Concept

General Electric

Publications associées (24)

OES Characterization of Steamers in a Nanosecond Pulsed SBDB Using N2 and Ar Transitions

Christoph Hollenstein, Peter Ott, Pénélope Leyland, Philip Peschke, Sami Goekce

The characterization of non-thermal homogeneous plasmas is possible using optical emission spectroscopy (OES), notably by estimating the reduced electric field. This method was applied to characterize streamers generated by a nanosecond pulsed surface diel ...

Iop Publishing Ltd2016

On the Impact of Integration of Non-Image Forming (NIF) Effect of Light on Electrical Lighting Control in Non-Residential Buildings

Jean-Louis Scartezzini, Ali Motamed, Marta Benedetti

Lighting has an impact on the visual as well as cognitive performance of people in non-residential buildings. Light is the most powerful time cue for resetting the circadian pacemaker and ensuring correct synchronization of the internal clock with the envi ...

2016

Fast Initial Continuous Current Pulses vs Return Stroke Pulses in Tower-initiated Lightning

Mario Paolone, Marcos Rubinstein, Mohammad Azadifar, Stefan Metz, Davide Pavanello

We present a study focused on pulses superimposed on the initial continuous current of upward negative discharges. The study is based on experimental data consisting of correlated lightning current waveforms recorded at the instrumented Santis Tower in Swi ...

Amer Geophysical Union2016

Modeling and control of large salient-pole synchronous hydro generators and stability issues in isolated production mode

Christophe Nicolet, Basile Kawkabani, Alexander Schwery

This paper presents the modeling, simulation and analysis of the dynamic behavior of a hydroelectric power plant of 2x343 MVA including hydraulic system, electrical installations, rotating inertias and control systems. First, the modeling of the electrical ...

Ieee2013

Towards Reliable Stochastic Data-Driven Models Applied to the Energy Saving in Buildings

Nicolas Morel, Jean Hennebert, Nikolaos Zarkadis

We aim at the elaboration of Information Systems able to optimize energy consumption in buildings while preserving human comfort. Our focus is in the use of state-based stochastic modeling applied to temporal signals acquired from heterogeneous sources suc ...

EPFL Solar Energy and Building Physics Laboratory (LESO-PB)2013

Coupled Optical and Electronic Modeling of Dye-Sensitized Solar Cells for Steady-State Parameter Extraction

Michael Graetzel, Guido Rothenberger, Sophie Wenger, Matthias Schmid

The design and development of dye-sensitized solar cells (DSCs) is currently often realized on an empirical basis. In view of assisting in this optimization process, we present the framework of a model which consists in a coupled optical and electrical mod ...

American Chemical Society2011

Vulnerability Assessment of Electric Power Supply under Extreme Weather Conditions

Raphaël Barben

This thesis analyses and models the vulnerability of the electricity power supply under extreme weather conditions. The system under study is the electric supply system that includes major power plants to main load centers. Extreme weather conditions can c ...

EPFL2010

Large industrials and electricity sourcing during the process of liberalization Power sourcing strategies according to different market structures

Luis Treviño Villarreal

Power sourcing for large industrials has changed since many countries began to restructure their electric sectors. Before, energy sourcing was limited to a set of products offered by electric companies under regulation. Nowadays, deregulation of electricit ...

2008

Analysis of large scale hydrodynamic phenomena in turbine draft tubes

Monica Iliescu

Hydraulic power is a renewable energy with a very advantageous price, and its flexibility of use coupled with its storage possibilities easily enables to meet the peak demand. Refurbishment of old hydraulic power plants is an important topical issue and th ...

EPFL2007

Spatio-Temporal Nonrigid Registration for Ultrasound Cardiac Motion Estimation

Michaël Unser, Michael Sühling

We propose a new spatio-temporal elastic registration algorithm for motion reconstruction from a series of images. The specific application is to estimate displacement fields from two-dimensional ultrasound sequences of the heart. The basic idea is to find ...

IEEE2005

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