GammaTech Engineering’s Post

💦 Direct injection (DI) hydrogen engines (H2-ICEs) represent a promising technology for the decarbonization of the transport sector. However, the optimization of the injection and mixing processes is needed to take advantage of the benefits offered by this solution. In the present work, a study of the hydrogen-air mixture formation process in a DI H2-ICE for off-road applications retrofitted from a diesel engine was performed through 3D-CFD simulations. If interested in H2-ICE simulations, do not miss the presentation of our e-cuber Andrea Scalambro at the upcoming SAE International 2024 World Congress Experience ( #wcx) in Detroit (Michigan)! Andrea will present the results of a research activity, in collaboration with FEV Group and Kohler Energy - Engines , about the optimization of the mixture formation process in a DI H2-ICE. Title: "Numerical Analysis of the Hydrogen-Air Mixture Formation Process in a Small Displacement Direct-Injection Engine" Session: Multi-Dimensional Engine Modeling - Part 1 of 3 🕒&📆: 2:00 PM - 2:30 PM EDT on Wednesday, April 17 📍: Room 140A, Huntington Place, Detroit, Michigan #Simulation #H2ICE #DirectInjection #OffRoad

The high-interest topics of fuel cells and hydrogen simulations have been a theme at our most recent events including our joint webinar with Advanced Design Technology Ltd. and our presentation at ModVal 2024, the 20th Symposium on Modeling and Validation of Electrochemical Energy Technologies, at the PSI Electrochemistry Laboratory. Taking a step back, are you curious about fuel cell technology, hydrogen safety, and system simulation? If so, learn how Gamma Technologies' GT-SUITE simulation solutions are used to develop a comprehensive understanding of the fuel cell system’s behavior within an integrated vehicle model in this blog: https://bit.ly/46mGqni This blog references Episode 3 of the GT Tech Talk with guests Navin Fogla and Jake How as they discussed the challenges engineers face designing and developing fuel cells and how simulation can help ease their product design and development. Watch that episode here: https://lnkd.in/gQYn3wyH #fuelcell #simulation #blog 

Cloud Computing is cool 😃 Supercomputing (hpc) is Super cool 😎 Supercomputing(hpc) in the Cloud? Super Super Cool! 😮 🤠 Join the session to see how the fuel cell industry is leveraging HPC in the cloud 👉🏾 #CloudHPC #supercomputing #batterytechnology

📢🌟 🚀 My #SECOND Exciting Announcement for today 🚀 ! 🌟   📚I'm thrilled to share that my latest article titled "Study of Proton-Exchange Membrane Fuel Cell Degradation and its Counter Strategies: Flooding/drying, Cold Start and Carbon Monoxide Poisoning" has been published in the International Journal of Automotive Science And Technology (IJATECH).   In this study 🔍, I delve into the critical aspects of proton-exchange membrane fuel cell (PEMFC) degradation and explore effective counter strategies to mitigate issues such as flooding/drying, cold starts, and carbon monoxide poisoning. By addressing these challenges, we aim to enhance the performance and longevity of fuel cell systems in automotive applications.   I'm grateful for the opportunity to contribute to the advancement of automotive science and technology, and I look forward to sharing more insights from this research in the future.   📖Read the full article here: https://lnkd.in/eiWx79y5  Divyesh Arora, PhD.Eng | Adrien Soloy | Thomas Bartoli, Ph.D |Capgemini Engineering | #capgemini #FuelCell #AutomotiveTechnology #Research #PublishedArticle #PEMFC #Decarbonization #Electrification #LinkedInPublication #capgeminiengineering

It's thrilling to see the incredible research that's conducted around the world with CONVERGE. One recent study is a collaboration between Argonne National Laboratory and Purdue University, described in the paper: Pal, P., Braun, J., Karimli, K., Athmanathan, V., Paniagua, G., and Meyer, T.R., "Large-Eddy Simulation of a Hydrogen-Air Non-Premixed Rotating Detonation Combustor Coupled With a Downstream Nozzle," 2023 AIAA Aviation Forum, AIAA 2023-4271, San Diego, CA, United States, Jun 12–16, 2023. In this work, Argonne National Laboratory performed a large-eddy simulation (LES) study to investigate the combustion dynamics in a full-scale hydrogen-air non-premixed rotating detonation combustor (RDC) coupled with a downstream nozzle. In addition, the flow characteristics at the nozzle exit were also studied with implications for RDC-turbine integration for stationary power generation applications. The simulated configuration corresponds to the Turbine-integrated High-Pressure Optical rotating detonation engine (RDE) rig at Purdue University. Detailed chemistry, autonomous meshing, and adaptive mesh refinement (AMR) were leveraged to efficiently model supersonic combustion in the RDC. The first view shows the chaotic detonation initiation phase wherein the RDC is ignited using a pre-detonator tube containing hydrogen-oxygen mixture (spark-ignited at the far end). Hydrogen and air enter at the bottom of the RDC channel through discrete injection ports and plenum/throat, respectively (not shown here). The second view shows the quasi-steady state behavior with sustained propagation of a single detonation wave within the annulus. The LES accurately predicts both the number of waves and wave speed. Thanks to Pinaki Pal for providing the video! #cfd #convergecfd

It's SciTech week! While I can't be there in person, I wanted to share an awesome simulation of lean blow-off (LBO) in a gas turbine combustor. Here we simulated LBO for two fuels: A-2 (a conventional Jet-A fuel) and C-1 (an alternative fuel). Note that the equivalence ratio (represented by phi in the animation) is dropping for each of the fuels until the lean limit is reached. CONVERGE’s innovative meshing technique drastically reduces the time it takes to set up and run gas turbine engine simulations. In this video, we leveraged autonomous meshing, large eddy simulations, and detailed chemistry to simulate LBO. The combustor geometry preserved all flow passages and included the dome, liners, dilution jets, and effusion cooling holes. CONVERGE was able to accurately predict the difference in LBO limits for the two fuels within a reasonable amount of time. Be sure to visit Dan and Eric at the Convergent Science booth (# 100) to learn more! #cfd #convergecfd #aiaa

Fuel cell system modeling is essential for designing workable devices that can leverage the hydrogen economy. Our fuel cell podcast explores the nuances of modeling fuel cell systems with appropriate balance of plant, thermal management and water management at different fidelities. 

This #ThrowbackThursday, we’re spotlighting a presentation from the 2023 CONVERGE CFD Conference by olivier laget from IFP Energies nouvelles, “Hydrogen Internal Combustion Engine Developments: Physical Phenomena and Related Challenges.” While battery electric vehicles have gained popularity in recent years, current battery technology struggles to meet the demands of high-power applications. Hydrogen has a high energy density, and hydrogen engines produce very low levels of CO2 during operation, making them an attractive alternative to diesel engines. In this presentation, Olivier showcases a study using CONVERGE to simulate a medium- to heavy-duty hydrogen direct-injection engine. The aims of the study were to (1) achieve the right in-cylinder aerodynamics for H2 mixing, (2) find an H2 injection strategy to enhance the gas-gas mixing, and (3) mitigate autoignition. Check out Olivier’s presentation to see the results! https://lnkd.in/dd6B88_X If you want to learn how to use CONVERGE for your own ICE simulations, our office in Pune, India, is holding free CONVERGE training next week! At Introduction to CONVERGE on May 14-15, you’ll learn the fundamentals of setting up, running, and post-processing simulations in CONVERGE. On May 16, CONVERGE for IC Engines offers a hands-on introduction to simulating different types of engines. Registration closes on May 13—reserve your spot today! https://lnkd.in/dXmMscjU