Turbulent combustion modeling for internal combustion engine CFD: A review DOI Creative Commons
Stefan Posch, Clemens Gößnitzer, Michael Lang

et al.

Progress in Energy and Combustion Science, Journal Year: 2024, Volume and Issue: 106, P. 101200 - 101200

Published: Nov. 6, 2024

Language: Английский

A comparative study on NH3/H2 and NH3/CH3OH combustion and emission in an optical SI engine DOI
Ren Zhang,

Gequn Shu,

Hua Zhao

et al.

Fuel, Journal Year: 2024, Volume and Issue: 369, P. 131731 - 131731

Published: April 26, 2024

Language: Английский

Citations

20

Advancements and Challenges of Ammonia as a Sustainable Fuel for the Maritime Industry DOI Creative Commons

Antonio Chavando,

Valter Silva, João Cardoso

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(13), P. 3183 - 3183

Published: June 28, 2024

The maritime industry needs sustainable, low-emission fuels to reduce the environmental impact. Ammonia is one of most promising alternative because it can be produced from renewable energy, such as wind and solar. Furthermore, ammonia combustion does not emit carbon. This review article covers advantages disadvantages using a sustainable marine fuel. We start by discussing regulations concerns shipping sector, which responsible for around 2% 3% global energy-related CO2 emissions. These emissions may increase grows at compound annual growth rate 4.33%. Next, we analyze use fuel in detail, presents several challenges. challenges include high price compared other fossil fuels, low reactivity toxicity ammonia, NOx, N2O resulting incomplete combustion, an inefficient process, NH3 slipping. However, emphasize how overcome these discuss techniques NOx emissions, co-combustion improve reactivity, waste heat recovery strategies, regulatory framework, safety conditions. Finally, address market trends

Language: Английский

Citations

9

Combination of G-Equation and Detailed Chemistry: An application to 3D-CFD hydrogen combustion simulations to predict NOx emissions in reciprocating internal combustion engines DOI Creative Commons
Stefano Sfriso, Fabio Berni, Stefano Fontanesi

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 89, P. 161 - 176

Published: Sept. 26, 2024

Language: Английский

Citations

8

Optical study on the auto-ignition and knocking behaviors of ammonia/PODE RCCI mode DOI
Ren Zhang, Lin Chen, Jinguang Li

et al.

Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133467 - 133467

Published: Oct. 21, 2024

Language: Английский

Citations

5

Pressure oscillation mechanisms and heat transfer characteristics of non-auto-ignition knock induced by Thermo-Pressure Excitation in turbulent jet ignition engines DOI
Yue Wu, Long Liu, Бо Лю

et al.

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: 269, P. 126047 - 126047

Published: Feb. 24, 2025

Language: Английский

Citations

0

Evaluating Ammonia as a Marine Fuel: Review and Illustration DOI
Murat Bayraktar, Mustafa Sokukcu, Murat Pamık

et al.

Environmental Modeling & Assessment, Journal Year: 2025, Volume and Issue: unknown

Published: March 15, 2025

Language: Английский

Citations

0

3D-CFD Simulations of H2 ICEs: A Preliminary Evaluation of a Laminar Flame Speed Correction for Thermo-Diffusive Instability DOI
Stefano Sfriso, Fabio Berni, Sebastiano Breda

et al.

SAE technical papers on CD-ROM/SAE technical paper series, Journal Year: 2025, Volume and Issue: 1

Published: April 18, 2025

<div class="section abstract"><div class="htmlview paragraph">In recent years, climate change and geopolitical instability have intensified the focus on sustainable power generation. This shift seeks alternatives that balance environmental impact, cost-effectiveness, practicality. Specifically, in transportation generation, electric motors face challenges against internal combustion engines due to high cost mass of batteries required for energy storage. makes solutions less favorable these sectors. Conversely, engines, when properly fueled, offer cost-effectiveness a quasi-environmentally-neutral option. To address challenges, researchers explored e-fuels derived from renewable sources as carbon-neutral supply engines. Among these, hydrogen is particularly promising. In hydrogen-powered 3D-CFD (Computational Fluid Dynamics) in-cylinder models are crucial. Once validated, can speed up design process. A key challenge simulating H2 accurately representing flame thermo-diffusive instabilities lean mixtures, which vital peak engine efficiency. Accurate representation process under conditions thus mandatory models. study represents preliminary effort incorporate into framework. An extensively validated numerical framework was modified include instability-induced acceleration propagation speed. The outcomes were analyzed compared with results obtained without correction term. Although improvements limited certain operating conditions, underscored importance considering influence turbulence instability.</div></div>

Language: Английский

Citations

0

Proposal and Validation of 3D-CFD Framework for Ultra-Lean Hydrogen Combustion in ICEs DOI
Stefano Sfriso, Fabio Berni, Sebastiano Breda

et al.

SAE technical papers on CD-ROM/SAE technical paper series, Journal Year: 2024, Volume and Issue: unknown

Published: April 9, 2024

<div class="section abstract"><div class="htmlview paragraph">In recent months, the increasing debate within European Union to review ban on internal combustion engines has led pursuit of environmentally neutral solutions for ICEs, as an attempt promote greater economic and social sustainability. Interest in remains strong uphold principle technological neutrality. In this perspective, present paper proposes a numerical methodology 3D-CFD in-cylinder simulations hydrogen-fueled engines. The modelling relies G-equation formulation, along with Damköhler Verhelst turbulent laminar flame speeds, respectively. Numerical are validated pressure traces images chemiluminescent hydrogen flames captured through piston single-cylinder optical spark-ignition engine. To mitigate uncertainties related modeling mixture stratification injection, is port-injected continuously supplied into intake pipe ensure homogeneity. Therefore, main challenge study represented by accurate characterization propagation, which key element validation computational framework. regard, remarkable alignment between experiments achieved terms imaging, evidencing model’s capabilities. carried out at different equivalence ratios, demonstrating reliability framework consistently reproduce results without need case-by-case adjustments.</div></div>

Language: Английский

Citations

3

Numerical investigation of catalytic effect of platinum porous media on the combustion characteristics of hydrogen/ammonia blend DOI
Ali Tolouei, Ayat Gharehghani

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 98, P. 1155 - 1173

Published: Dec. 14, 2024

Language: Английский

Citations

2

Turbulent combustion modeling for internal combustion engine CFD: A review DOI Creative Commons
Stefan Posch, Clemens Gößnitzer, Michael Lang

et al.

Progress in Energy and Combustion Science, Journal Year: 2024, Volume and Issue: 106, P. 101200 - 101200

Published: Nov. 6, 2024

Language: Английский

Citations

1