In this study, two systems are brought forward to recover the waste heat of a proton exchange membrane fuel cell (PEMFC), which are named the organic Rankine cycle (ORC), and heat pump (HP) combined organic Rankine cycle (HPORC). The performances of both systems are simulated on the platform of MATLAB with R123, R245fa, R134a, water, and ethanol being selected as the working fluid, respectively...

Data-driven diagnosis methods for faults of proton exchange membrane fuel cell (PEMFC) systems can diagnose through the state variable data collected during operation PEMFC system. However, from system stack switching between different operating points easily cause false alarms, such that practical value is reduced. To overcome this problem, a fault method based on steady-state identification p...

This paper provides a comprehensive review of the temperature control in proton exchange membrane fuel cells. Proton (PEM) cells inevitably emit certain amount heat while generating electricity, and cell can only exert its best performance appropriate range. At same time, generated cannot spontaneously keep uniform stable, is required. part thermal energy be classified into two groups. On one h...

Fuel cells are being pursued for a wide variety of applications due to their high theoretical efficiency and environmental friendliness [1, 2]. In particular, proton exchange membrane fuel cells (PEMFCs), because of the advantages of low temperature operation, fast start-up, system robustness and low emissions, are attractive for automotive and portable applications [3]. However, commercialisat...

The depletion of fossil fuel sources has encouraged the authorities to use renewable resources such as wind energy generate electricity. A backup/storage system can improve performance turbines, due fluctuations in power demand. novelty this study is utilize a hybrid for farm, using excess electricity generated by turbines produce hydrogen an alkaline electrolyzer (AEL). storage tank stores pro...

Contact resistance among the components of a polymer exchange membrane fuel cell (PEMFC) has a crucial effect on cell performance. The geometry of the endplate plays an essential role in the contact pressure distribution over the membrane electrode assembly (MEA) and the amount of contact resistance between plates. In this work, the effects of endplate geometry on the contact pressure distribut...

To improve the reliability and the energy efficiency of datacenters, as well as to reduce infrastructure costs and environmental impacts, we demonstrated and evaluated the use of a 10 kW Proton Exchange Membrane Fuel Cell (PEMFC) stack and system for powering the servers in a data center. In this study, we designed, tested and demonstrated a PEMFC system as a Distributed Generation (DG) prime m...

Numerical modeling has been a vital tool in proton-exchange-membrane fuel-cell (PEMFC) analysis; however, the predictive capabilities of these models depend on input physical parameters, several which are either not experimentally measured or have large scatter values. This article presents an uncertainty propagation-based sensitivity analysis to identify model parameters that impact prediction...

To prolong the operating time of unmanned aerial vehicles which use proton exchange membrane fuel cells (PEMFC), the performance of PEMFC is the key. However, a long-term operation can make the Pt particles of the catalyst layer and the pollutants in the feedstock gas bond together (e.g., CO), so that the catalyst loses reaction activity. The performance decay and aging of PEMFC will be influen...