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Keywords: pre-chamber
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Proceedings Papers

Lean Limit Extension in Hydrogen Direct Injection Pre-Chamber Opposed-Piston Engines: A Computational Approach

Rafael Menaca, Mohammad Raghib Shakeel, Kevin Moreno-Cabezas, Giovanni Vorraro, James W. G. Turner, Hong G. Im
Proc. ASME. ICEF2024, ASME 2024 ICE Forward Conference, V001T06A010, October 20–23, 2024
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2024-140872
https://doi.org/10.1115/ICEF2024-140872
...-neutral powertrains. However, operating these engines at very lean air-to-fuel ratios, while enhancing efficiency, poses challenges to combustion stability. This study aims to investigate the extension of lean limit of H 2 using an active pre-chamber (PC) utilizing a small fraction of total fuel provided...
View Paper titled, Lean Limit Extension in Hydrogen Direct Injection <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Opposed-Piston Engines: A Computational Approach
Open the PDF for Lean Limit Extension in Hydrogen Direct Injection <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Opposed-Piston Engines: A Computational Approach in another window
Topics: Combustion, Engines, Hydrogen, Ignition, Pistons
Proceedings Papers

Toward the 50% Brake Thermal Efficiency: A 1D/3D Numerical Analysis of an Active Pre-Chamber for a SI Heavy-Duty Gas Engine

Dario Di Maio, Pierpaolo Napolitano, Chiara Guido, Lorenzo Sforza, Tommaso Lucchini, Stefano Golini, Nicola Rapetto
Proc. ASME. ICEF2024, ASME 2024 ICE Forward Conference, V001T06A005, October 20–23, 2024
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2024-140518
https://doi.org/10.1115/ICEF2024-140518
... Abstract Innovative spark ignition heavy-duty engines with active pre-chamber combustion systems represent a promising and viable technology towards a marked reduction in pollutant emissions, with increased performance and reduced fuel consumption. Through a parallel and combined 1D/3D...
View Paper titled, Toward the 50% Brake Thermal Efficiency: A 1D&#x2F;3D Numerical Analysis of an Active <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> for a SI Heavy-Duty Gas Engine
Open the PDF for Toward the 50% Brake Thermal Efficiency: A 1D/3D Numerical Analysis of an Active <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> for a SI Heavy-Duty Gas Engine in another window
Topics: Brakes, Engines, Numerical analysis, Thermal efficiency
Proceedings Papers

A Computational Analysis of Fuel Evaporation and Mixing in a Methanol Opposed-Piston Engine With a Passive Pre-Chamber

Rafael Menaca, Mickael Silva, Kevin Moreno-Cabezas, Giovanni Vorraro, James W. G. Turner, Hong G. Im
Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T06A005, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-110099
https://doi.org/10.1115/ICEF2023-110099
...Proceedings of the ASME 2023 ICE Forward Conference ICEF2023 October 8-11, 2023, Pittsburgh, Pennsylvania ICEF2023-110099 A COMPUTATIONAL ANALYSIS OF FUEL EVAPORATION AND MIXING IN A METHANOL OPPOSED-PISTON ENGINE WITH A PASSIVE PRE-CHAMBER Rafael Menaca , Mickael Silva, Kevin Moreno-Cabezas...
View Paper titled, A Computational Analysis of Fuel Evaporation and Mixing in a Methanol Opposed-Piston Engine With a Passive <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span>
Open the PDF for A Computational Analysis of Fuel Evaporation and Mixing in a Methanol Opposed-Piston Engine With a Passive <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> in another window
Topics: Engines, Evaporation, Fuels, Methanol, Pistons
Proceedings Papers

Computational Investigation on the Effects of Pre-Chamber Volume in an Active Narrow-Throat Pre-Chamber Engine

Mickael Silva, Xinlei Liu, Ponnya Hlaing, Emre Cenker, Abdullah Al-Ramadan, James W. G. Turner, Hong G. Im
Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T06A004, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-110084
https://doi.org/10.1115/ICEF2023-110084
...Proceedings of the ASME 2023 ICE Forward Conference ICEF2023 October 8-11, 2023, Pittsburgh, Pennsylvania ICEF2023-110084 COMPUTATIONAL INVESTIGATION ON THE EFFECTS OF PRE-CHAMBER VOLUME IN AN ACTIVE NARROW-THROAT PRE-CHAMBER ENGINE Mickael Silva CCRC, KAUST Thuwal, Saudi Arabia Xinlei Liu CCRC...
View Paper titled, Computational Investigation on the Effects of <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Volume in an Active Narrow-Throat <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Engine
Open the PDF for Computational Investigation on the Effects of <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Volume in an Active Narrow-Throat <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Engine in another window
Topics: Combustion, Computational fluid dynamics, Convection, Diesel, Ejectors, Engines, Flames, Heat transfer, Jets, Methane
Proceedings Papers

Direct Injection Strategy to Extend the Lean Limit of a Passive Pre-Chamber

Fahad Almatrafi, Kalim Uddeen, Moez Ben Houidi, Emre Cenker, James Turner
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T03A004, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-89021
https://doi.org/10.1115/ICEF2022-89021
... Abstract Lean operation increases the efficiency of the Otto-cycle internal combustion engine and decreases its emissions. However, increasing the air-fuel ratio beyond stoichiometry requires higher ignition energy to maintain the stable operation of the engine. The pre-chamber emerges as one...
View Paper titled, Direct Injection Strategy to Extend the Lean Limit of a Passive <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span>
Open the PDF for Direct Injection Strategy to Extend the Lean Limit of a Passive <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> in another window
Topics: Combustion, Combustion chambers, Cylinders, Design, Emissions, Engines, Fuels, Ignition, Internal combustion engines, Nozzles
Proceedings Papers

A Computational Assessment of Combustion Submodels for Predictive Simulations of Pre-Chamber Combustion Engines

Mickael Silva, Xinlei Liu, Ponnya Hlaing, Emre Cenker, James Turner, Hong G. Im
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T06A008, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-90917
https://doi.org/10.1115/ICEF2022-90917
... Abstract Pre-chamber combustion (PCC) modeling has been progressing in recent years, while there are lingering questions on fundamental modeling aspects, whether a flame-based or an ignition-based model predicts the combustion with higher fidelity. This mode of ignition concept is known...
View Paper titled, A Computational Assessment of Combustion Submodels for Predictive Simulations of <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Combustion Engines
Open the PDF for A Computational Assessment of Combustion Submodels for Predictive Simulations of <span class="search-highlight">Pre</span>-<span class="search-highlight">Chamber</span> Combustion Engines in another window
Topics: Combustion, Engineering simulation, Engines, Simulation, Fuels, Ignition, Flames, Modeling, Nozzles, Calibration