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Electrical and Computer Engineering Commons™

Open Access. Powered by Scholars. Published by Universities.®

Electrical and Electronics

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2014

Articles 1 - 4 of 4

Full-Text Articles in Electrical and Computer Engineering

Optimal Scheduling Of A Microgrid With Demand Response Resources, Daniela Proto, Guido Carpinelli, Fabio Mottola Dec 2014

Optimal Scheduling Of A Microgrid With Demand Response Resources, Daniela Proto, Guido Carpinelli, Fabio Mottola

Daniela Proto

A larger penetration of plug-in electric vehicle (EV) fleets and of data centres in the microgrids (μGs) is foreseeable in the near future. Their presence and the presence of distributed generation (DG) units represent a challenge for system operators in that they must identify approaches for using these distributed resources that allow them to operate the grid in a more efficient and economical way. With particular reference to EVs and data centres, it must be noted that they are equipped with storage devices that potentially could result in the modification of the daily load profile of μGs by shifting peak …

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Exponential Weighted Method And A Compromise Programming Method For Multi-Objective Operation Of Plug-In Vehicle Aggregators In Microgrids, Pierluigi Caramia, Guido Carpinelli, Daniela Proto, Fabio Mottola Feb 2014

Exponential Weighted Method And A Compromise Programming Method For Multi-Objective Operation Of Plug-In Vehicle Aggregators In Microgrids, Pierluigi Caramia, Guido Carpinelli, Daniela Proto, Fabio Mottola

Daniela Proto

No abstract provided.

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Unsteady Mixed Convection In A Porous Media Filled Lid-Driven Cavity Heated By A Semi-Circular Heaters, Saad Mekhilef Dec 2013

Unsteady Mixed Convection In A Porous Media Filled Lid-Driven Cavity Heated By A Semi-Circular Heaters, Saad Mekhilef

Saad Mekhilef

A computational study has been performed on natural convection heat transfer and fluid flow in a porous media filled enclosure with semi-circular heaters by using finite element method. The ceiling of the cavity moves with a constant velocity and it is insulated. Temperature of vertical walls is lower than that of heaters. Results are presented via streamlines, isotherms, average Nusselt numbers and cross sectional velocity for different governing parameters such as Richardson number, Darcy number and dimensionless time. It is observed that both circulation of the flow and heat transfer is strongly affected with time increment and Darcy number inside …

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Unsteady Natural Convection In Al2o3–Water Nanoliquid Filled In Isosceles Triangular Enclosure With Sinusoidal Thermal Boundary Condition On Bottom Wall, Saad Mekhilef Dec 2013

Unsteady Natural Convection In Al2o3–Water Nanoliquid Filled In Isosceles Triangular Enclosure With Sinusoidal Thermal Boundary Condition On Bottom Wall, Saad Mekhilef

Saad Mekhilef

Unsteady natural convection heat transfer in an isosceles triangular enclosure filled with Al2O3 nanoparticle is studied by using finite element method. The bottom of the isosceles triangular cavity is heated non-uniformly and temperature of the inclined wall is lower than that of the bottom wall. The governing parameters are Rayleigh number, solid volume fraction, aspect ratio (H/L) of the enclosure and dimensionless-time. It is found that addition of the nanoparticle into base fluid (water) affects both heat transfer and fluid flow. Heat transfer increases with addition of nanoparticle and increasing of Rayleigh number. Conduction mode of heat transfer becomes dominant …

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