Experimental study on combustion characteristics of diesel–hydrogen dual-fuel engine

Qin, Zhaoju; Yang, Zhenzhong; Jia, Chuanfa; Duan, Junfa; Wang, Lijun

doi:10.1007/s10973-019-09147-y

Cited by 28 publications

(13 citation statements)

References 31 publications

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“…The increase of the combustion intensity at Hydrogen use, reflected in the decrease of fuel droplets combustion duration, Figure 7, and increase of flame radius, Figure 8, is in correlation with the increase of maximum pressure and of maximum pressure increase rate at this operating regime with 13% and 29%, respectively [1]. Similar aspects are shown in other research papers [12][13][14][15][16][17][18][21][22][23][27][28][29][30].…”

Section: Resultssupporting

confidence: 79%

“…During combustion, the maximum pressure increases by 3.7% at the same amount of Hydrogen [16]. Through Hydrogen use, Qin [16] observes a sooner heat release achievement per cycle, the heat release is increased during the premixed phase and decreased during the diffusive phase. These phenomena are related to a higher combustion speed of Hydrogen, which assures the reduction of the duration of all combustion phases.…”

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 98%

“…Higher LHV and combustion speed of H 2 leads to these phenomena. Qin [16] shows that the use of Hydrogen leads to the acceleration of the combustion into a diesel engine, the heat release rate increasing by 3.7% at the increase of the Hydrogen amount to 20%. During combustion, the maximum pressure increases by 3.7% at the same amount of Hydrogen [16].…”

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

“…Qin [16] shows that the use of Hydrogen leads to the acceleration of the combustion into a diesel engine, the heat release rate increasing by 3.7% at the increase of the Hydrogen amount to 20%. During combustion, the maximum pressure increases by 3.7% at the same amount of Hydrogen [16]. Through Hydrogen use, Qin [16] observes a sooner heat release achievement per cycle, the heat release is increased during the premixed phase and decreased during the diffusive phase.…”

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

See 3 more Smart Citations

The Influence of Hydrogen on Vaporization, Mixture Formation and Combustion of Diesel Fuel at an Automotive Diesel Engine

et al. 2020

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Hydrogen can be a viable alternative fuel for modern diesel engines, offering benefits on efficiency and performance improvement. The paper analyses the results of a thermodynamic model developed by authors in order to study the influence of Hydrogen addition on a process like vaporization, mixture forming, and combustion at the level of diesel fuel droplets. The bi-zonal model is applied for a dual-fueled diesel engine K9K type designed by Renault for automotives. For the engine operating regime of 2000 rpm speed and 55% engine load, the diesel fuel is partially substituted by Hydrogen in energetic percents of 6.76%, 13.39%, and 20.97%, the engine power being maintained at the same level comparative to classic fueling. At Hydrogen addition, the diesel fuel jets atomization and diesel fuel droplets vaporization are accelerated, the speed of formation of the mixture being increased. Comparative to classic fueling, the use of Hydrogen leads to diesel droplets combustion intensification, with a shortened autoignition delay, reduction of combustion duration, and increase of flame radius.

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Section: Resultssupporting

confidence: 79%

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 98%

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

Section: Hydrogen As Alternative Fuel For Diesel Enginesmentioning

confidence: 99%

See 2 more Smart Citations

The Influence of Hydrogen on Vaporization, Mixture Formation and Combustion of Diesel Fuel at an Automotive Diesel Engine

et al. 2020

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“…While it would be impossible to wipe off the IC engines completely in the near future, continuous improvements in fuel economy are required in automotive industry to achieve the vital targets set by standards [5][6][7][8][9]. To achieve this goal, researchers have been working on different solutions around the world such as using biofuel [10][11][12][13][14][15] and hydrogen energy [16,17] as well as the hybridizations and electrifications [18][19][20] to reduce the engine fuel consumption and emissions. However, still further works are required to reduce the emissions from vehicles.…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis of a novel turbo-compounding system for supercharging and mild hybridization of a gasoline engine

Salek

Babaie

Ghodsi

et al. 2020

J Therm Anal Calorim

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Number of hybrid vehicles has increased around the world significantly. Automotive industry is utilizing the hybridization of the powertrain system to achieve better fuel economic and emissions reduction. One of the options recently considered in research for hybridization and downsizing of vehicles is to employ waste heat recovery systems. In this paper, the addition of a turbo-compound system with an air Brayton cycle (ABC) to a naturally aspirated engine was studied in AVL BOOST software. In addition, a supercharger was modeled to charge extra air into the engine and ABC. The engine was first validated against the experimental data prior to turbo-compounding. The energy and exergy analysis was performed to understand the effects of the proposed design at engine rated speed. Results showed that between 16 and 18% increase in engine mechanical power can be achieved by adding turbo-compressor. Furthermore, the recommended ABC system can recover up to 1.1 kW extra electrical power from the engine exhaust energy. The energy and exergy efficiencies were both improved slightly by turbo-compounding and BSFC reduced by nearly 1% with the proposed system. Furthermore, installing the proposed system resulted in increase in backpressure up to approximately 23.8 kPa.

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Experimental study on the effect of load and air+gas/fuel ratio on the performances, emissions and combustion characteristics of diesel–LPG fuelled single stationary ci engine

yotchou

Banta

Karanja

et al. 2023

Engineering Reports

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Due to the issue of combustion stability when using natural gas and the problem of knocking when using both natural gas and hydrogen, liquefied petroleum gas (LPG) is then a good candidate to use for the dual‐fuel concept since it has been proven to be a good solution to limit the pollutants and the excessive use of fossil resources in the aim to support and advance the African Union's and UN's sustainable development goals. In this paper, the effect of load as well as the air + gas/fuel ratio on the performance, emission, and combustion characteristics of a dual‐fuel diesel–LPG engine, single‐cylinder, four‐stroke, direct injection diesel engine with a rated power of 3.5 kW at a speed of 1500 rpm has been carried out. Experiments have been performed in dual‐fuel mode for a range of loads from 0 to 12 kg and a range of volume flow of LPG from 1 to 5.5 L/min, and the results were compared with those obtained from the single‐fuel mode. Results show that the dual‐fuel mode gives better performance and fewer pollutants than the single‐fuel mode. For example, at low load, Brake thermal efficiency, the indicated thermal efficiency, and mechanical efficiency increased by 83.79%, 24.36%, and 41.77%, respectively, and by 57.48%, 19.84%, and 24.37% at high load when we moved from the single‐fuel mode to the dual‐fuel mode. The smoke, carbon monoxide, and NOx decreased by 24.3%, 94.2%, and 96.2% respectively at low load and by 62.3%, 89.8%, and 91.4% at high load. And, no knocking came up during this research compared to natural gas or hydrogen dual‐fuel engines.

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Experimental study on combustion characteristics of diesel–hydrogen dual-fuel engine

Cited by 28 publications

References 31 publications

The Influence of Hydrogen on Vaporization, Mixture Formation and Combustion of Diesel Fuel at an Automotive Diesel Engine

The Influence of Hydrogen on Vaporization, Mixture Formation and Combustion of Diesel Fuel at an Automotive Diesel Engine

Energy and exergy analysis of a novel turbo-compounding system for supercharging and mild hybridization of a gasoline engine

Experimental study on the effect of load and air+gas/fuel ratio on the performances, emissions and combustion characteristics of diesel–LPG fuelled single stationary ci engine

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