Hybrid renewable energy systems are expected to become competitive to conventional power generation systems in the near future and, thus, ptimization of their operation is of particular interest. In this work, a hybrid power generation system is studied consisting of the following main omponents: photovoltaic array (PV), electrolyser, metal hydride tanks, and proton exchange membrane fuel cells...

In this study, the newly designed bipolar plate for proton exchange membrane fuel cells (PEMFC) was produced by spray-coating the Ni65Cr15P16B4 metallic glassy alloy on Al plate. The Ni65Cr15P16B4 metallic glass was adopted as a coating material because of its excellent corrosion resistance and the high velocity oxy-fuel (HVOF) spray coating was used for the metallic glass deposition on the Al ...

A key parameter that determines the efficiency of proton exchange membrane fuel cells is their operating conditions. Optimization various components in these pivotal improving cell performance, as performance directly related to operational conditions are subjected to. This investigation examined viability an air breathing ambient Riyadh Saudi Arabia. validated three-dimensional 5-cell stack, m...

Proton exchange membrane fuel cells (PEMFCs) can be used in transportation, power plants and distributed generation due to high power density and fast speed of operation. Dynamic modeling of fuel cells is a primary need for performance assessment studies of real-time and controller design. Some new models of Simulink use artificial intelligence for making graph output model. Neural network is o...

Fuel gas utilization and water management are particularly challenging integrated engineering problems in hydrogen–oxygen proton exchange membrane fuel cell (H2/O2 PEMFC) systems. Herein, a standardized process is adopted to evaluate the performance investigate degradation mechanisms of PEMFC with dual exhaust recirculation. The purpose incorporating recirculation subsystems achieve high rate r...

In this paper, an intelligent model-based fault detection (FD) is developed for proton exchange membrane fuel cell (PEMFC) dynamic systems using an independent radial basis function (RBF) networks. The novelty is that this RBF networks is used to model the PEMFC dynamic systems and residuals are generated based on the differences between the PEMFC systems and RBF networks model. Later, based on...

Load changing performance is significant for the application of proton exchange membrane fuel cells (PEMFCs). This paper compares experimental results hydrogen-air and hydrogen-oxygen PEMFC analyzes their dynamic under various operating conditions. We use electrochemical impedance spectroscopy to investigate intrinsic mechanism during load changing. Due higher oxygen concentration, responds fas...

This paper evaluates the performance of a grid connected hybrid system. The hybrid system consists of a Photovoltaic (PV) array and a Proton exchange membrane fuel cell (PEMFC). Two operation modes, the unit-power control (UPC) mode and the feeder-flow control (FFC) mode, can be applied to the hybrid system. The objective of the paper is to coordinate the two control modes and determine the ref...

The optimum output power of the proton exchange membrane fuel cell (PEMFC) is dependent on operational conditions such as pressure, oxidant flow rate, and rate. Therefore, aim this paper to enhance performance PEMFC by identifying optimal operating parameters PEMFC. proposed strategy includes both modelling optimization stages. An adaptive network-based fuzzy inference system (ANFIS) utilized i...

The amount and distribution over the active area of current density produced by stack is a key aspect fuel cell performance. performance proton exchange membrane (PEMFC) affected many factors, including operating conditions, flow field manifold design, In present study, 3D multiphysics model PEMFC half-cell focused in cathode side developed. Statistical analysis tools are proposed to quantitati...