Simplification and applicability studies of a hydrogen-air detailed reaction mechanism

Duan, Junfa; Wu, Paixia; Zhu, Honggeng; Qin, Gaolin; Wei, Wei

doi:10.1016/j.ijhydene.2018.09.173

Cited by 12 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…x emissions Zhu et al 86 (2019) as the above CFD methods the combustion of hydrogen in the cylinder undergoes two stages: ellipsoidal flame stable propagation and rapid turbulent combustion Duan et al. 87 (2019) as the above CFD methods the most important reaction that affects the combustion of hydrogen; the generation of NO depends not only on the combustion process of hydrogen, but also on the three most important paths: the thermal NO, NNH, and N…”

Section: The Influence Of Hydrogen Injection Parameters and Hydrogen ...mentioning

confidence: 99%

“…They also found that EGR could reduce the peak temperature in the cylinder, thereby reducing NO emissions, as shown in Figure 19 . Duan et al 87 also simplified the hydrogen–air detailed reaction mechanism and studied its applicability in a wide range of λ values. They pointed out that the instantaneous cylinder pressure and NO x emissions of the CFD model with the simplified mechanism could be accurately predicted.…”

Section: Current Status Of Research On Different Topics Of Hices In C...mentioning

confidence: 99%

See 1 more Smart Citation

Research and Development of Hydrogen-Fueled Internal Combustion Engines in China

Wang,

Li,

Hong

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Energy shortages and environmental problems have brought many challenges to China’s development. In the field of transport, hydrogen energy has become a new type of energy that people pay attention to due to its easy production and nonpolluting generation. The use of hydrogen as a fuel in internal combustion engines can be a good way to make a low-cost and clean conversion of the current internal combustion engine, thus realizing the application of hydrogen energy in vehicles. In this study, hydrogen-fueled internal combustion engines (HICEs) are the focus. A review and analysis of the topical issues encountered in the developmental research of HICE is presented, such as the optimization control method of the combustion process, mechanism and suppression method of abnormal combustion (preignition, backfire, knock, and high pressure rise rate in early stages of combustion), influence regularity of hydrogen injection parameters and hydrogen injection modes on the formation and combustion performance of H 2 –air mixture, emissions and control of NO x , formation of H 2 –air mixture, and combustion cycle variation, among others. Multiyear studies in the hydrogen-fueled engines clearly show that abnormal combustion, as preignition, backfire, and the blockage of intake pipe, is likely to occur at high load, and the H 2 injection parameters and the injection modes possess a prominent effect on the engine’s performance and the blockage of the intake pipe, which has an important impact on the preignition and backfire, and the optimal control of the combustion process is a valuable method for resolving the contradictions among inhibiting abnormal combustion, the blockage of the intake pipe, and enhancing hydrogen-fueled engine power.

show abstract

Section: The Influence Of Hydrogen Injection Parameters and Hydrogen ...mentioning

confidence: 99%

Section: Current Status Of Research On Different Topics Of Hices In C...mentioning

confidence: 99%

Research and Development of Hydrogen-Fueled Internal Combustion Engines in China

Wang,

Li,

Hong

et al. 2023

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Generally, temperature, OH mass and NOx emissions distribution in the cylinder are the main variables plotted in 3D graphs. Regarding the kinetics of combustion reactions, the mechanisms more widely employed in literature are Gri-Mech, a detailed mechanism optimized for combustion of natural gas, or reduced mechanisms focused on H 2 combustion reactions [35,44,45].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive analysis of the combustion of low carbon fuels (hydrogen, methane and coke oven gas) in a spark ignition engine through CFD modeling

Ortiz-Imedio

Ortiz

Ortíz

2022

Energy Conversion and Management

View full text Add to dashboard Cite

The use of low carbon fuels (LCFs) in internal combustion engines is a promising alternative to reduce pollution while achieving high performance through the conversion of the high energy content of the fuels into mechanical energy. However, optimizing the engine design requires deep knowledge of the complex phenomena involved in combustion that depend on the operating conditions and the fuel employed. In this work, computational fluid dynamics (CFD) simulation tools have been used to get insight into the performance of a Volkswagen Polo 1.4L port-fuel injection spark ignition engine that has been fueled with three different LCFs, coke oven gas (COG), a gaseous by-product of coke manufacture, H 2 and CH 4 . The comparison is made in terms of power, pressure, temperature, heat release, flame growth speed, emissions and volumetric efficiency. Simulations in Ansys® Forte® were validated with experiments at the same operating conditions with optimal spark advance, wide open throttle, a wide range of engine speed (2000-5000 rpm) and air-fuel ratio (λ) between 1 and 2. A sensitivity analysis of spark timing has been added to assess its impact on combustion variables. COG, with intermediate flame growth speed, produced the greatest power values but with lower pressure and temperature values at λ = 1.5, reducing the emissions of NO and the wall heat transfer. The useful energy released with COG was up to 16.5% and 5.1% higher than CH 4 and H 2 , respectively. At richer and leaner mixtures (λ = 1 and λ = 2), similar performances were obtained compared to CH 4 and H 2 , combining advantages of both pure fuels and widening the λ operation range without abnormal combustion. Therefore, suitable management of the operating conditions maximizes the conversion of the waste stream fuel energy into useful energy while limiting emissions.

show abstract

Chemical kinetic study of methane blended with ammonia cracked gas at elevated temperature and pressure

Zhu,

Zhang,

Miao

et al. 2024

Chemical Engineering Journal

View full text Add to dashboard Cite

Simplification and applicability studies of a hydrogen-air detailed reaction mechanism

Cited by 12 publications

References 24 publications

Research and Development of Hydrogen-Fueled Internal Combustion Engines in China

Research and Development of Hydrogen-Fueled Internal Combustion Engines in China

Comprehensive analysis of the combustion of low carbon fuels (hydrogen, methane and coke oven gas) in a spark ignition engine through CFD modeling

Chemical kinetic study of methane blended with ammonia cracked gas at elevated temperature and pressure

Contact Info

Product

Resources

About