Effect of Hydrogen Addition at Different Levels on Emissions and Performance of a Diesel Engine

Karagöz, Yasin

doi:10.18186/journal-of-thermal-engineering.372968

Cited by 10 publications

(8 citation statements)

References 40 publications

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“…These factors help to improve the oxidation process of carbon. Similar results were also reported by [46,47]. Several factors affect the formation of NO x emissions inside the cylinder, e.g., combustion temperature, oxygen availability, combustion time, etc.…”

Section: Engine Emissionssupporting

confidence: 88%

Relative Change in SI Engine Performance Using Hydrogen and Alcohol as Fuel Supplements to Gasoline

Yamin¹,

Sheet²,

Rida³

2021

Adv. Sci. Technol. Res. J.

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A simulation study on the effect of hydrogen and ethanol addition as supplementary fuel for gasoline engine at lean mixture (equivalence ratio ϕ = 0.8) was carried out to reduce the gasoline share in the mixture, thus reducing the fuel consumption and harmful emissions. The effect of supplementary fuels on engine performance, emissions, and availability was investigated. This was done by changing the ratio between gasoline and the supplementary fuels in the fuel mixture to achieve the required equivalence ratio. The first part of the simulation consisting of the performance and emissions calculated using the first law, was conducted for all engine speeds. The second part consisting of an availability analysis was conducted at the rated speed of 2750 rpm. The simulation study was conducted using the data obtained from measurements of Ricardo E6/T engine parameters (variable compression ratio engine). The data was also used to verify the models. The study shows that the hydrogen addition reduced the carbon monoxide (CO) and nitrogen oxides (NO 2) share at the lean mixture. The hydrogen addition significantly improved the heat release rate compared with pure gasoline; however, the heat released was close to the top dead center due to its fast burning speed. The ethanol addition improved the first law performance of the engine, e.g., power and efficiency; however, at the cost of increased heat loss. It also improved the indicated work availability in comparison with the addition of hydrogen.

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Section: Engine Emissionssupporting

confidence: 88%

Relative Change in SI Engine Performance Using Hydrogen and Alcohol as Fuel Supplements to Gasoline

Yamin¹,

Sheet²,

Rida³

2021

Adv. Sci. Technol. Res. J.

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“…The effect of the LPG + H2 gas mixture addition (0%, 15%, 30% and 45%) on brake thermal efficiency, CO, THC, NOx and smoke emissions in different energy contents at 1200 rpm constant engine speed and 100% brake engine load investigated experimentally on the work [30][31][32]. The gas fuel mixture was sent through the suction manifold through the LPG-CNG injector at the suction stroke.…”

Section: Resultsmentioning

confidence: 99%

Effect of Different Levels of Hydrogen + LPG Addition on Emissions and Performance of a Compression Ignition Engine

Köten¹

2019

Journal of Thermal Engineering

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Compelling emission regulations and diesel engines damage on environment have led researchers to work on alternative fuels such as LPG and hydrogen in recent years. Diesel engine costs are also increasing, especially on the increased costs of after-treatment equipment used in diesel engines. It is also known that diesel engines release NOx and smoke emissions, which are highly harmful to the environment and to the living health. The effect of the emissions of LPG + H2 (0%, 15%, 30% and 45%) with different energy contents at full load and same torque (70 Nm) at constant engine speed of 1200 rpm is investigated on CO, THC, NOx and Smoke emissions. From the results obtained, there was a slight increase in brake thermal efficiency, CO and THC emissions. However, significant improvement in NOx and smoke emissions has been achieved. The results show that using LPG + H2 in diesel engines, older technology and lower cost after-treatment equipment can be used, and that NOx and smoke emissions of diesel engines can be reduced significantly. Also, using small amount of hydrogen (20% of total gas mixture) and LPG, an important improvement can be achieved, and the harmful effects of diesel engines can be suppressed thanks to unique properties of hydrogen fuel.

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“…Compression ignition (CI) engines integrated with HHO gas was studied by Yilmaz et al 45 Karagöz 46 studied the diesel engine response to the introduction of different levels of hydrogen into engine. HHO gas has numerous applications due to its advantages alongside its small effect of environmental contamination 47‐51 …”

Section: Introductionmentioning

confidence: 99%

Productivity enhancement of single‐slope solar still using oxy‐hydrogen gas as fuel: An experimental approach

Nabil

Dawood

2020

Int J Energy Res

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This study is modification of the conventional single-slope solar still to improve in the day-to-day production of potable water. The studied solar still is modified to active solar still using new technique which uses oxy-hydrogen (HHO) gas burning as a fuel to increase the temperature of the saline water in the solar still. The power sustainability of HHO gas that used in sea water desalination is one of the main research goals. HHO dry cell is implemented to generate the required amount of HHO gas which is used as fuel of gas furnace. The traditional gas furnace uses HHO gas as fuel without modifications. Two identical HHO gas generators and a gas furnace are integrated with a solar still and four solar panels have power 1000 W, each photovolatic solar module has dimensions 1650 mm × 992 mm × 46 mm. The suggested solar still is fabricated and verified for selected months (June, July, and August) with the meteorological conditions of Ismailia, Egypt. The ratio between the solar still

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Effect of Hydrogen Addition at Different Levels on Emissions and Performance of a Diesel Engine

Cited by 10 publications

References 40 publications

Relative Change in SI Engine Performance Using Hydrogen and Alcohol as Fuel Supplements to Gasoline

Relative Change in SI Engine Performance Using Hydrogen and Alcohol as Fuel Supplements to Gasoline

Effect of Different Levels of Hydrogen + LPG Addition on Emissions and Performance of a Compression Ignition Engine

Productivity enhancement of single‐slope solar still using oxy‐hydrogen gas as fuel: An experimental approach

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