"Stimulation of the Fermentation Activity by Pulsed Electric Field: Case of Saccharomyces cerevisiae"
09-04-2025
Il prof. Henri Elzakhem del Department of Chemical Engineering della University of Balamand, Libano, in visita presso la Facoltà di Ingegneria Civile e Industriale, terrà il seguente seminario per dottorandi:
- 9 Aprile 2025 (ore 17.00 in Aula 1 a San Pietro in Vincoli)
"Stimulation of the Fermentation Activity by Pulsed Electric Field: Case of Saccharomyces cerevisiae"
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"Food Preservation and Packaging: Thermal and non-Thermal Processes like Pulsed Electric Fields"
07-04-2025
Il prof. Henri Elzakhem del Department of Chemical Engineering della University of Balamand, Libano, in visita presso la Facoltà di Ingegneria Civile e Industriale, terrà il seguente seminario per dottorandi:
- 7 Aprile 2025 (ore 17.00 in Aula 22 a San Pietro in Vincoli)
"Food Preservation and Packaging: Thermal and non-Thermal Processes like Pulsed Electric Fields"
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Energy Systems
6-12-2024
Professor Nuno Domingues from ISEL Engineering Polytechnic University of Lisbon, terrà due seminari per dottorandi, dal titolo:
- Wednesday 4, dec 2024 17-19 h
- energy systems
- Practical aspects of RES projects
- RES Calculus
Abstract: The energy system is a complex interdisciplinary context. This lecture explains the datasheet of equipments and presents some simple calculations on some kind of RES.
- Friday 6, dec 2024 17-19
- energy management systems
- market guided mechanisms for production and consumption
- nZEB buildings
Abstract: Energy communities and small scale energy consumption and production systems are appearing more often. The quality of the energy supplied depends on the different agents. Understanding how every agent act and how can be guided is important to forecast and for planning.It is also introduced the concept of nZEB and presented some key examples.
I seminari si terranno in AULA 37 presso la Facoltà di Ingegneria.
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The reduction of GHG emissions to the atmosphere: the main overall challenge
3-04-2024
Il prof. JAIME FILIPE BORGES PUNA (Chemical Engineering Department of Instituto Superior de Engenharia de Lisboa (ISEL), Lisbon, Portugal, terrà un seminario dal titolo: The reduction of GHG emissions to the atmosphere: the main overall challenge.
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New Zero Dreaming: Fossil Fuels or Darkness and Hunger
3-04-2024
Il prof. GREGORY S. PATIENCE (Canada Research Chair in high temperature, high pressure heterogeneous catalysis, Polytechnique Montreal), terrà un seminario su: New Zero Dreaming: Fossil Fuels or Darkness and Hunger
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Advanced reactor analysis and design through reactive Computational Fluid Dynamics and hierarchical approach
08-02-2024
Prof. Mauro Bracconi, Laboratory of Catalysis and Catalytic Processes - Dipartimento di Energia, Politecnico di Milano -
Multiscale modelling, incorporating Computational Fluid Dynamics (CFD) and detailed microkinetic description of the chemical reactivity, is a key tool for understanding reactor and process behaviour [1]. This talk will discuss advanced multiscale methods that detail fluid dynamics, species interactions, heat transfer, and surface reactivity in various flows conditions and reactor configurations [2,3]. It will address strategies to minimize computational costs, from traditional methods to Machine Learning [4]. However, the direct application of these methods to realistic industrial systems is limited by high computational demands. The presentation will introduce a hierarchical approach [5], that employs highly detailed multiscale CFD simulations in selected but relevant conditions to achieve a fundamental understanding of the complex interplay between transport and surface reactivity. In doing so, engineering correlations are developed and employed in macroscopic reactor models, enabling efficient reactor design. Applications of this approach in micro-packed bed reactors and structured catalyst supports will be showcased [5,6].
Bibliography
[1] M. Maestri, Chem. Commun. 53 (2017) 10244–10254.
[2] D. Micale, et al., Chemie Ing. Tech. (2022).
[3] M. Bracconi, Chem. Eng. Res. Des. 179 (2022) 564–579.
[4] M. Bracconi, M. Maestri, Chem. Eng. J. (2020) 125469.
[5] M. Bracconi, et al. Chem. Eng. Proc. – Proc. Int. 181 (2022) 109148
[6] M. Bracconi, et al., Chem. Eng. J. 352 (2018) 558–571.
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Fire Safety Engineering principles
23-06-2023
Il 23 giugno 2023 alle ore 15.30, il prof. Lars Schiott Sorensen, professore visitatore del DTU (Technical University of Denmark) nell'ambito delle attività didattiche del dottorato terrà il seminario dal titolo: Fire Safety Engineering principles
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New approach to harness the annual energy potential of operational water networks.
07-06-2023
prof. Jean-Henry FERRASSE, Aix Marseille Université, CNRS, Centrale Marseille, M2P2, Marseille, France -
The use of converted primary energy for heating and air conditioning currently represents 45.1% of French consumption. Water distribution networks, which are currently underutilized, could represent significant potential for the production of cold and heat due to the large quantity of water they transport. We aim to quantify the energy potential of these networks while maintaining their normal operation. Calculations of different power values are based on real-time determination of flow temperature and pressure. Interaction with the networks is achieved through heat exchangers optimized by minimizing entropy generation. This approach is applied to a cylindrical heat exchanger in dynamic mode. By incorporating the entropy generation terms resulting from temperature differences and pressure losses along the exchanger, the total entropy generation value is obtained during dynamic operation. In this configuration, the entropy generation related to the mixing of diverted water and network water is also taken into account. The total entropy generation is used as an objective function to optimize the geometry of the heat exchanger (with variable length and diameters) and fluid flows. Results from the application on an actual network are presented.
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Dynamics and modeling of vehicle fires
19-07-2022
Luisa Giuliani (DTU, Denmark) - The risk associated to fire events has increased during the past years, as a consequence of a rapid development of new technologies and new materials, which has not been followed by an equivalent rapid upgrade of current fire safety regulations.
Such risk is not limited to industrial processes and industries, but extends also to every-day premises such as residential buildings, car parks and infrastructures. With respect to the latter in particular, the increased size of cars, the use of more plastic materials, as well as the increasing numbers of alternative fueled vehicles (hydrogen and EV) has led to a significant increment of the average fuel load of cars and of the consequences of such fires.
Such consequences are not limited to structural damages (such as in the recent collapse of Stavanger car park in 2020 or demolition of the Liverpool Echo Arena car park in 2018), but represent also significant hazards for people and environment. Two recent examples of this are the car and truck fire on the Euroferry Olympia, in February 2022, which caused the death of 8 passengers, and the EV fire on the Felicity Ace cargo vessel, which sank in the middle of the Atlantic Ocean with a highly pollutant cargo. This very recent event caught the attention of the media and re-ignited the debate on the risk of large car fires and the possible additional risk posed by EV in triggering or spreading the fire.
This seminar will focus on the dynamics and modelling of vehicles fires, with the aim of providing practical and conservative tools to assess the fire of a car and the fire spread among cars and indicate measures to avoid large consequences of such fires.
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Hydrogen applications related to fire safety engineering at DTU FireLab
15-09-2021
Nell'ambito delle attività formative del Dottorato in Processi Chimici per l'Industria e per l'Ambiente, il giorno 10 settembre 2021 il prof. Frank Markert (DTU, Copenhagen, Denmark) terrà un secondo seminario dal titolo: Introduction to fire and industrial risk assessment. Il seminario potrà essere fruito a distanza su piattaforma Google Meet.
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