Modeling of transport phenomena in polymer electrolyte fuel cell stacks thermal, water, and gas management

... taken into account 1.2 MATHEMATICAL MODELING OF LITHIUM- ION BATTERIES 1.2 Mathematical modeling of lithium- ion batteries Mathematical modeling and computational analysis are extensively employed in ... transition metal employed for the positive electrode (1.3) 1.1 OVERVIEW OF LITHIUM- ION BATTERIES Figure 1.2: Schematic of a lithium- ion battery opera...

Ngày tải lên: 09/09/2015, 08:12

... declare that the thesis is my original work and it has been written by me in its entirety I have duly acknowledged all the sources of information which have been used in the thesis This thesis has ... information which have been used in the thesis This thesis has also not been submitted for any degree in any university previously _ Karthik Somasundaram 17 October 2012 à

Ngày tải lên: 09/09/2015, 17:54

... understanding of transport phenomena in fuel cells, and become an indispensable tool in fuel cell research and development The beginning of modeling of fuel cells can be traced back to the work of Sampath ... output of a given fuel cell stack will depend on its size Increasing the number of cells in a stack increases the voltage, while increasing the surfac...

Ngày tải lên: 15/09/2015, 22:19

... determining the SOFC system performance The detailed designs of each of these components in the INER SOFC system are described in the following subsections 3.1 Flow distributor In general, an SOFC ... 44%) Design of SOFC BOP components The BOP components of a SOFC system account for between 50% and 70% of the total system cost Due to the high operating temper...

Ngày tải lên: 05/09/2013, 16:10

... used to analyse and evaluate the performance of a planar and a tubular-shaped PEM fuel cell 2.1 Computational domain The full computational domains for the planar and tubular-shaped PEM fuel cell ... conditions are specified at all external boundaries of the computational domain as well as boundaries for various mass and scalar equations inside the computationa...

Ngày tải lên: 05/09/2013, 14:58

... convective and diffusive heat and mass transfer, electrode kinetics, transport and phase-change mechanism of water, and potential fields in a micro PEM fuel cell with nature inspired gas flow channels ... fuel cells J Power Sources, 2004, 125(2), 40–51 [16] Maher A. R Sadiq Al-Baghdadi A CFD analysis of transport phenomena and electrochemical...

Ngày tải lên: 09/09/2015, 10:17

... Introduction to spintronics physics – spin- dependent transport in ferromagnets (FM) The foundation of spintronics is based on the influence of the spin of an electron on its transport properties in FM ... sensitivity of spin- dependent tunneling (in MTJs and granular films) compared to spin- dependent scattering in metallic GMR structures is because the number...

Ngày tải lên: 09/09/2015, 10:15

... an important role in transporting passengers and cargo Especially in transporting passengers in urban area, long distance, container, inter – area cargo, etc… The first line of VietNam Railways ... train runs along the Red River All trains leave in the evening from Hanoi and arrive at Lao Cai train station in the early morning Trains also leave in the evening from Lao Cai and ar...

Ngày tải lên: 03/09/2012, 09:19

... sources or Triacylglycerol mobilization in yeast as sinks for internal fluxes From a biological point of view, they allow the cell to dispose of excess metabolites by storing them in an inert form When ... inoculation of cells into fresh culture medium; and, most importantly, (c) yields a quantitative description of the utilization of TAG depots for the production o...

Ngày tải lên: 16/03/2014, 04:20

... spread out between adjacent grains is increased by oxidizing vapours and decreased in the opposite case [6–8], that implies a variation of resistivity in the same way Since 1980, many authors have ... polycrystalline layer made up of grains which have a great disparity of shape and size In this work, the grains are supposed to be quasi-spherical, identical in size, and...

Ngày tải lên: 20/03/2014, 13:04

... membrane targeting and thiamine transport activity In a recent paper, we described the molecular consequences of a single aminoacid substitution identified in an Italian Rogers syndrome family harboring ... patients carrying this D93H mutant protein which apparently lost thiamine transport activity Aspartate 93 is conserved in all members of the solute carri...

Ngày tải lên: 30/03/2014, 20:20

... High loading of nanostructured ceramics in polymer composite thick films by aerosol deposition Hyung-Jun Kim1 and Song-Min Nam*1 Department of Electronic Materials Engineering, Kwangwoon ... possibility of AD as a solution for the high loading of ceramics in polymer composites Conclusion The Al2O3-polyimide composite thick films were deposited on Cu...

Ngày tải lên: 20/06/2014, 20:20

... et al.: Analysis and modeling of spatial characteristics in urban microscenario of heterogeneous network EURASIP Journal on Wireless Communications and Networking 2011 2011:187 Competing interests ... number of paths of which the jn = θ, and the Pn, θ is the power of the corresponding path 4.2 Data analysis and angular offset modeling Figure depicts a sp...

Ngày tải lên: 20/06/2014, 21:20