Turbine-electric powertrain

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Electrochemical systems for hydrogen fuel cell and battery electric vehicle infrastructure

Yorick Ligen

Thermodynamics and heat engines are the core disciplines which enabled the development of the thermo-industrial society during the 20th century. Liquid hydrocarbon fuels are one of the easiest and most convenient solutions offered by the thermophysical con ...

EPFL2020

Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission

Jan Van Herle, Jürg Alexander Schiffmann, Patrick Hubert Wagner

A micro steam turbine with a tip diameter of 15 mm was designed and experimentally characterized. At the nominal mass flow rate and total-to-total pressure ratio of 2.3 kg/h and 2, respectively, the turbine yields a power of 34 W and a total-to-static isen ...

2021

Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission

Jan Van Herle, Jürg Alexander Schiffmann, Patrick Hubert Wagner

A micro steam turbine with a tip diameter of 15mm was designed and experimentally characterized. At the nominal mass flow rate and total-to-total pressure ratio of 2.3 kgh-1 and 2, respectively, the turbine yields a power of 34W and a total-to-static isent ...

2021

Thermo-economic optimization of a Solid Oxide Fuel Cell - Gas Turbine system fuelled with gasified lignocellulosic biomass

François Maréchal, Adriano Viana Ensinas, Laurence Tock, Priscilla Caliandro

Within the context of sustainable energy supply and CO2 emissions reduction a Solid Oxide Fuel Cell (SOFC) - Gas Turbine hybrid system, fuelled with gasified woody biomass for medium scale applications (8MWth,BM of dry biomass) is studied in detail. The sy ...

2013

Multilevel Modular DC/DC Converter for Regenerative Braking Using Supercapacitors

Alfred Rufer, Daniel Montesinos Miracle

Regenerative braking is presented in many electric traction applications such as electric and hybrid vehicles, lifts and railway. The regenerated energy can be stored for future use, increasing the efficiency of the system. This paper outlines the benefits ...

2012

New microwave sensing system for blade tip clearance measurement in gas turbines

Anja Skrivervik, Marc Hafner, Maddalena Violetti

Real-time clearance control in turbine engines allows improving their efficiency and safety, by enabling prognostics and optimized condition-based maintenance in the turbine hot section. This paper presents a novel 24 GHz microwave sensing system for real- ...

Ieee2012

Design of antenna based microwave sensors for blade tip clearance measurement in gas turbine

Anja Skrivervik, Jean-François Zürcher, Maddalena Violetti

Real time tip clearance measurement in gas turbines and other rotating machinery is an interesting way to provide enhanced reliability, cost effective maintenance and more overall safety. This paper presents a novel microwave sensor for blade tip clearance ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Electric Drive System for Automatic Guided Vehicles Using Contact-free Energy Transmission

Marcel Jufer

Four technologies, combining mainly innovative solutions, offer the possibility of clean and flexible vehicles, all using only electricity. The main common components are contact-free energy transmission, storage on super-capacitors, holonome axles integra ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Electric Drive System for Automatic Guided Vehicles Using Contact-free Energy Transmission

Marcel Jufer

2008

Thermo-economic Optimization of a Solid Oxide Fuel Cell, Gas Turbine Hybrid System

François Maréchal, Daniel Favrat, Jan Van Herle, Nordahl Autissier, Francesca Palazzi

Large scale power production benefits from the high efficiency of gas-steam combined cycles. In the lower power range, fuel cells are a good candidate to combine with gas turbines. Such systems can achieve efficiencies exceeding 60%. High temperature Solid ...

2007

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Electrochemical systems for hydrogen fuel cell and battery electric vehicle infrastructure

Yorick Ligen

EPFL2020

Theoretical and Experimental Investigation of a 34 Watt Radial-Inflow Steam Turbine with Partial-Admission

Jan Van Herle, Jürg Alexander Schiffmann, Patrick Hubert Wagner

2021

Thermo-economic optimization of a Solid Oxide Fuel Cell - Gas Turbine system fuelled with gasified lignocellulosic biomass

François Maréchal, Adriano Viana Ensinas, Laurence Tock, Priscilla Caliandro

2013