023
In the present study, the lubricated and non-lubricated stamping processes are used for fabrication of the metallic bipolar plates (MBPPs) with a thickness of 0.1 mm made of SS3316 with a serpentine flow field. Experimental tests together with the finite
Hossein Talebi Ghadikolaee, Shahaboddin Seddighi, Mohammad Barzegari   +2 more
doaj   +1 more source

Unrevealing the Impact of Annealing Condition on Catalytic Activity of PtNi Alloy Electrode Towards Oxygen Reduction Reaction

Indonesian Journal of Chemistry
Alloying platinum (Pt) with transition metals such as nickel (Ni) has been an effective approach for reducing Pt loading and enhancing catalytic activities towards the sluggish oxygen reduction reaction (ORR) on the cathode of proton exchange membrane ...
Anindya Pramudya Wardhani, Salwaa Tanaya, Retna Deca Pravitasari, Damisih Damisih, Dewi Kusuma Arti, Sri Rahayu, Muhammad Didik Gumelar, Elok Fidiani   +7 more
doaj   +1 more source

Improved Semi-empirical Model of Proton Exchange Membrane Fuel Cell Incorporating Fault Diagnostic Feature

Journal of Modern Power Systems and Clean Energy, 2021
The membrane water content of the proton exchange membrane fuel cell (PEMFC) is the most important feature required for water management of the PEMFC system. Any improper management of water in the fuel cell may lead to system faults.
Saad Saleem Khan, Hussain Shareef, Ahmad Asrul Ibrahim   +2 more
doaj   +1 more source

Proton Değişim Membranı olarak SPEEK-PVA ve SPEEK-PVA-Borik Asit Karışım Membranlar üzerine TEOS Katkısının Etkisi

Van Yüzüncü Yıl Üniversitesi Mühendislik Fakültesi Dergisi, 2023
Bu çalışmada, proton değişim membranı olarak farklı kütlesel yüzdelerde (%1, %3 ve %5) TEOS katkılı SPEEK-PVA ve SPEEK-PVA-borik asit karışım membranları çözelti döküm yöntemiyle sentezlenmiştir.
Alpay Şahin, İrfan Ar, Yavuz Yağızatlı   +2 more
doaj  

Dynamics Response of the Proton Exchange Membrane Fuel Cell Coupled with Electrolysis [PDF]

Journal of Renewable Energy and Environment
Fuel cells convert the chemical energy of reactants into electrical energy, with the Proton Exchange Membrane Fuel Cell (PEMFC) being a prominent example due to its simple structure, durability, and ease of operation.
Made Sucipta, I Gede Febri Bala Antara, Richard Butarbutar, Made Suarda, I Nyoman Budiastra, I Gusti Ngurah Janardana   +5 more
doaj   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source