Stefano Frigo

ORCID: 0000-0003-3291-9479
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About
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Research Areas
  • Advanced Combustion Engine Technologies
  • Vehicle emissions and performance
  • Biodiesel Production and Applications
  • Thermochemical Biomass Conversion Processes
  • Combustion and flame dynamics
  • Biofuel production and bioconversion
  • Catalytic Processes in Materials Science
  • Hybrid Renewable Energy Systems
  • Hydrogen Storage and Materials
  • Catalysts for Methane Reforming
  • Catalysis for Biomass Conversion
  • Refrigeration and Air Conditioning Technologies
  • Coal Combustion and Slurry Processing
  • Combustion and Detonation Processes
  • Hydraulic and Pneumatic Systems
  • Electric and Hybrid Vehicle Technologies
  • Subcritical and Supercritical Water Processes
  • Chemical Looping and Thermochemical Processes
  • Engineering Applied Research
  • Real-time simulation and control systems
  • Thermodynamic and Exergetic Analyses of Power and Cooling Systems
  • Scientific Measurement and Uncertainty Evaluation
  • Recycling and Waste Management Techniques
  • Heat transfer and supercritical fluids
  • Microbial Metabolic Engineering and Bioproduction

University of Pisa
2015-2024

Fondazione Stella Maris
2011-2012

Ingegneria dei Sistemi (Italy)
2012

10.1016/j.ijhydene.2012.10.114 article EN International Journal of Hydrogen Energy 2012-11-28

This paper presents the results obtained during an extensive experimental campaign focused on analysing application of Oxy-CO2 gasification technology to a small downdraft gasifier fed with woody biomass. Oxy-gasification enables production nitrogen-free synthesis gas (syngas), which can be effectively employed in various high-value chemicals, including but not limited synthetic natural (SNG), methanol (CH3OH), ammonia (NH3), hydrogen and more. The performances were analysed using different...

10.1016/j.renene.2024.120593 article EN cc-by-nc-nd Renewable Energy 2024-05-04

The production of hydrogen from residual biomass represents a sustainable alternative to integrate the renewable in coming years. This work shows results obtained during an experimental campaign dedicated analysing performance downdraft gasifier about 100 kWt fed with woody and oxy-steam mixtures. With suitable oxygen-steam ratios it was possible produce syngas content higher than 40%vol, cold gas efficiency more 80%. composition is used as input numerical model, created Aspen Plus®...

10.1016/j.ijhydene.2024.05.306 article EN cc-by-nc-nd International Journal of Hydrogen Energy 2024-05-23

10.4271/2012-32-0019 article SAE technical papers on CD-ROM/SAE technical paper series 2012-10-23

The present investigation represents a concrete example of complete valorization Eucalyptus nitens biomass, in the framework circular economy. Autohydrolyzed-delignified was employed as cheap cellulose-rich feedstock direct alcoholysis to n-butyl levulinate, adopting n-butanol green reagent/reaction medium, very dilute sulfuric acid homogeneous catalyst, and different heating systems. effect main reaction parameters give levulinate investigated check feasibility this identify coarse ranges...

10.3390/catal10050509 article EN Catalysts 2020-05-06

The synthesis of a Substitute Natural Gas (SNG) that is compatible with the gas grid composition requirements by using surplus electricity from renewable energy sources looks favourable solution to store large quantities and decarbonise network while maintaining same infrastructure. most promising layouts for SNG production conditions under which reduces environmental impacts if compared its fossil alternative still largely untapped. In this work, six different biomass fluctuating are point...

10.1016/j.ijhydene.2021.01.033 article EN cc-by International Journal of Hydrogen Energy 2021-02-10

10.4271/2014-32-0082 article EN SAE technical papers on CD-ROM/SAE technical paper series 2014-11-11

In the light of recent standards proposed by European Union in terms CO 2 emissions for internal combustion engines, attention is increasingly focused on e-fuels, among which renewable-produced hydrogen.The present paper proposes a numerical methodology 3D-CFD in-cylinder simulations hydrogen-fuelled engines.The framework includes in-house developed models ignition, knock and heat transfer it based G-equation model.The predictive capabilities are validated against experimental data...

10.1016/j.ijhydene.2023.12.027 article EN cc-by-nc-nd International Journal of Hydrogen Energy 2023-12-14

Thermo-hydro-geochemical modelling is of great economic and scientific importance for the implementation geothermal projects, where understanding effects fluid injection extraction on reservoir properties crucial. From an operational point view, changing temperature reservoirs can intensify both biotic abiotic water-rock interactions. The latter, including mineral dissolution precipitation processes, alter rock’s structure and, consequently, its hydraulic transport such as porosity...

10.5194/egusphere-egu25-6144 preprint EN 2025-03-14
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