Publications by Anna Sophia Wallerand

A Holistic Methodology for Optimizing Industrial Resource Efficiency

François Maréchal, Maziar Kermani, Adriano Viana Ensinas, Anna Sophia Wallerand, Ivan Daniel Kantor, Julia Granacher

Efficient consumption of energy and material resources, including water, is the primary focus for process industries to reduce their environmental impact. The Conference of Parties in Paris (COP21) highlighted the prominent role of industrial energy effici ...

2019

Wastewater management towards a sustainable future. Dairy production: a study case

François Maréchal, Hür Ebuzer Bütün, Anna Sophia Wallerand, Ivan Daniel Kantor, Rafael Amorim Leandro De Castro Amoedo

The increasing demand for heat, electricity, fuels and chemicals is pushing natural resources towards a non-reversible situation. Current solutions have to be adapted, and alternative (desirably sustainable) sources have to be found. With growth assured du ...

Institute of Thermal Technology, Silesian University of Technology2019

Bottom-up method for potential estimation of energy saving measures

François Maréchal, Anna Sophia Wallerand, Ivan Daniel Kantor

Technology and energy saving potentials in the industrial sector are key data that policy-makers rely on to drive decision-making. A literature review reveals a distinct discrepancy between general potential estimation and detailed design studies. The form ...

Elsevier2019

Thermal profile construction for energy-intensive industrial sectors

François Maréchal, Maziar Kermani, Franz Wolf, Hür Ebuzer Bütün, Greta Martha Van Eetvelde, Anna Sophia Wallerand, Alessio Santecchia, Ivan Daniel Kantor

Industrial plant data are difficult to find in academic literature for a number of reasons such as confidentiality, and thus intentional masking, or problem size reduction. These common practices limit the ability of researchers to apply novel methods to r ...

2018

Integration of solar energy with industrial processes

Anna Sophia Wallerand

Solar energy offers a great potential for integration with industrial processes, which conventionally rely on fossil fuels to provide energy. The seasonal, daily, and regional dependence of solar energy alongside the scarcity of space or financial resource ...

EPFL2018

Generic superstructure synthesis of organic Rankine cycles for waste heat recovery in industrial processes

François Maréchal, Maziar Kermani, Anna Sophia Wallerand, Ivan Daniel Kantor

Waste heat accounts for up to 70% of input energy in industrial processes which enunciates the importance of energy recovery measures to improve efficiency and reduce excessive energy consumption. A portion of the energy can be recovered within the process ...

2018

Optimal design of solar-assisted industrial processes considering heat pumping: Case study of a dairy

François Maréchal, Maziar Kermani, Régis Voillat, Anna Sophia Wallerand, Ivan Daniel Kantor

Pinch analysis and Mixed Integer Linear Programming (MILP) have been extensively studied for optimization of industrial processes addressing heat recovery, utility selection and sizing. Analysis of renewable utility integration, such as solar thermal or ph ...

Pergamon-Elsevier Science Ltd2018

Online parallel coordinates tool for optimal utility design in the dairy industry

François Maréchal, Maziar Kermani, Anna Sophia Wallerand, Ivan Daniel Kantor

Despite commonly reported potentials for emission reduction and efficiency increase, industrial heat pumps have yet to reach wide-scale employment in non-refrigeration appli- cations. The bottlenecks are identified as a general scepticism from process oper ...

2018

Optimal heat pump integration in industrial processes

François Maréchal, Maziar Kermani, Anna Sophia Wallerand, Ivan Daniel Kantor

Among the options for industrial waste heat recovery and reuse which are currently discussed, heat pumping receives far less attention than other technologies (e.g. organic rankine cycles). This, in particular, can be linked to a lack of comprehensive meth ...

2018

Techno-Economic and Environmental Optimization of Palm-based Biorefineries in the Brazilian Context, 27th European Symposium on Computer Aided Process Engineering

François Maréchal, Maziar Kermani, Adriano Viana Ensinas, Anna Sophia Wallerand, Ayse Dilan Celebi, Ivan Daniel Kantor

Due to the global increase in energy consumption, greenhouse gas emissions, and the depletion of fossil energy resources, the research presented here is focused on finding economically and environmentally competitive renewable energy resources. Fuel produc ...

Elsevier Science2017

A Hybrid Methodology for Combined Interplant Heat, Water, and Power Integration

François Maréchal, Maziar Kermani, Anna Sophia Wallerand, Ivan Daniel Kantor

The growing desire to improve resource efficiency and environmental impact of industrial processes is directly linked to optimal management of heat, mass and power flows. The concept of industrial symbiosis tackles this issue by proposing interplant heat r ...

Elsevier science2017

Targeting Optimal Design and Operation of Solar Heated Industrial Processes: A MILP Formulation

François Maréchal, Angelos Selviaridis, Anna Sophia Wallerand, Araz Ashouri

The intermittence of solar irradiation displays a great challenge for industrial applications, which often require a constant heat supply. Transient or dynamic simulation software, such as TRNSYS and EnergyPlus, enable modeling of such systems and the resp ...

Elsevier2016

Towards optimal design of solar assisted industrial processes: Case study of a dairy

François Maréchal, Régis Voillat, Anna Sophia Wallerand

Pinch analysis is a valuable tool for industrial process integration and optimization. Based on heat cascading and Mixed Integer Linear Programming (MILP) the optimal utility system can be found, includ- ing traditional heat sources (burners, boilers) and ...

University of Ljubljana2016

Thermo-Economic Analysis of a Trigeneration HCPVT Power Plant

François Maréchal, Bruno Michel, Angelos Selviaridis, Anna Sophia Wallerand

The increasing need for electricity and heat in a growing global economy must be combined with CO2 emissions reduction, in order to limit the human influence on the environment. This calls for energy-efficient and cost- competitive renewable energy systems ...

2015