Recent progress in the use of hydrogen as a fuel for internal combustion engines

Verhelst, Sebastian

doi:10.1016/j.ijhydene.2013.10.102

Cited by 375 publications

(125 citation statements)

References 63 publications

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“…Recently, hydrogen as a potential alternative fuel for use in internal combustion engines has gained interest among researchers due to its wide flammability range and the elimination of major pollutants [1]. Direct injection can be an optimal utilization of hydrogen since it removes the low hydrogen density restriction and enables a higher volumetric efficiency [2].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Mixedness on Ignition for Hydrogen Direct Injection in a Constant Volume Combustion Chamber

Shahsavan¹,

Morovatiyan²,

Mack³

2018

Preprint

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Abstract:The ignition behavior of the fuel in non-premixed turbulent combustion applications such as diesel engines and gas turbines is dependent on the mixing rate of the injected fuel and the working fluid. In this study, three-dimensional modeling of hydrogen injection into a constant volume combustion chamber (CVCC) is used to investigate the correlation between the mixing rate and important parameters of nonpremixed combustion, such as ignition delay. Mixedness is quantified using mean spatial variation, which reflects the homogeneity of the mixture, and mean scalar dissipation, which represents the local gradients of the scalar. The case studies include nitrogen and argon as working fluids; injection velocities and nozzle diameters are varied for comparison. For consistency, the injected mass is kept constant and the injection duration is adjusted accordingly. The results indicate that a strong correlation exists between ignition delay and the defined mixedness parameters. The cases with higher mixedness values lead to a shorter ignition delay and a higher maximum flame temperature. Changing the working fluid and injection parameters can effectively modify the mixedness, and consequently affect the ignition onset and flame properties.

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Section: Introductionmentioning

confidence: 99%

The Influence of Mixedness on Ignition for Hydrogen Direct Injection in a Constant Volume Combustion Chamber

Shahsavan¹,

Morovatiyan²,

Mack³

2018

Preprint

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“…Using hydrogen as fuel in internal combustion engines has long been of interest to the combustion community [4][5][6]. Although hydrogen production is still a challenge and there are some obstacles with distribution and storage, a broad flammability range and the elimination of major pollutants make it a potential alternative fuel for use in internal combustion engines.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Heavy Working Fluids on Hydrogen Combustion

Shahsavan¹,

Mack²

2017

Preprint

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Abstract:The thermodynamic efficiency of internal combustion engines is dependent on the compression ratio and specific heat ratio of the working fluid. Using a mixture of oxygen and noble gases instead of air can increase the thermal efficiency due to their higher specific heat ratio. It also has advantage of eliminating NOx caused by lack of nitrogen. In this study, the three dimensional turbulent injection of hydrogen into a constant volume combustion chamber has been modeled and compared to mixtures of oxygen with nitrogen, argon and xenon. All conditions including the mass flow rate of the injected fuel, injection velocity, and initial temperature and pressure of the chamber were kept constant. The results indicate that the hydrogen jet has more penetration length in nitrogen compared to argon and xenon. However, the smaller penetration lengths lead to more complex jet shapes and larger cone angles. In combination with the higher specific heat ratio, combustion in a noble gas environment results in higher temperatures and OH radical concentrations. Furthermore, mixedness is investigated using mean spatial variation and mean scalar dissipation. Hydrogen in argon shows a better mixing rate compared to nitrogen and xenon due to higher diffusivity.

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“…Hydrogen is regarded as one of promising alternative clean fuels for fossil fuels [3] and also to fill the need for sustainable energy development and environment protection [4]. There are three methods of hydrogen-rich gas: steam oxidation (POX), and auto-thermal reforming (ATR).…”

Section: Introductionmentioning

confidence: 99%

Hydrogen-Rich Gas for Clean Combustion in a Dual-Fuel Compression Ignition Engine

Wu¹,

Hsu²,

Horng³

2017

JOCET

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Abstract-Since burning of hydrogen emits fewer pollutants, it has been using as a clean alternative or auxiliary fuel of engines. This study is to develop a diesel/ hydrogen-rich gas dual fuel engine with methanol steam reforming method and design of EGR (Exhaust Gas Recirculation) system to investigate engine performance and exhausting pollutants. The measured items are composed of the gas pressure of cylinder, crank angle, diesel consumption rate, hydrogen consumption rate, air flow rate, and emissions (HC, CO 2 , NO x , and Smoke), and the contents of hydrogen-rich gas. The authors analyze how the hydrogen-rich gas addition with EGR influences the combustion performance and emissions. The heat recovery reforming system can solve the storage and producing problem of hydrogen. Furthermore, the authors little altered the engine structure, and it is easy to put the energy saving and pollutants decrease into effect.Index Terms-Clean combustion, diesel/hydrogen-rich gas engine, emission reduction, exhaust heat recovery, exhaust gas recirculation, methanol steam reforming.

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Recent progress in the use of hydrogen as a fuel for internal combustion engines

Cited by 375 publications

References 63 publications

The Influence of Mixedness on Ignition for Hydrogen Direct Injection in a Constant Volume Combustion Chamber

The Influence of Mixedness on Ignition for Hydrogen Direct Injection in a Constant Volume Combustion Chamber

The Effect of Heavy Working Fluids on Hydrogen Combustion

Hydrogen-Rich Gas for Clean Combustion in a Dual-Fuel Compression Ignition Engine

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