Nonlinear MPC Controller Design for AIR Supply of PEM Fuel Cell Based Power Systems

2016 ◽  
Vol 19 (3) ◽  
pp. 929-940 ◽  
Author(s):  
Quan Ouyang ◽  
Jian Chen ◽  
Fan Wang ◽  
Hongye Su
2018 ◽  
Vol 12 (14) ◽  
pp. 1714-1721 ◽  
Author(s):  
Baroud Zakaria ◽  
Gazzam Noureddine ◽  
Benalia Atallah ◽  
Ocampo‐Martinez Carlos

2010 ◽  
Vol 20 (3) ◽  
pp. 325-336 ◽  
Author(s):  
Winston Garcia-Gabin ◽  
Fernando Dorado ◽  
Carlos Bordons

2020 ◽  
Vol 45 (53) ◽  
pp. 29222-29234 ◽  
Author(s):  
Mohamed Derbeli ◽  
Oscar Barambones ◽  
Maissa Farhat ◽  
Jose Antonio Ramos-Hernanz ◽  
Lassaad Sbita

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4104 ◽  
Author(s):  
A.G. Olabi ◽  
Tabbi Wilberforce ◽  
Enas Taha Sayed ◽  
Khaled Elsaid ◽  
Mohammad Ali Abdelkareem

Combined heat and power (CHP) in a single and integrated device is concurrent or synchronized production of many sources of usable power, typically electric, as well as thermal. Integrating combined heat and power systems in today’s energy market will address energy scarcity, global warming, as well as energy-saving problems. This review highlights the system design for fuel cell CHP technologies. Key among the components discussed was the type of fuel cell stack capable of generating the maximum performance of the entire system. The type of fuel processor used was also noted to influence the systemic performance coupled with its longevity. Other components equally discussed was the power electronics. The thermal and water management was also noted to have an effect on the overall efficiency of the system. Carbon dioxide emission reduction, reduction of electricity cost and grid independence, were some notable advantages associated with fueling cell combined heat and power systems. Despite these merits, the high initial capital cost is a key factor impeding its commercialization. It is, therefore, imperative that future research activities are geared towards the development of novel, and cheap, materials for the development of the fuel cell, which will transcend into a total reduction of the entire system. Similarly, robust, systemic designs should equally be an active research direction. Other types of fuel aside, hydrogen should equally be explored. Proper risk assessment strategies and documentation will similarly expand and accelerate the commercialization of this novel technology. Finally, public sensitization of the technology will also make its acceptance and possible competition with existing forms of energy generation feasible. The work, in summary, showed that proton exchange membrane fuel cell (PEM fuel cell) operated at a lower temperature-oriented cogeneration has good efficiency, and is very reliable. The critical issue pertaining to these systems has to do with the complication associated with water treatment. This implies that the balance of the plant would be significantly affected; likewise, the purity of the gas is crucial in the performance of the system. An alternative to these systems is the PEM fuel cell systems operated at higher temperatures.


Author(s):  
Andres Munoz ◽  
Abhijit Mukherjee

Water management still remains a challenge for proton exchange membrane fuel cells. Byproduct water formed in the cathode side of the membrane is wicked to the air supply channel through the gas diffusion layer. Water emerges into the air supply channel as droplets, which are then removed by the air stream. When the rate of water production is higher than the rate of water removal, droplets start to accumulate and coalesce with each other forming slugs consequently clogging the channels and causing poor fuel cell performance. It has been shown in previous experiments that rendering the channels hydrophobic or super-hydrophobic cause water droplets to be removed faster, not allowing time to coalesce, and therefore making channels less prone to flooding. In this numerical study we analyze water droplet growth and detachment from a simulated hydrophobic air supply channel inside a proton exchange membrane (PEM) fuel cell. In these numerical simulations the Navier-Stokes equations are solved using the SIMPLER method coupled with the level set technique in order to track the liquid-vapor interface. The effect of the gravity field acting in the −y, −x, and +x directions was examined for an array of water flow rates and air flow rates. Detachment times and diameters were computed. The results showed no significant effect of the gravity field acting in the three different directions as expected since the Bond and Capillary numbers are relatively small. The maximum variations in detachment time and diameter were found to be 8.8 and 4.2 percent, respectively, between the horizontal channel and the vertical channel with gravity acting in the negative x direction, against the air flow. Droplet detachment was more significantly affected by the air and water flow rates.


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