Publications by Laurent Gabriel Félix Alexandre Stéphane Bungener

Virtual Sector Profiles for Innovation Sharing in Process Industry – Sector 01: Chemicals

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Elfie Marie Méchaussie, Greta Martha Van Eetvelde, Ivan Daniel Kantor

Production data in process industry are proprietary to a company since they are key to the process design and technology expertise. However, data confidentiality restrains industry from sharing results and advancing developments in and across process secto ...

Springer International Publishing2017

Methodology for streams definition and graphical representation in Total Site Analysis

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Elfie Marie Méchaussie, Greta Martha Van Eetvelde

The current regulatory framework in Europe regarding industrial energy consumption puts emphasis on regular energy assessments and increasing energy efficiency. Among the available strategies to identify energy savings opportunities, Total Site Analysis (T ...

2016

Energy Efficiency and Integration in the Refining and Petrochemical Industries

Laurent Gabriel Félix Alexandre Stéphane Bungener

Industrial sites and their associated energy systems are estimated to be responsible for 31% of worldwide energy consumption. Improving their energy efficiencies has the potential to reduce production costs of industrial sites and contribute towards the 20 ...

EPFL2016

Typical Industrial Cluster - Chemistry/refinery/petrochemistry

Laurent Gabriel Félix Alexandre Stéphane Bungener

A refinery and petrochemical site are described in the document. Data for the steam consumption and production of the cluster's process units are also described. The cluster can be broken down into two individual sites made up of process units and process ...

2016

Optimal Operations and Resilient Investments in Steam Networks

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde

Steam is a key energy vector for industrial sites, most commonly used for process heating and cooling, cogeneration of heat and mechanical power as a motive fluid or for stripping. Steam networks are used to carry steam from producers to consumers and betw ...

2016

Resilient decision making in steam network investments

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde

Steam is a key energy vector for industrial sites, used for process heating, direct injection and stripping, tracing and cogeneration of mechanical power. Steam networks transport steam from producers to consumers and across different pressure levels. The ...

The Italian Association of Chemical Engineering2015

Optimisation of unit investment and load shedding in a steam network facing undercapacity

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde

Steam networks and their utilities should be dimensioned to satisfy day-to-day demand as well peaks. Peaks can be caused by unit start-ups, extreme weather conditions or combinations of high demand from process units. During maintenance operations or unexp ...

2015

Multi-period analysis of heat integration measures in industrial clusters

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde, Roman Hackl

TSA (total site analysis) has shown to be an efficient tool for identifying heat integration measures in industrial clusters, leading to the optimal design of utility systems and energy bill reduction. In order to justify investments, any proposed utility ...

2015

A methodology for creating sequential multi-period base-case scenarios for large data sets

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Greta Martha Van Eetvelde

Key performance indicators in engineering problems include but are not limited to financial, operational, management and environmental factors, which are significantly affected by aspects such as seasonality, fouling, economic climate, production rates, su ...

AIDIC Servizi2013

Multi-Objectives, Multi-Period Optimization of district heating networks Using Evolutionary Algorithms and Mixed Integer Linear Programming (MILP)

François Maréchal, Laurent Gabriel Félix Alexandre Stéphane Bungener, Samira Fazlollahi

Elsevier2012

High-Efficiency Solid-State Dye-Sensitized Solar Cells: Fast Charge Extraction through Self-Assembled 3D Fibrous Network of Crystalline TiO2 Nanowires

László Forró, Michael Graetzel, Shaik Mohammed Zakeeruddin, Arnaud Magrez, Laurent Gabriel Félix Alexandre Stéphane Bungener, Jérémie Minh-Châu Brillet, Nicolas Tétreault, Rita Smajda, Endre Horvath, Thomas Moehl, Peng Wang

Herein, we present a novel morphology for solid-state dye-sensitized solar cells based on the simple and straightforward self-assembly of nanorods into a 3D fibrous network of fused single-crystalline anatase nanowires. This architecture offers a high roug ...

American Chemical Society2010