Contact mail –
LinkedIn: https://www.linkedin.com/in/filippo-fruzza-055585263/
Researchgate: https://www.researchgate.net/profile/Filippo-Fruzza
Ciclo: XXXVII (PON Green)
Ph.D. in Industrial Engineering
Curriculum: Chemical and Materials Engineering
Title of the PhD Project: Application of Uncertainty Quantification techniques to the development of predictive models for hydrogen enriched flames
Supervisors: Prof. Chiara Galletti and Prof. Maria Vittoria Salvetti
In collaboration with: IMMERGAS S.p.A.
Abstract of the PhD project:
Green hydrogen has emerged as a valid candidate to boost decarbonization in several sectors, including heating for residential and commercial buildings. Current heating devices are mainly fueled with natural gas and are equipped with flat or cylindrical burners that stabilize the flame on perforated plates. The transition from natural gas to hydrogen presents significant challenges in burner design due to the distinctive physical properties of hydrogen. One notable challenge is to avoid the flashback of hydrogen flames, which is an undesirable phenomenon where the flame moves upstream of the burner plate into a pre-heating region, posing safety risks. This PhD project proposes the development of an advanced numerical model utilizing Computational Fluid Dynamics (CFD) to accurately predict and analyze the dynamics of flashback in premixed hydrogen burners. The model is designed to simulate the flashback velocity in burners operating on a range of hydrogen mixtures, up to 100% hydrogen. Considering the complexity of the phenomena, the high computational costs associated with detailed CFD simulations, and the multitude of parameters involved, the application of Uncertainty Quantification techniques is critical. These techniques enable a profound quantitative understanding of how various parameters and their interplay affect the flashback phenomena in these devices using a limited number of simulations. This approach not only facilitates the assessment of the relative importance of each parameter but also quantifies their interactions, enhancing the predictive capability and reliability of the model. The objectives of this research are twofold: firstly, to advance the understanding of the physical phenomena governing hydrogen flame flashback across diverse burner configurations, and secondly, to develop robust modeling tools that significantly enhance the design capabilities of industrial partners for innovative burners. This PhD project operates in collaboration with, and receives partial funding from, IMMERGAS S.p.A., a leader in the condensing boiler market and a pioneer in the development of innovative heating technologies.
Teaching experience:
- Fondo Giovani 2023/2024 per l’incentivazione delle attività di tutorato, didattiche-integrative, propedeutiche e di recupero, Codice: DICI 18, Insegnamento: FLUIDODINAMICA COMPUTAZIONALE MULTIFASE E REATTIVA, CdL: LM Ingegneria Chimica (10h)
Publications
ORCID ID: https://orcid.org/0000-0003-0117-104X
- Fruzza, H. Chu, R. Lamioni, T. Grenga, C. Galletti, H. Pitsch, The importance of Soret effect, preferential diffusion, and conjugate heat transfer for flashback limits of hydrogen-fueled perforated burners (accepted for 40th International Symposium of the Combustion Institute)
- Fruzza, H. Chu, R. Lamioni, T. Grenga, C. Galletti, H. Pitsch, Preprint: Effects of three-dimensional slit geometry on flashback of premixed hydrogen flames in perforated burners (2024)
doi: https://doi.org/10.48550/arXiv.2312.00744 - Fruzza, R. Lamioni, A. Mariotti, M. V. Salvetti, C. Galletti, Flashback propensity due to hydrogen blending in natural gas: Sensitivity to operating and geometrical parameters, Fuel 362 (2024)
- Fruzza, R. Lamioni, L. Tognotti, C. Galletti, Flashback of H2-enriched premixed flames in perforated burners: Numerical prediction of critical velocity, Int. J. Hydrog. Energy 48 (81) (2023)
Conferences
- Fruzza, R. Lamioni, A. Mariotti, M.V. Salvetti, and C. Galletti: Uncertainty quantification and sensitivity analysis in conjugate heat transfer simulations for predicting flashback limits of hydrogen-enriched flames. SIAM Conference on Uncertainty Quantification. Trieste, Italy. 2024.
- Lamioni, F. Fruzza, L. Tognotti, C. Galletti. Flashback in hydrogen fueled perforated burners: quantification of uncertainties and sensitivity to parameters. Joint Meeting of the Belgian and Italian Sections of the Combustion Institute. Firenze, Italy. 2023.
- Fruzza, H. Chu, T. Grenga, C. Galletti, and H. Pitsch: Effects of slit shapes on the flashback limits of premixed hydrogen slit burners. 11th European Combustion Meeting. Rouen, France. 2023.
- Fruzza, R. Lamioni, A. Mariotti, M.V. Salvetti, and C. Galletti: Flashback phenomenon in hydrogen-fueled perforated burners: quantification of uncertainties and sensitivity to parameters. 11th European Combustion Meeting. Rouen, France. 2023.
- Fruzza, R. Lamioni, M.V. Salvetti, and C. Galletti: Quantification of uncertainty for the numerical analysis of flashback when feeding hydrogen-admixtures in multi-hole burners. 14th European Fluid Mechanics Conference. Athens, Greece. 2022.
- Lamioni, F. Fruzza, L. Tognotti, and C. Galletti: Flashback phenomenon in domestic condensing boiler in H2-enriched admixtures. Convegno nazionale GRICU 2022. Ischia, Italy. 2022.
- Fruzza, R. Lamioni, L. Tognotti, M.V. Salvetti, and C. Galletti: Analysis of flashback with H2-enriched mixtures through numerical simulations with detailed kinetics. 44th Meeting of the Italian Section of the Combustion Institute. Napoli, Italy. 2022.
- Lamioni, F. Fruzza, and C. Galletti: Modeling flashback of H2-enriched flames in perforated burners. 33rd Parallel CFD International Conference. Alba, Italy. 2022.