Experimental investigation of the combustion characteristics, emissions and performance of hydrogen port fuel injection in a diesel engine

Sandalcı, Tarkan; Karagöz, Yasin

doi:10.1016/j.ijhydene.2014.09.044

Cited by 140 publications

(24 citation statements)

References 41 publications

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“…For instance, Saravanan et al [64] claimed that NO x emissions can be lowered if hydrogen substitution is more than 30% of energy share, which was attributed to a reduced peak combustion temperature. To the contrary, Sandalci et al [63] reported that increased NO x emissions with hydrogen addition under all tested conditions, from 0-46% hydrogen energy fraction. This was attributed to the pathway of unburned hydrogen, oxidized to HO 2 , boosting the conversion of NO to NO 2 [60].…”

Section: Pilot-fuel-ignited Engine With Port Hydrogen Injectionmentioning

confidence: 83%

“…In terms of pollutant emissions, most studies show that this working mode cannot significantly alleviate the emissions of CO and particulate matter, while the emissions of CO 2 in first order decrease proportionally to the energy substitution rate. Nevertheless, over 50% of CO and smoke emission reduction relative to diesel operation has been reported at substitution rate of 46% [63]. The effect of diesel substitution with hydrogen on NO x emissions is still not fully understood and contradictory engine testing results were reported [60].…”

Section: Pilot-fuel-ignited Engine With Port Hydrogen Injectionmentioning

confidence: 99%

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A Review of Hydrogen Direct Injection for Internal Combustion Engines: Towards Carbon-Free Combustion

et al. 2019

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A paradigm shift towards the utilization of carbon-neutral and low emission fuels is necessary in the internal combustion engine industry to fulfil the carbon emission goals and future legislation requirements in many countries. Hydrogen as an energy carrier and main fuel is a promising option due to its carbon-free content, wide flammability limits and fast flame speeds. For spark-ignited internal combustion engines, utilizing hydrogen direct injection has been proven to achieve high engine power output and efficiency with low emissions. This review provides an overview of the current development and understanding of hydrogen use in internal combustion engines that are usually spark ignited, under various engine operation modes and strategies. This paper then proceeds to outline the gaps in current knowledge, along with better potential strategies and technologies that could be adopted for hydrogen direct injection in the context of compression-ignition engine applications—topics that have not yet been extensively explored to date with hydrogen but have shown advantages with compressed natural gas.

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Section: Pilot-fuel-ignited Engine With Port Hydrogen Injectionmentioning

confidence: 83%

Section: Pilot-fuel-ignited Engine With Port Hydrogen Injectionmentioning

confidence: 99%

A Review of Hydrogen Direct Injection for Internal Combustion Engines: Towards Carbon-Free Combustion

et al. 2019

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“…15 Continuous injection of H 2 in CI engine may also cause combustion challenges, including backfiring, preignition, and engine knocking. 16 Utilization of various gaseous fuels in CI engine has been thoroughly reviewed by Rosha et al 17 It was found that the attained temperature during compression stroke is not sufficient for starting combustion process in H 2 -based CI engines. These engines offer reduced carbon-based emissions because H 2 has zero carbon content.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrogen‐enriched biogas induction on combustion, performance, and emission characteristics of dual‐fuel compression ignition engine

Rosha

Ibrahim

Nanda

et al. 2020

Asia-Pacific J Chem Eng

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Gaseous fuel induction in a compression ignition (CI) engine has picked up much attention over the most recent few years, particularly when it is produced by using renewable sources. In this study, hydrogen-enriched biogas (HEB) was used as a gaseous fuel and co-combusted in dual-fuel CI engine.Experimentation was carried out on a 3.5-kW CI engine test rig in the brake mean effective pressure range between 0 and 3.5 bar, as well as, HEB between 0.1 and 0.5 kg/hr. HEB induction effects on various engine characteristics (combustion, performance, and emission) were studied at rated engine speed (1,500 rpm). Results revealed that the peak cylinder pressure and ignition delay period increased with increasing HEB proportion (0.1 to 0.5 kg/hr) as compared with diesel mode. The calorific value of HEB (57.0 MJ/kg) is higher than diesel (42.0 MJ/kg), which led to improved BTE in dual-fuel mode. The emission results showed that with an increase of HEB rates, the NOx emission mildly decreases, but smoke opacity and hydrocarbon emissions majorly reduce. Thus, the HEB induction has great potential to be a feasible technological solution to overcome low BTE and high hydrocarbon emissions in biogas operated CI engines.

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“…In other research, Sandalci and Karagöz [25] experimentally have explored the effects of hydrogen addition on combustion characteristics, emissions formation, and performance of a diesel engine. They have varied hydrogen gas energy fraction from 0% (pure diesel fuel combustion), 16%, 36% and 46% at 1300 RPM constant engine speed and 5.1 KW of constant indicated power.…”

Section: Introductionmentioning

confidence: 99%

Separate and combined effects of hydrogen and nitrogen additions on diesel engine combustion

Mobasheri

Seddiq

Peng

2018

International Journal of Hydrogen Energy

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Shortage of non-renewable energies, increase in fossil fuel prices and stricter emissions regulations due to high NOx and soot emissions emitted from combustion of heavy diesel fuels by compression ignition engines, has led consumers to use renewable, cleaner and cheap fuels. An investigation has been computationally carried out to explore the influences of hydrogen and nitrogen addition on engine performance such as indicated power and indicated specific energy consumption and amounts of pollutant emissions like NOx, soot, and CO in an HSDI (High-Speed Direct Injection) diesel engine. Optimized sub-models, such as turbulence model, spray model, combustion model and emissions models have selected for the main CFD code. Meanwhile, HF (Homogeneity Factor) has been employed for analysing in-cylinder air-fuel mixing quality under various addition conditions. After validations with experimental data of diesel combustion with a single addition of 4% hydrogen and combined addition of 6% hydrogen + 6% nitrogen, investigations have conducted for modelling mixing and combustion processes with additions of hydrogen and nitrogen by ranges of 2% to 8% (v/v). Results showed that a single addition of H2 increased NOx and decreased CO and soot and improved ISEC and IP. In the case of nitrogen addition, NOx decreased, both CO and soot emission increased and ISEC and IP considerably ruined compared with NDC operation. Based on the results obtained for simultaneous addition of N2 (8% of v/v) and H2 (8% of v/v), NOx and soot emissions decreased by 11.5% and 42.5% respectively, and ISEC and IP improved 25.7% and 13%, respectively. But amount of CO emissions had an increase of 52% should be paid ncecessary attention as a main disadvantage.

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Experimental investigation of the combustion characteristics, emissions and performance of hydrogen port fuel injection in a diesel engine

Cited by 140 publications

References 41 publications

A Review of Hydrogen Direct Injection for Internal Combustion Engines: Towards Carbon-Free Combustion

A Review of Hydrogen Direct Injection for Internal Combustion Engines: Towards Carbon-Free Combustion

Effect of hydrogen‐enriched biogas induction on combustion, performance, and emission characteristics of dual‐fuel compression ignition engine

Separate and combined effects of hydrogen and nitrogen additions on diesel engine combustion

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