... the optimum system configuration and component designs. Then, a multiparameter sensitivity analysis is performed to estimate the relative importance of the decision variables on the objectives. The optimization results indicate that the life cycle cost of the hybrid system is 3800–5,600 $/kW, and the maximum...

..., respectively, is also studied. Comparison among those catalysts, 15%Pt-15%Sn/C yields better cell performance than the others. Levelized energy cost (LEC) and sensitivity analysis on LEC are also assessed. In this study, Nafion N-117 was used as a polymer electrolyte membrane. To remove impurities, Nafion...

... that observed for modern intermediate temperature anode-supported configurations; thus, a sensitivity analysis was conducted to identify appropriate parameters for modern SOFC modeling. Model results are shown for SOFC operation on humidified H 2 and CH 4 containing syngas, under coflow and counterflow...

... that utilizes state-of-the-art computational fluid dynamics (CFD) techniques including robust nonlinear solution algorithms, numerical derivatives with complex variables, and sensitivity analysis with adjoint methods. The value of the sensitivity derivative is used to modify the design variable Ψ...

...S. Kapadia; W. K. Anderson; L. Elliott; C. Burdyshaw Sensitivity analysis and design optimization of solid oxide fuel cells are presented. Multispecies diffusion, low speed convection, and chemical kinetics are included in a two-dimensional numerical model, and sensitivity derivatives are computed...

... for fuel cell operation. All the four factors have two levels, leading a full factorial design requiring 2 4 experiments leading to 16 experiments and fractional factorial experiments, 2 4 − 1 , leading to 8 experiments. The experimental data collected were analyzed by statistical sensitivity analysis...

.... Finally, a sensitivity analysis is performed, in order to investigate the influence of the design parameters on the performance of the system. 30 11 2005 08 06 2006 21 04 2008 current density diffusion heat transfer overvoltage reaction kinetics theory sensitivity analysis...

... a sensitivity analysis with respect to the physical reference case and geometric parameters. The results indicate that surface diffusion might play a major role for the reaction kinetics, but only if the air pore is void of liquid water. In contrast, the formation of liquid water in the gas pores will turn...

... with that, there is the desire to achieve faster load changes while temperature gradients stay small. For the first time, optimal fast load changes have been computed numerically, including a parametric sensitivity analysis, based on a mathematical model of Heidebrecht. The mathematical model allows for the calculation...

... be grouped into three categories. The first group of papers deals with the development and application of mathematical approaches to the handling of complex nonlinear systems in the context of fuel cells. This includes sensitivity analysis (Sternberg) and bifurcation analysis (Groetsch). A second...

... as well as with two combined heat and power applications, where an economical value is assigned to the produced and consumed heat. The impact on economical competitiveness of possible incentives for the generated fuel cell power is estimated. A sensitivity analysis with different fuel cell-units...

... deviations. 17 03 2005 14 09 2005 proton exchange membrane fuel cells optimisation control system analysis control system synthesis sensitivity analysis coolants flow control PEM fuel cell system thermal dynamics control volume analysis first-law analysis energy balance...