Performance of advanced automotive fuel cell systems with heat rejection constraint

Performance of advanced automotive fuel cell systems with heat rejection constraint

Although maintaining polymer electrolyte fuel cells (PEFC) at temperatures below 80 C is desirable for extended durability and enhanced performance, the automotive application also requires the PEFC stacks to operate at elevated temperatures and meet the heat rejection constraint, stated as Q/DT < 1.45 kW/ C, where Q is the stack heat load for an 80-kWe net power PEFC system and DT is the diffe...

Development of Sensors for Automotive Fuel Cell Systems

The team assembled for this project will perform the following tasks: 1. Obtain representative samples of physical parameter sensors currently available to meet the targets specified in the fuel cells section of the Hydrogen, Fuel Cells and Infrastructure Technologies Program (HFCIT) Multi-Year R,D&D Plan (MYP). 2. Design and construct a facility for testing physical and chemical sensors under ...

On the Control of Automotive Traction PEM Fuel Cell Systems

Control-Oriented Modeling and Analysis for Automotive Fuel Cell Systems

Fuel Cells are electrochemical devices that convert the chemical energy of a gaseous fuel directly into electricity. They are widely regarded as a potential future stationary and mobile power source. The response of a fuel cell system depends on the air and hydrogen feed, flow and pressure regulation, and heat and water management. In this paper, we develop a dynamic model suitable for the cont...

3D Investigation of Tubular PEM Fuel Cell Performance Assuming Fluid- Solid- Heat Interaction

According to the declining trend of fossil fuel resources and the need to use renewable energies, appropriate research should be conducted for technical and functional studies in this regard. Therefore, in this research, a tubular PEM fuel  cell as a suitable energy source with three-dimensional geometry has been numerically simulated and investigated. For a comprehensive study, the equations o...