A5056244416- Silicon Carbide Semiconductor Technologies
- Advanced DC-DC Converters
- Landfill Environmental Impact Studies
- HVDC Systems and Fault Protection
- Multilevel Inverters and Converters
- Electromagnetic Compatibility and Noise Suppression
- Groundwater flow and contamination studies
- Municipal Solid Waste Management
- Geotechnical Engineering and Soil Stabilization
- Grouting, Rheology, and Soil Mechanics
- Odor and Emission Control Technologies
- Fuel Cells and Related Materials
- Infrastructure Maintenance and Monitoring
- Advanced Chemical Sensor Technologies
- Industrial Engineering and Technologies
- Chromium effects and bioremediation
- Mining and Gasification Technologies
- Soil and Unsaturated Flow
- Heavy metals in environment
- Environmental Toxicology and Ecotoxicology
- Composting and Vermicomposting Techniques
- Vehicle emissions and performance
- Electrostatic Discharge in Electronics
- Environmental Sustainability and Technology
- Advancements in Semiconductor Devices and Circuit Design
Supergrid Institute
2015-2020
Solvay (France)
2020
Laboratoire Plasma et Conversion d'Energie
2016
Veolia (France)
2007-2010
Agence de la transition écologique
2010
University of Illinois Chicago
2009
Lawrence Technological University
2009
Veolia (Sweden)
2009
École Nationale Supérieure de Céramique Industrielle
2001
This paper describes a comprehensive laboratory study performed to investigate the compressibility and shear strength properties of 1.5-year-old municipal solid waste (MSW) exhumed from landfill cell where low amounts leachate were recirculated. The results are compared with previous on fresh MSW collected same data studies known age assess variation in due degradation. Laboratory testing was conducted shredded landfilled that consisted similar particle-size distribution, maximum particle...
This paper presents a laboratory investigation of hydraulic conductivity municipal solid waste (MSW) in landfills and provides comparative assessment measured values with those reported the literature based on field studies. A series tests was conducted using shredded fresh landfilled MSW from Orchard Hills landfill (Illinois, United States) two different small-scale large-scale rigid-wall permeameters triaxial permeameter. Fresh collected working phase, while exhumed borehole cell subjected...
The study presented in this paper has been initiated by the Veolia Environment research center for waste management and supported French Environmental Agency. A comparison of five field-scale measurement methods measuring fugitive methane emissions conducted on a landfill site. evaluated consisted tracer gas technique, laser radial plume mapping, inverse modeling differential absorption light detection ranging (LiDAR), helicopter-borne spectroscopy. These are their abilities to measure from...
In 1998, the U.S. Environmental Protection Agency (EPA) initiated a major air quality program known as Particulate Matter (PM) Supersites Program. The Program was multiyear, $27 million monitoring consisting of eight regional projects located throughout United States, each with differing atmospheric pollution conditions resulting from variations in source emissions and meteorology. overall goal to elucidate source-receptor relationships processes leading PM accumulation on urban scales; thus...
AbstractThis paper presents the results of laboratory investigation performed to determine geotechnical properties synthetic municipal solid waste (SMSW) simulating typical composition (MSW) generated in United States. Initial characterization SMSW was through determination particle size distribution, moisture content, and organic content. Hydraulic conductivity, compression ratio, shear strength were studied for their variation significance replicate testing. conductivity ranged between 1.2...
High-voltage direct current (HVDC) is more and often implemented for long distance electrical energy transmission, especially off-shore wind farms. In this study, a full DC farm, which requires high-power high-voltage DC/DC converter, considered. order to reduce the size of trend increase operating frequency. Silicon carbide (SiC) metal–oxide–semiconductor field-effect transistors (MOSFETs) are becoming industrially available give scope realisation high-performance converters based on...
To produce cleaner electrical energy, a lot of European countries have decided to develop off shore wind farms. connect these farms the grid, an HVDC link seems be best solution when distance is important. Actually, turbines generate low frequency AC voltage and they are connected line with LCCs or VSCs. The proposed in this paper consists taking out intermediate medium stage farm. For power transmission, DC directly stepped-up by insulated DC-DC converters operating at (10 kHz) order reduce...
This article presents the design, fabrication, and test of an isolated DC-DC converter for renewable energy applications. The is based on Dual Active Bridge topology uses silicon carbide power semiconductors a medium frequency transformer. design process covers hardware ranging from semiconductor die to complete converter. For control, rapid prototyping approach was used. experimental validation 100 kW prototype presented.
The article presents a three-phase Medium Frequency Transformer being part of 100kW 1.2kV 20kHz Dual Active Bridge DC-DC converter. transformer design is detailed focusing on winding and core power loss calculation. high MFT prototype presented. experimental results include the impedance characteristics, no load test DAB full waveforms.
The silicon carbide (SiC) power semiconductor and the medium frequency transformer (MFT) are two enabling technologies that allowing efficiencies densities of electronic converters to be pushed beyond limits those have previously been possible; solidstate (SST), with its viability based in part upon aforementioned technologies, has much potential offer Rail, Marine, Aviation Smart-Grid applications due high performance operation compact form-factor so it is studied in-depth this paper, where...
The paper describes the design methodology of a novel Triple Active Bridge cell used as building block for modular DC-DC converters. intended application is Medium Voltage Direct Current grids, such DC collector offshore wind farms. latest generation SiC MOSFET semiconductors utilized to operate in medium frequency range while optimizing efficiency. dimensioning main components, including semiconductors, transformer and capacitors presented. mechanical integration cooling are also addressed.
In the new electrical grids, series/parallel converters architectures can be considered for medium and high voltage power conversion. Dual Active Bridge (DAB) topology is a serious candidate to implemented within these converters. order increase density, trend operate with higher switching frequency. Thanks Zero Voltage Switching (ZVS) operation, DAB allows losses reduced. Theoretically, ZVS operation range depends only on operating of converter. reality, since parasitic elements are...
The development and use of a pre-concentrator-thermo-desorber/micro-gas chromatograph/mass spectrometer (μTD/μGC/MSD) coupling for the on-site analysis VOCs in landfill gases are presented. has advantage analysing compounds with two detectors operated series: TCD (of μGC) initially analyses gas without destroying it, then MSD identifies compounds. Due to response, results were quantified reference toluene. reliability analytical chain quantitative was validated by sampling gaseous standards,...
New power module prototypes are being designed to take advantage of the high operating temperature and density benefits using SiC chips. Thus, monitoring distribution in is critical. This work investigates a Infrared Thermography steadystate transient test conditions. The methodology, results observations from tests discussed this work.
A 100 kW, isolated dc-dc converter was built over the course of one year, starting from a blank page. This paper details design and manufacturing process, reflects in particular on strengths weaknesses computer-based modelling simulation tools.
Batch and column tests allowed estimation of the mobilization pollution standard domestic waste in leachate biogas. Three laboratory (biochemical methane potential (BMP), tank leaching test (TLT), tests) have been applied to evaluate emission pollutants liquid and/or gas phase from reconstituted municipal solid (MSW) on basis French waste. In case batch (BMP TLT), BMP indicated a maximum organic carbon share produced by (biogas potential) equal 59% initial carbon. The quantity likely be...
The Dual Active Bridge appears as a promising DC-DC converter topology when galvanic isolation and bidirectional power flow are required. Among its advantages, Zero Voltage Switching allows the switching losses to be significantly reduced. For high applications, three-phase variant may interesting in order reach higher density, especially transformer is implemented instead of three single-phase transformers. Moreover, vector group offers new degree freedom for designers. In this paper,...
This paper presents a system-level EMI investigation in new 3-phase 1.2kV 100kW insulated DC/DC converter. In this prototype, achieving full operation was prevented by false triggering of semiconductors due to large common-mode current through gate drivers. A passive filter embedded into the structure transformer connect it ground is proposed as corrective and cost effective solution mitigate electromagnetic interferences. New grounding layout enabled reduce drivers up 75% without decreasing...