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François Maréchal

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Related publications (437)

Thermo-environomic evaluation of the ammonia production

François Maréchal, Laurence Tock, Matthieu Perrenoud

Within the global challenge of sustainable energy supply and greenhouse gas emissions mitigation, carbon capture and storage (CCS) and the deployment of renewable resources are considered as promising solutions. In this context, the production of ammonia m ...

SFGP2013

Site-scale process integration and utility optimization with multiple representations of heating and cooling requirements: Application to an existing chemical plant

François Maréchal, Nasibeh Pouransari

This study presents a methodology based on the process integration techniques and multiple representation of heating and cooling requirement concept to improve the energy efficiency of a large-scale chemical plant. Considering the difficulties of data gath ...

2013

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

François Maréchal, Laurence Tock, Adriano Viana Ensinas, 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

Integrating rate based models into multi-objective optimisation of process designs using surrogate models

François Maréchal, Levent Sinan Teske

Multi-objective optimisation (MOO) of super-structured process designs are expensive in CPU- time because of the high number of potential configurations and operation conditions to be calculated. Thus single process units are generally represented by simpl ...

2013

MEU: An urban energy management tool for communities and multi-energy utilities

Gaëtan Cherix, François Maréchal, Massimiliano Capezzali, Jakob Moritz Fabian Rager, Damien Rebeix

In order to facilitate urban energy management and energy planning, the project MEU developed a web based tool as a decision support system for decision makers. Using a web based approach minimizes the effort on the client site as no software needs to be i ...

2013

Optimal Design of Solar Assisted Hydrothermal Gasification for Microalgae to Synthetic Natural Gas Conversion

Gianluca Ambrosetti, François Maréchal, Alberto Mian, Adriano Viana Ensinas

Catalytic hydrothermal gasification is a promising technology which allows the conversion of wet biomass into methane rich syngas. It consists of three major steps, in which thermal energy has to be supplied at different temperature levels, leading to mult ...

2013

Energy efficiency improvement by applying thermodynamic optimization of distillation columns in the site scale integration

François Maréchal, Nasibeh Pouransari

This study aims to improve the energy efficiency of an industrial site by applying the thermodynamic analysis of distillation columns together with the total site integration (TSI). Several methods have been proposed in the literatures for the thermodynami ...

2013

La capture de CO2 dans les centrales électriques

François Maréchal, Laurence Tock

La capture et le stockage du CO2 est considéré comme une alternative prometteuse pour atteindre les objectifs de réduction des émissions de carbone de la production d’électricité. En appliquant une stratégie d’optimisation thermo-environomique, le bénéfice ...

2013

Energy integration optimisation of chilled ammonia process for CO2 capture

François Maréchal, Laurence Tock

Within the global challenge of climate change mitigation, CO2 capture and storage is regarded as a potential option to reduce the CO2 emissions in power plants. The most common technology to capture CO2 is chemical absorption with amines, requiring however ...

2013

Dynamic Modeling and Simulation of Two-phase Evaporators and Condensers in the context of a CO2 Based District Energy Network

Daniel Favrat, François Maréchal, Samuel Henchoz

A new type of district energy network has recently been proposed that is based on the use of CO2 as a heat transfer fluid. It uses the latent heat of vaporization, instead of sensible heat, to store and transfer heat. Previous studies have focused on demon ...

2013

Heat pump integration in a cheese factory

François Maréchal, Helen Carla Becker

The aim of process integration is to increase the efficiency and to reduce the energy consumption, operating costs and CO 2 emissions of an industrial process. The proposed methodology is applied to a real case study of a cheese factory with non-simultaneo ...

2012

Process design optimization strategy to develop energy and cost correlations of CO2 capture processes

François Maréchal, Laurence Tock

Elsevier2012

Optimal greenhouse gas emissions in NGCC plants integrating life cycle assessment

François Maréchal

2012

Targeting industrial heat pump integration in multi-period problems

François Maréchal, Helen Carla Becker

Elsevier2012

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

Methods for multi-objective investment and operating optimization of complex energy systems

François Maréchal, Samira Fazlollahi

2012

CO2 Mitigation in Thermo-Chemical Hydrogen Processes: Thermo-Environomic Comparison and Optimization

François Maréchal, Laurence Tock

Elsevier2012

Environomic optimal design and synthesis of energy conversion systems in urban areas

François Maréchal, Léda Gerber, Samira Fazlollahi

Elsevier2012

Proposition of methodology for optimization of energy system design under uncertainty

François Maréchal, Matthias Dubuis

Current superstructure size for energy system design is increasing with computing facility improvement. Despite such approach allows to link and to analyse a lot of elements, demonstrating the advantage of a global optimization, non-negligible uncertaintie ...

Elsevier Science Bv2012

Platform development for studying integrated energy conversion processes: Application to a power plant process with CO2 capture

François Maréchal, Laurence Tock

This paper presents the development of a platform for studying, designing and optimizing complex integrated energy systems. Technology models representing the physical behavior are separated from thermo-economic analysis and multi-objective optimization in ...

Elsevier Science Bv2012

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