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Bipolar plates (BPs) are one of the most important components in Proton Exchange Membrane Fuel Cells (PEMFC) due to the numerous functions they perform. The objective of the research work described in this paper was to develop a simplified and validated method based on Computational Fluid...
Persistent link: https://www.econbiz.de/10010668153
Three different horizontal axis wind turbine (HAWT) blade geometries with the same diameter of 0.72 m using the same NACA4418 airfoil profile have been investigated both experimentally and numerically. The first is an optimum (OPT) blade shape, obtained using improved blade element momentum...
Persistent link: https://www.econbiz.de/10011030702
Over the past two decades, computational fluid dynamics and particularly the finite volume method have been increasingly used to predict the performance of wind turbines within their environment. Increases in available computational power has led to the application of RANS-based models to more...
Persistent link: https://www.econbiz.de/10011030820
Solid oxide fuel cells (SOFCs) with proton conducting electrolyte (H-SOFCs) are promising power sources for stationary applications. Compared with other types of fuel cells, one distinct feature of SOFC is their fuel flexibility. In this study, a 2D model is developed to investigate the...
Persistent link: https://www.econbiz.de/10011031342
fuels, as well as to reduce the CO<sub>2</sub> emissions of internal combustion engines. The present paper describes an … observed in terms of soot concentration is 37.5%, at 1200 rpm. The combustion analysis revealed that the main differences among … the fuels occur in the first phase of combustion: the burn rate is slower for biodiesel blends at low speeds, and faster …
Persistent link: https://www.econbiz.de/10011262965
Spring harvested corn stover was used for direct combustion in a 146 kW dual chamber boiler designed for wood logs … combustion chamber at a rate of 10.5 to 12.8 kg/h over a 24-h period, with three replications, and compared to a control wood … combustion trial (12.1 kg/h during 24 h). The overall heat transfer efficiency for stover was lower than for wood (57% <em …
Persistent link: https://www.econbiz.de/10011030884
This paper presents a concise overview of ash deposition in combustion or co-firing of biomass (woody biomass … aspects on biomass combustion ash deposition are reviewed and discussed: influence of biomass fuel characteristics, deposit … technologies for reducing ash deposition and corrosion in biomass-involved combustion. …
Persistent link: https://www.econbiz.de/10011031122
The objective of this study was to observe the combustion process of extracted rapeseed (ER) grist in a stationary … combustion in the 90 to 200 kW (Kilowatt) SFB combustion test facility show that the optimal ER combustion temperature is within …
Persistent link: https://www.econbiz.de/10011031154
This paper presents a methodology to simulate the combustion of fixed beds of biomass particles using computational …
Persistent link: https://www.econbiz.de/10011031176
The present work focuses on the numerical modeling of combustion in liquid-propellant rocket engines. Pressure and …, combustion models and thermodynamic approaches were used for combustion modeling first in a trans-critical environment, then in …/Eulerian description. For modeling combustion, the Probability Density Function (PDF) equilibrium and flamelet approaches and the Eddy …
Persistent link: https://www.econbiz.de/10011031204