Publications related to Diesel generator

Maintenance and optimization of the TCV power supply

Damien Fasel, Ugo Siravo, Jérémie Dubray

The TCV tokamak is powered by a flywheel generator to supply the magnetic coils and the auxiliary heating systems. The generator has just undergone its fourth major overhaul to make it ready for the next ten years, after more than thirty years of almost tr ...

Elsevier Science Sa2024

Study of flexible operating conditions in variable-speed hydraulic turbines : advanced models and experimental validation

Martin Seydoux

The global imperative to transition from fossil fuel-based energy sources to renewable alternatives has become increasingly urgent in the pursuit of sustainable and renewable power generation. This paradigm shift necessitates innovative approaches to manag ...

EPFL2024

Homogenization results for the generator of multiscale Langevin dynamics in weighted Sobolev spaces

Andrea Zanoni

We study the homogenization of the Poisson equation with a reaction term and of the eigenvalue problem associated to the generator of multiscale Langevin dynamics. Our analysis extends the theory of two-scale convergence to the case of weighted Sobolev spa ...

OXFORD UNIV PRESS2023

Distributed Scheme for Line Overload Mitigation With Linearized AC Power Flow

Ping Hu, Li Ding

The transmission overload after a disturbance poses significant security risk to the power system. Once it happens, an efficient remedial action must be taken to relieve the line overloads as quickly as possible. The line overload mitigation problem become ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Pollution mask for the continuous corrected particle number concentration data in 1 min resolution, measured in the Swiss aerosol container during MOSAiC 2019/2020

Julia Schmale, Ivo Fabio Beck, Andrea Baccarini, Hélène Paule Angot

This dataset contains a pollution flag in 1 min time resolution. It is derived by the pollution detection algorithm (PDA) based on the corrected particle number concentration data (DOI upcoming) measured during the year long MOSAiC expedition from October ...

Zenodo2022

A performance-driven simulation workflow for PV integration into the design process: application on an innovative building project in Switzerland

Sergi Aguacil Moreno

In the construction sector, the integration of active elements functioning both as building envelope material and on-site electricity generator is identified as a key measure to achieve the 2050 targets and carbon neutrality (Aguacil Moreno, 2019; Aguacil ...

2021

Effect of Short Reducing Pulses on the Dynamic Structure, Activity, and Stability of Pd/Al2O3 for Wet Lean Methane Oxidation

Oliver Kröcher, Davide Ferri

Natural gas is a suitable alternative to gasoline and diesel fuels to decrease the carbon footprint of the mobility and energy sectors. Unburnt CH4 is typically removed from the exhaust using palladium-based catalysts, which suffer from thermal deactivatio ...

AMER CHEMICAL SOC2021

Deexcitation Characterization for Power Supply Protection in DC Shipboard Power Systems

Drazen Dujic, Seongil Kim

The deexcitation of a synchronous machine has been used for the protection of the power supply based on a diode rectifier in marine dc power distribution networks. The fault current from the generator can be eliminated with the protection method utilizing ...

IEEE2020

Active renovation strategies with building-integrated photovoltaics (BIPV). Application on an early 20th century multi-family building

Sergi Aguacil Moreno, Emmanuel Rey

Tomorrow's cities are already largely built, as much of the existing building stock – with a low level of energy performance – will still be standing in 2050. Urban renewal processes therefore play an essential role towards the sustainable transition of Eu ...

2020

Mitigating the impact of distributed PV in a low-voltage grid using electricity tariffs

Christophe Ballif, Nicolas Würsch, Lionel Benjamin Bloch, Jordan Holweger

A high share of distributed photovoltaic (PV) generation in low-voltage networks may lead to over-voltage, and line/transformer overloading. To mitigate these issues, we investigate how advanced electricity tariffs could ensure safe grid operation while en ...

2020

Exploring the Robustness of Building-Integrated Photovoltaics Renovation Scenarios to Climate Change Perspectives: Results for a multi-family building in the Swiss context

Sergi Aguacil Moreno, Emmanuel Rey, Émilie Nault

Building renovation is one of the main strategies put forth in western countries, where energy regulations are becoming increasingly demanding. Switzerland for example has set the ambitious target aiming at carbon neutrality for 2050. Building-integrated p ...

Universidade da Coruña2020

Performance evaluation of diesel engines (PEDE) for a diesel-biodiesel fueled CI engine using nano-particles additive

Hossein Pourrahmani

yy Today's researchers have made concerted efforts to benefit from biodiesel and to achieve better combustion due to its higher cetane number in comparison to that of diesel. The major drawback of utilizing biodiesel-diesel blend is the corresponding incre ...

Elsevier2019

A low-cost, autonomous mobile platform for limnological investigations, supported by high-resolution mesoscale airborne imagery

David Andrew Barry, Ulrich Lemmin, Htet Kyi Wynn, Anton Ivanov, Beat Marcel Geissmann, Abolfazl Irani Rahaghi, Stepan Tulyakov, Philippe Olivier Paccaud, Ludovic Zulliger, Nawaaz Sidharth Gujja Shaik, Jean-Luc Liardon, Jérôme Béguin, Pascal Klaus

Two complementary measurement systems – built upon an autonomous floating craft and a tethered balloon – for lake research and monitoring are presented. The autonomous vehicle was assembled on a catamaran for stability, and is capable of handling a variety ...

2019

Active surfaces selection method for building-integrated photovoltaics (BIPV) in renovation projects based on self-consumption and self-sufficiency

Sophie Lufkin, Sergi Aguacil Moreno, Emmanuel Rey

In light of the Paris Agreement’s objectives and the related European and Swiss goals of decarbonising the built environment, the importance, relevance, and potential benefits of integrating Building-Integrated Photovoltaic (BIPV) within building renovatio ...

2019

Supply Grid Synchronization and Operation of a Filterless Cascaded H-Bridge based Grid Emulator

Drazen Dujic, Nicolai Hildebrandt

Steadily increasing requirements for grid connected converters, their growing unit power and output voltage call for flexible high-power medium-voltage grid emulators. Four-quadrant Cascaded H-Bridge (CHB) topology features high output voltage resolution a ...

IEEE2019

A Supervisory Control Structure for Voltage-Controlled Islanded DC Microgrids

Giancarlo Ferrari Trecate, Pulkit Nahata, Alessio La Bella

In this work, we propose a supervisory control structure in islanded DC microgrids such that a well scheduled and balanced utilization of various resources is achieved. Our supervisory control layer rests on top of a voltage-controlled primary layer and co ...

2019

Design of High Permittivity Polysiloxane Elastomers for Dielectric Elastomer Transducers

Philip Horst Caspari

Dielectric elastomer transducers consist of a dielectric elastomer between two compliant electrodes. When the elastic capacitor is electrically charged, the dielectric elastomer elongates until a balance of elastic and electrostatic force is reached. Elect ...

EPFL2019

A wall-aligned grid generator for non-linear simulations of MHD instabilities in tokamak plasmas

Olivier Sauter, Ambrogio Fasoli, Basil Duval, Stefano Coda, Jonathan Graves, Yves Martin, Duccio Testa, Patrick Blanchard, Henri Weisen, Alessandro Pau, Mikhail Maslov, Cristian Sommariva, Federico Nespoli, Richard Pitts, David Pfefferlé, Yann Camenen, Jonathan Marc Philippe Faustin, Jan Horacek, Hamish William Patten, Javier García Hernández, Samuel Lanthaler, Marco Wischmeier, Nicola Vianello, Yao Zhou, Davide Galassi, Antonio José Pereira de Figueiredo, Liang Yao, Dalziel Joseph Wilson, Bernhard Sieglin, Otto Asunta

Block-structured mesh generation techniques have been well addressed in the CFD community for automobile and aerospace studies, and their applicability to magnetic fusion is highly relevant, due to the complexity of the plasma-facing wall structures inside ...

ELSEVIER2019

Triboelectric effect to harness fluid flow energy

Danick Briand, Rubaiyet Iftekharul Haque, Amr Yehia Hussien Mahmoud Arafat

We are reporting energy scavenging from fluid flows inside tubular structures using triboelectric effects. Two separate designs of triboelectric generators are proposed. A tubular design that uses liquid-solid interaction mechanism for water, and freestand ...

IOP PUBLISHING LTD2019

Model-based economic analysis of electrification in railway - Understanding the impact of track, operations, and uncertainties

Michel Bierlaire, Nikola Obrenovic, Florian Mueller

This paper presents results on the impact of different tracks on the economic viability of track electrification for regional railway. Since regional railway still heavily relies on pollutive diesel propulsion systems, track electrification can be key to r ...

2019