References of "Léonard, Angélique"
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See detailEnergy efficiency of sludge drying processes
Léonard, Angélique ULg; Crine, Michel ULg; Arlabosse, Patricia

Conference (2011, November 17)

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See detailGénie des procédés chimiques et développement durable
Léonard, Angélique ULg

Conference given outside the academic context (2011)

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See detailWEEE management using LCA methodology : the fridge case study
Belboom, Sandra ULg; Renzoni, Roberto ULg; Deleu, Xavier et al

Poster (2011, November 03)

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See detailLife cycle assessment of carbon xerogels
Melon, Raphaëlle ULg; Renzoni, Roberto ULg; Léonard, Alexandre ULg et al

Poster (2011, November 03)

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See detailEnvironmental impact of photovoltaic power by Life Cycle Assessment
Gerbinet, Saïcha ULg; Belboom, Sandra ULg; Léonard, Angélique ULg

in Conference Proccedings - Volume 1 : Academic Papers (2011, November 03)

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See detailEnvironmental performance of waste management through years using Life Cycle Assessment
Belboom, Sandra ULg; Renzoni, Roberto ULg; Digneffe, Jean-Marc et al

Conference (2011, November 03)

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See detailWEEE management using LCA methodology : the fridge case study
Belboom, Sandra ULg; Renzoni, Roberto ULg; Deleu, Xavier et al

in Conference Proccedings - Volume 1 : Academic Papers (2011, November)

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See detailStudy of Conduction Mechanisms in Antistatic Felts at the Mesoscopic Scale
Boutaayamou, Mohamed ULg; Léonard, Angélique ULg; Vanderheyden, Benoît ULg et al

in Proceedings of the International Symposium on New Frontiers in Fiber Materials Science (Fibers2011) (2011, October 11)

This work is part of a project that deals with the optimization of the quantity and the nature of conductive fibers in antistatic felts used for filtering and sieving powders. Our research concerns the ... [more ▼]

This work is part of a project that deals with the optimization of the quantity and the nature of conductive fibers in antistatic felts used for filtering and sieving powders. Our research concerns the electrical properties at the mesoscopic scale. It aims at determining the conduction mechanisms and the distribution of the electric potential at the scale of the distance between the conductive fibers. In this paper, current-voltage (I-V) measurement results are presented and discussed. X-ray microtomography is used to obtain the geometry of the conductive fibers inside the felts before and after these I-V tests. The studied textile material is based on polyester fibers and stainless steel conductive fibers. [less ▲]

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See detailMicrostructure characterisation of nanocomposite polymeric foams by X-ray microtomography
Plougonven, Erwan ULg; Marchot, Pierre ULg; Detrembleur, Christophe ULg et al

Poster (2011, September 21)

Recent advances in microstructured materials have given rise to many new types of composites that exhibit original and interesting physical properties. For example, a nanocomposite made of carbon ... [more ▼]

Recent advances in microstructured materials have given rise to many new types of composites that exhibit original and interesting physical properties. For example, a nanocomposite made of carbon nanotubes inside a polymer matrix shows exceptional electromagnetic interference shielding effectiveness when foamed. However, the effective properties of such materials strongly depend on the shape and topology of the microstructural cells. An accurate method for investigating the cellular microstructure is X-ray microtomography (XRµT), for it is non-destructive, and it provides 3D geometric information. Although it cannot be used to observe nanofiller dispersion, it has a strong potential for cell structure characterization. In order to reduce the need for trial and error for tailoring these materials, our objective is to characterize, using XRµT, two different types of foaming procedures, namely supercritical CO2 batch foaming and freeze drying. As the resolution is limited compared to cell size, we have developed a novel statistical method based on 3D autocorrelation to determine characteristic length and examine anisotropy. We present results for these two types of foams and show the limitations of this method. [less ▲]

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See detailImproving bioethanol production by increasing sugar beet crop yield
Belboom, Sandra ULg; Léonard, Angélique ULg

in CAB Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources (2011), 6(24), 1-10

This review presents a summary of published papers about the improvement of sugar beet yield and its transformation into bioethanol. After situating the current political and economic context of the sugar ... [more ▼]

This review presents a summary of published papers about the improvement of sugar beet yield and its transformation into bioethanol. After situating the current political and economic context of the sugar beet crop, influence of factors during the crop growth is studied. Main factor influencing the crop yield and, consequently the bioethanol yield is the weather variability. Others parameters as climate change, fertilizer and crop management are evocated and explained in further paragraphs. Irrigation takes also place in semi-arid countries and plays a role in the different results. After the overview of the crop growth conditions, the sugar beet transformation into bioethanol has been pointed out with the most energetic steps, the different available raw materials from sugar beet and the optimal parameters to get the highest possible yield in terms of bioethanol. To provide economics on bioenergy production, the goal is to obtain the highest yield available in terms of sugar beet, sugar and then bioethanol. Some savings can be made with energy reduction during the fermentation or distillation steps. A sole guideline to reach this goal is not available because of the variability of the parameters depending on the location and on the weather forecasts. [less ▲]

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See detailImpact environnemental des procédés de valorisation des boues : revue des ACV réalisées
Belboom, Sandra ULg; Léonard, Angélique ULg

Conference given outside the academic context (2011)

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See detailEfficacité énergétique des procédés de séchage de boues d'épuration
Léonard, Angélique ULg; Arlabosse, Patricia

Conference (2011, May 19)

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See detailMethodology for the characterization of the microstructure of nanocomposite polymeric foams using X-ray microtomography
Plougonven, Erwan ULg; Marchot, Pierre ULg; Detrembleur, Christophe ULg et al

in Micro-CT User Meeting Abstract Book (2011, April 13)

Polymeric foams used in electromagnetic shielding applications are characterized using X-ray microtomography. These foams contain a conductive nanometric reinforcement, carbon nanotubes, but the scale of ... [more ▼]

Polymeric foams used in electromagnetic shielding applications are characterized using X-ray microtomography. These foams contain a conductive nanometric reinforcement, carbon nanotubes, but the scale of characterization described here is that of the microscopic cells. Although nanotube dispersion is important for the final properties of the material, the structure and distribution of the porosity also play a role in terms of dielectric constant and conductivity. Unfortunately, cell wall thinness and limited resolution of laboratory microtomographs makes poper cell identification difficult. Therefore we present a new statistical method based on the 3D autocorrelation function, that allows to some extent to measure mean cell size and structure anisotropy. [less ▲]

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See detailWEEE management using LCA methodology : the fridge case study
Belboom, Sandra ULg; Renzoni, Roberto ULg; Deleu, Xavier et al

Poster (2011, March 01)

This study is based on WEEE life cycle assessment and more particularly on treatment and valorization of fridges and freezers. Two scenarios were envisaged: situation before fridge collect and the Belgian ... [more ▼]

This study is based on WEEE life cycle assessment and more particularly on treatment and valorization of fridges and freezers. Two scenarios were envisaged: situation before fridge collect and the Belgian current situation where all national fridges are treated in Liège. Results of this study prove the importance of collecting and valorizing fridges especially for old fridges containing refrigerant banned by the Montreal Protocol. Recovery and incineration of the pollutants permit to reduce climate change and ozone depletion impacts. [less ▲]

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