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HPC simulation hydrogen based energy

EU energy 2050 roadmap asking for “zero-net” CO2 emissions by 2050 calls for the decarbonation of energy in all energy production systems, with application in aeronautical propulsion, ground-based gas turbines for power generation, industrial furnaces and many other systems. A direct way to achieve this target is to increase the use of the so-called carbon neutral “e-fuels”, i.e., fuels produced in green-energy plants such as dihydrogen (H2), ammonia (NH3) or methane (from captured CO2 and H2).

Conjugate heat transfer simulations (AVBP/AVTP) of a gas turbine combustor operated with hydrogen

Such an extreme change in fuel supply may result in catastrophic consequences on the stability and performances of the combustion system leading to undesirable phenomena such as thermoacoustic instabilities, blow-off or flashback. On top of that, controlling pollutant emissions, and guaranteeing safety, in particular with the use of non-negligible amounts of H2, are mandatory.

The CFD team of CERFACS simulate all these systems ensuring a high level of experience in all the physics involved in these problems (turbulence, combustion, acoustics, atomization and phase change, heat transfer). CERFACS is the world leader for high performance computing of complex industrial systems under realistic conditions.

This is made possible by a set of in-house softwares:

  • ARCANE allows to analyze and reduce chemical schemes usable in LES of H2 and complex fuel combustion and pollutant predictions (NOx, CO and soot). ARCANE is developed in collaboration with Cornell University (Pr. Pepiot).
  • The LES solver AVBP features stable low dispersive and low dissipative numerical methods, with specific developments for the integration of stiff chemistry and high parallel efficiency, allowing in particular a local time-stepping strategy based on coupled subdomains.
  • Advanced coupling strategies of the AVBP code with thermal solvers AVTP (conduction) and PRISSMA (radiation) are available to address conductive / convective and radiative heat transfer in high-performance conjugate heat transfer simulations.

DNS of a high pressure H2-O2 diffusion flame

H2-based and clean energy is a major concern for many CERFACS Shareholders: Airbus, Safran and ONERA for aeronautical propulsion; EDF for production of electricity; Total for petrochemistry and conversion to renewable energy. It is also a major concern in many sectors, in particular ground-based gas turbines (Ansaldo), and all sectors using furnaces as a source of heat for the production of, for example, glass (Saint-Gobain), cements, chemical products, etc.

 

NEWS

The AVBP code from CERFACS at the heart of three PRACE projects from the 23rd call

CERFACS |  30 September 2021

Cerfacs is involved in three PRACE projects of the 23rd call for which hour allocation runs from 01/10/2021 to 30/09/2022. Researchers from ECL/LMFA UMR5509 (Ecole Centrale de Lyon) and IMFT (UMR 5502) laboratories have earned projects entirely based on the use of the LES solver developed by Cerfacs AVBP and involve the support of experts from the CFD and COOP teams underling the importance and effectiveness of collaborations between French labs and Cerfacs. Alexis Giauque from ECL/LMFA UMR5509 (Ecole Centrale de Lyon) has obtained not only one but two PRACE projects! The first project LESFAN (RA0101, 30 000 000 CPU hours on Irene/Rome TGCC) is based on the use of AVBP in the turbomachinery version to study the generation of noise by a fan of a real airplane engine. The second, PRACE-EDGES (RA0101, 40 000 000 CPU hours on Irene/Rome TGCC) focuses on LES modeling of dens gas in complex geometries. To do so, the LMFA Team has developed advanced thermodynamic closures in AVBP allowing the direct simulation of such flows. Laurent Selle from IMFT (UMR 5502) has received CPU hours for the GASTON project (RA0061, 30 000 000 CPU hours on Marenostrum BSC) which aims to study the structure of hydrogen flames in porous materials. For this, IMFT and Cerfacs will perform coupled simulations considering the reactive flow with AVBP as well as the conduction in the porous medium with AVTP which is known to play an central role in the flame stabilization process.Read more


watch the online contest ”my thesis in 180 sec” organized for Marie Curie actions

CERFACS |  24 September 2021

Next Thursday, Sept 30th the #FallingWallsLab #MSCA research presentation competition will take place, . This is a competition in which 15 researchers compete to deliver the best presentation of their research topic in the format "my thesis in 180 seconds" . Javier Crespo-Anadon, 3rd year PhD student in the CFD team is one of the 15 finalists and he will present this thesis topic: ignition in spinning combustion engines for a reduction in CO2 emissions! You can watch it online on the above website on Sept 30th at 3pm. I encourage you to go to the website and register!  You'll be able to listen to the other participants' pitches and vote for your favorite. Come and see for yourself what kind of research the EU funds!Read more

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