A5073906383- Fuel Cells and Related Materials
- Electrocatalysts for Energy Conversion
- Aerodynamics and Fluid Dynamics Research
- Wind and Air Flow Studies
- Fluid Dynamics and Vibration Analysis
- Advanced battery technologies research
- Advancements in Solid Oxide Fuel Cells
- Fluid Dynamics and Turbulent Flows
- Membrane-based Ion Separation Techniques
- Combustion and flame dynamics
- Advanced Combustion Engine Technologies
- Microstructure and Mechanical Properties of Steels
- Catalytic Processes in Materials Science
- Hydrogen embrittlement and corrosion behaviors in metals
- Ammonia Synthesis and Nitrogen Reduction
- Aerodynamics and Acoustics in Jet Flows
- Radiative Heat Transfer Studies
- Vehicle Dynamics and Control Systems
- Advanced Battery Technologies Research
- Electric and Hybrid Vehicle Technologies
- Heat transfer and supercritical fluids
- Innovation and Knowledge Management
- Infectious Diseases and Mycology
- MXene and MAX Phase Materials
- Machine Fault Diagnosis Techniques
Hunan Institute of Science and Technology
2017-2024
Hunan University
2015-2023
South China University of Technology
2018
Proton Exchange Membrane Fuel Cell (PEMFC) is a multi-parameter and strongly coupled complex system, efficient smooth operation beneficial to the efficiency stability of PEMFC. In this paper, aiming at improve temperature voltage management in PEMFC, stack model established, PEMFC dynamic controller based on Model Predict Control method (MPC) proposed. The working output are controlled by mass flow rate cooling water hydrogen gas, respectively. performances under different including MPC...
The performance of high-temperature polybenzimidazole (PBI) proton exchange membrane fuel cells (HT-PEMFCs) doped with phosphoric acid is strongly influenced by the configuration its flow channel. In this research, genetic algorithm (GA) adopted to optimize original three-dimensional simulation model obtaining optimal design channel configuration. Set widths top and bottom edges anode/cathode channels as independent variables constrained range HT-PEMFC performance. ratio pressure drop loss...
During the operation of high-power proton exchange membrane (PEM) fuel cell, huge heat is generated in chemical reaction, which need be removed by efficient cooling design. To solve problem local overheating during PEMFC, a novel multi-input and multi-output (MIMO) flow field proposed. The maximum temperature, temperature uniformity pressure drop characteristics U-shaped Z-shaped fields with different MIMO channels configurations are researched computational fluid dynamics (CFD) method....
The design of the flow field plate plays a crucial role in performance proton exchange membrane fuel cell (PEMFC). In this study, novel three-dimensional stepped wavy (SWFF) is developed to enhance output PEMFC. effects geometric parameters field, included total length (S) and depth (H), ratio sub-stepped (s1:s2 s1:s3), (h1:h2), on transport distribution characteristics oxygen water PEMFC are numerically investigated. results demonstrated that smaller larger result better performance....
The combustion of conventional methane–hydrogen mixtures is associated with challenges such as instability and excessive pollutant emissions. This study explores the advantages porous media, which include a wide operating range, enhanced stability, high efficiency, reduced We conducted numerical transient simulations to investigate within focusing on cylindrical double-layer burner geometry. research analyzes temperature, rate, diffusion characteristics methane–hydrogen–precipitated gas...
The addition of hydrogen to natural gas is an effective approach broaden the range applications for and address issue global warming. However, inclusion alters combustion properties gas. paper established a simplified mechanism consisting 19 components 67-step reaction hydrogen-doped combustion. With this mechanism, effects doping utilization porous media techniques on characteristics were investigated numerically. results suggested that technology beneficial achieving complete reducing...
In the design of High-temperature proton exchange membrane fuel cells (HT-PEMFC), thickness catalyst layer (CL) determines to some extent strength electrochemical performance cell and its manufacturing cost. To achieve goal improving reducing cost, genetic algorithm was employed optimize cathode anode catalytic layers. The thicknesses anode/cathode CLs were set as independent variables. results showed that best minimum adaptation value determined 0.03072. are 0.0231 mm 0.0315 mm,...
In a complex environment, large bridges will present different adhesion coefficient, often accompanied by crosswind, which makes the flow field around vehicle and changeable. It is easy to cause unnecessary lane change sideslip of vehicle, affect driving stability lead serious traffic accidents. Therefore, this paper studies aerodynamic cars passing through bridge tower at high speed under road crosswind conditions. The detached-eddy simulation (DES) model was employed reliability DES...
The influence of transient aerodynamics on a vehicle in crosswind and the effect vehicle’s motion are investigated by employing fully coupled simulations. method makes simulation data fluid dynamics exchange time. LES used to investigate movement turbulence, wind tunnel experiments carried out validate numerical method. is simplified as three-degree-of-freedom system which moves only horizontal direction. driver’s reaction considered when simulated. results simulations show that aerodynamic...
Purpose The purpose of this paper is to develop a two-way coupling approach for investigating the aerodynamic stability vehicles under combined effect crosswind and road adhesion. Design/methodology/approach author develops new approach, which couples large eddy simulation with multi-body dynamics (MBD), investigate on three different adhesion roads: ideal road, dry wet road. comparison results obtained using traditional one-way also done assess necessity use proposed technique low roads,...